diff --git a/nix/channel-rust-nightly.toml b/nix/channel-rust-nightly.toml
index 9807bf0..1dc57da 100644
--- a/nix/channel-rust-nightly.toml
+++ b/nix/channel-rust-nightly.toml
@@ -1,90 +1,90 @@
 manifest-version = "2"
-date = "2019-03-24"
+date = "2019-04-02"
 [pkg.cargo]
-version = "0.36.0-nightly (0e35bd8af 2019-03-13)"
+version = "0.36.0-nightly (63231f438 2019-03-27)"
 [pkg.cargo.target.aarch64-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-aarch64-unknown-linux-gnu.tar.gz"
+hash = "38be7a749becfd3d5953200b36bca747553ab10bba5e11483152f81e5496df30"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-aarch64-unknown-linux-gnu.tar.xz"
+xz_hash = "06ee5caa8987790b8eb81e774b2db4d1da7e92cbb2058309cdd1cf6a7c371663"
 
 [pkg.cargo.target.arm-unknown-linux-gnueabi]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-arm-unknown-linux-gnueabi.tar.gz"
+hash = "ccea852ee58b7e3a4ccdf80a8fd178793db9c41b904ec648a297b8989edf6431"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-arm-unknown-linux-gnueabi.tar.xz"
+xz_hash = "8c41759601f47ba454056bdbdb07f4a691bcb5a5ce6542f8718155cee0bec110"
 
 [pkg.cargo.target.arm-unknown-linux-gnueabihf]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-arm-unknown-linux-gnueabihf.tar.gz"
+hash = "5fce04f2f78ae01a17a33c60467334738e5249c2560dc5f19e06d105e312ab3d"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-arm-unknown-linux-gnueabihf.tar.xz"
+xz_hash = "3dd454f2c8223b6e045d006d5bad805645aea7b3ed01be3314d9d73a8561b011"
 
 [pkg.cargo.target.armv7-unknown-linux-gnueabihf]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-armv7-unknown-linux-gnueabihf.tar.gz"
+hash = "efa0cd2e7b31064aff15a7ee59026cf2cc757bbfba8e149ecf36a62961ced36b"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-armv7-unknown-linux-gnueabihf.tar.xz"
+xz_hash = "905d2aacf9c3d844498b33976ef17557191fe1e1a9383c5b0dc21e48a5bfd8ab"
 
 [pkg.cargo.target.i686-apple-darwin]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-i686-apple-darwin.tar.gz"
+hash = "c1405ed7a6c9e5cb367dbbd7b4d77cb22114a05a70b3c4e45e513af304f41521"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-i686-apple-darwin.tar.xz"
+xz_hash = "3e7de71b5239496cf00573555743221e09d47d0352998c740d89db146da9de38"
 
 [pkg.cargo.target.i686-pc-windows-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-i686-pc-windows-gnu.tar.gz"
+hash = "d2add9853b40ca6c394310aeea8541f34d46036bf82cc87a964792be861084ce"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-i686-pc-windows-gnu.tar.xz"
+xz_hash = "489bc588af3ceb97d04997ef69cfb9313b53c9a847d3e0f719842c6c066f557c"
 
 [pkg.cargo.target.i686-pc-windows-msvc]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-i686-pc-windows-msvc.tar.gz"
+hash = "bcdaf9282101e13c58af62ef1511758ec329eb74e71b2072c58af74e51478452"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-i686-pc-windows-msvc.tar.xz"
+xz_hash = "2bf6493015d7e000a1aa039a434bc048652c2413b3b213f61428fbbb1bff35a0"
 
 [pkg.cargo.target.i686-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-i686-unknown-linux-gnu.tar.gz"
+hash = "59fa170a38475e338fc7326f6c94eb75fed57687dec3acba8c334e40ba1baba9"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-i686-unknown-linux-gnu.tar.xz"
+xz_hash = "8e3238c0ba3d5102c6b657600a3d1c09d2e318028d51cb90d43d9b53f0d231d7"
 
 [pkg.cargo.target.mips-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-mips-unknown-linux-gnu.tar.gz"
+hash = "d70d69424d9d613c64211fc5d99f184bbf1ce58c27bb338ecfececd0abd5c3c0"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-mips-unknown-linux-gnu.tar.xz"
+xz_hash = "87d3381f8b5f5851a15b324e7260071660024dd4bdba3451a4c21842a139a4f5"
 
 [pkg.cargo.target.mips64-unknown-linux-gnuabi64]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-mips64-unknown-linux-gnuabi64.tar.gz"
+hash = "fec74eef880184d31b0ae510e483da290cb54e16c78d3c584cc6e468d1048933"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-mips64-unknown-linux-gnuabi64.tar.xz"
+xz_hash = "6c6e2eec0d156d53a9569f7ed0b0b18789c3d34f14de2b2bdef2f14032899d85"
 
 [pkg.cargo.target.mips64el-unknown-linux-gnuabi64]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-mips64el-unknown-linux-gnuabi64.tar.gz"
+hash = "65170c7ec5fb22a0d07df76042057e78779b2862ff190152160575dbd9bdedbe"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-mips64el-unknown-linux-gnuabi64.tar.xz"
+xz_hash = "495f6960c2ca89bd54bb644de44d17b92757777246f7b2eb56df7cb9f1fef025"
 
 [pkg.cargo.target.mipsel-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-mipsel-unknown-linux-gnu.tar.gz"
+hash = "6e0936ecd7bfc5f2c1fdd64f647df0aedf8ef7625183f8b255cc5eee723a7d23"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-mipsel-unknown-linux-gnu.tar.xz"
+xz_hash = "041b52d02d988d930a8deee9c066e14ef42453ae4321db747915855a475d7ed1"
 
 [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/2019-03-24/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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-powerpc-unknown-linux-gnu.tar.gz"
+hash = "f3efdd857b68c43db3c57ab171bc53e9d8080f5e3c3bddc44a1e919ea8a9a70f"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-powerpc-unknown-linux-gnu.tar.xz"
+xz_hash = "3a89a037c564d6631e016eab196dc2c5711e219ce507d33a96adc30cd5a8773e"
 
 [pkg.cargo.target.powerpc64-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-powerpc64-unknown-linux-gnu.tar.gz"
+hash = "d28a4bf5dd9d3dfe47dbb035549d479c4833f8f5eef6661be9025146f7bc873f"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-powerpc64-unknown-linux-gnu.tar.xz"
+xz_hash = "fe170a253eca1961967df8266773d862697839342eae73808619bfa4210e09d4"
 
 [pkg.cargo.target.powerpc64le-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-powerpc64le-unknown-linux-gnu.tar.gz"
+hash = "3d69354a0eb955e85c3ec66d0deaed0d8356c81a3ef8684427781bdb664efe3c"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-powerpc64le-unknown-linux-gnu.tar.xz"
+xz_hash = "3e6e5afae19b955adcc1f21459a6970396aded7a89e1c70d3ea392442f1f959f"
 
