diff --git a/nix/channel-rust-nightly.toml b/nix/channel-rust-nightly.toml
index 7eb34ed..9807bf0 100644
--- a/nix/channel-rust-nightly.toml
+++ b/nix/channel-rust-nightly.toml
@@ -1,90 +1,90 @@
 manifest-version = "2"
-date = "2019-03-19"
+date = "2019-03-24"
 [pkg.cargo]
 version = "0.36.0-nightly (0e35bd8af 2019-03-13)"
 [pkg.cargo.target.aarch64-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-aarch64-unknown-linux-gnu.tar.gz"
-hash = "b9f074d467c7ae7d51e3ba08aa66d7b2c8ff4321d0739284f37e903b0c17786b"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-aarch64-unknown-linux-gnu.tar.xz"
-xz_hash = "19dfb7a365d61904a4aa02f46386413773dc7d914f5dbfe2eb7a3f10205d37f6"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-aarch64-unknown-linux-gnu.tar.gz"
+hash = "7202d3a8c3c3a300af899e5c74e5df7301d6f15305839553a1ef9fafb672a647"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-aarch64-unknown-linux-gnu.tar.xz"
+xz_hash = "3f0b2a1845584a0a5635fb323988793e56c2cd7940366793195bdf2fe6b2efe7"
 
 [pkg.cargo.target.arm-unknown-linux-gnueabi]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-arm-unknown-linux-gnueabi.tar.gz"
-hash = "6a7f622a16c610eb2ca029825e17fb37869bd5650e48e485eab495a7fb03c48c"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-arm-unknown-linux-gnueabi.tar.xz"
-xz_hash = "f4844ea4a59cc97bbaf5f0f94739d4a31f5b558de42559a6e00943765d6393cb"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-arm-unknown-linux-gnueabi.tar.gz"
+hash = "0832c1fd8762f6924e2317b7d9d88ef3ba930a5714fc753d177dcdb8a3cd8881"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-arm-unknown-linux-gnueabi.tar.xz"
+xz_hash = "54ef4cd603392860ec4b6542d69618dd53a5dbfcf28aaaf9fa0e4f01666eb5af"
 
 [pkg.cargo.target.arm-unknown-linux-gnueabihf]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-arm-unknown-linux-gnueabihf.tar.gz"
-hash = "5fc8bb04d4dac8a5bc440966964712f4c96bfe482a6a892ce562c7a9c034b395"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-arm-unknown-linux-gnueabihf.tar.xz"
-xz_hash = "9a7e10df78596b99c8dfd2f7590f700644927161ef8b1c5aed356bb54640bcc0"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-arm-unknown-linux-gnueabihf.tar.gz"
+hash = "bb95dac2353ec5697b0548e6f66bc582f9d2cbdacc93afea0d1e53643cb7c733"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-arm-unknown-linux-gnueabihf.tar.xz"
+xz_hash = "a8abcb0a7800b2293ac846e9c2356db20001fd877b0b8d77eb0a7203969324c2"
 
 [pkg.cargo.target.armv7-unknown-linux-gnueabihf]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-armv7-unknown-linux-gnueabihf.tar.gz"
-hash = "c66ecada21f38e1e29a29dad023fc555cd742c0310b66cf106c23e0d899dbc1f"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-armv7-unknown-linux-gnueabihf.tar.xz"
-xz_hash = "910d77778d209ad9ce698dbe965c65e5fd11dda00ddd898e2f46e1c3999c3314"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-armv7-unknown-linux-gnueabihf.tar.gz"
+hash = "8e0f354b3311f8b95c23b8c461c0aafaa9a32b6a982e1a530a8e773251139bed"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-armv7-unknown-linux-gnueabihf.tar.xz"
+xz_hash = "eba34513dc0b905305461d42cec4345ecd2f7c22b6f059bfc3d545d1b0e20f27"
 
 [pkg.cargo.target.i686-apple-darwin]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-i686-apple-darwin.tar.gz"
-hash = "010a95fcfe569fd127f2f979d5f3341f80b3f5bef5efcc0be28428ac4e0b6eeb"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-i686-apple-darwin.tar.xz"
-xz_hash = "c04a1ac47b0f9d99debc98d0e14bbb7f1be2d7f09a0d0821517600e10621ad0e"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-i686-apple-darwin.tar.gz"
+hash = "1cb8f193ea402bb3bf2f9b0629276942b8f024e6261c3e8e23fb0ae7cabc9e9b"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-i686-apple-darwin.tar.xz"
+xz_hash = "d50cb0837f9ac30c7505ead70cc67906d1ccdf21628862945fba9d7f013edf90"
 
 [pkg.cargo.target.i686-pc-windows-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-i686-pc-windows-gnu.tar.gz"
-hash = "fc19e1fdd89cd824db1e402ade0cdea619bf28490384a5eeba8afa5fa177fa5a"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-i686-pc-windows-gnu.tar.xz"
-xz_hash = "410387f191266de8b8b7ae394c4764dc1d2a1a5fcf274f93691e4626a6fbb554"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-i686-pc-windows-gnu.tar.gz"
+hash = "ddb08cd83ea939f2b764fde5a06c45cd463ba7a0b8c1c7090ffd73c2e0503042"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-i686-pc-windows-gnu.tar.xz"
+xz_hash = "985b513638521b17ea2f74ddb943ff3cf6963209027a8db263cde52b329a9744"
 
 [pkg.cargo.target.i686-pc-windows-msvc]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-i686-pc-windows-msvc.tar.gz"
-hash = "f47d574f6d03fbf477051ee7885eb1d322c5121d89d4ea31dd108aad085989f3"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-i686-pc-windows-msvc.tar.xz"
-xz_hash = "676a4750979203a25e4c5f9734ce075a5f02e6a6122881fd0b869cdf8a6e13c5"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-i686-pc-windows-msvc.tar.gz"
+hash = "7ed46a658a279a781f6371615a99621743d14c29b0a6f373fac215a990d00ac0"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-i686-pc-windows-msvc.tar.xz"
+xz_hash = "ec00e427d22094e0d18ed0e1468164ef81e55d9fb89e81657cc4a8b987b1ace1"
 
 [pkg.cargo.target.i686-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-i686-unknown-linux-gnu.tar.gz"
-hash = "8a7a2c2c04b909ee69d9c518b9dfa07cce75a0f2da54805949a0fe867e3ffec1"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-i686-unknown-linux-gnu.tar.xz"
-xz_hash = "ef932bd040e33ac7fca5b7465c236ed5182ac0b3a242f28b901e045b58b29c96"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-i686-unknown-linux-gnu.tar.gz"
+hash = "6d35f6fea5b076f50e7cdd69239fd7c8bb6922dd2d8dec41990c494f973f97a0"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-i686-unknown-linux-gnu.tar.xz"
+xz_hash = "ab879a0c11b9b6b0c493b89115464d410835771f4fd9850b6d917865ca6e0eb9"
 
 [pkg.cargo.target.mips-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-mips-unknown-linux-gnu.tar.gz"
-hash = "01ca484bc8f5c16b63fd42578b8d43e159085519645a8c47541171fa5d1921c8"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-mips-unknown-linux-gnu.tar.xz"
-xz_hash = "6fc548ab9292c34b5bb54aabfbb42dee8d28f3cf3540b18bc2a5b15be625a2cd"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-mips-unknown-linux-gnu.tar.gz"
+hash = "56fcffb64f2a09c8999f450f9ab0f44ce1fde188119b79875d3c9d1668320364"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-mips-unknown-linux-gnu.tar.xz"
+xz_hash = "a658f2826bef8f2e483a146af0768267eea01c52d6e022aed46e4650841e3adb"
 
 [pkg.cargo.target.mips64-unknown-linux-gnuabi64]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-mips64-unknown-linux-gnuabi64.tar.gz"
-hash = "b3fba0f23288d67cc0acd74dc787151d36559e31d16e5ebfbb00e151945afd2d"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-mips64-unknown-linux-gnuabi64.tar.xz"
-xz_hash = "d2f78218b3c1d63fa94bb8eb63d07d872a65a251bd58d0c0c177476fd2baabc2"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-mips64-unknown-linux-gnuabi64.tar.gz"
+hash = "ef1d08ce9364d8e08c9147aff3772ee8dabb9a83646f61eef46a408a3699117c"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-mips64-unknown-linux-gnuabi64.tar.xz"
+xz_hash = "35af8a114c384213eefc9b751e6fecb7d93fa65f9cd3d112784caa089afd743f"
 
 [pkg.cargo.target.mips64el-unknown-linux-gnuabi64]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-mips64el-unknown-linux-gnuabi64.tar.gz"
-hash = "077fc27e0c2db4689d625552b476176a5bcc54d9c5f3e625ebd4b5c2c8a0694d"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-mips64el-unknown-linux-gnuabi64.tar.xz"
-xz_hash = "d2b17f1ac904ad00a69ee4e8221c9afa0840b3ba299e36a7d1242a777dc0bd12"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-mips64el-unknown-linux-gnuabi64.tar.gz"
+hash = "aa9833df17b5a1ccb134527ac5ef0a11345fa84d8bb6209047f640b664bea3cb"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-mips64el-unknown-linux-gnuabi64.tar.xz"
+xz_hash = "b8dc1338d0f1fd53c8790008110caa595332bf36c7d9555de9f161b25f7f91d6"
 
 [pkg.cargo.target.mipsel-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-mipsel-unknown-linux-gnu.tar.gz"
-hash = "ec1566b9bb29a161395cd50961bdabab526fbc346096009a78966e47af1a704f"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-mipsel-unknown-linux-gnu.tar.xz"
-xz_hash = "f13688693dbf04b6423d2feb50563ab70904e6cbc54bbd685680dd8d291ef246"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-mipsel-unknown-linux-gnu.tar.gz"
+hash = "432e0507bc8f663407b479ee084b229ea2d52d81e13368a6d3ad848f7d4d6414"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-mipsel-unknown-linux-gnu.tar.xz"
+xz_hash = "cb5cb6395413070dc0ccd1e79898e8735bb1132341ba7e619de099d7523df6c6"
 
 [pkg.cargo.target.mipsisa32r6-unknown-linux-gnu]
 available = false
@@ -100,80 +100,80 @@ available = false
 
 [pkg.cargo.target.powerpc-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-powerpc-unknown-linux-gnu.tar.gz"
-hash = "7ada69a733aacf7b7a67edf2a063edc9c5e808bf7cbf612220e37dd2997f662b"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-powerpc-unknown-linux-gnu.tar.xz"
-xz_hash = "2e432c4b026b432868eec5f757233152910b66091779adb428a95a318e148332"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-powerpc-unknown-linux-gnu.tar.gz"
+hash = "25005a9d2eb18148f06980894926c6f43e90636c7d157039256e573782ac05c4"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-powerpc-unknown-linux-gnu.tar.xz"
+xz_hash = "e12d199bf603f41ee3dc9794e6a355b80d8c935f1b945b08cd03c9ceae1277df"
 
 [pkg.cargo.target.powerpc64-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-powerpc64-unknown-linux-gnu.tar.gz"
-hash = "d748c8bf526e3c951c9a97476ea9f75d898a90baf7f7069e8674a5a622e75573"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-powerpc64-unknown-linux-gnu.tar.xz"
-xz_hash = "24fc33be3ecda5bd7cee804ba35c62ce86451315dbd6d3c5ad94f71bc689403b"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-powerpc64-unknown-linux-gnu.tar.gz"
+hash = "07fb079cd8914c4dbdee3d6ddb3bb5ac10a752ca0d4c3001a5eead1eb65d9c76"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-powerpc64-unknown-linux-gnu.tar.xz"
+xz_hash = "b0a2c1a1f4b0979c8e81f37b281968f535dca1d5bc770bcf23dcd51c4c300648"
 
 [pkg.cargo.target.powerpc64le-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-powerpc64le-unknown-linux-gnu.tar.gz"
-hash = "58b6dcbfbfeb9b9d6cb9c547facfbc8e24beb14480cbfd2ad5d996237e4a8f90"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-powerpc64le-unknown-linux-gnu.tar.xz"
-xz_hash = "4157971b8880f510b7904ba4c8fb0c45b604e341619318dab730e94794c4daba"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-powerpc64le-unknown-linux-gnu.tar.gz"
+hash = "450a596341883ed777c68d6b8b31b7d285c46af65e33d79f191a87ad2b788604"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-powerpc64le-unknown-linux-gnu.tar.xz"
+xz_hash = "23ee6b15f004cd0cf724163e89303170cf5c6ecb937ad1225642405c10562642"
 
 [pkg.cargo.target.s390x-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-s390x-unknown-linux-gnu.tar.gz"
-hash = "edb3dc160ed7b6b742592f5e0771a9b3cd9ab0406ae881452a89bead31002056"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-s390x-unknown-linux-gnu.tar.xz"
-xz_hash = "fdb80784e6f3dc5779b572f2ab307b922bf1a5e4de698ac061b1b7775ef1e072"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-s390x-unknown-linux-gnu.tar.gz"
+hash = "6a1b1ea5d7cfc6abb44e96c939edd33144a8cd2ceec739db1e7f6281ecf2d883"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-s390x-unknown-linux-gnu.tar.xz"
+xz_hash = "b004b1f45dcd2391d3cd0c0acfe18b0f7d2df24506fc1e01baf65ba6e1d7d020"
 
 [pkg.cargo.target.x86_64-apple-darwin]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-x86_64-apple-darwin.tar.gz"
-hash = "a4069b68e9242613057f1a197c20d3dd59c535a59f25de47494d5a2eef3abc0d"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-x86_64-apple-darwin.tar.xz"
-xz_hash = "5622782735d58b00ae57e5a3e579e565477ca13d9cc1a32cb351473db60f35c2"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-x86_64-apple-darwin.tar.gz"
+hash = "6ed5f32fb90fb310631587cd0b743a6afc9721361241e6a108491ca71b30b0dd"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-x86_64-apple-darwin.tar.xz"
+xz_hash = "876900022f35021f8412455d9f0a37c9657335ae50f9b8ab43044fc0a2e50427"
 
 [pkg.cargo.target.x86_64-pc-windows-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-x86_64-pc-windows-gnu.tar.gz"
-hash = "9558f2ad0f566d29c0957489a15130084cc1dcc2c0ca7a7b5dce589106619eb7"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-x86_64-pc-windows-gnu.tar.xz"
-xz_hash = "bdc47be2e727ff467ba774b1b5c771cad2965d78044d0336590e06848303be56"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-x86_64-pc-windows-gnu.tar.gz"
+hash = "06ffcc08d0c647dfe0759690ebdd44e6422a0cdccba71e83d3dae78f4f299be6"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-x86_64-pc-windows-gnu.tar.xz"
+xz_hash = "63c7982c67d386a629b626a9f7c458bc8da37652c75d7abd2dc88224929b30b1"
 
