Aug 01 23:25:52.372 INFO checking rustc-rayon-core-0.1.1 against 1.27.2+tmplazy for lazy_static-1
Aug 01 23:25:52.372 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:25:52.372 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:25:52.372 INFO running `"docker" "create" "-v" "/tmp/crater.6KyFS6zTxZhR:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2+tmplazy:/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 01 23:25:52.631 INFO blam! 644a4e91762beb9f136aa72cdad492fd726df059bb6f06438ddd4ebd4f584f29
Aug 01 23:25:52.633 INFO running `"docker" "start" "-a" "644a4e91762beb9f136aa72cdad492fd726df059bb6f06438ddd4ebd4f584f29"`
Aug 01 23:25:53.735 INFO kablam!    Compiling rustc-rayon-core v0.1.1 (file:///source)
Aug 01 23:25:55.544 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:25:55.544 INFO kablam!   --> src/lib.rs:23:19
Aug 01 23:25:55.544 INFO kablam!    |
Aug 01 23:25:55.544 INFO kablam! 23 | #![cfg_attr(test, feature(conservative_impl_trait))]
Aug 01 23:25:55.544 INFO kablam!    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:25:55.544 INFO kablam! 
Aug 01 23:25:55.587 INFO kablam! error: aborting due to previous error
Aug 01 23:25:55.592 INFO kablam! 
Aug 01 23:25:55.593 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 23:25:55.612 INFO kablam! error: Could not compile `rustc-rayon-core`.
Aug 01 23:25:55.613 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 23:25:56.683 INFO kablam! error: build failed
Aug 01 23:25:56.685 INFO kablam! su: No module specific data is present
Aug 01 23:25:57.239 INFO running `"docker" "rm" "-f" "644a4e91762beb9f136aa72cdad492fd726df059bb6f06438ddd4ebd4f584f29"`
Aug 01 23:25:57.419 INFO blam! 644a4e91762beb9f136aa72cdad492fd726df059bb6f06438ddd4ebd4f584f29