 [pkg.cargo.target.s390x-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-s390x-unknown-linux-gnu.tar.gz"
+hash = "903b374a899429677058ed262be4bfb54f538eb78ea66bfb8d5a4cb026386a01"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-s390x-unknown-linux-gnu.tar.xz"
+xz_hash = "f418189200e0e989437825265c571e5fa20aa89625e21a9deab372653cb13da9"
 
 [pkg.cargo.target.x86_64-apple-darwin]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-x86_64-apple-darwin.tar.gz"
+hash = "64d3a159cbbda356d0ff2a1014693d1cee7739089773450b07df0d923f0d731e"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-x86_64-apple-darwin.tar.xz"
+xz_hash = "0c52f30ddbf586ab4bf2a1a4c3c0c6dce6735b5f2d550c64a0abf204db32a7d1"
 
 [pkg.cargo.target.x86_64-pc-windows-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-x86_64-pc-windows-gnu.tar.gz"
+hash = "71c696566eac6f07ca4dc22c26c2cafc18304f912c872e47c16a197e5d91c4a3"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-x86_64-pc-windows-gnu.tar.xz"
+xz_hash = "91c4bfd1344451bf484ff9d16ba30aefa949dc7add2cb00c28ae0a5e9a8afc33"
 
 [pkg.cargo.target.x86_64-pc-windows-msvc]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-x86_64-pc-windows-msvc.tar.gz"
+hash = "8d8e15d671444109dd49153aa74e10fb8b9180243dab6084989166124518b264"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-x86_64-pc-windows-msvc.tar.xz"
+xz_hash = "acbc57c0fd2ed90d6ca0dfaef7ad76da6a4535f25d08ff75c024c3f23bf6615c"
 
 [pkg.cargo.target.x86_64-unknown-freebsd]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-x86_64-unknown-freebsd.tar.gz"
+hash = "b6868b2767665a1c002e2d9a5cdf2b8041abbcb5e6d9ff0b1e0cd1ea581a6c0e"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-x86_64-unknown-freebsd.tar.xz"
+xz_hash = "2a056f643f513878bdb0339321157a7d26eef42524c61489e93c81e5e6b1a447"
 
 [pkg.cargo.target.x86_64-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-x86_64-unknown-linux-gnu.tar.gz"
+hash = "d1b70fcc80566e7e95a250ff84a8a5adc934e4b3520149732027442ae90c43e0"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-x86_64-unknown-linux-gnu.tar.xz"
+xz_hash = "d0c3c537f4bf504d0f0febb24d49460a3f23e2a5e1ac748d0beb609e1c2d3420"
 
 [pkg.cargo.target.x86_64-unknown-linux-musl]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-x86_64-unknown-linux-musl.tar.gz"
+hash = "3d2cd1a6d761792f5c815c1f49fe331918fafd6047c80fd288ca80f69f4558ae"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-x86_64-unknown-linux-musl.tar.xz"
+xz_hash = "035ab8a89f35470e850cdf0e2fcd8b1ac9ee9ccbbe73921bfa998df3e122e12d"
 
 [pkg.cargo.target.x86_64-unknown-netbsd]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-x86_64-unknown-netbsd.tar.gz"
+hash = "3731adf529709872b8e5bac200462f5606200013b045fba86e57436d31056e6b"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/cargo-nightly-x86_64-unknown-netbsd.tar.xz"
+xz_hash = "23259bc458df0a6b7b62838714412e03c24f34fb64c08465b229ed908a3f6fd7"
 
 [pkg.clippy-preview]
 version = ""
@@ -259,7 +259,7 @@ available = false
 available = false
 
 [pkg.lldb-preview]
-version = "1.35.0-nightly (0633c55d2 2019-03-23)"
+version = "1.35.0-nightly (f69422288 2019-04-01)"
 [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/2019-03-24/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"
+url = "https://static.rust-lang.org/dist/2019-04-02/lldb-nightly-i686-apple-darwin.tar.gz"
+hash = "b343395a9a56e8bed77e9814f011a888477f729d43363879e4c74d05e9917cf8"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/lldb-nightly-i686-apple-darwin.tar.xz"
+xz_hash = "4fb9dbecedad1214f9d5249c553e0ae18f1460e543d9cd79f0fac9de823224a4"
 
 [pkg.lldb-preview.target.i686-linux-android]
 available = false
@@ -459,12 +459,15 @@ available = false
 [pkg.lldb-preview.target.wasm32-unknown-unknown]
 available = false
 
+[pkg.lldb-preview.target.wasm32-unknown-wasi]
+available = false
+
 [pkg.lldb-preview.target.x86_64-apple-darwin]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/lldb-nightly-x86_64-apple-darwin.tar.gz"
+hash = "14583f22fd1100134bba71da6dda5949114440cdd37949694aa05fbf526a4823"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/lldb-nightly-x86_64-apple-darwin.tar.xz"
+xz_hash = "58a423b3d92ccbb8618a8cfb77b83b96ae2b60b1cca5aa0d724c4b7351a31128"
 
 [pkg.lldb-preview.target.x86_64-apple-ios]
 available = false
@@ -512,7 +515,7 @@ available = false
 available = false
 
 [pkg.llvm-tools-preview]
-version = "1.35.0-nightly (0633c55d2 2019-03-23)"
+version = "1.35.0-nightly (f69422288 2019-04-01)"
 [pkg.llvm-tools-preview.target.aarch64-apple-ios]
 available = false
 
@@ -530,10 +533,10 @@ available = false
 
 [pkg.llvm-tools-preview.target.aarch64-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-aarch64-unknown-linux-gnu.tar.gz"
+hash = "d03cfb5d874e483a16c9a7279fc96b5ef556ad224efb9a8dd51f92a51fef5362"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-aarch64-unknown-linux-gnu.tar.xz"
+xz_hash = "84677c1128d8ad3a457b5ac2ab17079b90ee2ed7e3bf746a20e36f6e4aa95794"
 
 [pkg.llvm-tools-preview.target.aarch64-unknown-linux-musl]
 available = false
@@ -543,17 +546,17 @@ available = false
 
 [pkg.llvm-tools-preview.target.arm-unknown-linux-gnueabi]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-arm-unknown-linux-gnueabi.tar.gz"
+hash = "fc6d5e3812ac453ebbf798e0fca016a033805253b21fce5b56c0b4782f54e1b8"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-arm-unknown-linux-gnueabi.tar.xz"
+xz_hash = "6b69df3c33cd188f4385036ea48aa2c4facc82c67bf0e7bb732606c986663914"
 