 [pkg.cargo.target.x86_64-pc-windows-msvc]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-x86_64-pc-windows-msvc.tar.gz"
-hash = "79e7f08ab4642407e1a861cd06b0e8f8cae7d9ed6862fe71fe31956351d909ad"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-x86_64-pc-windows-msvc.tar.xz"
-xz_hash = "7a336f0bef0a7c84a06a061a0961fb8e8916ad5b6d99f6b4b17b9153a7fa991c"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-x86_64-pc-windows-msvc.tar.gz"
+hash = "4afca474d570c416f951633d23020d0d013e4efd855be1b594e5a07e06130800"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-x86_64-pc-windows-msvc.tar.xz"
+xz_hash = "41020b0c60c01e3de46e809c688600acc35e03942c604901f43d3146637c4017"
 
 [pkg.cargo.target.x86_64-unknown-freebsd]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-x86_64-unknown-freebsd.tar.gz"
-hash = "24b4947e26dc3d80d26cc38076061e01885a780f875c9e0f5abed1eae74b267f"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-x86_64-unknown-freebsd.tar.xz"
-xz_hash = "f767ae1fd90168e687a3053f92a7776f8b9d7e8b102fb5f57533916a816ed139"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-x86_64-unknown-freebsd.tar.gz"
+hash = "ff69ca3de634f083f580b9b1fdaca888c706dc69b31e5ba61c1269d49bb8ce32"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-x86_64-unknown-freebsd.tar.xz"
+xz_hash = "1961220b60cd02e17472f756042c8e4998e906b1cdc3f38a4e548d20567c1c5e"
 
 [pkg.cargo.target.x86_64-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-x86_64-unknown-linux-gnu.tar.gz"
-hash = "08886fd253c2bcd2188296c0de391a05f5c5be63aec044d1319b6b5ee16d4e0f"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-x86_64-unknown-linux-gnu.tar.xz"
-xz_hash = "144eb2fb95f033e45dbcd27d2510d5658f9b148fde586bae50405c2240f8c739"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-x86_64-unknown-linux-gnu.tar.gz"
+hash = "7f85e203d5a4c83746a27499e3fe9e076a42ad46d72f50e03f831eeea17444fa"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-x86_64-unknown-linux-gnu.tar.xz"
+xz_hash = "fd9dea0321201df93ed895574d326a9f46ad9c7edf2bc2aa71907656d0a17319"
 
 [pkg.cargo.target.x86_64-unknown-linux-musl]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-x86_64-unknown-linux-musl.tar.gz"
-hash = "8d3a348b3ba35e2c852cef93d3c11dde9176f65605da4c5300c963ebe6fb3689"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-x86_64-unknown-linux-musl.tar.xz"
-xz_hash = "03b412abf7e76a711295f24bee55ab698425ef9af8c2539280f5963c16a1645b"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-x86_64-unknown-linux-musl.tar.gz"
+hash = "2bf6e8fbbd5a546fe21b5b356bf7d315bd3ee82f0b47b0af6a11ad9950015a79"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-x86_64-unknown-linux-musl.tar.xz"
+xz_hash = "18f6ce18435655a2d970b62d472ee641639120d73332756e959a3088ed7c7edc"
 
 [pkg.cargo.target.x86_64-unknown-netbsd]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-x86_64-unknown-netbsd.tar.gz"
-hash = "8f8cede0711771c8e69bf72cbc0cccb6bc365b57f7433e3b19053236f3d08e5e"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/cargo-nightly-x86_64-unknown-netbsd.tar.xz"
-xz_hash = "c9a8745d7d2f9427494f9c962d86440ea6625d3e3f849b677c69452a1a79144b"
+url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-x86_64-unknown-netbsd.tar.gz"
+hash = "e3b99d71a5b88618fedfc9400e3f3352eeff8fce27f8229487aff194470100d3"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/cargo-nightly-x86_64-unknown-netbsd.tar.xz"
+xz_hash = "690a08158f5a8dd7e28ad2a9d650419ee50d024921bfa6e6bf1ca122c975eadf"
 
 [pkg.clippy-preview]
 version = ""
@@ -259,7 +259,7 @@ available = false
 available = false
 
 [pkg.lldb-preview]
-version = "1.35.0-nightly (0f88167f8 2019-03-18)"
+version = "1.35.0-nightly (0633c55d2 2019-03-23)"
 [pkg.lldb-preview.target.aarch64-apple-ios]
 available = false
 
@@ -346,10 +346,10 @@ available = false
 
 [pkg.lldb-preview.target.i686-apple-darwin]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/lldb-nightly-i686-apple-darwin.tar.gz"
-hash = "56d7c475a20ea30d5482062fdb4da23db2dbab82752c26e64bf7f7d8b8e013a0"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/lldb-nightly-i686-apple-darwin.tar.xz"
-xz_hash = "f130bf6fa8843347a88511b226574dbeb69e46da47199fdba123cf89ea2c07a4"
+url = "https://static.rust-lang.org/dist/2019-03-24/lldb-nightly-i686-apple-darwin.tar.gz"
+hash = "30af1318c532644dd157d00b8cf736dc11b75bef9d52ea2d6a31ea6d3a2ea1b9"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/lldb-nightly-i686-apple-darwin.tar.xz"
+xz_hash = "3311d25c618870941276239f88d1bc95fe376ac19d48cce3e82f2f9323a00d06"
 
 [pkg.lldb-preview.target.i686-linux-android]
 available = false
@@ -461,10 +461,10 @@ available = false
 
 [pkg.lldb-preview.target.x86_64-apple-darwin]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/lldb-nightly-x86_64-apple-darwin.tar.gz"
-hash = "74acaffc104069d15c13d9c04363b48f4b3dccacacc15d43059c42293b49a8aa"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/lldb-nightly-x86_64-apple-darwin.tar.xz"
-xz_hash = "e3f190dc5dc9ed7303bd05fc0de17ad0ea9176cd9a3a19b052d9ba8d66586492"
+url = "https://static.rust-lang.org/dist/2019-03-24/lldb-nightly-x86_64-apple-darwin.tar.gz"
+hash = "b1ef559c3b23c5b61da8023ec78102b8d63368a0b3c80263eb58ef117b7f4f5a"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/lldb-nightly-x86_64-apple-darwin.tar.xz"
+xz_hash = "b9cc6446de2dc8643408e063acd7a41007204162c87e559900c34ff042525f81"
 
 [pkg.lldb-preview.target.x86_64-apple-ios]
 available = false
@@ -512,7 +512,7 @@ available = false
 available = false
 
 [pkg.llvm-tools-preview]
-version = "1.35.0-nightly (0f88167f8 2019-03-18)"
+version = "1.35.0-nightly (0633c55d2 2019-03-23)"
 [pkg.llvm-tools-preview.target.aarch64-apple-ios]
 available = false
 
@@ -530,10 +530,10 @@ available = false
 
 [pkg.llvm-tools-preview.target.aarch64-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-aarch64-unknown-linux-gnu.tar.gz"
-hash = "72b3d99542acf66f6048af3ade11df1a7106c42649bff3d05a9d700462b8ca17"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-aarch64-unknown-linux-gnu.tar.xz"
-xz_hash = "33f84e3fc3d9cf56350525731c688af7199622fd9fd08b6c6c3c3b84724263c9"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-aarch64-unknown-linux-gnu.tar.gz"
+hash = "356feb91d96fdb0cf8852dbfa5bb24f54c8de4a48795bacb2bf803cabb466ab5"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-aarch64-unknown-linux-gnu.tar.xz"
+xz_hash = "9ae1fd471e0cb509e1a36852b8788672d8d693d33ce95362c0af614695de6379"
 
 [pkg.llvm-tools-preview.target.aarch64-unknown-linux-musl]
 available = false
@@ -543,17 +543,17 @@ available = false
 
 [pkg.llvm-tools-preview.target.arm-unknown-linux-gnueabi]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-arm-unknown-linux-gnueabi.tar.gz"
-hash = "6b2def69e7361c2282d16db135871bd762184ee4722cd6d4d00c60b9b0bd8ba3"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-arm-unknown-linux-gnueabi.tar.xz"
-xz_hash = "072c304a712f29c5f9f83457d731610f0e4b55d54e0bcd53f79d444cbff44a13"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-arm-unknown-linux-gnueabi.tar.gz"
+hash = "778dd230949a7826b5bb0f1afa7b37aa7b6a32029ff316dd8f03de43496fafdd"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-arm-unknown-linux-gnueabi.tar.xz"
+xz_hash = "77195447c069dc67291d91b4f721200776d5883316eb115e9a4b26189fd14837"
 
 [pkg.llvm-tools-preview.target.arm-unknown-linux-gnueabihf]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-arm-unknown-linux-gnueabihf.tar.gz"
-hash = "54ac3a31e7c8228f47d87bc9cdb85b78a9d030b92577f8542a294a647f312b59"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-arm-unknown-linux-gnueabihf.tar.xz"
-xz_hash = "b51ddd26df71897132567138535b74607a5e0e7b1dd775240963eb7336e8c75e"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-arm-unknown-linux-gnueabihf.tar.gz"
+hash = "4b8d9e471e950bcb8e2b26caab6265fc026132a14cbbc0ef67de87f9c9bb33da"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-arm-unknown-linux-gnueabihf.tar.xz"
+xz_hash = "7a1faf785f6abaa93bb143fa944f94ece5184bae389e88862fb358873f29d929"
 
 [pkg.llvm-tools-preview.target.arm-unknown-linux-musleabi]
 available = false
@@ -581,10 +581,10 @@ available = false
 
 [pkg.llvm-tools-preview.target.armv7-unknown-linux-gnueabihf]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-armv7-unknown-linux-gnueabihf.tar.gz"
-hash = "237f7e4ea4f275c2c6f7a7cc2d741edcf4cf7d985d3e2ea44d8f18f85e126baf"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-armv7-unknown-linux-gnueabihf.tar.xz"
-xz_hash = "60803eb138fa107d4290bf97a21f6b4ae8e0a7c5b37db876922bc21d1a3412f8"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-armv7-unknown-linux-gnueabihf.tar.gz"
+hash = "6302453608c3a9a293f65d1135a6052dac5f4ca453d572eea92dcfa31c148cfa"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-armv7-unknown-linux-gnueabihf.tar.xz"
+xz_hash = "4ec50da808b33467f69ce7a0a8d659fee2a4c1e9c131ca091bbf6bb1aa2a655a"
 
 [pkg.llvm-tools-preview.target.armv7-unknown-linux-musleabihf]
 available = false
@@ -615,75 +615,75 @@ available = false
 
 [pkg.llvm-tools-preview.target.i686-apple-darwin]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-i686-apple-darwin.tar.gz"
-hash = "de62a3fd5eea9b60be357374b9fe3bb24e83122dcc1c4b81dac50b854d97a0be"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-i686-apple-darwin.tar.xz"
-xz_hash = "f2e3ea966a9a8391208fd5e8fb1b454eb420823420f4e3f68a7b10f5a345d809"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-i686-apple-darwin.tar.gz"
+hash = "14fd8a949f86c5480956ee3ab695abf677465dd1e729ef00d4185ee46a008204"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-i686-apple-darwin.tar.xz"
+xz_hash = "e2ff3963a8dae23e2831696a0a64f52401701c833eda0a500a79e0a21ed3dd06"
 
 [pkg.llvm-tools-preview.target.i686-linux-android]
 available = false
 
 [pkg.llvm-tools-preview.target.i686-pc-windows-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-i686-pc-windows-gnu.tar.gz"
-hash = "e09247e5c264d1b1857b54a54bc1a5354ba7be0526434ced59b339f32f505ccd"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-i686-pc-windows-gnu.tar.xz"
-xz_hash = "cd019e3265476baf22d61d4f7a14c7fc66cccd23efe46af79e519159191e1f62"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-i686-pc-windows-gnu.tar.gz"
+hash = "a8a712d6da7326df97c0f65de94599313b2b380f15e67a1cd1cef9a5ec62fa83"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-i686-pc-windows-gnu.tar.xz"
+xz_hash = "1b23ad6daf1c9409924d1365479afe225dda3ee0763bb8f0166b0b2dda54bfda"
 
 [pkg.llvm-tools-preview.target.i686-pc-windows-msvc]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-i686-pc-windows-msvc.tar.gz"
-hash = "e3e9f0652bf9e5577babe6ec1fef353457fdd1eca1ec93f7addd02ae1232cd04"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-i686-pc-windows-msvc.tar.xz"
-xz_hash = "9408ad52f022357bcd5f33ab8687190598c386a33e74f6d9169aa07ba087dafb"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-i686-pc-windows-msvc.tar.gz"
+hash = "554b9e9879e951cf7bc3682017bd98c6eaa13620088d3d3ec4192fe4cb33425a"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-i686-pc-windows-msvc.tar.xz"
+xz_hash = "90586dd438a440033525544222fa9f2b86cfb787116e3b30e19733f1c7fd509b"
 
 [pkg.llvm-tools-preview.target.i686-unknown-freebsd]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-i686-unknown-freebsd.tar.gz"
-hash = "2f410816a25f41a72875eddc4f554871069e6a0235fcdb050267cd8675af2fa7"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-i686-unknown-freebsd.tar.xz"
-xz_hash = "36c2edd61a79756415171f242a9a1d563de12fa7edb88cff4f32f6787be674c8"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-i686-unknown-freebsd.tar.gz"
+hash = "5a924369dc8bf0757a98eb95173bde50ab517f7bc42d6fdf3942158364be10b1"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-i686-unknown-freebsd.tar.xz"
+xz_hash = "e617fa48417f647ec0a7f64eddfc5c0b6cfe0fa53c08212f683436b849bbae42"
 
 [pkg.llvm-tools-preview.target.i686-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-i686-unknown-linux-gnu.tar.gz"
-hash = "45da74253fea3a2a31cee40d415b215e0eef321706ebe7914198a7719cf40268"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-i686-unknown-linux-gnu.tar.xz"
-xz_hash = "e9bddbf195c5b411005bcc4ac81a2a34bb909a279cff8998fa05ea0983ac3aff"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-i686-unknown-linux-gnu.tar.gz"
+hash = "f82be5a9a10528b62f5e177b01bd32b278661021a55dc0fceedcf03b051dce96"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-i686-unknown-linux-gnu.tar.xz"
+xz_hash = "ee5e28ab7e81f63f92ed2101c1110366793b191ced2b08328ecab1f3c7257451"
 
 [pkg.llvm-tools-preview.target.i686-unknown-linux-musl]
 available = false
 
 [pkg.llvm-tools-preview.target.mips-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-mips-unknown-linux-gnu.tar.gz"
-hash = "84f166579cd311c9426f46b0c8d2d0be60e534b6b44b305a4697abeaba08ae24"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-mips-unknown-linux-gnu.tar.xz"
-xz_hash = "2670521a96721cec60a23b3e2b6935ebbca1bc49355cb73db7e2ec050957441f"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-mips-unknown-linux-gnu.tar.gz"
+hash = "29a0f74fea53a9595d28d985712733352fcff534e8c0ec9ddd105ef5914d2fec"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-mips-unknown-linux-gnu.tar.xz"
+xz_hash = "6626b49f9d6f532b2b1d2f359d369c6e31b8ecaa7b52667a70d77198aa51c492"
 
