Aug 02 12:07:11.012 INFO checking crude-profiler-0.1.7 against 1.27.2 for lazy_static-1
Aug 02 12:07:11.012 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 12:07:11.012 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 12:07:11.012 INFO running `"docker" "create" "-v" "/tmp/crater.NNHg3XDJRdtO:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-0/1.27.2:/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 12:07:11.234 INFO blam! 50472c7f65e255b586874564389f132c585f8565ab0e46742b00d372d6151876
Aug 02 12:07:11.237 INFO running `"docker" "start" "-a" "50472c7f65e255b586874564389f132c585f8565ab0e46742b00d372d6151876"`
Aug 02 12:07:12.218 INFO kablam!     Checking crude-profiler v0.1.7 (file:///source)
Aug 02 12:07:13.994 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 12:07:13.994 INFO kablam!  --> benches/bench.rs:1:1
Aug 02 12:07:13.995 INFO kablam!   |
Aug 02 12:07:13.995 INFO kablam! 1 | #![feature(test)]
Aug 02 12:07:13.995 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 12:07:13.995 INFO kablam! 
Aug 02 12:07:13.995 INFO kablam! error: aborting due to previous error
Aug 02 12:07:13.995 INFO kablam! 
Aug 02 12:07:13.995 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 12:07:14.009 INFO kablam! error: Could not compile `crude-profiler`.
Aug 02 12:07:14.010 INFO kablam! 
Aug 02 12:07:14.010 INFO kablam! To learn more, run the command again with --verbose.
Aug 02 12:07:14.011 INFO kablam! su: No module specific data is present
Aug 02 12:07:14.543 INFO running `"docker" "rm" "-f" "50472c7f65e255b586874564389f132c585f8565ab0e46742b00d372d6151876"`
Aug 02 12:07:14.713 INFO blam! 50472c7f65e255b586874564389f132c585f8565ab0e46742b00d372d6151876