 [pkg.llvm-tools-preview.target.arm-unknown-linux-gnueabihf]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-arm-unknown-linux-gnueabihf.tar.gz"
+hash = "7783d319adc5461587854e77d488f2c3a4b27aa6e7661cc4f3580903bf1343c7"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-arm-unknown-linux-gnueabihf.tar.xz"
+xz_hash = "e6676fdd84b36086dc67f8bace74a0009ccd8bbb6a84df01474a028efbe22967"
 
 [pkg.llvm-tools-preview.target.arm-unknown-linux-musleabi]
 available = false
@@ -581,10 +584,10 @@ available = false
 
 [pkg.llvm-tools-preview.target.armv7-unknown-linux-gnueabihf]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-armv7-unknown-linux-gnueabihf.tar.gz"
+hash = "994c6d88ebed38a2e04f66bec96006adc178f3420ec1fd91d898168c46ba3cb2"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-armv7-unknown-linux-gnueabihf.tar.xz"
+xz_hash = "ae1e1521823ac4e2e03090bec46bed1c8c99b57310b0fa06b23d83b9fb5ea387"
 
 [pkg.llvm-tools-preview.target.armv7-unknown-linux-musleabihf]
 available = false
@@ -615,75 +618,75 @@ available = false
 
 [pkg.llvm-tools-preview.target.i686-apple-darwin]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-i686-apple-darwin.tar.gz"
+hash = "d41438b2107d986e37b8f588f3d203433ca31781ba1e0b0e6b830fb4431ed941"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-i686-apple-darwin.tar.xz"
+xz_hash = "cfd1ad468228d3721c3ab1ee9b9f7969e28dcdd0c991acde056c878e31cdef42"
 
 [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/2019-03-24/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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-i686-pc-windows-gnu.tar.gz"
+hash = "fcfa022a70e4887323bf37c8b749e10d07cc9aab884c1c6de6548254c9c30dd2"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-i686-pc-windows-gnu.tar.xz"
+xz_hash = "088676904488bf1cee0fc56f05d85d675afdced8f5f270fd2bab1a70b9509192"
 
 [pkg.llvm-tools-preview.target.i686-pc-windows-msvc]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-i686-pc-windows-msvc.tar.gz"
+hash = "f5a23c9e5848bea5ebfed6049eee72a3ac5d224bc12f0fdf922a053e64859a32"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-i686-pc-windows-msvc.tar.xz"
+xz_hash = "bdc49f25f870ba3daaabf6a901ab3f7dc7cee8d2003bc41a4ed0e301bef98652"
 
 [pkg.llvm-tools-preview.target.i686-unknown-freebsd]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-i686-unknown-freebsd.tar.gz"
+hash = "866071be26b74e980d0d2e9623f6054053bfca6b9d973352bdf18d3455d9f9c7"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-i686-unknown-freebsd.tar.xz"
+xz_hash = "5a1162f6bb31324a927fc3df21b003dcb4a9d1c4cb6edd6be06664022e085249"
 
 [pkg.llvm-tools-preview.target.i686-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-i686-unknown-linux-gnu.tar.gz"
+hash = "1090a0c17a3c653b47f42ba178149756d5818d2f780aeeede1cbea8ad4e6450e"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-i686-unknown-linux-gnu.tar.xz"
+xz_hash = "701bcebde7d1d8648f6c15bfcd06d23ac11b72123bc3bc860b0d12cd98e42d74"
 
 [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/2019-03-24/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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-mips-unknown-linux-gnu.tar.gz"
+hash = "a9e938aabea3f4cdafc31a7c80114c3ed66b4183c26751470141c6823d5215d0"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-mips-unknown-linux-gnu.tar.xz"
+xz_hash = "46b058cf4e10b50a7024bfd7652e2157db4b2e4170516f6913f9d28717f71c28"
 
 [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/2019-03-24/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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-mips64-unknown-linux-gnuabi64.tar.gz"
+hash = "d085454ffce6e58c32b2f8f9042a511e4ca750aaf391b801a9c362a1aa81c151"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-mips64-unknown-linux-gnuabi64.tar.xz"
+xz_hash = "3b008a2ce7b59864d134980611d6227764a2af04286ea90897f57c60d8f9c819"
 
 [pkg.llvm-tools-preview.target.mips64el-unknown-linux-gnuabi64]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-mips64el-unknown-linux-gnuabi64.tar.gz"
+hash = "3e01787a752f881fed454328f87fbd63b9702b4d98ad301c5cd04660f041fcdf"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-mips64el-unknown-linux-gnuabi64.tar.xz"
+xz_hash = "58b5deba3530dbec16075cdc72fe31dde549a44fe80996c67b00fd3011742057"
 
 [pkg.llvm-tools-preview.target.mipsel-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-mipsel-unknown-linux-gnu.tar.gz"
+hash = "f49cef0820a096983bab113fbbbf33a7918cc7645c9f30f6da593a2beed57347"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-mipsel-unknown-linux-gnu.tar.xz"
+xz_hash = "46da8233f55c21f53e1c82fc47132c07aa57d98cd5a677b629ea3a3e2e2578ed"
 
 [pkg.llvm-tools-preview.target.mipsel-unknown-linux-musl]
 available = false
@@ -705,24 +708,24 @@ available = false
 
 [pkg.llvm-tools-preview.target.powerpc-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-powerpc-unknown-linux-gnu.tar.gz"
+hash = "cb24b1792ca5ebc1e640f7e0436b24c92b0c1dfcadf173f4d9e76d8ee7827a0f"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-powerpc-unknown-linux-gnu.tar.xz"
+xz_hash = "a5511495ff6526ac138b3d9dd288e104fa77c75c5c0526df40b8084c71049d8d"
 
 [pkg.llvm-tools-preview.target.powerpc64-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-powerpc64-unknown-linux-gnu.tar.gz"
+hash = "2086558c0a1ce8baf9af485f715799aebda8218982a90df2e9f112804f381af2"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-powerpc64-unknown-linux-gnu.tar.xz"
+xz_hash = "22001b18fc470ee437a2f2a3b18e4cd37d2fea3a50d3cb8dca99fd5d21199cdf"
 
 [pkg.llvm-tools-preview.target.powerpc64le-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-powerpc64le-unknown-linux-gnu.tar.gz"
+hash = "c4adf9f2404922bb7a020efb857146419a6a6b4f7c1c0f4b97c9c5f6aaeaa204"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-powerpc64le-unknown-linux-gnu.tar.xz"
+xz_hash = "7f0cf78bc8eed4f2ad4e86b91c23a3acc1a0b74a62ee53c5aa591412c09ec939"
 
 [pkg.llvm-tools-preview.target.riscv32imac-unknown-none-elf]
 available = false
@@ -738,10 +741,10 @@ available = false
 