 [pkg.llvm-tools-preview.target.mips-unknown-linux-musl]
 available = false
 
 [pkg.llvm-tools-preview.target.mips64-unknown-linux-gnuabi64]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-mips64-unknown-linux-gnuabi64.tar.gz"
-hash = "7cc5b65e638d05ff53ca8257d8e7d7b3ab694b748e48ba08e0a44f2f86f82a0a"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-mips64-unknown-linux-gnuabi64.tar.xz"
-xz_hash = "040e260b0db2ecf5ae3e905e46dd1960649d0209eebde41c0b69c2b8ea5fd80b"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-mips64-unknown-linux-gnuabi64.tar.gz"
+hash = "d09e9a54f14cd21f5c500e963e083dfb9d5ad3193065aaf089226b249c80b412"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-mips64-unknown-linux-gnuabi64.tar.xz"
+xz_hash = "80e67453b229e8ae21aebe3ab2e6c59e80ff98bfff77cae0ba0edd48ffe251b1"
 
 [pkg.llvm-tools-preview.target.mips64el-unknown-linux-gnuabi64]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-mips64el-unknown-linux-gnuabi64.tar.gz"
-hash = "b2f25995afeee0a681655d3ac597f8b090bb4be253aafa35c3a11b9d66a7a5d8"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-mips64el-unknown-linux-gnuabi64.tar.xz"
-xz_hash = "e0ff99721a0c3dd55f39eb22145fc42f4f9108b4cf01f95af9fba3e3aaaed337"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-mips64el-unknown-linux-gnuabi64.tar.gz"
+hash = "6c564dc8c19a36fe1c453e3df173ecad5fbb1e565f945e3c79256af5162f1308"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-mips64el-unknown-linux-gnuabi64.tar.xz"
+xz_hash = "daf35669306c976d4f6a5743df4dad56a2976f7423a45bad12861e7ec4e6701a"
 
 [pkg.llvm-tools-preview.target.mipsel-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-mipsel-unknown-linux-gnu.tar.gz"
-hash = "05c32418fc77bf92b4c7734eee19b31b71e7bd5d6c333446a176c51cfc774175"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-mipsel-unknown-linux-gnu.tar.xz"
-xz_hash = "6176167894772e3aac63ca1d74779758a509088f2274703d74db7f7fd7c22532"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-mipsel-unknown-linux-gnu.tar.gz"
+hash = "9fd4ca8c632c058105fa8145b0c3be669b081f737e46b9a20ddea0c8020bbad7"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-mipsel-unknown-linux-gnu.tar.xz"
+xz_hash = "fd75e95e3102fff506b770f7e5959f048b36ed2f4bb292fa0c9a2c8525fd7ffb"
 
 [pkg.llvm-tools-preview.target.mipsel-unknown-linux-musl]
 available = false
@@ -705,24 +705,24 @@ available = false
 
 [pkg.llvm-tools-preview.target.powerpc-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-powerpc-unknown-linux-gnu.tar.gz"
-hash = "7ec4201e82dc52dc806d5a2ff04f1d1f0fbd4f6e13b888a1c7bc0ce221496660"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-powerpc-unknown-linux-gnu.tar.xz"
-xz_hash = "010f919e0921a43b180df49c4971d307cb5c3a7a86c4627102f4b5729cb958d9"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-powerpc-unknown-linux-gnu.tar.gz"
+hash = "30cda0bb00d99b05573551c52cef93f688dbc00338e26887be5cde1764578d98"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-powerpc-unknown-linux-gnu.tar.xz"
+xz_hash = "1019f68a48692acaec48519b5d48395ab2d9561160dfb4590512e3a90f88fd4d"
 
 [pkg.llvm-tools-preview.target.powerpc64-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-powerpc64-unknown-linux-gnu.tar.gz"
-hash = "d4503e6d3bcde857c50858a46fd726b900c11f19dcc1f680c6390e3ca47547eb"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-powerpc64-unknown-linux-gnu.tar.xz"
-xz_hash = "4b97daf7478c92805f3df4e8415f99973957643e093588e6f137328882b62493"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-powerpc64-unknown-linux-gnu.tar.gz"
+hash = "093fcd1dcfbdc6cad105fa202606300cabacc1f0c3189ffe95ad57ac728c4096"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-powerpc64-unknown-linux-gnu.tar.xz"
+xz_hash = "136e1437df809a0827e4c59fbf47c9e87bab6875149e0041b5c9a3f9eb3be1f9"
 
 [pkg.llvm-tools-preview.target.powerpc64le-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-powerpc64le-unknown-linux-gnu.tar.gz"
-hash = "e19a3ccd07e0526d162147e7e3c836f30f433cff1d4818a53c0d7b405513fc4f"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-powerpc64le-unknown-linux-gnu.tar.xz"
-xz_hash = "694c4364927f833f1a7e51a20ed8688447a533165196b14286b048e7da50fff6"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-powerpc64le-unknown-linux-gnu.tar.gz"
+hash = "f591f567c6759256ac98e5387673b18d4df0b95825213cd4bcd23d518af91b62"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-powerpc64le-unknown-linux-gnu.tar.xz"
+xz_hash = "bd123c09ea49eee467c34a29db0826d55678677ef3ad16ef79e5655e2f4d6748"
 
 [pkg.llvm-tools-preview.target.riscv32imac-unknown-none-elf]
 available = false
@@ -738,10 +738,10 @@ available = false
 
 [pkg.llvm-tools-preview.target.s390x-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-s390x-unknown-linux-gnu.tar.gz"
-hash = "ce5528b2fc24d5dcb461eb1f9b06c3af99905e2a38675c2772db63559dc06079"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-s390x-unknown-linux-gnu.tar.xz"
-xz_hash = "3872812ba0751a11db51643c0d131ce33720d252b50108387ef0a5217e06ac8e"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-s390x-unknown-linux-gnu.tar.gz"
+hash = "f6fbcd6568fe61e4607a6c2b3532e4653e41350aee8d346f25557ab7ff6c8db1"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-s390x-unknown-linux-gnu.tar.xz"
+xz_hash = "db5e8fd67617e268a94d227a1797996001b83ebb45e73eecd64bc826a94738c0"
 
 [pkg.llvm-tools-preview.target.sparc64-unknown-linux-gnu]
 available = false
@@ -778,10 +778,10 @@ available = false
 
 [pkg.llvm-tools-preview.target.x86_64-apple-darwin]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-x86_64-apple-darwin.tar.gz"
-hash = "dda40ece5b0f47622296ac12a3fb1254547c799ddf0d085f60410ab76c634cff"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-x86_64-apple-darwin.tar.xz"
-xz_hash = "2d4e5468af89d250d4062e615c49ddf5c0ec88a4bbdf412edb8b3f6867d2540d"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-x86_64-apple-darwin.tar.gz"
+hash = "f5c088ed1f80f3f99b586e70aa4726c2680ad19c560b16aeeb9c47f8d0087c71"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-x86_64-apple-darwin.tar.xz"
+xz_hash = "659cef694ff85c0fed4dab12734531226b5b5035f1943b22124da15b9e898bb3"
 
 [pkg.llvm-tools-preview.target.x86_64-apple-ios]
 available = false
@@ -797,17 +797,17 @@ available = false
 
 [pkg.llvm-tools-preview.target.x86_64-pc-windows-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-x86_64-pc-windows-gnu.tar.gz"
-hash = "ef848d4f0cea0b07808bf33da6fc6ab8750268789d76f5887f906c914c6232a4"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-x86_64-pc-windows-gnu.tar.xz"
-xz_hash = "de0215d3cd99d8ba81e6fb1cc588a8371261062d1ed96717618debb0c7b92ec9"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-x86_64-pc-windows-gnu.tar.gz"
+hash = "5d2d5d82e7a1a20d9494af5025324d21f71fde3c46a8642bbc24ad81dd67a113"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-x86_64-pc-windows-gnu.tar.xz"
+xz_hash = "56f2ecb75ac3874a6dea25a1366afaaf1dad783b5eb6b7765facef69c7279c52"
 
 [pkg.llvm-tools-preview.target.x86_64-pc-windows-msvc]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-x86_64-pc-windows-msvc.tar.gz"
-hash = "0af4ea2699519d77022dd475744774c6b13eef9e89453d75a4111f7441907663"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-x86_64-pc-windows-msvc.tar.xz"
-xz_hash = "c3446035f10d0c13a2d1661249b1552422a36ec1117030b6fe5bffd65900f1f4"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-x86_64-pc-windows-msvc.tar.gz"
+hash = "329e7b173325ab03e1de4454278accebff1776bcfab701fde9822fd579a700a0"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-x86_64-pc-windows-msvc.tar.xz"
+xz_hash = "011628a26c7baa1394212e350ee40526811f28e4cb6daf700797d25819e315c5"
 
 [pkg.llvm-tools-preview.target.x86_64-rumprun-netbsd]
 available = false
@@ -820,212 +820,212 @@ available = false
 
 [pkg.llvm-tools-preview.target.x86_64-unknown-freebsd]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-x86_64-unknown-freebsd.tar.gz"
-hash = "23dbabdf40da3d6bc65677a8a0009acdc1a35d8e75b051f79502056aa37c3832"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-x86_64-unknown-freebsd.tar.xz"
-xz_hash = "230333fedfb3fda6ddbc10c3700cc40b6a01d48785b634768c13f030cd85a4f7"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-x86_64-unknown-freebsd.tar.gz"
+hash = "e8972d1871aded6bb0cefeab05f6babb177b77cb0dce6fffb7dbf167069c1967"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-x86_64-unknown-freebsd.tar.xz"
+xz_hash = "78051da10ea1ddb494698544f23779596693d463a07dcaa16dfba20a3c63202e"
 
 [pkg.llvm-tools-preview.target.x86_64-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-x86_64-unknown-linux-gnu.tar.gz"
-hash = "30083db9006386c5f586a4f33223475ed9b2c49e19f024b1b932757b1aafd0ef"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-x86_64-unknown-linux-gnu.tar.xz"
-xz_hash = "69eae781cd2f11a864675e9f7ed8720070cdec197295a032b471ac4e53982ce4"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-x86_64-unknown-linux-gnu.tar.gz"
+hash = "4629897edf11d71f658be528ea9f7a2b32d704cb22833d88f9431988cd434615"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-x86_64-unknown-linux-gnu.tar.xz"
+xz_hash = "41d6ad8362f59e70d9eac400015b2a9c31b54df14e005c849e2df015deb6bc27"
 
 [pkg.llvm-tools-preview.target.x86_64-unknown-linux-gnux32]
 available = false
 
 [pkg.llvm-tools-preview.target.x86_64-unknown-linux-musl]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-x86_64-unknown-linux-musl.tar.gz"
-hash = "f74c735858a86956c37e20519ad7a8af6df38f3d5a80c52f143061df19db3019"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-x86_64-unknown-linux-musl.tar.xz"
-xz_hash = "d708efc0dbcb16ed2684c303d013f0131434333b1c65a8471e0912460599ee1a"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-x86_64-unknown-linux-musl.tar.gz"
+hash = "7a0f1a7656a2deb5bbb72c7e97eb5621c127d787c81ff8e0babf1d0f29985447"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-x86_64-unknown-linux-musl.tar.xz"
+xz_hash = "ddc2097e7b11c0a36901a89463ce6896783a5e04b0ca6529e1f8903d2b2586b8"
 
 [pkg.llvm-tools-preview.target.x86_64-unknown-netbsd]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-x86_64-unknown-netbsd.tar.gz"
-hash = "0dd64e0bbe43ce93ff9364a7467545a76bfbe61295fb0d251b72f0f5e18bfc28"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/llvm-tools-nightly-x86_64-unknown-netbsd.tar.xz"
-xz_hash = "8a2eac8bee2f7cbf8aa2f9abc53ee74639c0b96867f5a61acff9e16911f35a82"
+url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-x86_64-unknown-netbsd.tar.gz"
+hash = "fa632f910d71df6f3b499333e354fb805f5e2e0d60fa73b32eb017b3ca5aaf42"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/llvm-tools-nightly-x86_64-unknown-netbsd.tar.xz"
+xz_hash = "13d9780fc647fbf4077fb95669f86503862ccfc926efbc950f1742af029cc37f"
 
 [pkg.llvm-tools-preview.target.x86_64-unknown-redox]
 available = false
 
-[pkg.miri]
+[pkg.miri-preview]
 version = "0.1.0-nightly (72b4ee038 2019-03-11)"
-[pkg.miri.target.aarch64-unknown-linux-gnu]
+[pkg.miri-preview.target.aarch64-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-aarch64-unknown-linux-gnu.tar.gz"
-hash = "9f1ebbff9874c795397497e06c801566365bbe08ca12e24a598280ef9718d1cc"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-aarch64-unknown-linux-gnu.tar.xz"
-xz_hash = "0cdd0c9e24dec89cb43c6f4b2a7b3ef3cbad6e5c58c963a89af111b502f9fc08"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-aarch64-unknown-linux-gnu.tar.gz"
+hash = "314e137f108c9c458576b811038e58367e1ebc54dc5b0d0753b4efb8f75e5cc7"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-aarch64-unknown-linux-gnu.tar.xz"
+xz_hash = "1dbc780b017097046b97e82792700b1832c2818a6ecd9ad2a1e7faf796929515"
 
-[pkg.miri.target.arm-unknown-linux-gnueabi]
+[pkg.miri-preview.target.arm-unknown-linux-gnueabi]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-arm-unknown-linux-gnueabi.tar.gz"
-hash = "85aae1b45eca83d8ea264db85ac1af7b719b94abd459739d113825de09f145e8"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-arm-unknown-linux-gnueabi.tar.xz"
-xz_hash = "d7fe4720a3d433314a389044e865711d1f952d6df9bb02cc361bbf79010c7be3"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-arm-unknown-linux-gnueabi.tar.gz"
+hash = "bb4de8170b31c4f26e10280028f8952b032b715bde2f2325bb3b98c6cd5f25db"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-arm-unknown-linux-gnueabi.tar.xz"
+xz_hash = "b68353ddc1ca5d9a4d491411da52c6e6bd3d1bb4a1fbe2123cb95fa33a9cec29"
 
-[pkg.miri.target.arm-unknown-linux-gnueabihf]
+[pkg.miri-preview.target.arm-unknown-linux-gnueabihf]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-arm-unknown-linux-gnueabihf.tar.gz"
-hash = "586474dee00387c4a206132e82fbfa30f0ee00d69a8ea671425dede86ce4fb1c"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-arm-unknown-linux-gnueabihf.tar.xz"
-xz_hash = "ca6919dcdd35ab83c247a43293535f8526d3b1c719f97c17e4811da6f3175ee2"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-arm-unknown-linux-gnueabihf.tar.gz"
+hash = "1e24f0113bce0e227268bc4f465c3cd4a4060de18acc05d50c4154d482ae343e"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-arm-unknown-linux-gnueabihf.tar.xz"
+xz_hash = "98df28423612ef0f0f563fe722ed31d65d3ed981ad96b1844fea42139b7d4998"
 
