Aug 02 05:37:37.406 INFO checking libcgroup-0.3.0 against 1.27.2 for lazy_static-1
Aug 02 05:37:37.406 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:37:37.406 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:37:37.406 INFO running `"docker" "create" "-v" "/tmp/crater.SVLesbzgH46M:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2:/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 05:37:37.607 INFO blam! 1bd2d945a8f6c906ae6d9db6e190334955247136561d8ba2725f2b56f12ceffa
Aug 02 05:37:37.609 INFO running `"docker" "start" "-a" "1bd2d945a8f6c906ae6d9db6e190334955247136561d8ba2725f2b56f12ceffa"`
Aug 02 05:37:38.405 INFO kablam!    Compiling libcgroup-sys v0.3.0
Aug 02 05:37:40.107 INFO kablam!     Checking libcgroup v0.3.0 (file:///source)
Aug 02 05:37:41.712 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:37:41.712 INFO kablam!  --> benches/lib.rs:1:1
Aug 02 05:37:41.712 INFO kablam!   |
Aug 02 05:37:41.712 INFO kablam! 1 | #![feature(test)]
Aug 02 05:37:41.712 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 05:37:41.713 INFO kablam! 
Aug 02 05:37:41.713 INFO kablam! error: aborting due to previous error
Aug 02 05:37:41.713 INFO kablam! 
Aug 02 05:37:41.713 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 05:37:41.725 INFO kablam! error: Could not compile `libcgroup`.
Aug 02 05:37:41.725 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 05:37:42.058 INFO kablam! error: build failed
Aug 02 05:37:42.059 INFO kablam! su: No module specific data is present
Aug 02 05:37:42.615 INFO running `"docker" "rm" "-f" "1bd2d945a8f6c906ae6d9db6e190334955247136561d8ba2725f2b56f12ceffa"`
Aug 02 05:37:42.750 INFO blam! 1bd2d945a8f6c906ae6d9db6e190334955247136561d8ba2725f2b56f12ceffa