 [pkg.llvm-tools-preview.target.s390x-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-s390x-unknown-linux-gnu.tar.gz"
+hash = "eb194e04d3d8c0fb450512304cf6c01f1241528fc7b27c32334aa4c2a822e598"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-s390x-unknown-linux-gnu.tar.xz"
+xz_hash = "21b940f908dbbd213a690480274a0f7c5895a6ea7440b69608d944eb42eede4e"
 
 [pkg.llvm-tools-preview.target.sparc64-unknown-linux-gnu]
 available = false
@@ -776,12 +779,15 @@ available = false
 [pkg.llvm-tools-preview.target.wasm32-unknown-unknown]
 available = false
 
+[pkg.llvm-tools-preview.target.wasm32-unknown-wasi]
+available = false
+
 [pkg.llvm-tools-preview.target.x86_64-apple-darwin]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-x86_64-apple-darwin.tar.gz"
+hash = "6529d3f5762101c0205f6fdbc38757377c09f8bcbc3f9531356350b37894308d"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-x86_64-apple-darwin.tar.xz"
+xz_hash = "5e35f975c6a52277478a2a67676623ee2feb3c1b44f860193945baa6ba9e3ae4"
 
 [pkg.llvm-tools-preview.target.x86_64-apple-ios]
 available = false
@@ -797,17 +803,17 @@ available = false
 
 [pkg.llvm-tools-preview.target.x86_64-pc-windows-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-x86_64-pc-windows-gnu.tar.gz"
+hash = "a64e4c51d676dcf319624eeb456cb606ac0768c4474e1fe3c5e5eac4f8d2899b"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-x86_64-pc-windows-gnu.tar.xz"
+xz_hash = "e38bd2dcc21fc0fef4309c07eca44e464bc9522fa43df25e6211f3fad9399eb1"
 
 [pkg.llvm-tools-preview.target.x86_64-pc-windows-msvc]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-x86_64-pc-windows-msvc.tar.gz"
+hash = "894215d4f9109985b790dde988c1aea6de71ece5fa9da03ba38924ae9e8e0b38"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-x86_64-pc-windows-msvc.tar.xz"
+xz_hash = "ceb6f29c088feffcdb0ffaa6cb59ebf17deb59002d89cea78988bc76023c213b"
 
 [pkg.llvm-tools-preview.target.x86_64-rumprun-netbsd]
 available = false
@@ -820,123 +826,75 @@ available = false
 
 [pkg.llvm-tools-preview.target.x86_64-unknown-freebsd]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-x86_64-unknown-freebsd.tar.gz"
+hash = "7331274dce85c6ca41c4cd1bb7d3c44f6d26b23b692d5572e014b4612cf227ca"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-x86_64-unknown-freebsd.tar.xz"
+xz_hash = "f9748b7e4429d03ad0eef526b66d6ed297b7ebac43a6ce2881a7f8dadd743725"
 
 [pkg.llvm-tools-preview.target.x86_64-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-x86_64-unknown-linux-gnu.tar.gz"
+hash = "9cbbe57a3937f092ca2878c100dda2c41b576c675e9314fe7504dfe2de1b1c34"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-x86_64-unknown-linux-gnu.tar.xz"
+xz_hash = "c6cb93d705e68d89be2f9db8ae95aea4a65323e31b1b726c49b1646a4db00b8a"
 
 [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/2019-03-24/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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-x86_64-unknown-linux-musl.tar.gz"
+hash = "4fc6c6558f5f56e228fba9c5ad4524f53b8d9b1d6de2b40f15e07439aca91e7a"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-x86_64-unknown-linux-musl.tar.xz"
+xz_hash = "da77c7b484d97f4f93a0614b972be5043d40a1cfef42f306804bef4eec0a696a"
 
 [pkg.llvm-tools-preview.target.x86_64-unknown-netbsd]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-x86_64-unknown-netbsd.tar.gz"
+hash = "335ea9af3f780bd1eea7f117cf0bd8920bc73be60ac8933787cca0e3e2b9ceae"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/llvm-tools-nightly-x86_64-unknown-netbsd.tar.xz"
+xz_hash = "aaecd9b47dd34f894d46c4db975a6be7cceef2c37da40ee72ec8250376c683c2"
 
 [pkg.llvm-tools-preview.target.x86_64-unknown-redox]
 available = false
 
 [pkg.miri-preview]
-version = "0.1.0-nightly (72b4ee038 2019-03-11)"
+version = ""
 [pkg.miri-preview.target.aarch64-unknown-linux-gnu]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.arm-unknown-linux-gnueabi]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.arm-unknown-linux-gnueabihf]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.armv7-unknown-linux-gnueabihf]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.i686-apple-darwin]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.i686-pc-windows-gnu]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.i686-pc-windows-msvc]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.i686-unknown-linux-gnu]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.mips-unknown-linux-gnu]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.mips64-unknown-linux-gnuabi64]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.mips64el-unknown-linux-gnuabi64]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.mipsel-unknown-linux-gnu]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.mipsisa32r6-unknown-linux-gnu]
 available = false
@@ -951,81 +909,37 @@ available = false
 available = false
 
 [pkg.miri-preview.target.powerpc-unknown-linux-gnu]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.powerpc64-unknown-linux-gnu]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.powerpc64le-unknown-linux-gnu]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.s390x-unknown-linux-gnu]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.x86_64-apple-darwin]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.x86_64-pc-windows-gnu]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.x86_64-pc-windows-msvc]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.x86_64-unknown-freebsd]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.x86_64-unknown-linux-gnu]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.x86_64-unknown-linux-musl]
-available = true
-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"
+available = false
 
 [pkg.miri-preview.target.x86_64-unknown-netbsd]
-available = true
-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"
+available = false
 
 [pkg.rls-preview]
 version = ""
@@ -1111,14 +1025,14 @@ available = false
 available = false
 
 [pkg.rust]
-version = "1.35.0-nightly (0633c55d2 2019-03-23)"
-git_commit_hash = "0633c55d2030969d91b57142b8582c53101e6339"
+version = "1.35.0-nightly (f69422288 2019-04-01)"
+git_commit_hash = "f694222887cf31f51e68927716c25736e62f037f"
 [pkg.rust.target.aarch64-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-aarch64-unknown-linux-gnu.tar.gz"
+hash = "1bd35e6e6f90a29467693ebe20c2900bc224c9238e4925f8b0c98628722c3460"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-aarch64-unknown-linux-gnu.tar.xz"
+xz_hash = "fd7ee6c494eea68e33f7404d677ccc8c1d8325008fb29b52420a2db60201d10c"
 