-[pkg.miri.target.armv7-unknown-linux-gnueabihf]
+[pkg.miri-preview.target.armv7-unknown-linux-gnueabihf]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-armv7-unknown-linux-gnueabihf.tar.gz"
-hash = "9e9ecad4e6640cb8094c43eb71ea3eaabcab2ebf2e69da5bc3fdec03bc5d1caf"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-armv7-unknown-linux-gnueabihf.tar.xz"
-xz_hash = "46a3499d7f3063fc94bbb2ee6338f0ad04ca630f92596bc03364bb4e4f75a732"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-armv7-unknown-linux-gnueabihf.tar.gz"
+hash = "72764ee6e53902c3e5a894322fe5e5819cfbb6af74901880bcd556074691dfc4"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-armv7-unknown-linux-gnueabihf.tar.xz"
+xz_hash = "195c62c3e77ad907eb0dd86de043550fa99e9e28076c7664fb118e568c3d6fe7"
 
-[pkg.miri.target.i686-apple-darwin]
+[pkg.miri-preview.target.i686-apple-darwin]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-i686-apple-darwin.tar.gz"
-hash = "0c72cfc968b433bdcf1ddc9007be5d5a7b0bcb454240f33e0c55b0018e7ea4f7"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-i686-apple-darwin.tar.xz"
-xz_hash = "19fbf45a0b84153bcdc98ac3e4a70f07ab36b33c06a2e9141d4639bafee29374"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-i686-apple-darwin.tar.gz"
+hash = "153fbbe715e5308bda27cdf50cd93ef018668cc753611ad42e45f9dda19d813d"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-i686-apple-darwin.tar.xz"
+xz_hash = "bc81e1a80ad009acae7274ee8b2687d7a50409cb46acb2be9f984b83a7f5661b"
 
-[pkg.miri.target.i686-pc-windows-gnu]
+[pkg.miri-preview.target.i686-pc-windows-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-i686-pc-windows-gnu.tar.gz"
-hash = "a267dba47f53359e6eb74d253a21ba652bca75e0fff5cf367578a9a99311d7f6"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-i686-pc-windows-gnu.tar.xz"
-xz_hash = "367c224d6bb8edc3e001510745a73c92faafc288c6b338664a60a4807e6ff24d"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-i686-pc-windows-gnu.tar.gz"
+hash = "2a7c839a6d074ab9d1c7b278dccbaf7046aeb9c341d4ce49bf6e57a2e4a36732"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-i686-pc-windows-gnu.tar.xz"
+xz_hash = "938fbf06210505ab9473cd6b6f7d801d1a7316be8a915cfe2d5d7570a98d7069"
 
-[pkg.miri.target.i686-pc-windows-msvc]
+[pkg.miri-preview.target.i686-pc-windows-msvc]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-i686-pc-windows-msvc.tar.gz"
-hash = "9e2645b07145c9b6d21cf41fe6deeaa461963f4a72ab19de1a2c64391284a85f"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-i686-pc-windows-msvc.tar.xz"
-xz_hash = "5fd5f273cdd97677b47c8345ba66272c313f1ffeaf7e2dd1e369f0e170cc3862"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-i686-pc-windows-msvc.tar.gz"
+hash = "de8a55b0d53e1dc60c7e8dcb9a8798edd5363cfad7410355373016cd3b6c2e25"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-i686-pc-windows-msvc.tar.xz"
+xz_hash = "12a8a4478da661012a65e34cdde16b456c8842d8dbf4c473491c6f16f6d5f083"
 
-[pkg.miri.target.i686-unknown-linux-gnu]
+[pkg.miri-preview.target.i686-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-i686-unknown-linux-gnu.tar.gz"
-hash = "7e2674a6f997534e93c4785ab366adbfaed670ee8bdb0ab78af2feaefc2f7a1f"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-i686-unknown-linux-gnu.tar.xz"
-xz_hash = "0efbf3d99f74488eaedc09f7efff3c73fec3c8d47992c39151419a4f4008b1ce"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-i686-unknown-linux-gnu.tar.gz"
+hash = "4d7bdfc1665a314d8baf3e22da07c8840e3b5fd48115dcc424cd82450913faed"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-i686-unknown-linux-gnu.tar.xz"
+xz_hash = "22f1835e2eaf28e1dea5d43dbcfe447a0cda3c8ec8c995373ad05dc7c6660cae"
 
-[pkg.miri.target.mips-unknown-linux-gnu]
+[pkg.miri-preview.target.mips-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-mips-unknown-linux-gnu.tar.gz"
-hash = "98ac975e254e3e61abb4f85b75d41c6f5e4651f32a483b3b83a2046cfbe27ecc"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-mips-unknown-linux-gnu.tar.xz"
-xz_hash = "2003f5a8551fb5f82dcf72829472439ac33a369842a62bbc0eb24e193a19051c"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-mips-unknown-linux-gnu.tar.gz"
+hash = "1b27b4565924727cc2cc4653d603dd49424f626972827db588ad9b99f1505d0e"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-mips-unknown-linux-gnu.tar.xz"
+xz_hash = "a7ce14dfd6c92bb556965def17453d307b27b521c959e3d37bbdd4bfe8b8a022"
 
-[pkg.miri.target.mips64-unknown-linux-gnuabi64]
+[pkg.miri-preview.target.mips64-unknown-linux-gnuabi64]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-mips64-unknown-linux-gnuabi64.tar.gz"
-hash = "a36f574bfc3bf227b674860c67b8668e72b6beab1087fd0f6504636d402df482"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-mips64-unknown-linux-gnuabi64.tar.xz"
-xz_hash = "c950c484859aff8f504df75085d5847c82b3597fe1905441dbba0bf99dcafd77"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-mips64-unknown-linux-gnuabi64.tar.gz"
+hash = "47441c60e2bced412a0fd1653a1f29dc7e88353a90f1c9f382e38f4a0bf5a6c1"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-mips64-unknown-linux-gnuabi64.tar.xz"
+xz_hash = "d59f31e20778ba6ac0587b910ecae33515e942d7ce33ac77fb9042de42fe98b0"
 
-[pkg.miri.target.mips64el-unknown-linux-gnuabi64]
+[pkg.miri-preview.target.mips64el-unknown-linux-gnuabi64]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-mips64el-unknown-linux-gnuabi64.tar.gz"
-hash = "92c812fbebc3beebb46a3a37ab61f4e036d6ec1fa6cf230d0c2377dc251a4b15"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-mips64el-unknown-linux-gnuabi64.tar.xz"
-xz_hash = "fcbf2f0c582542b2526a84bba811d6ce4c9caf91c3c199c3a099ba7c1bde1e2f"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-mips64el-unknown-linux-gnuabi64.tar.gz"
+hash = "54f62cb270292da08453c5e2c0210c163d2d68266328fa86e28afcca9d093720"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-mips64el-unknown-linux-gnuabi64.tar.xz"
+xz_hash = "9f6f3686dbaecd31e36ea9d062ee80b240a74564f8fc3f414af228eb6a9e407d"
 
-[pkg.miri.target.mipsel-unknown-linux-gnu]
+[pkg.miri-preview.target.mipsel-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-mipsel-unknown-linux-gnu.tar.gz"
-hash = "f7f62efa6c7213b10408d27e3824b50b7abb51fb9a48b70eadbfd7df20884e63"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-mipsel-unknown-linux-gnu.tar.xz"
-xz_hash = "86362478b0b4848bf47ef6eecfcc1a0d70cd9a628232eda56f0eb1d00a1aa203"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-mipsel-unknown-linux-gnu.tar.gz"
+hash = "73f32ff009f5457ae672bebd2091bc1cc8b1093e836db43d745354de3683ffca"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-mipsel-unknown-linux-gnu.tar.xz"
+xz_hash = "cd95eaa9a4629495e34fae38535bdd595b82a5800b43529bfc0fe9c2a22a304c"
 
-[pkg.miri.target.mipsisa32r6-unknown-linux-gnu]
+[pkg.miri-preview.target.mipsisa32r6-unknown-linux-gnu]
 available = false
 
-[pkg.miri.target.mipsisa32r6el-unknown-linux-gnu]
+[pkg.miri-preview.target.mipsisa32r6el-unknown-linux-gnu]
 available = false
 
-[pkg.miri.target.mipsisa64r6-unknown-linux-gnuabi64]
+[pkg.miri-preview.target.mipsisa64r6-unknown-linux-gnuabi64]
 available = false
 
-[pkg.miri.target.mipsisa64r6el-unknown-linux-gnuabi64]
+[pkg.miri-preview.target.mipsisa64r6el-unknown-linux-gnuabi64]
 available = false
 
-[pkg.miri.target.powerpc-unknown-linux-gnu]
+[pkg.miri-preview.target.powerpc-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-powerpc-unknown-linux-gnu.tar.gz"
-hash = "83c66e96fbc096908f67cf1e57047146455c6dcbecfdac2e8e32850ecd6d855e"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-powerpc-unknown-linux-gnu.tar.xz"
-xz_hash = "45ae2ddea9c39ec93951f47cd1e4fe1be6c8c5eec599934dd994ae9d78d60d28"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-powerpc-unknown-linux-gnu.tar.gz"
+hash = "38919d2b0929025c9fe39ce05d2d8a1a5136755ba432e466948102ef93e3ad10"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-powerpc-unknown-linux-gnu.tar.xz"
+xz_hash = "5193c63c1f19f4733da38c696ed133722568f4bf9cc80dc67045dcb4cb739d50"
 
-[pkg.miri.target.powerpc64-unknown-linux-gnu]
+[pkg.miri-preview.target.powerpc64-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-powerpc64-unknown-linux-gnu.tar.gz"
-hash = "8adaa8283cac03a2855426e693d1cef845957db130dffe3987c89b7cf4cac89b"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-powerpc64-unknown-linux-gnu.tar.xz"
-xz_hash = "d37cc324dfaa837a7b760f8f1a3f35113342e105d88795b301eb3e950c486efc"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-powerpc64-unknown-linux-gnu.tar.gz"
+hash = "c5e3c86ce36a45b5f432c9ca14f2ff2a52006b9936afa9c964c226a1f1f84bd2"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-powerpc64-unknown-linux-gnu.tar.xz"
+xz_hash = "4d80528032335924d3e6c6e4ad1907336a19e9efa72c47d824b129ca7c7a7769"
 
-[pkg.miri.target.powerpc64le-unknown-linux-gnu]
+[pkg.miri-preview.target.powerpc64le-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-powerpc64le-unknown-linux-gnu.tar.gz"
-hash = "5aaaa68497cb787aded1e01e917c6097e765d428f9d775f628145cca2f2e8a7d"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-powerpc64le-unknown-linux-gnu.tar.xz"
-xz_hash = "8a58a7fd211970b39447141022fa7117834018327e042cfe87f693670e85691a"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-powerpc64le-unknown-linux-gnu.tar.gz"
+hash = "9920c81167b7b2832655105fe82b746a221662feb7ec84e817a696a7e882fd84"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-powerpc64le-unknown-linux-gnu.tar.xz"
+xz_hash = "985cd41d4faa606badd5b3276ebc7398a98cb105734fec8d4f057a74b6d0517a"
 
-[pkg.miri.target.s390x-unknown-linux-gnu]
+[pkg.miri-preview.target.s390x-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-s390x-unknown-linux-gnu.tar.gz"
-hash = "c0d583a2ec73f784ef163d93b967735a2dfd2ca30bea7f84401577b152305257"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-s390x-unknown-linux-gnu.tar.xz"
-xz_hash = "646d3dc0c807256fcb9b95fdaf3e654e7068ef08b2940b62be59c504193b0a4f"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-s390x-unknown-linux-gnu.tar.gz"
+hash = "104ba79f3f53af72a3406fda503c3ec1947f5dfbbf30da19495dd140215b294b"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-s390x-unknown-linux-gnu.tar.xz"
+xz_hash = "5fd1430c178cf37fbe4cae43fceba22fe4ae9f9e76194e312017278d5a009f55"
 
-[pkg.miri.target.x86_64-apple-darwin]
+[pkg.miri-preview.target.x86_64-apple-darwin]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-x86_64-apple-darwin.tar.gz"
-hash = "ce97c691cbd6b1565bd26ab7f61e0d32ba561ea4e9265c4667eabfd6e7fde61a"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-x86_64-apple-darwin.tar.xz"
-xz_hash = "e71a10c88b8b5ed59f90d9e1f6ab4fbb9f47743ccbdff826a0a3da10b7d86116"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-x86_64-apple-darwin.tar.gz"
+hash = "fd9e3fde16cc9cfdea38bf0593aef42f0a31e7eedf0235912ec163a1aa35174f"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-x86_64-apple-darwin.tar.xz"
+xz_hash = "0cd499af1553a9bc6a10a13bb759d95b168a7dc62c4cc01e58a5f2156f5fa081"
 
-[pkg.miri.target.x86_64-pc-windows-gnu]
+[pkg.miri-preview.target.x86_64-pc-windows-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-x86_64-pc-windows-gnu.tar.gz"
-hash = "06873d9a0b8f42d4d285c6876013c1d433c5bfb258aa75b14b22a9258f692703"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-x86_64-pc-windows-gnu.tar.xz"
-xz_hash = "0aa6892445525079a57231a4320fd92f350a6f142ab85ee83cd9cf2c275fd3c5"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-x86_64-pc-windows-gnu.tar.gz"
+hash = "b4206a98554c83ebafc24c917a5c029eddb05566c28d0631f76949cabf01e702"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-x86_64-pc-windows-gnu.tar.xz"
+xz_hash = "bdb91efb550d47f0802d5529d39d0a142de7e9a55067eb4fdc7341f2f6ffa03e"
 
-[pkg.miri.target.x86_64-pc-windows-msvc]
+[pkg.miri-preview.target.x86_64-pc-windows-msvc]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-x86_64-pc-windows-msvc.tar.gz"
-hash = "97569ef22096b79fd172628f57777149a79200701cadeee11befaec398976e48"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-x86_64-pc-windows-msvc.tar.xz"
-xz_hash = "f9ed5f4601d5a9faa9f3b068c5d19dc4f0eefcb19cf269065f0bb62e3c32b7d4"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-x86_64-pc-windows-msvc.tar.gz"
+hash = "bab5f331c89edf4f393c6491244479b1013f40552a63aa9cdfe2994b3d03c192"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-x86_64-pc-windows-msvc.tar.xz"
+xz_hash = "d479be42f7763c871d88906fb410ff31239158c9814a50949720678f59e8273d"
 
