Aug 02 05:38:49.827 INFO checking libblas-sys-0.0.14 against 1.27.2 for lazy_static-1
Aug 02 05:38:49.827 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:38:49.827 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:38:49.827 INFO running `"docker" "create" "-v" "/tmp/crater.7I9SKZsMq9zH:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 02 05:38:50.082 INFO blam! 464eec3bdf563635d02179d8295efcd66922785f6dabc6ae1ff8846e1b0931b7
Aug 02 05:38:50.084 INFO running `"docker" "start" "-a" "464eec3bdf563635d02179d8295efcd66922785f6dabc6ae1ff8846e1b0931b7"`
Aug 02 05:38:51.664 INFO kablam!    Compiling libblas-sys v0.0.14 (file:///source)
Aug 02 05:38:51.997 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:38:51.997 INFO kablam!  --> build.rs:1:1
Aug 02 05:38:51.997 INFO kablam!   |
Aug 02 05:38:51.998 INFO kablam! 1 | #![feature(path)]
Aug 02 05:38:51.998 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 05:38:51.998 INFO kablam! 
Aug 02 05:38:51.998 INFO kablam! error: aborting due to previous error
Aug 02 05:38:51.998 INFO kablam! 
Aug 02 05:38:51.998 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 05:38:52.003 INFO kablam! error: Could not compile `libblas-sys`.
Aug 02 05:38:52.003 INFO kablam! 
Aug 02 05:38:52.003 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 05:38:52.007 INFO kablam! su: No module specific data is present
Aug 02 05:38:52.752 INFO running `"docker" "rm" "-f" "464eec3bdf563635d02179d8295efcd66922785f6dabc6ae1ff8846e1b0931b7"`
Aug 02 05:38:52.906 INFO blam! 464eec3bdf563635d02179d8295efcd66922785f6dabc6ae1ff8846e1b0931b7