 [[pkg.rust.target.aarch64-unknown-linux-gnu.components]]
 pkg = "rustc"
@@ -1416,6 +1330,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.aarch64-unknown-linux-gnu.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.aarch64-unknown-linux-gnu.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -1486,10 +1404,10 @@ target = "*"
 
 [pkg.rust.target.arm-unknown-linux-gnueabi]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-arm-unknown-linux-gnueabi.tar.gz"
+hash = "544bc1321cf8c1257808585e2eb8ecb4acf75e1d758714fae2af6d73346cc44f"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-arm-unknown-linux-gnueabi.tar.xz"
+xz_hash = "aa238c66f6b4efe5649f226d466405951672c7da79b7bcf5550e72ca0b184a2d"
 
 [[pkg.rust.target.arm-unknown-linux-gnueabi.components]]
 pkg = "rustc"
@@ -1787,6 +1705,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.arm-unknown-linux-gnueabi.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.arm-unknown-linux-gnueabi.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -1857,10 +1779,10 @@ target = "*"
 
 [pkg.rust.target.arm-unknown-linux-gnueabihf]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-arm-unknown-linux-gnueabihf.tar.gz"
+hash = "6ae76f385bb1f081011eb17ebc90c586e14e8a9029f3813827981b163c25e6cd"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-arm-unknown-linux-gnueabihf.tar.xz"
+xz_hash = "8d38cd8dd6b1f596521a6a41b961ffdf6bcdb1138a4b6b22c9eb93f082e72a8d"
 
 [[pkg.rust.target.arm-unknown-linux-gnueabihf.components]]
 pkg = "rustc"
@@ -2158,6 +2080,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.arm-unknown-linux-gnueabihf.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.arm-unknown-linux-gnueabihf.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -2228,10 +2154,10 @@ target = "*"
 
 [pkg.rust.target.armv7-unknown-linux-gnueabihf]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-armv7-unknown-linux-gnueabihf.tar.gz"
+hash = "691b0f578369a92d49bc8878b530dc69e49a20f73c4be4b1bf6907778a6632e6"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-armv7-unknown-linux-gnueabihf.tar.xz"
+xz_hash = "a44208f1c7cb3a8b19fc49abc990aa5d0bc9e43495c25ecfe437bc1288012fff"
 
 [[pkg.rust.target.armv7-unknown-linux-gnueabihf.components]]
 pkg = "rustc"
@@ -2529,6 +2455,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.armv7-unknown-linux-gnueabihf.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.armv7-unknown-linux-gnueabihf.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -2599,10 +2529,10 @@ target = "*"
 
 [pkg.rust.target.i686-apple-darwin]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-i686-apple-darwin.tar.gz"
+hash = "812b642d487ab60227795dd1f914a5f980f91c622f83ee0bdadc36f5f6208f85"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-i686-apple-darwin.tar.xz"
+xz_hash = "7b5d15af8836dc79a71fc144b92ea9cb13c9149807e94c17df1e98caf75fa5b1"
 
 [[pkg.rust.target.i686-apple-darwin.components]]
 pkg = "rustc"
@@ -2904,6 +2834,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.i686-apple-darwin.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.i686-apple-darwin.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -2974,10 +2908,10 @@ target = "*"
 
 [pkg.rust.target.i686-pc-windows-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-i686-pc-windows-gnu.tar.gz"
+hash = "c43a0ef9dca9d033e6a481a9ff36e712630e9b98e0ee2161c250773518a8c972"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-i686-pc-windows-gnu.tar.xz"
+xz_hash = "9dd97ab4f42bcd04c60c5f1bd7e4427aca6d62ab306aa5069da1ce99296ef36d"
 
 [[pkg.rust.target.i686-pc-windows-gnu.components]]
 pkg = "rustc"
@@ -3283,6 +3217,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.i686-pc-windows-gnu.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.i686-pc-windows-gnu.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -3353,10 +3291,10 @@ target = "*"
 
 [pkg.rust.target.i686-pc-windows-msvc]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-i686-pc-windows-msvc.tar.gz"
+hash = "9bad3efca7e5280b1578451a847a34ff6518c203e79687775b74577f495b4c7d"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-i686-pc-windows-msvc.tar.xz"
+xz_hash = "dd12506bda84bd47f7179a573a58fa45c543c69e3bda2f3ef7af677b688c1385"
 
 [[pkg.rust.target.i686-pc-windows-msvc.components]]
 pkg = "rustc"
@@ -3658,6 +3596,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.i686-pc-windows-msvc.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.i686-pc-windows-msvc.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -3728,10 +3670,10 @@ target = "*"
 
 [pkg.rust.target.i686-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-i686-unknown-linux-gnu.tar.gz"
+hash = "f7d3eff72d7fa72b7ff50835ef19d84fc42f04167cd7231a9ddd53d77e94b20d"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-i686-unknown-linux-gnu.tar.xz"
+xz_hash = "cdec866e39a68b560fd36d23109d233c6e9997e128a6f49cb489f17c395b34b5"
 
 [[pkg.rust.target.i686-unknown-linux-gnu.components]]
 pkg = "rustc"
@@ -4033,6 +3975,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.i686-unknown-linux-gnu.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.i686-unknown-linux-gnu.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -4103,10 +4049,10 @@ target = "*"
 
 [pkg.rust.target.mips-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-mips-unknown-linux-gnu.tar.gz"
+hash = "58367b35ad5e35d76bb1435c262447f20fdc98dd2b0907c8a40f2659503698e6"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-mips-unknown-linux-gnu.tar.xz"
+xz_hash = "cdb3fb9af33e602df865c60ae9550b961c7c80ca3af83cb4a7ff5a305a6afba0"
 
 [[pkg.rust.target.mips-unknown-linux-gnu.components]]
 pkg = "rustc"
@@ -4404,6 +4350,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.mips-unknown-linux-gnu.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.mips-unknown-linux-gnu.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -4474,10 +4424,10 @@ target = "*"
 
 [pkg.rust.target.mips64-unknown-linux-gnuabi64]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-mips64-unknown-linux-gnuabi64.tar.gz"
+hash = "5dc73ba79d867e58880a9b6fdfa9eadba9089a29ea0e6bc5886797e79ee0cfa5"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-mips64-unknown-linux-gnuabi64.tar.xz"
+xz_hash = "526e4b9c550fc88e91ee3923486eb43d6414db090682072cbd0002920e3fe8c0"
 
 [[pkg.rust.target.mips64-unknown-linux-gnuabi64.components]]
 pkg = "rustc"
@@ -4775,6 +4725,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.mips64-unknown-linux-gnuabi64.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.mips64-unknown-linux-gnuabi64.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -4845,10 +4799,10 @@ target = "*"
 