-[pkg.miri.target.x86_64-unknown-freebsd]
+[pkg.miri-preview.target.x86_64-unknown-freebsd]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-x86_64-unknown-freebsd.tar.gz"
-hash = "8213bc17ee2de23b3ade5e49361e86fbdba8f151f491466e44df1d3206e38924"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-x86_64-unknown-freebsd.tar.xz"
-xz_hash = "77581827c2a705d35336e056e1623b40ce9960d9b7fe4f5dc9302ea65e192fc0"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-x86_64-unknown-freebsd.tar.gz"
+hash = "3dfb366d9fac85d7edf02c3e26767ddd9f264ad25d4a0b24fb18c116c9458893"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-x86_64-unknown-freebsd.tar.xz"
+xz_hash = "04b36126d64db2c554650404af52199a7127b77c0ec1f3bafcb1355b286f157d"
 
-[pkg.miri.target.x86_64-unknown-linux-gnu]
+[pkg.miri-preview.target.x86_64-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-x86_64-unknown-linux-gnu.tar.gz"
-hash = "a665f76e434a1cbb32c21eb387a406b4f6b5f75e93c799b7bf0af25745d5f4e6"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-x86_64-unknown-linux-gnu.tar.xz"
-xz_hash = "239a917c3925fe6f323c36a71fb5c08e93c64132ea40c1547312b23344d4a30d"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-x86_64-unknown-linux-gnu.tar.gz"
+hash = "f4c0aa5fdbc3f82a5ca431212cd6085eb71eb3d99e83b47418b82273dbc146c6"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-x86_64-unknown-linux-gnu.tar.xz"
+xz_hash = "28fed758383e58f36427449a1f6397b196717ecfc04859ef0611e41dcd971df7"
 
-[pkg.miri.target.x86_64-unknown-linux-musl]
+[pkg.miri-preview.target.x86_64-unknown-linux-musl]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-x86_64-unknown-linux-musl.tar.gz"
-hash = "59355ba2b80a49d08a7202fba6412172c097d8bd68f4ceae8ecc552c252cae24"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-x86_64-unknown-linux-musl.tar.xz"
-xz_hash = "3cee049a161498cd6f36e77446b98e74195e49f5d2c98eb0162fcb152bf85e4a"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-x86_64-unknown-linux-musl.tar.gz"
+hash = "efd315fc0a3aa9a9c967579872dbd83db77b8da1437d04a968693f5352182d3b"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-x86_64-unknown-linux-musl.tar.xz"
+xz_hash = "32b2b608167e9a047dfd874ca447de7f7a6d954d36de7bd416a050fa909d2dd2"
 
-[pkg.miri.target.x86_64-unknown-netbsd]
+[pkg.miri-preview.target.x86_64-unknown-netbsd]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-x86_64-unknown-netbsd.tar.gz"
-hash = "02d16019ad3dc7fb4b8eb431cd3d02d00e455d3305fe7de8f770a281854910be"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/miri-nightly-x86_64-unknown-netbsd.tar.xz"
-xz_hash = "268941214047f74af5694c47fd34a35c67b5621a9e1a3594b4e3f5fe8852f3ed"
+url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-x86_64-unknown-netbsd.tar.gz"
+hash = "fdeeaea0aaeebecc08c1923bbe2d32acaf8c494cc9da4323fa073331af1bf08d"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/miri-nightly-x86_64-unknown-netbsd.tar.xz"
+xz_hash = "8786eb350a5f4123d25d50b884e44bcf9d44ff795a95256684db05afebe804dc"
 
 [pkg.rls-preview]
 version = ""
@@ -1111,14 +1111,14 @@ available = false
 available = false
 
 [pkg.rust]
-version = "1.35.0-nightly (0f88167f8 2019-03-18)"
-git_commit_hash = "0f88167f89fffe321590c5148f21b7d51d44388d"
+version = "1.35.0-nightly (0633c55d2 2019-03-23)"
+git_commit_hash = "0633c55d2030969d91b57142b8582c53101e6339"
 [pkg.rust.target.aarch64-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-aarch64-unknown-linux-gnu.tar.gz"
-hash = "5fd4fa036d4f105e206bb2d833f777b29c9bbabcea1c6c37d20eb50dd7305b97"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-aarch64-unknown-linux-gnu.tar.xz"
-xz_hash = "c7423ed4fa656b803a27312ef0d94aecbd9b8b76db0273f71c398f2db97a90d0"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-aarch64-unknown-linux-gnu.tar.gz"
+hash = "6842b9c7cdb1fb7ccfed49ad2ae90ea1801582212ffdf1e98a0f1afd653e4840"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-aarch64-unknown-linux-gnu.tar.xz"
+xz_hash = "d72b8201a576e178f121ec4c8fa822bce63e45615b704fe54f7c6adfc1102551"
 
 [[pkg.rust.target.aarch64-unknown-linux-gnu.components]]
 pkg = "rustc"
@@ -1137,7 +1137,7 @@ pkg = "clippy-preview"
 target = "aarch64-unknown-linux-gnu"
 
 [[pkg.rust.target.aarch64-unknown-linux-gnu.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "aarch64-unknown-linux-gnu"
 
 [[pkg.rust.target.aarch64-unknown-linux-gnu.extensions]]
@@ -1486,10 +1486,10 @@ target = "*"
 
 [pkg.rust.target.arm-unknown-linux-gnueabi]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-arm-unknown-linux-gnueabi.tar.gz"
-hash = "80bca4746a2ed563993f31be64f2b790d0766e821ceea9fd6454d888eb5a5ff1"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-arm-unknown-linux-gnueabi.tar.xz"
-xz_hash = "b443764f48d310cee02b47989779b6d772da933ef37cc2d011917b49c2a405dd"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-arm-unknown-linux-gnueabi.tar.gz"
+hash = "6d3ed10eedf50ae81369cc3f73f664bece53faa88efb41aa45b6501ab3bda614"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-arm-unknown-linux-gnueabi.tar.xz"
+xz_hash = "bf8aaa48a1e09db6c1820a4eead4b6ce2a3a8756b873ab1b9aad774cfece39e1"
 
 [[pkg.rust.target.arm-unknown-linux-gnueabi.components]]
 pkg = "rustc"
@@ -1508,7 +1508,7 @@ pkg = "clippy-preview"
 target = "arm-unknown-linux-gnueabi"
 
 [[pkg.rust.target.arm-unknown-linux-gnueabi.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "arm-unknown-linux-gnueabi"
 
 [[pkg.rust.target.arm-unknown-linux-gnueabi.extensions]]
@@ -1857,10 +1857,10 @@ target = "*"
 
 [pkg.rust.target.arm-unknown-linux-gnueabihf]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-arm-unknown-linux-gnueabihf.tar.gz"
-hash = "55df5e2b7e7fea2cadde258c92aa5967893e7f6517e42d85a390c0ea47ff65a3"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-arm-unknown-linux-gnueabihf.tar.xz"
-xz_hash = "058bed62c46d4822c69675c4c35ac83c0609f9be412000a646affd059773b89f"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-arm-unknown-linux-gnueabihf.tar.gz"
+hash = "fe1b23699f2b7c9a09158a7934f67cb90312ac9d5fca8ba3881ff35c8db154f3"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-arm-unknown-linux-gnueabihf.tar.xz"
+xz_hash = "a749b4c9b548b249ffd4f33c7fb35e7e0cdc555d4a30be7ebafb6d4477a4db80"
 
 [[pkg.rust.target.arm-unknown-linux-gnueabihf.components]]
 pkg = "rustc"
@@ -1879,7 +1879,7 @@ pkg = "clippy-preview"
 target = "arm-unknown-linux-gnueabihf"
 
 [[pkg.rust.target.arm-unknown-linux-gnueabihf.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "arm-unknown-linux-gnueabihf"
 
 [[pkg.rust.target.arm-unknown-linux-gnueabihf.extensions]]
@@ -2228,10 +2228,10 @@ target = "*"
 
 [pkg.rust.target.armv7-unknown-linux-gnueabihf]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-armv7-unknown-linux-gnueabihf.tar.gz"
-hash = "7332d7d120c34b08079a8f7aea45fd257946ba0c75ab73c1550c67a879629578"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-armv7-unknown-linux-gnueabihf.tar.xz"
-xz_hash = "1ca546defac83fb3f5b5f273305d013a2f33d8d9180f0aa89fb12d4c6baee1b3"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-armv7-unknown-linux-gnueabihf.tar.gz"
+hash = "09b363fc9959d8432b126f18c441b103eb5aa1c1e5b8aa230cf7977d7f0b21f1"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-armv7-unknown-linux-gnueabihf.tar.xz"
+xz_hash = "7eb4db00fd7c7c6a8b4ce402f1a43e1ab34d72f0301a87a303ad44f033b5580e"
 
 [[pkg.rust.target.armv7-unknown-linux-gnueabihf.components]]
 pkg = "rustc"
@@ -2250,7 +2250,7 @@ pkg = "clippy-preview"
 target = "armv7-unknown-linux-gnueabihf"
 
 [[pkg.rust.target.armv7-unknown-linux-gnueabihf.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "armv7-unknown-linux-gnueabihf"
 
 [[pkg.rust.target.armv7-unknown-linux-gnueabihf.extensions]]
@@ -2599,10 +2599,10 @@ target = "*"
 
 [pkg.rust.target.i686-apple-darwin]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-i686-apple-darwin.tar.gz"
-hash = "66d400989e2136545e12933ac430e09e244c0981f306f33c72248dde51bc93dc"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-i686-apple-darwin.tar.xz"
-xz_hash = "ee1aaf58708df2fb1a938339aa9b03706ab2f4d9731294b9ee58ace62c9f20bc"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-i686-apple-darwin.tar.gz"
+hash = "5e5142b8b2e7991ef5821d59ba3b112663091ef236ba7301a2fbb37c83b761e9"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-i686-apple-darwin.tar.xz"
+xz_hash = "a8ab9b0f2fbd1546d2c292b3060b78983b609c38e534693efc1ddafaf2ceac03"
 
 [[pkg.rust.target.i686-apple-darwin.components]]
 pkg = "rustc"
@@ -2625,7 +2625,7 @@ pkg = "clippy-preview"
 target = "i686-apple-darwin"
 
 [[pkg.rust.target.i686-apple-darwin.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "i686-apple-darwin"
 
 [[pkg.rust.target.i686-apple-darwin.extensions]]
@@ -2974,10 +2974,10 @@ target = "*"
 
 [pkg.rust.target.i686-pc-windows-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-i686-pc-windows-gnu.tar.gz"
-hash = "590d7fbddd9588795fe066a4d9f12f661792c720c98d6ca39648d98004b468b0"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-i686-pc-windows-gnu.tar.xz"
-xz_hash = "23b9cf85028009aafd45deb742ae1f610b56968981ec823ebe817cda231ffc0c"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-i686-pc-windows-gnu.tar.gz"
+hash = "2106730662012cfbb55b4b3226988233501c34b2d688390c2ce0b6728d37bf49"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-i686-pc-windows-gnu.tar.xz"
+xz_hash = "318a4a9fc0fe3c28aad7cceb9f157599a3a7cfc01bf78c77838a5c70a5611dae"
 
 [[pkg.rust.target.i686-pc-windows-gnu.components]]
 pkg = "rustc"
@@ -3004,7 +3004,7 @@ pkg = "clippy-preview"
 target = "i686-pc-windows-gnu"
 
 [[pkg.rust.target.i686-pc-windows-gnu.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "i686-pc-windows-gnu"
 
 [[pkg.rust.target.i686-pc-windows-gnu.extensions]]
@@ -3353,10 +3353,10 @@ target = "*"
 
 [pkg.rust.target.i686-pc-windows-msvc]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-i686-pc-windows-msvc.tar.gz"
-hash = "3ebcb0561d854ba3024f08278c6763ebf50477d559faa69f0f0d410e71f0c53b"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-i686-pc-windows-msvc.tar.xz"
-xz_hash = "cd99594214eb1dae1b168869c4dce968655e2017de1ae999bbe74fc9aff7efa7"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-i686-pc-windows-msvc.tar.gz"
+hash = "318a907423ddd55bc3ae9e87dd88f6ee57314761be25d083fe8235b279f7bc5d"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-i686-pc-windows-msvc.tar.xz"
+xz_hash = "1dd46ef3a2c5a66644902ae6d4f510e0fb3827d5939893791f406f8de5a325f1"
 
 [[pkg.rust.target.i686-pc-windows-msvc.components]]
 pkg = "rustc"
@@ -3379,7 +3379,7 @@ pkg = "clippy-preview"
 target = "i686-pc-windows-msvc"
 
 [[pkg.rust.target.i686-pc-windows-msvc.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "i686-pc-windows-msvc"
 
 [[pkg.rust.target.i686-pc-windows-msvc.extensions]]
@@ -3728,10 +3728,10 @@ target = "*"
 
 [pkg.rust.target.i686-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-i686-unknown-linux-gnu.tar.gz"
-hash = "9a52b907c7e999d90154f284081545d96ab7c11d9bc6a07f4c94873862638884"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-i686-unknown-linux-gnu.tar.xz"
-xz_hash = "812649b0ece57d7d3e6b6ee5aed25b02e04268d5b18c0c1f5590d4e618f479da"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-i686-unknown-linux-gnu.tar.gz"
+hash = "23313efb58a2db5d930e4783fcd09130c4a3ae05e4aee5be14d0b628d359d4cc"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-i686-unknown-linux-gnu.tar.xz"
+xz_hash = "38fc3777ebe450b3ef69018582c3bca7b0f39394f43f9de3bafbb73fe339ca30"
 
 [[pkg.rust.target.i686-unknown-linux-gnu.components]]
 pkg = "rustc"
@@ -3754,7 +3754,7 @@ pkg = "clippy-preview"
 target = "i686-unknown-linux-gnu"
 
 [[pkg.rust.target.i686-unknown-linux-gnu.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "i686-unknown-linux-gnu"
 
 [[pkg.rust.target.i686-unknown-linux-gnu.extensions]]
@@ -4103,10 +4103,10 @@ target = "*"
 
 [pkg.rust.target.mips-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-mips-unknown-linux-gnu.tar.gz"
-hash = "a8cc0bbae76f7238f1fa4aab6f207afb1b8b67f52f8fec20b5adc9405f859d76"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-mips-unknown-linux-gnu.tar.xz"
-xz_hash = "151f46f1ea6ee56e4a432cb1d557664acb26c77940aa9917044e0b43b88b9839"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-mips-unknown-linux-gnu.tar.gz"
+hash = "a3b33d03b5d0b1e293fbe15dd6d4d698cf20f4e488564af4c1f81bc6707ccc0c"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-mips-unknown-linux-gnu.tar.xz"
+xz_hash = "643c282b085b91d922f8d6f29ff579e252e2eb62f0d6abd983ca4f8899beced4"
 
 [[pkg.rust.target.mips-unknown-linux-gnu.components]]
 pkg = "rustc"
@@ -4125,7 +4125,7 @@ pkg = "clippy-preview"
 target = "mips-unknown-linux-gnu"
 
 [[pkg.rust.target.mips-unknown-linux-gnu.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "mips-unknown-linux-gnu"
 
 [[pkg.rust.target.mips-unknown-linux-gnu.extensions]]
@@ -4474,10 +4474,10 @@ target = "*"
 
