Aug 01 23:25:52.734 INFO checking rustc-rayon-core-0.1.1 against 1.27.2 for lazy_static-1
Aug 01 23:25:52.734 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:25:52.734 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 23:25:52.734 INFO running `"docker" "create" "-v" "/tmp/crater.5ruytV9XlV2u:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2:/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 01 23:25:52.998 INFO blam! 82ed6329e3dced425bb68098c78c5ee328c40c4f776007e0b1bdc5a93779fae2
Aug 01 23:25:53.001 INFO running `"docker" "start" "-a" "82ed6329e3dced425bb68098c78c5ee328c40c4f776007e0b1bdc5a93779fae2"`
Aug 01 23:25:54.171 INFO kablam!    Compiling rustc-rayon-core v0.1.1 (file:///source)
Aug 01 23:25:55.969 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 23:25:55.969 INFO kablam!   --> src/lib.rs:23:19
Aug 01 23:25:55.969 INFO kablam!    |
Aug 01 23:25:55.969 INFO kablam! 23 | #![cfg_attr(test, feature(conservative_impl_trait))]
Aug 01 23:25:55.970 INFO kablam!    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 01 23:25:55.970 INFO kablam! 
Aug 01 23:25:55.985 INFO kablam! error: aborting due to previous error
Aug 01 23:25:55.985 INFO kablam! 
Aug 01 23:25:55.985 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 23:25:55.994 INFO kablam! error: Could not compile `rustc-rayon-core`.
Aug 01 23:25:55.994 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 23:25:57.031 INFO kablam! error: build failed
Aug 01 23:25:57.041 INFO kablam! su: No module specific data is present
Aug 01 23:25:57.611 INFO running `"docker" "rm" "-f" "82ed6329e3dced425bb68098c78c5ee328c40c4f776007e0b1bdc5a93779fae2"`
Aug 01 23:25:57.783 INFO blam! 82ed6329e3dced425bb68098c78c5ee328c40c4f776007e0b1bdc5a93779fae2