 [pkg.rust.target.mips64el-unknown-linux-gnuabi64]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-mips64el-unknown-linux-gnuabi64.tar.gz"
+hash = "85126cd94bf624ccd882b56bb9ca6daf5ddc4134486c71990a7f3fece9a8a284"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-mips64el-unknown-linux-gnuabi64.tar.xz"
+xz_hash = "ad675a29aaeb5b062d81d8a42e01c8953aec1cd97c59276043221c2a97a4eb97"
 
 [[pkg.rust.target.mips64el-unknown-linux-gnuabi64.components]]
 pkg = "rustc"
@@ -5146,6 +5100,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.mips64el-unknown-linux-gnuabi64.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.mips64el-unknown-linux-gnuabi64.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -5216,10 +5174,10 @@ target = "*"
 
 [pkg.rust.target.mipsel-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-mipsel-unknown-linux-gnu.tar.gz"
+hash = "fb9c792b82d3034e5b4fa54ac299c0f5b8055fc3d0d030518d7ffa9f7524453b"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-mipsel-unknown-linux-gnu.tar.xz"
+xz_hash = "9fc97300545be647d3e6f2197d62f75e64c54f0f9eaf148444ef6798b8c6f053"
 
 [[pkg.rust.target.mipsel-unknown-linux-gnu.components]]
 pkg = "rustc"
@@ -5517,6 +5475,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.mipsel-unknown-linux-gnu.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.mipsel-unknown-linux-gnu.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -5599,10 +5561,10 @@ available = false
 
 [pkg.rust.target.powerpc-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-powerpc-unknown-linux-gnu.tar.gz"
+hash = "039b789c56e8877401e9f73cdcaf0270ff7cf8fd86ff923da78464e9480e90e6"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-powerpc-unknown-linux-gnu.tar.xz"
+xz_hash = "27bf5e917c9d7f27a4ef62d88cbd1375942f2b40f573c278bcf6be2b40b669c3"
 
 [[pkg.rust.target.powerpc-unknown-linux-gnu.components]]
 pkg = "rustc"
@@ -5900,6 +5862,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.powerpc-unknown-linux-gnu.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.powerpc-unknown-linux-gnu.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -5970,10 +5936,10 @@ target = "*"
 
 [pkg.rust.target.powerpc64-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-powerpc64-unknown-linux-gnu.tar.gz"
+hash = "65e6cb68fb26ca41817f3a823e1b40ce40c2deb4257802db2eaf8d05e668b392"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-powerpc64-unknown-linux-gnu.tar.xz"
+xz_hash = "5deb2894062de2768d1ee788b6f009464dec4ffe9bbed698b0de3481e4ed0809"
 
 [[pkg.rust.target.powerpc64-unknown-linux-gnu.components]]
 pkg = "rustc"
@@ -6271,6 +6237,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.powerpc64-unknown-linux-gnu.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.powerpc64-unknown-linux-gnu.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -6341,10 +6311,10 @@ target = "*"
 
 [pkg.rust.target.powerpc64le-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-powerpc64le-unknown-linux-gnu.tar.gz"
+hash = "cf8f4513e8c9850c2ff7f3547613903402b9f3f59641f6f058b2acc9d42965e5"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-powerpc64le-unknown-linux-gnu.tar.xz"
+xz_hash = "9bd96bc134536a022cac5371f4026f5c1c34b4da6be2a162c47f88dab4f80101"
 
 [[pkg.rust.target.powerpc64le-unknown-linux-gnu.components]]
 pkg = "rustc"
@@ -6642,6 +6612,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.powerpc64le-unknown-linux-gnu.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.powerpc64le-unknown-linux-gnu.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -6712,10 +6686,10 @@ target = "*"
 
 [pkg.rust.target.s390x-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-s390x-unknown-linux-gnu.tar.gz"
+hash = "c46d70b81fa7d0bc88a9061ef6f0977a57b6ee898a588cbed9b42566e6b22314"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-s390x-unknown-linux-gnu.tar.xz"
+xz_hash = "ee2bd7401c28336c64832894c781c1564a3888207f89f3db07a71ebc3253f92a"
 
 [[pkg.rust.target.s390x-unknown-linux-gnu.components]]
 pkg = "rustc"
@@ -7013,6 +6987,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.s390x-unknown-linux-gnu.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.s390x-unknown-linux-gnu.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -7083,10 +7061,10 @@ target = "*"
 
 [pkg.rust.target.x86_64-apple-darwin]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-x86_64-apple-darwin.tar.gz"
+hash = "227be55929e227252a9b5b2914875a5f28cde9a07c898891acffeda70530f135"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-x86_64-apple-darwin.tar.xz"
+xz_hash = "049521e4fb105f9bc2bc70e1a233715677b81d5af0e2c80ecd60bc297b2b5429"
 
 [[pkg.rust.target.x86_64-apple-darwin.components]]
 pkg = "rustc"
@@ -7392,6 +7370,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.x86_64-apple-darwin.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.x86_64-apple-darwin.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-ios"
@@ -7458,10 +7440,10 @@ target = "*"
 
 [pkg.rust.target.x86_64-pc-windows-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-x86_64-pc-windows-gnu.tar.gz"
+hash = "88e0e75d258216fc6ffc2ba5ede34dce2419e2a99c8db1a7b020034a585e86fc"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-x86_64-pc-windows-gnu.tar.xz"
+xz_hash = "27b25cf88e5fe3a3c230993f9730037cecdef3777b06e089cef0b36014b45786"
 
 [[pkg.rust.target.x86_64-pc-windows-gnu.components]]
 pkg = "rustc"
@@ -7771,6 +7753,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.x86_64-pc-windows-gnu.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.x86_64-pc-windows-gnu.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -7837,10 +7823,10 @@ target = "*"
 
 [pkg.rust.target.x86_64-pc-windows-msvc]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-x86_64-pc-windows-msvc.tar.gz"
+hash = "70813c66d5e882fca14e2120245b9f448d4887c61d99905dda011628420ff527"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-x86_64-pc-windows-msvc.tar.xz"
+xz_hash = "4e2d2cc8f1dc24add4e7d84169d176b2d901609dfa0b1b276d9480800cc0fe02"
 
 [[pkg.rust.target.x86_64-pc-windows-msvc.components]]
 pkg = "rustc"
@@ -8146,6 +8132,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.x86_64-pc-windows-msvc.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.x86_64-pc-windows-msvc.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -8212,10 +8202,10 @@ target = "*"
 
 [pkg.rust.target.x86_64-unknown-freebsd]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-x86_64-unknown-freebsd.tar.gz"
+hash = "c42e2a3b2f458423704ff9f262279b50d2cbbb5faa569c10a765b5aab908b75f"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-x86_64-unknown-freebsd.tar.xz"
+xz_hash = "903626089ec2581957e264808800d71ddd4ad2a113f16c84426dcdb8582249b5"
 
