diff --git a/appveyor.yml b/appveyor.yml
index 4bb03de..5cf0b48 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -18,7 +18,6 @@ test_script:
   - cargo test
   - cargo test --release
   - CALL "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat"
-  - dumpbin /disasm target/debug/librustc_builtins.rlib || exit 0
   - dumpbin /disasm target/release/librustc_builtins.rlib || exit 0
 
 branches:
diff --git a/ci/script.sh b/ci/script.sh
index 7558478..84e7ee7 100644
--- a/ci/script.sh
+++ b/ci/script.sh
@@ -11,7 +11,6 @@ inspect() {
     $PREFIX$NM -g --defined-only target/**/debug/*.rlib
 
     set +e
-    $PREFIX$OBJDUMP -Cd target/**/debug/*.rlib
     $PREFIX$OBJDUMP -Cd target/**/release/*.rlib
     set -e