 [pkg.rust.target.mips64-unknown-linux-gnuabi64]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-mips64-unknown-linux-gnuabi64.tar.gz"
-hash = "bf68a6354d25ba44077475c696e526dfa858d3894c9d16b1e5cd496ae4844904"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-mips64-unknown-linux-gnuabi64.tar.xz"
-xz_hash = "b671733bd9be63c77c86a6093642833660aa3dc27a9387ebbaffe2171eafce2e"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-mips64-unknown-linux-gnuabi64.tar.gz"
+hash = "22ab4e98ee76bbf5b3a4164551bca1558003aab5362faaab6b002adde056a58b"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-mips64-unknown-linux-gnuabi64.tar.xz"
+xz_hash = "b43d21dd7dcd452b8733a19a0eb1fddcd217f23fecb79940d0cdcaec628fe2cc"
 
 [[pkg.rust.target.mips64-unknown-linux-gnuabi64.components]]
 pkg = "rustc"
@@ -4496,7 +4496,7 @@ pkg = "clippy-preview"
 target = "mips64-unknown-linux-gnuabi64"
 
 [[pkg.rust.target.mips64-unknown-linux-gnuabi64.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "mips64-unknown-linux-gnuabi64"
 
 [[pkg.rust.target.mips64-unknown-linux-gnuabi64.extensions]]
@@ -4845,10 +4845,10 @@ target = "*"
 
 [pkg.rust.target.mips64el-unknown-linux-gnuabi64]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-mips64el-unknown-linux-gnuabi64.tar.gz"
-hash = "aa748ebf3ee501ca584a68988fbb970d576b1a2fdaeb1b9a333ecf33ab592c25"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-mips64el-unknown-linux-gnuabi64.tar.xz"
-xz_hash = "a229e6aa87c7cfc29d90ece80aa8ecebec7c4f3ab9fa3fe9238e03afcf5b53e8"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-mips64el-unknown-linux-gnuabi64.tar.gz"
+hash = "b4b69568a2e403c04c2850c48965e9b3279c1765ab21ca12875d98a54ddbd7f3"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-mips64el-unknown-linux-gnuabi64.tar.xz"
+xz_hash = "791dc76ac06823b0f51b7efb1d39b7a087efd2cf70f26e3cb137c5c31e6dbcde"
 
 [[pkg.rust.target.mips64el-unknown-linux-gnuabi64.components]]
 pkg = "rustc"
@@ -4867,7 +4867,7 @@ pkg = "clippy-preview"
 target = "mips64el-unknown-linux-gnuabi64"
 
 [[pkg.rust.target.mips64el-unknown-linux-gnuabi64.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "mips64el-unknown-linux-gnuabi64"
 
 [[pkg.rust.target.mips64el-unknown-linux-gnuabi64.extensions]]
@@ -5216,10 +5216,10 @@ target = "*"
 
 [pkg.rust.target.mipsel-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-mipsel-unknown-linux-gnu.tar.gz"
-hash = "8b6f3f85266de5e4dec470dcf45ce21e3cdfe0316b36ddfa71180a7024eaf111"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-mipsel-unknown-linux-gnu.tar.xz"
-xz_hash = "d437000dd44e35fb3a4eebb03fd1e72ff6e7c81502886f365cd053f359fb0421"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-mipsel-unknown-linux-gnu.tar.gz"
+hash = "d4023d2625ae6a51001ee234658163d564745db525d5fbcef04c284004e780e5"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-mipsel-unknown-linux-gnu.tar.xz"
+xz_hash = "67173dd3f9b904d7f1724a9cc580f4b2c43b05214128c925fad1182ab9519ccf"
 
 [[pkg.rust.target.mipsel-unknown-linux-gnu.components]]
 pkg = "rustc"
@@ -5238,7 +5238,7 @@ pkg = "clippy-preview"
 target = "mipsel-unknown-linux-gnu"
 
 [[pkg.rust.target.mipsel-unknown-linux-gnu.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "mipsel-unknown-linux-gnu"
 
 [[pkg.rust.target.mipsel-unknown-linux-gnu.extensions]]
@@ -5599,10 +5599,10 @@ available = false
 
 [pkg.rust.target.powerpc-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-powerpc-unknown-linux-gnu.tar.gz"
-hash = "8c3cfae9757abf57c0ef54f85c1e9ea46b6fdecc3e5abeeff885a8581b23e3a2"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-powerpc-unknown-linux-gnu.tar.xz"
-xz_hash = "a7161eedd17cb77fd05d0712cae3e8547977ad3d641e2e175bd6a4e1457e0202"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-powerpc-unknown-linux-gnu.tar.gz"
+hash = "ccda2f3a77dc83d4330b3a2078c402886931fa5eb70eade03f15894266a61351"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-powerpc-unknown-linux-gnu.tar.xz"
+xz_hash = "983525bcc19d4184c170fd3eebe91fb8242e2df53a2d42a8bb98f8140c3b5b56"
 
 [[pkg.rust.target.powerpc-unknown-linux-gnu.components]]
 pkg = "rustc"
@@ -5621,7 +5621,7 @@ pkg = "clippy-preview"
 target = "powerpc-unknown-linux-gnu"
 
 [[pkg.rust.target.powerpc-unknown-linux-gnu.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "powerpc-unknown-linux-gnu"
 
 [[pkg.rust.target.powerpc-unknown-linux-gnu.extensions]]
@@ -5970,10 +5970,10 @@ target = "*"
 
 [pkg.rust.target.powerpc64-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-powerpc64-unknown-linux-gnu.tar.gz"
-hash = "ea60d9551eea387e44e0ad4a52a306ccb0e2d35bd7f6fe3d3f9652e43e163668"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-powerpc64-unknown-linux-gnu.tar.xz"
-xz_hash = "905a99c11e58d887f465254f665b9e43804ff170dae15821ba3b5cfe2b9d3af1"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-powerpc64-unknown-linux-gnu.tar.gz"
+hash = "982f29c39189285f08fa27892ad1533db17a451f3dd45ed82bb0a65b6ec06ffe"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-powerpc64-unknown-linux-gnu.tar.xz"
+xz_hash = "8ed6e3d3a40a1b7c0f22e48da3714ca0ecc3a552f5154c10068a3dceae471c22"
 
 [[pkg.rust.target.powerpc64-unknown-linux-gnu.components]]
 pkg = "rustc"
@@ -5992,7 +5992,7 @@ pkg = "clippy-preview"
 target = "powerpc64-unknown-linux-gnu"
 
 [[pkg.rust.target.powerpc64-unknown-linux-gnu.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "powerpc64-unknown-linux-gnu"
 
 [[pkg.rust.target.powerpc64-unknown-linux-gnu.extensions]]
@@ -6341,10 +6341,10 @@ target = "*"
 
 [pkg.rust.target.powerpc64le-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-powerpc64le-unknown-linux-gnu.tar.gz"
-hash = "194a33d5ccd7297676d4e67ce0f23abba6e93f69d58326a59237cb4e838ae271"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-powerpc64le-unknown-linux-gnu.tar.xz"
-xz_hash = "0f614712fa306c8fa9a2f981359354a76e80242a2af9d0785486044497122f26"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-powerpc64le-unknown-linux-gnu.tar.gz"
+hash = "fb13c4579d12059ed1574f3edd4857830ba6b8083b35725bc449542052c80a58"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-powerpc64le-unknown-linux-gnu.tar.xz"
+xz_hash = "8fb3c027147ef7e08f988a56ab1459e0b4a718be9ffe5c6c6599ebcb46b656e0"
 
 [[pkg.rust.target.powerpc64le-unknown-linux-gnu.components]]
 pkg = "rustc"
@@ -6363,7 +6363,7 @@ pkg = "clippy-preview"
 target = "powerpc64le-unknown-linux-gnu"
 
 [[pkg.rust.target.powerpc64le-unknown-linux-gnu.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "powerpc64le-unknown-linux-gnu"
 
 [[pkg.rust.target.powerpc64le-unknown-linux-gnu.extensions]]
@@ -6712,10 +6712,10 @@ target = "*"
 
 [pkg.rust.target.s390x-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-s390x-unknown-linux-gnu.tar.gz"
-hash = "7907ca499913d303e65d3f6a8c54e19a8ce546aad83d5aac64ff505d8b736cf4"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-s390x-unknown-linux-gnu.tar.xz"
-xz_hash = "0acda9b73da1391fd15ddab5d49329dc586bbf74c41bb9b93f25f41f70c2bdf8"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-s390x-unknown-linux-gnu.tar.gz"
+hash = "d661114de9414dcf258f04e12dd0a4a1d3798f70c5109aebceaae637330b376c"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-s390x-unknown-linux-gnu.tar.xz"
+xz_hash = "7573c91d09782b7f3feca2dfc6d4b91a5db1f0a9395ebae89136dcb7bce0d22e"
 
 [[pkg.rust.target.s390x-unknown-linux-gnu.components]]
 pkg = "rustc"
@@ -6734,7 +6734,7 @@ pkg = "clippy-preview"
 target = "s390x-unknown-linux-gnu"
 
 [[pkg.rust.target.s390x-unknown-linux-gnu.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "s390x-unknown-linux-gnu"
 
 [[pkg.rust.target.s390x-unknown-linux-gnu.extensions]]
@@ -7083,10 +7083,10 @@ target = "*"
 
 [pkg.rust.target.x86_64-apple-darwin]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-x86_64-apple-darwin.tar.gz"
-hash = "1cab7c86edf821dd15c4e4e2b0c38b139c4a4b01cb444c51e94984c79ed943e1"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-x86_64-apple-darwin.tar.xz"
-xz_hash = "6a0c3846614a2088763f1a5bfa930ae8f72832ce9e9a49cdacea916ecfdbdafa"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-x86_64-apple-darwin.tar.gz"
+hash = "1471ae5ba9427dcd6fe6d6ee4eab713ae15edfec2c2118675ae4d10d566f28a6"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-x86_64-apple-darwin.tar.xz"
+xz_hash = "02ee0ed91c8e1ea0d43ddfd203b6f1be0b842ad27bbf8d278e2a863b3ad061ee"
 
 [[pkg.rust.target.x86_64-apple-darwin.components]]
 pkg = "rustc"
@@ -7109,7 +7109,7 @@ pkg = "clippy-preview"
 target = "x86_64-apple-darwin"
 
 [[pkg.rust.target.x86_64-apple-darwin.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "x86_64-apple-darwin"
 
 [[pkg.rust.target.x86_64-apple-darwin.extensions]]
@@ -7458,10 +7458,10 @@ target = "*"
 
 [pkg.rust.target.x86_64-pc-windows-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-x86_64-pc-windows-gnu.tar.gz"
-hash = "a47b27c38bbce6931b4d221626f86ee0e7fadb0c34f081740387b6b435d158c1"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-x86_64-pc-windows-gnu.tar.xz"
-xz_hash = "f5bf5fc2bb1e78b4b00fb2c8317c51f09ea8c8a65e7afed90a35e8972e5f54b8"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-x86_64-pc-windows-gnu.tar.gz"
+hash = "e9e83f6df3ab18bf3145462615f0b32d7242571476eb18fef05a67cb99217a0b"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-x86_64-pc-windows-gnu.tar.xz"
+xz_hash = "0d147a843e559301f438ed87503e78a449a19c52b036c404d02b86823e78cd3a"
 
 [[pkg.rust.target.x86_64-pc-windows-gnu.components]]
 pkg = "rustc"
@@ -7488,7 +7488,7 @@ pkg = "clippy-preview"
 target = "x86_64-pc-windows-gnu"
 
 [[pkg.rust.target.x86_64-pc-windows-gnu.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "x86_64-pc-windows-gnu"
 
 [[pkg.rust.target.x86_64-pc-windows-gnu.extensions]]
@@ -7837,10 +7837,10 @@ target = "*"
 
 [pkg.rust.target.x86_64-pc-windows-msvc]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-x86_64-pc-windows-msvc.tar.gz"
-hash = "d6823b46394399d97c897833d08ba7e22d8452155d2987eb73b1b06e4dad0e46"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-x86_64-pc-windows-msvc.tar.xz"
-xz_hash = "ef14a18c3ed188ba0f5893c0ba749e8bc407921b1ebd8d75de9b43bd6eaa709e"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-x86_64-pc-windows-msvc.tar.gz"
+hash = "0f25061a20561a492ef570b0f240abee677c16e74b3ee03a5c717f08741d5e7e"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-x86_64-pc-windows-msvc.tar.xz"
+xz_hash = "01a64041edf8ad14050fa503622e1a8a8e66e405afe5056b8132efeaa60ab5df"
 
 [[pkg.rust.target.x86_64-pc-windows-msvc.components]]
 pkg = "rustc"
@@ -7863,7 +7863,7 @@ pkg = "clippy-preview"
 target = "x86_64-pc-windows-msvc"
 
 [[pkg.rust.target.x86_64-pc-windows-msvc.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "x86_64-pc-windows-msvc"
 
 [[pkg.rust.target.x86_64-pc-windows-msvc.extensions]]
@@ -8212,10 +8212,10 @@ target = "*"
 
 [pkg.rust.target.x86_64-unknown-freebsd]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-x86_64-unknown-freebsd.tar.gz"
-hash = "8543bfd70c6d51a63b88a3216facfc4b05868513fe3f16b7416c4db9fe056f72"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-x86_64-unknown-freebsd.tar.xz"
-xz_hash = "0e0079e6fe5957a3b8c7e9e72e128276072b5c0737e2a877f9c1ab1098c6371a"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-x86_64-unknown-freebsd.tar.gz"
+hash = "9c4122466cc8b0d7d36ae1985c168e742309b33d00596dd226b2a700c72cfcc0"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-x86_64-unknown-freebsd.tar.xz"
+xz_hash = "a67ef9a19ebe570a7f20ec5d7b285c1bb30683aa2e39ff0348f37a6139368c2e"
 
 [[pkg.rust.target.x86_64-unknown-freebsd.components]]
 pkg = "rustc"
@@ -8234,7 +8234,7 @@ pkg = "clippy-preview"
 target = "x86_64-unknown-freebsd"
 
 [[pkg.rust.target.x86_64-unknown-freebsd.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "x86_64-unknown-freebsd"
 
 [[pkg.rust.target.x86_64-unknown-freebsd.extensions]]
@@ -8583,10 +8583,10 @@ target = "*"
 
 [pkg.rust.target.x86_64-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-x86_64-unknown-linux-gnu.tar.gz"
-hash = "5bd66da192eb3ef605ce88a2772d85e18bad8ac38fa7a46764d3b268a24b6b48"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-x86_64-unknown-linux-gnu.tar.xz"
-xz_hash = "5ae876912a5352064daa945c3b36735aa3a835b06b598e5b944c0da0450c74de"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-x86_64-unknown-linux-gnu.tar.gz"
+hash = "f7c541abbaf83ef4e6e34b0c954e427c8447766aea2f098af07de8be4cef15a6"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-x86_64-unknown-linux-gnu.tar.xz"
+xz_hash = "9ee8c7450eee37614c4f126e535b6429ad56fb8e5a3d2d26a985a0886fa434a0"
 