 [[pkg.rust.target.x86_64-unknown-freebsd.components]]
 pkg = "rustc"
@@ -8517,6 +8507,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.x86_64-unknown-freebsd.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.x86_64-unknown-freebsd.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -8583,10 +8577,10 @@ target = "*"
 
 [pkg.rust.target.x86_64-unknown-linux-gnu]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-x86_64-unknown-linux-gnu.tar.gz"
+hash = "5860387e65d7ff15edb7219bc138d2c35949bfa24717fcb6114400c5e5c0041b"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-x86_64-unknown-linux-gnu.tar.xz"
+xz_hash = "b3b071b339fc44670d600b0baa524c57bc7c09918e3d34466af19efcef0bd766"
 
 [[pkg.rust.target.x86_64-unknown-linux-gnu.components]]
 pkg = "rustc"
@@ -8892,6 +8886,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.x86_64-unknown-linux-gnu.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.x86_64-unknown-linux-gnu.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -8958,10 +8956,10 @@ target = "*"
 
 [pkg.rust.target.x86_64-unknown-linux-musl]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-x86_64-unknown-linux-musl.tar.gz"
+hash = "d55c5a95036f4bc02db11bee8759ae858601432a6ccf7ea10356ff1bc017b40a"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-x86_64-unknown-linux-musl.tar.xz"
+xz_hash = "da541d28de195e846de24fb3328a1b790aef483fbd77c030d9c729fda84e5660"
 
 [[pkg.rust.target.x86_64-unknown-linux-musl.components]]
 pkg = "rustc"
@@ -9263,6 +9261,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.x86_64-unknown-linux-musl.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.x86_64-unknown-linux-musl.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -9329,10 +9331,10 @@ target = "*"
 
 [pkg.rust.target.x86_64-unknown-netbsd]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-x86_64-unknown-netbsd.tar.gz"
+hash = "fb397a0eb2c88f5648119fd916596eb1a4bad4e82a18fadad2daefd8ed54b633"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-nightly-x86_64-unknown-netbsd.tar.xz"
+xz_hash = "7fb93e08da8d9d1d264706a1d8ad7147ed7d76438badbe2b3299ed30084794d3"
 
 [[pkg.rust.target.x86_64-unknown-netbsd.components]]
 pkg = "rustc"
@@ -9634,6 +9636,10 @@ target = "wasm32-unknown-emscripten"
 pkg = "rust-std"
 target = "wasm32-unknown-unknown"
 
+[[pkg.rust.target.x86_64-unknown-netbsd.extensions]]
+pkg = "rust-std"
+target = "wasm32-unknown-wasi"
+
 [[pkg.rust.target.x86_64-unknown-netbsd.extensions]]
 pkg = "rust-std"
 target = "x86_64-apple-darwin"
@@ -9699,69 +9705,69 @@ pkg = "rust-src"
 target = "*"
 
 [pkg.rust-analysis]
-version = "1.35.0-nightly (0633c55d2 2019-03-23)"
-git_commit_hash = "0633c55d2030969d91b57142b8582c53101e6339"
+version = "1.35.0-nightly (f69422288 2019-04-01)"
+git_commit_hash = "f694222887cf31f51e68927716c25736e62f037f"
 [pkg.rust-analysis.target.aarch64-apple-ios]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-analysis-nightly-aarch64-apple-ios.tar.gz"
+hash = "b9c745abdfd59f712328903515708647dd95ff6b9402100af4c7742c7ffcbc27"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-analysis-nightly-aarch64-apple-ios.tar.xz"
+xz_hash = "597b562894e506b2071f83217d9762bad4d991d22f2c4291d48bfbb1cb92ccfa"
 
 [pkg.rust-analysis.target.aarch64-fuchsia]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-analysis-nightly-aarch64-fuchsia.tar.gz"
+hash = "068da98c9c9cfe4ff2c543223f1e699c39efa256ecb8e1aaaad11bf48250e190"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-analysis-nightly-aarch64-fuchsia.tar.xz"
+xz_hash = "e22a6360c39776f9c72d7ac61bdc59413ad5881cab20f2aa31da2023eb2ef5c4"
 
 [pkg.rust-analysis.target.aarch64-linux-android]
 available = true
-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"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-analysis-nightly-aarch64-linux-android.tar.gz"
+hash = "f12b5b42a7f2d10f704d513a8b84f2265f4969a732876fe24823d2b0f1063a3a"
+xz_url = "https://static.rust-lang.org/dist/2019-04-02/rust-analysis-nightly-aarch64-linux-android.tar.xz"
+xz_hash = "8132ba25c7cfb65833dffcf9339bf6a43e200c6e21f16bb4c20a40f9417bd28f"
 
 [pkg.rust-analysis.target.aarch64-pc-windows-msvc]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-aarch64-pc-windows-msvc.tar.gz"
-hash = "b2caf0729cf094c4632dc98555b5608d87ae37fd044cbee5206934250cc23c4c"
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 [pkg.rust-analysis.target.aarch64-unknown-linux-musl]
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 [pkg.rust-analysis.target.arm-unknown-linux-musleabi]
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 [pkg.rust-analysis.target.armv7-unknown-linux-musleabihf]
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@@ -9813,121 +9819,121 @@ available = false
 
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 [pkg.rust-analysis.target.asmjs-unknown-emscripten]
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 [pkg.rust-analysis.target.mips-unknown-linux-musl]
 available = false
 
 [pkg.rust-analysis.target.mips64-unknown-linux-gnuabi64]
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-url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-mips64-unknown-linux-gnuabi64.tar.gz"
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 [pkg.rust-analysis.target.mips64el-unknown-linux-gnuabi64]
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-url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-mips64el-unknown-linux-gnuabi64.tar.gz"
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 [pkg.rust-analysis.target.mipsel-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-mipsel-unknown-linux-gnu.tar.gz"
-hash = "5c21d90ee1bb66fd412159b291293b2b211a41d416d936c1b5e02f40be385a8d"
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-xz_hash = "11de0dd03fccebabd56c585b200b2da0fae96ab78db2cf73143187882599a4f8"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-analysis-nightly-mipsel-unknown-linux-gnu.tar.gz"
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 [pkg.rust-analysis.target.mipsel-unknown-linux-musl]
 available = false
@@ -9946,31 +9952,31 @@ available = false
 
