Aug 02 06:17:27.509 INFO checking jobpool-0.3.8 against 1.27.2+tmplazy for lazy_static-1
Aug 02 06:17:27.509 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 06:17:27.510 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 06:17:27.510 INFO running `"docker" "create" "-v" "/tmp/crater.X6isPLt5DQJX:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2+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 02 06:17:27.662 INFO blam! f7ad948a046d6485ba76c9eec87e528a60460f8e6dc8de1e4bf2226538cf9128
Aug 02 06:17:27.664 INFO running `"docker" "start" "-a" "f7ad948a046d6485ba76c9eec87e528a60460f8e6dc8de1e4bf2226538cf9128"`
Aug 02 06:17:29.137 INFO kablam!     Checking jobpool v0.3.8 (file:///source)
Aug 02 06:17:31.289 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 06:17:31.289 INFO kablam!  --> benches/queue.rs:1:1
Aug 02 06:17:31.289 INFO kablam!   |
Aug 02 06:17:31.289 INFO kablam! 1 | #![feature(test)]
Aug 02 06:17:31.289 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 06:17:31.289 INFO kablam! 
Aug 02 06:17:31.289 INFO kablam! error: aborting due to previous error
Aug 02 06:17:31.289 INFO kablam! 
Aug 02 06:17:31.289 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 06:17:31.295 INFO kablam! error: Could not compile `jobpool`.
Aug 02 06:17:31.296 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 06:17:31.458 INFO kablam! error: build failed
Aug 02 06:17:31.460 INFO kablam! su: No module specific data is present
Aug 02 06:17:32.562 INFO running `"docker" "rm" "-f" "f7ad948a046d6485ba76c9eec87e528a60460f8e6dc8de1e4bf2226538cf9128"`
Aug 02 06:17:32.708 INFO blam! f7ad948a046d6485ba76c9eec87e528a60460f8e6dc8de1e4bf2226538cf9128