 [[pkg.rust.target.x86_64-unknown-linux-gnu.components]]
 pkg = "rustc"
@@ -8609,7 +8609,7 @@ pkg = "clippy-preview"
 target = "x86_64-unknown-linux-gnu"
 
 [[pkg.rust.target.x86_64-unknown-linux-gnu.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "x86_64-unknown-linux-gnu"
 
 [[pkg.rust.target.x86_64-unknown-linux-gnu.extensions]]
@@ -8958,10 +8958,10 @@ target = "*"
 
 [pkg.rust.target.x86_64-unknown-linux-musl]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-x86_64-unknown-linux-musl.tar.gz"
-hash = "3a1cb914e734f5659ec4c4af56aa3b8c5289a6e07c77c4d7785170be99da93aa"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-x86_64-unknown-linux-musl.tar.xz"
-xz_hash = "2b7ddb3d83a9779f57e92c4dd0df53d1d351fcb8a8ea8aa39f5d4ec0b42a5f1b"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-x86_64-unknown-linux-musl.tar.gz"
+hash = "0d6004890e1dd9eb3017e4b8c8af3ab512122ae2b75c1aa67f228e225ac83128"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-x86_64-unknown-linux-musl.tar.xz"
+xz_hash = "2ee345ce6beba3e82959bbac6b9b308a763d920869641541b150191b48ee4acc"
 
 [[pkg.rust.target.x86_64-unknown-linux-musl.components]]
 pkg = "rustc"
@@ -8980,7 +8980,7 @@ pkg = "clippy-preview"
 target = "x86_64-unknown-linux-musl"
 
 [[pkg.rust.target.x86_64-unknown-linux-musl.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "x86_64-unknown-linux-musl"
 
 [[pkg.rust.target.x86_64-unknown-linux-musl.extensions]]
@@ -9329,10 +9329,10 @@ target = "*"
 
 [pkg.rust.target.x86_64-unknown-netbsd]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-x86_64-unknown-netbsd.tar.gz"
-hash = "e27342787a50a43bb86208d499e3e4fb8bf8dad9b225ed8cdc5ca8e74e1eea6c"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-nightly-x86_64-unknown-netbsd.tar.xz"
-xz_hash = "fe0bc75680c4100d01eebf302821dd954df19475021595da13d8aabb0adcdb92"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-x86_64-unknown-netbsd.tar.gz"
+hash = "451c8465115c20f7e10e8af2a774fe88711e34dc1bcd9f0535ede4148bdb238a"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-nightly-x86_64-unknown-netbsd.tar.xz"
+xz_hash = "b888ff1539e52ff64361e4154d515065d85024c2d94a9b808abe6ef5e8d29056"
 
 [[pkg.rust.target.x86_64-unknown-netbsd.components]]
 pkg = "rustc"
@@ -9351,7 +9351,7 @@ pkg = "clippy-preview"
 target = "x86_64-unknown-netbsd"
 
 [[pkg.rust.target.x86_64-unknown-netbsd.extensions]]
-pkg = "miri"
+pkg = "miri-preview"
 target = "x86_64-unknown-netbsd"
 
 [[pkg.rust.target.x86_64-unknown-netbsd.extensions]]
@@ -9699,69 +9699,69 @@ pkg = "rust-src"
 target = "*"
 
 [pkg.rust-analysis]
-version = "1.35.0-nightly (0f88167f8 2019-03-18)"
-git_commit_hash = "0f88167f89fffe321590c5148f21b7d51d44388d"
+version = "1.35.0-nightly (0633c55d2 2019-03-23)"
+git_commit_hash = "0633c55d2030969d91b57142b8582c53101e6339"
 [pkg.rust-analysis.target.aarch64-apple-ios]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-aarch64-apple-ios.tar.gz"
-hash = "f907f320b3b856a3a36651be7b3554ed1b85b990db147f9d5e32a5c0389c7106"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-aarch64-apple-ios.tar.xz"
-xz_hash = "3f7137c67ef698c51176380073a8dc0043cac703cb41823520634a1ed3a33c33"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-aarch64-apple-ios.tar.gz"
+hash = "17f24611e61970d49a57390e05716469c7fb02a028bc531deed46634d84dc126"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-aarch64-apple-ios.tar.xz"
+xz_hash = "c519ad29988bc261fb38b747ee9b9ddb0b0403050813587b66d912001f168fcd"
 
 [pkg.rust-analysis.target.aarch64-fuchsia]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-aarch64-fuchsia.tar.gz"
-hash = "8e4b72818fc81c8ef7d0381584b2c603073fb103fae47fe3cd2f9cf48efb44e3"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-aarch64-fuchsia.tar.xz"
-xz_hash = "9d9439d65c77c2ca02131fd71b553f78b3aa0c025b8004e91b50e6d87b56af0d"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-aarch64-fuchsia.tar.gz"
+hash = "2a97ab57ef996f71016a9be8fbd17c162ff49981a4f21f292bb002c261fe5387"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-aarch64-fuchsia.tar.xz"
+xz_hash = "fe43a4f9254b032bb41c7d62d973ba1f2e8ba777fde3c64cf249cd53614eaa66"
 
 [pkg.rust-analysis.target.aarch64-linux-android]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-aarch64-linux-android.tar.gz"
-hash = "5ffd4de50badf9946c7d5292220e5877d1e773eacfb3c84cd0e8770d70ea134a"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-aarch64-linux-android.tar.xz"
-xz_hash = "c3a4bc4b167ec996656199d7c2a9d619013099dc2f28d77327337f187077c645"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-aarch64-linux-android.tar.gz"
+hash = "edf2fbd5c102150932cf02ff1b887692be876b76cb3f665b8eaa0e2e62eb8ffd"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-aarch64-linux-android.tar.xz"
+xz_hash = "a71ac3e990b2e78586895b4988647ba22a5226ca5411c85c99902802aad11b24"
 
 [pkg.rust-analysis.target.aarch64-pc-windows-msvc]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-aarch64-pc-windows-msvc.tar.gz"
-hash = "bc9fa0ff161d8f5ff4ead016086db21e29ab60362d0a9d6c8b6a49b2ebd43781"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-aarch64-pc-windows-msvc.tar.xz"
-xz_hash = "c4cf434a86605c206c9bdaeebff591f17a35f50614b6cf983929eaca4b896c69"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-aarch64-pc-windows-msvc.tar.gz"
+hash = "b2caf0729cf094c4632dc98555b5608d87ae37fd044cbee5206934250cc23c4c"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-aarch64-pc-windows-msvc.tar.xz"
+xz_hash = "168f4df90506649fe88a639426520a8de65a36be88cdf58d42805f67b9656268"
 
 [pkg.rust-analysis.target.aarch64-unknown-cloudabi]
 available = false
 
 [pkg.rust-analysis.target.aarch64-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-aarch64-unknown-linux-gnu.tar.gz"
-hash = "3e1dfcfa5ae1f4dc67d72699550648de1a73e28a03077898a2690c27b06b3bdb"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-aarch64-unknown-linux-gnu.tar.xz"
-xz_hash = "afbbca78ce55aef0d882cdf524c4e69789b7647416219c252fb37f5ba8e62050"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-aarch64-unknown-linux-gnu.tar.gz"
+hash = "45b51ca6b27033845a1bd316f8bc0cf03e5b642c41ac30757eebf7ea08c2f389"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-aarch64-unknown-linux-gnu.tar.xz"
+xz_hash = "92c80fd95c006ba9729c5612dcc8b786ed0d5ac98b681a9bcb7857a0adccc047"
 
 [pkg.rust-analysis.target.aarch64-unknown-linux-musl]
 available = false
 
 [pkg.rust-analysis.target.arm-linux-androideabi]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-arm-linux-androideabi.tar.gz"
-hash = "a4bf12bc2127284c5e98579feb2779ef2232e4a970fe8130a0c486c670651f0b"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-arm-linux-androideabi.tar.xz"
-xz_hash = "a6bee74c759b5e2348199e876e0e10fa384ce8443994fcdbca98f1ec293927ef"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-arm-linux-androideabi.tar.gz"
+hash = "2baa3002b8151dcff0c85fa3b33688122567312b363fe0d22b34e46ffa479a95"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-arm-linux-androideabi.tar.xz"
+xz_hash = "b58262fddeb62fc6d7edfeaabd62acf1c7dbee07dde04a07eada68436e0d7ce9"
 
 [pkg.rust-analysis.target.arm-unknown-linux-gnueabi]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-arm-unknown-linux-gnueabi.tar.gz"
-hash = "ef90c386d552636ff1627fc0eb58e93dd6d0705e07583015e4ba2389a36897d9"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-arm-unknown-linux-gnueabi.tar.xz"
-xz_hash = "951b6efabe1f5ffbf695b9f71ce8f51ca255a8daae40e2a6db5c5b173334c7ca"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-arm-unknown-linux-gnueabi.tar.gz"
+hash = "fbd1019f18f6392ccffffaf475434a59d5adfab2df4456e383b421e6ae22ebd3"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-arm-unknown-linux-gnueabi.tar.xz"
+xz_hash = "8400a19d6ddf28a5e7a62b843d4946734a143e944991bfaceccb35e9ea0708e9"
 
 [pkg.rust-analysis.target.arm-unknown-linux-gnueabihf]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-arm-unknown-linux-gnueabihf.tar.gz"
-hash = "3f7326fcfba1172e939ac86b9cef364170b178afcea34445fd769c1f6432ecdf"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-arm-unknown-linux-gnueabihf.tar.xz"
-xz_hash = "64c86953c520f85cac2a66c9712a79477fa8a24c5f70c4d691ccf751c7da80b6"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-arm-unknown-linux-gnueabihf.tar.gz"
+hash = "ead29059b91253d304800511b95e159f175e682dc2b7a7a9ea161a2d1492e60d"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-arm-unknown-linux-gnueabihf.tar.xz"
+xz_hash = "23322384a58dbb076f8855f246a2dfc26d238a2a85243fc0cab3387edc042ec6"
 
 [pkg.rust-analysis.target.arm-unknown-linux-musleabi]
 available = false
@@ -9783,24 +9783,24 @@ available = false
 
 [pkg.rust-analysis.target.armv7-apple-ios]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-armv7-apple-ios.tar.gz"
-hash = "36f1bb990ee41bc857aea6a99b1bc964763c178ba3b92c02aabfa2adf40e44b8"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-armv7-apple-ios.tar.xz"
-xz_hash = "244210a56e8906bdfc66b1136481cd3a81f7962edc28a10be090b418b7f3e10d"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-armv7-apple-ios.tar.gz"
+hash = "86353e3ba5f5dc9dbe3184bfdefe8b92d58cd71b71cde07007da930e4a36ccc4"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-armv7-apple-ios.tar.xz"
+xz_hash = "668ceeac0a228c8bc5b608131d2bba6e6790a0a35df285ed6eade1c573a0e655"
 
 [pkg.rust-analysis.target.armv7-linux-androideabi]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-armv7-linux-androideabi.tar.gz"
-hash = "71a159e0a574c386fe79a6cdd7916b0f13d8cc65d2f186eced6c9964a707059f"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-armv7-linux-androideabi.tar.xz"
-xz_hash = "de0a56310922934fa29bcb751c41e80911b6de2c89375292bf3f5b974dc8a33c"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-armv7-linux-androideabi.tar.gz"
+hash = "93b465bc2391576c5593a25641c162e1e90351eb97f1d3ec4844ae01280eccd6"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-armv7-linux-androideabi.tar.xz"
+xz_hash = "af7a00e25d737d2991d86e7f6a7f1d20dc1ba59fc45f26671d1ef48e3fb5a911"
 
 [pkg.rust-analysis.target.armv7-unknown-linux-gnueabihf]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-armv7-unknown-linux-gnueabihf.tar.gz"
-hash = "5508d812dbcee488cf703ef704a3520af48f984bd54314d64b1623440976bbc2"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-armv7-unknown-linux-gnueabihf.tar.xz"
-xz_hash = "0317b78e24859f15706dcadb3feaf43dd820aafa186b3fb15bc2626024652667"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-armv7-unknown-linux-gnueabihf.tar.gz"
+hash = "582f78c3efb62e229cab11902ce6845d2ad45660086aad940797b2cc4f34935c"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-armv7-unknown-linux-gnueabihf.tar.xz"
+xz_hash = "047f5b3109db33ba884891b5d5f37a470795ae3e7986ae8a9eb8f7dab77d4886"
 
 [pkg.rust-analysis.target.armv7-unknown-linux-musleabihf]
 available = false
@@ -9813,121 +9813,121 @@ available = false
 
 [pkg.rust-analysis.target.armv7s-apple-ios]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-armv7s-apple-ios.tar.gz"
-hash = "e4b0275e143e7ece65814593ccf21250012daa10b2f8bc028dce2e52a1d6e712"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-armv7s-apple-ios.tar.xz"
-xz_hash = "1f04a9d27e700d81c97492f01234ff8e7354e337e4c38a8e3f46190638746fb1"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-armv7s-apple-ios.tar.gz"
+hash = "f5901d4b6fd415aa6a108908d0a10be94c2e25cc3ce3910502f786ad5ed5a6bc"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-armv7s-apple-ios.tar.xz"
+xz_hash = "16864ea4c1322d13f9049ff9b75b9e3befba9fe35f79c85d701b42caa07d0888"
 
 [pkg.rust-analysis.target.asmjs-unknown-emscripten]
 available = false
 
 [pkg.rust-analysis.target.i386-apple-ios]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-i386-apple-ios.tar.gz"
-hash = "3456835dade552479a85541eb8b5bd19c61647fe82d55aceaae7a693d78cea9a"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-i386-apple-ios.tar.xz"
-xz_hash = "d9f559a5a8af571e44e0eaedaa9aea81e4f79a5a7f3db58b2402d9eec95d6fba"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-i386-apple-ios.tar.gz"
+hash = "56267a6ea59b82d832134e1b2ca641f01f1fb264ae30d28759556947089cf914"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-i386-apple-ios.tar.xz"
+xz_hash = "d59aeb78aac04a5378a747aeec65cee5655112bd4d1a56276e3f5f93a7a75a48"
 
 [pkg.rust-analysis.target.i586-pc-windows-msvc]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-i586-pc-windows-msvc.tar.gz"
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 [pkg.rust-analysis.target.mips-unknown-linux-musl]
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 [pkg.rust-analysis.target.mips64el-unknown-linux-gnuabi64]
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 [pkg.rust-analysis.target.mipsel-unknown-linux-gnu]
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 [pkg.rust-analysis.target.mipsel-unknown-linux-musl]
 available = false
@@ -9946,31 +9946,31 @@ available = false
 
 [pkg.rust-analysis.target.nvptx64-nvidia-cuda]
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 [pkg.rust-analysis.target.powerpc-unknown-linux-gnu]
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 [pkg.rust-analysis.target.powerpc64-unknown-linux-gnu]
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 [pkg.rust-analysis.target.powerpc64le-unknown-linux-gnu]
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+url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-powerpc64le-unknown-linux-gnu.tar.gz"
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 [pkg.rust-analysis.target.riscv32imac-unknown-none-elf]
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@@ -9986,20 +9986,20 @@ available = false
 