 [pkg.rust-analysis.target.nvptx64-nvidia-cuda]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-nvptx64-nvidia-cuda.tar.gz"
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-xz_hash = "462a79f863c4e7a0cc25b57b49e5eca7338172aa3d057d2627655012ae80eb6b"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-analysis-nightly-nvptx64-nvidia-cuda.tar.gz"
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 [pkg.rust-analysis.target.powerpc-unknown-linux-gnu]
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-url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-powerpc-unknown-linux-gnu.tar.gz"
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 [pkg.rust-analysis.target.powerpc64-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-powerpc64-unknown-linux-gnu.tar.gz"
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 [pkg.rust-analysis.target.powerpc64le-unknown-linux-gnu]
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-xz_hash = "4ac0da3bd163832db21f2d94e0e5bab63d0cf64d26164fe6e9f0101932b869ee"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-analysis-nightly-powerpc64le-unknown-linux-gnu.tar.gz"
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 [pkg.rust-analysis.target.riscv32imac-unknown-none-elf]
 available = false
@@ -9986,20 +9992,20 @@ available = false
 
 [pkg.rust-analysis.target.s390x-unknown-linux-gnu]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-s390x-unknown-linux-gnu.tar.gz"
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-xz_hash = "c5a1ab1eef3a39d82e7126ad28f8a976fae05fb17408684ede4d96304d2d866d"
+url = "https://static.rust-lang.org/dist/2019-04-02/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]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-sparcv9-sun-solaris.tar.gz"
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-xz_hash = "f594319816c635890177aa5a1029a1fd2d1b911e1aa83a991a9df2845306608e"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-analysis-nightly-sparcv9-sun-solaris.tar.gz"
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 [pkg.rust-analysis.target.thumbv6m-none-eabi]
 available = false
@@ -10015,10 +10021,10 @@ available = false
 
 [pkg.rust-analysis.target.thumbv7neon-linux-androideabi]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-thumbv7neon-linux-androideabi.tar.gz"
-hash = "c77b17ef2b9dc00b805ce629c8f93d6ad4dcb2b4b4bbc5d3277667e0bc49a9fb"
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-xz_hash = "50b8ff0f37dd6c9e3efb37057e6c4b55b238eb22698b18db949e1423846faa7d"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-analysis-nightly-thumbv7neon-linux-androideabi.tar.gz"
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 [pkg.rust-analysis.target.thumbv7neon-unknown-linux-gnueabihf]
 available = false
@@ -10031,486 +10037,493 @@ available = false
 
 [pkg.rust-analysis.target.wasm32-unknown-unknown]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-wasm32-unknown-unknown.tar.gz"
-hash = "d876cc4adfd2d32074e3938b2020aa6367cf07024e885fc172b282010f05d1f4"
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-xz_hash = "e54d7b2458697ba96bebb55a521b9e78982bed076d2052b0b78b3a9615b099c6"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-analysis-nightly-wasm32-unknown-unknown.tar.gz"
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+xz_hash = "d121d2684d884eacc1ffd20358209be25d2535dacbbde467c583083d70b38d31"
+
+[pkg.rust-analysis.target.wasm32-unknown-wasi]
+available = true
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-analysis-nightly-wasm32-unknown-wasi.tar.gz"
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 [pkg.rust-analysis.target.x86_64-apple-darwin]
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-url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-x86_64-apple-darwin.tar.gz"
-hash = "4af423e99ae9c7f2c92334e9f09d691e791a8f5310eb8cd63b65469409024ba3"
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-xz_hash = "5ba71cda7793479af59be4315e02fd7cb98bd14fb255bb8cfe1d15697a1c154d"
+url = "https://static.rust-lang.org/dist/2019-04-02/rust-analysis-nightly-x86_64-apple-darwin.tar.gz"
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 [pkg.rust-analysis.target.x86_64-apple-ios]
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 [pkg.rust-analysis.target.x86_64-fortanix-unknown-sgx]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-x86_64-fortanix-unknown-sgx.tar.gz"
-hash = "2d035317ecebb639aebfbb4584a0413f62ae4795fc9a392d0c4f69ce886113d0"
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 [pkg.rust-analysis.target.x86_64-fuchsia]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-x86_64-fuchsia.tar.gz"
-hash = "6233fce07cf3861f11028cb8fedbb05c869b68d93509a6a5fcbce0dd19752551"
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 [pkg.rust-analysis.target.x86_64-linux-android]
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+url = "https://static.rust-lang.org/dist/2019-04-02/rust-analysis-nightly-x86_64-linux-android.tar.gz"
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 [pkg.rust-analysis.target.x86_64-pc-windows-gnu]
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-url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-x86_64-pc-windows-gnu.tar.gz"
-hash = "9bcbc6f8a2833bde245692d9595c68a7ae8c1fb684b02dba91a46902fa39c43e"
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 [pkg.rust-analysis.target.x86_64-pc-windows-msvc]
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-url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-x86_64-pc-windows-msvc.tar.gz"
-hash = "3adb6789f54688d7645dbbbe32b30d867c7fcddb84a3cdd07eb0bcb192ff5717"
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 [pkg.rust-analysis.target.x86_64-rumprun-netbsd]
 available = false
 
 [pkg.rust-analysis.target.x86_64-sun-solaris]
 available = true
-url = "https://static.rust-lang.org/dist/2019-03-24/rust-analysis-nightly-x86_64-sun-solaris.tar.gz"
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 [pkg.rust-std.target.i686-unknown-linux-gnu]
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 [pkg.rust-std.target.mips-unknown-linux-musl]
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 [pkg.rust-std.target.mips64el-unknown-linux-gnuabi64]
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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]
 available = false
@@ -10526,342 +10539,349 @@ available = false
 
 [pkg.rust-std.target.nvptx64-nvidia-cuda]
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 [pkg.rust-std.target.powerpc-unknown-linux-gnu]
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 [pkg.rust-std.target.powerpc64-unknown-linux-gnu]
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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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 [pkg.rustc.target.mipsisa32r6-unknown-linux-gnu]
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@@ -10877,166 +10897,166 @@ 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-pc-windows-gnu]
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 [pkg.rustc.target.x86_64-unknown-linux-gnu]
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 [pkg.rustc.target.x86_64-unknown-linux-musl]
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 [pkg.rustc.target.x86_64-unknown-netbsd]
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 [pkg.rustfmt-preview]
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+version = "1.2.0-nightly (09940a70d 2019-03-27)"
 [pkg.rustfmt-preview.target.aarch64-unknown-linux-gnu]
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 [pkg.rustfmt-preview.target.arm-unknown-linux-gnueabi]
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 [pkg.rustfmt-preview.target.arm-unknown-linux-gnueabihf]
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 [pkg.rustfmt-preview.target.armv7-unknown-linux-gnueabihf]
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 [pkg.rustfmt-preview.target.mipsisa32r6-unknown-linux-gnu]
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 [pkg.rustfmt-preview.target.powerpc-unknown-linux-gnu]
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 [pkg.rustfmt-preview.target.x86_64-unknown-linux-gnu]
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 [pkg.rustfmt-preview.target.x86_64-unknown-netbsd]
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 [renames.clippy]
 to = "clippy-preview"