 [pkg.rust-analysis.target.s390x-unknown-linux-gnu]
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-url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-s390x-unknown-linux-gnu.tar.gz"
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 [pkg.rust-analysis.target.sparc64-unknown-linux-gnu]
 available = false
 
 [pkg.rust-analysis.target.sparcv9-sun-solaris]
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-url = "https://static.rust-lang.org/dist/2019-03-19/rust-analysis-nightly-sparcv9-sun-solaris.tar.gz"
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-xz_hash = "860cd6b4699289f23094e2c81758a7ad75781cde7036decd67a56dbe7d60148a"
+url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-sparcv9-sun-solaris.tar.gz"
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 [pkg.rust-analysis.target.thumbv6m-none-eabi]
 available = false
@@ -10015,10 +10015,10 @@ available = false
 
 [pkg.rust-analysis.target.thumbv7neon-linux-androideabi]
 available = true
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 [pkg.rust-analysis.target.thumbv7neon-unknown-linux-gnueabihf]
 available = false
@@ -10031,486 +10031,486 @@ available = false
 
 [pkg.rust-analysis.target.wasm32-unknown-unknown]
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 [pkg.rust-analysis.target.x86_64-apple-ios]
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 [pkg.rust-analysis.target.x86_64-fuchsia]
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 [pkg.rust-analysis.target.x86_64-pc-windows-msvc]
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 [pkg.rust-analysis.target.x86_64-rumprun-netbsd]
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 [pkg.rust-analysis.target.x86_64-sun-solaris]
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 [pkg.rust-analysis.target.x86_64-unknown-cloudabi]
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 [pkg.rust-analysis.target.x86_64-unknown-freebsd]
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 [pkg.rust-analysis.target.x86_64-unknown-linux-gnu]
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 [pkg.rust-analysis.target.x86_64-unknown-linux-gnux32]
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 [pkg.rust-analysis.target.x86_64-unknown-linux-musl]
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 [pkg.rust-analysis.target.x86_64-unknown-netbsd]
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 [pkg.rust-analysis.target.x86_64-unknown-redox]
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 [pkg.rust-docs]
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 [pkg.rust-docs.target.i686-apple-darwin]
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 [pkg.rust-docs.target.i686-pc-windows-gnu]
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 [pkg.rust-docs.target.i686-pc-windows-msvc]
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 [pkg.rust-docs.target.i686-unknown-linux-gnu]
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 [pkg.rust-std.target.aarch64-unknown-cloudabi]
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 [pkg.rust-std.target.mipsel-unknown-linux-gnu]
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 [pkg.rust-std.target.mipsel-unknown-linux-musl]
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 [pkg.rust-std.target.mipsisa32r6-unknown-linux-gnu]
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@@ -10526,342 +10526,342 @@ available = false
 
 [pkg.rust-std.target.nvptx64-nvidia-cuda]
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 [pkg.rust-std.target.powerpc64-unknown-linux-gnu]
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 [pkg.rust-std.target.powerpc64le-unknown-linux-gnu]
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 [pkg.rust-std.target.riscv32imc-unknown-none-elf]
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 [pkg.rust-std.target.riscv64gc-unknown-none-elf]
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 [pkg.rust-std.target.riscv64imac-unknown-none-elf]
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 [pkg.rust-std.target.s390x-unknown-linux-gnu]
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 [pkg.rust-std.target.sparc64-unknown-linux-gnu]
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 [pkg.rust-std.target.sparcv9-sun-solaris]
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 [pkg.rust-std.target.thumbv6m-none-eabi]
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 [pkg.rust-std.target.thumbv7em-none-eabi]
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 [pkg.rust-std.target.thumbv7em-none-eabihf]
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 [pkg.rust-std.target.x86_64-unknown-netbsd]
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 [pkg.rustc.target.arm-unknown-linux-gnueabi]
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 [pkg.rustc.target.arm-unknown-linux-gnueabihf]
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 [pkg.rustc.target.armv7-unknown-linux-gnueabihf]
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 [pkg.rustc.target.i686-pc-windows-msvc]
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 [pkg.rustc.target.i686-unknown-linux-gnu]
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 [pkg.rustc.target.mips-unknown-linux-gnu]
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 [pkg.rustc.target.mips64-unknown-linux-gnuabi64]
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 [pkg.rustc.target.mips64el-unknown-linux-gnuabi64]
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 [pkg.rustc.target.mipsel-unknown-linux-gnu]
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-url = "https://static.rust-lang.org/dist/2019-03-19/rustc-nightly-mipsel-unknown-linux-gnu.tar.gz"
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+url = "https://static.rust-lang.org/dist/2019-03-24/rustc-nightly-mipsel-unknown-linux-gnu.tar.gz"
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 [pkg.rustc.target.mipsisa32r6-unknown-linux-gnu]
 available = false
@@ -10877,166 +10877,166 @@ available = false
 
 [pkg.rustc.target.powerpc-unknown-linux-gnu]
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 [pkg.rustc.target.powerpc64-unknown-linux-gnu]
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 [pkg.rustc.target.powerpc64le-unknown-linux-gnu]
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 [pkg.rustc.target.s390x-unknown-linux-gnu]
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 [pkg.rustc.target.x86_64-apple-darwin]
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 [pkg.rustc.target.x86_64-pc-windows-gnu]
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 [pkg.rustfmt-preview.target.mips64el-unknown-linux-gnuabi64]
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 [pkg.rustfmt-preview.target.mipsel-unknown-linux-gnu]
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 [pkg.rustfmt-preview.target.mipsisa32r6-unknown-linux-gnu]
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@@ -11052,83 +11052,86 @@ available = false
 
 [pkg.rustfmt-preview.target.powerpc-unknown-linux-gnu]
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 [pkg.rustfmt-preview.target.powerpc64-unknown-linux-gnu]
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 [pkg.rustfmt-preview.target.powerpc64le-unknown-linux-gnu]
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+url = "https://static.rust-lang.org/dist/2019-03-24/rustfmt-nightly-powerpc64le-unknown-linux-gnu.tar.gz"
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+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rustfmt-nightly-powerpc64le-unknown-linux-gnu.tar.xz"
+xz_hash = "ea68a76aa904ae0555245b9b990912500f183867acca7fcde79d5598cd752893"
 
 [pkg.rustfmt-preview.target.s390x-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rustfmt-nightly-s390x-unknown-linux-gnu.tar.gz"
-hash = "be99ef0691ca574cf6c85d372876973491b6e8296b8d7a4dd3ea10bfcb7e9468"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rustfmt-nightly-s390x-unknown-linux-gnu.tar.xz"
-xz_hash = "19157ce9390c26e11c47cd67f8b616bd5776f842e99dd4dcc498d64c0420f9b6"
+url = "https://static.rust-lang.org/dist/2019-03-24/rustfmt-nightly-s390x-unknown-linux-gnu.tar.gz"
+hash = "83a9a2fba725e5d0bc42556dd7e483f3eb4a232ee3cd7f8f96e86587a97e2bff"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rustfmt-nightly-s390x-unknown-linux-gnu.tar.xz"
+xz_hash = "d1fd503474a51a84a7342210930541a6daf4e37abf685ae0d06d050ecb8d0f66"
 
 [pkg.rustfmt-preview.target.x86_64-apple-darwin]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rustfmt-nightly-x86_64-apple-darwin.tar.gz"
-hash = "2a819fbe8e70cf369746f771c671a2b2efa26a31e919fdbece22070a106a68c3"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rustfmt-nightly-x86_64-apple-darwin.tar.xz"
-xz_hash = "a0efd1378fc02613b3e4792abed02bbfbd75409e1e9506749cc1d61fda07792b"
+url = "https://static.rust-lang.org/dist/2019-03-24/rustfmt-nightly-x86_64-apple-darwin.tar.gz"
+hash = "9888a570b11a5618289352a95394fa907978132e8c8067eb56e2e36a84079e1f"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rustfmt-nightly-x86_64-apple-darwin.tar.xz"
+xz_hash = "db8052bbae317e53b7b2cdc2478edbfb1aca496a7f9b441d2f19ec77a2cbca38"
 
 [pkg.rustfmt-preview.target.x86_64-pc-windows-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rustfmt-nightly-x86_64-pc-windows-gnu.tar.gz"
-hash = "ba39ed20fa9781563caeab26a6aaa4711c555694f2aea86991ca839460529fec"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rustfmt-nightly-x86_64-pc-windows-gnu.tar.xz"
-xz_hash = "2687432f48d035baef74e7a35aab521cac3c5a3ab2c205afd68e582782f380ea"
+url = "https://static.rust-lang.org/dist/2019-03-24/rustfmt-nightly-x86_64-pc-windows-gnu.tar.gz"
+hash = "7d5c4e9f2592888e78d34f9340d67ae61065d640d93b9bef832c4c474f9d9e66"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rustfmt-nightly-x86_64-pc-windows-gnu.tar.xz"
+xz_hash = "661f5785261c515723d9a90bcb22bc3dcea5df4ee7df4a81fbdd4620fde26969"
 
 [pkg.rustfmt-preview.target.x86_64-pc-windows-msvc]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rustfmt-nightly-x86_64-pc-windows-msvc.tar.gz"
-hash = "873c69851548de8fcd99d34bc9609551c9a320f6437509d2e9d61e68581a4abe"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rustfmt-nightly-x86_64-pc-windows-msvc.tar.xz"
-xz_hash = "6bbe47d138bc78f4aa6aabbbb8526c122124342e62aa4567b46864928f63fe98"
+url = "https://static.rust-lang.org/dist/2019-03-24/rustfmt-nightly-x86_64-pc-windows-msvc.tar.gz"
+hash = "c7d88c2fa7e018455975b7e488bd0d51f46265e3a7109f5f9edf8b8f234313a3"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rustfmt-nightly-x86_64-pc-windows-msvc.tar.xz"
+xz_hash = "88e8f8bfe086bf5790701e99e93502959c3c4d120e9f9063b72ee0ed1c7865df"
 
 [pkg.rustfmt-preview.target.x86_64-unknown-freebsd]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rustfmt-nightly-x86_64-unknown-freebsd.tar.gz"
-hash = "6f9f0696c0f2d9cf4772d0f9035e8f721fff3491bb3bc2c328713fb1bc7137f6"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rustfmt-nightly-x86_64-unknown-freebsd.tar.xz"
-xz_hash = "48f0be55d88de45f0dceedb109a668e29714b91496697612287694624eedda17"
+url = "https://static.rust-lang.org/dist/2019-03-24/rustfmt-nightly-x86_64-unknown-freebsd.tar.gz"
+hash = "317266cc6f5bcf1052a56770d9e93a842c7566be7562102d74a226034e48e0ef"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rustfmt-nightly-x86_64-unknown-freebsd.tar.xz"
+xz_hash = "8f51e91c2fed8d8f3f71224858c89b02b39f6cdc5fdc7f2efee57e7de6365d8c"
 
 [pkg.rustfmt-preview.target.x86_64-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rustfmt-nightly-x86_64-unknown-linux-gnu.tar.gz"
-hash = "726c9174ae34970494d64e20d2046761c9e6adb2b8a9f3c81b97b22e156e6149"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rustfmt-nightly-x86_64-unknown-linux-gnu.tar.xz"
-xz_hash = "be88f8ca5c3d9c77c56d3280e754520b0e67e5ece3e91807acca2ac5b339b795"
+url = "https://static.rust-lang.org/dist/2019-03-24/rustfmt-nightly-x86_64-unknown-linux-gnu.tar.gz"
+hash = "2dbc2325eceae94f43691b23fe295e4522ab54dfd624d1ebaebd86ee1461109b"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rustfmt-nightly-x86_64-unknown-linux-gnu.tar.xz"
+xz_hash = "094ef92116503e5de7f97a2ead35dfb1512f8f2d99f630d1911e795f32f06fbe"
 
 [pkg.rustfmt-preview.target.x86_64-unknown-linux-musl]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rustfmt-nightly-x86_64-unknown-linux-musl.tar.gz"
-hash = "248f2b9bc5378b232befbf61811c9160edd2023139a7643de41121d9c38f37d0"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rustfmt-nightly-x86_64-unknown-linux-musl.tar.xz"
-xz_hash = "b005c217bbce565a99f519e93577962c6d4d1c8b261442aca7ca00c9c8313521"
+url = "https://static.rust-lang.org/dist/2019-03-24/rustfmt-nightly-x86_64-unknown-linux-musl.tar.gz"
+hash = "a4ab2b95ba7bb233da05078f8859fb35831eb85650cf3c5190e587c59b950aea"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rustfmt-nightly-x86_64-unknown-linux-musl.tar.xz"
+xz_hash = "88f1c60d43f3d28b29a20b7c74cc06e6db3ffc70ce8748d24dc10f1c8279c332"
 
 [pkg.rustfmt-preview.target.x86_64-unknown-netbsd]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-19/rustfmt-nightly-x86_64-unknown-netbsd.tar.gz"
-hash = "c918a74bf3ea6ec05702e792f7b2d6a7c40bba50dfa1a958dcf144adbadacbec"
-xz_url = "https://static.rust-lang.org/dist/2019-03-19/rustfmt-nightly-x86_64-unknown-netbsd.tar.xz"
-xz_hash = "d400cbe252e5d21ac7656bf5d01d06248971efeba72175ddf35238ce2de96e78"
+url = "https://static.rust-lang.org/dist/2019-03-24/rustfmt-nightly-x86_64-unknown-netbsd.tar.gz"
+hash = "ba4340493ac4f8ffa1f580e6b3250a55cc75c40e1eb6dff6f4f5c55650d762d1"
+xz_url = "https://static.rust-lang.org/dist/2019-03-24/rustfmt-nightly-x86_64-unknown-netbsd.tar.xz"
+xz_hash = "aadabc8721c47896bf3772665b1486db8597d5a9457e1c871d27d2a17b347fbf"
 [renames.clippy]
 to = "clippy-preview"
 
+[renames.miri]
+to = "miri-preview"
+
 [renames.rls]
 to = "rls-preview"
 
@@ -11136,6 +11139,6 @@ to = "rls-preview"
 to = "rustfmt-preview"
 
 [profiles]
-complete = ["rustc", "cargo", "rust-std", "rust-mingw", "rust-docs", "rustfmt-preview", "clippy-preview", "rls-preview", "rust-src", "llvm-tools-preview", "lldb-preview", "rust-analysis", "miri"]
+complete = ["rustc", "cargo", "rust-std", "rust-mingw", "rust-docs", "rustfmt-preview", "clippy-preview", "rls-preview", "rust-src", "llvm-tools-preview", "lldb-preview", "rust-analysis", "miri-preview"]
 default = ["rustc", "cargo", "rust-std", "rust-mingw", "rust-docs", "rustfmt-preview", "clippy-preview"]
 minimal = ["rustc", "cargo", "rust-std", "rust-mingw"]