Aug 02 04:29:46.849 INFO checking memchr-2.0.1 against 1.27.2 for lazy_static-1
Aug 02 04:29:46.849 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 04:29:46.849 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 04:29:46.849 INFO running `"docker" "create" "-v" "/tmp/crater.FDHk4wBKyc4X:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2:/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 04:29:47.089 INFO blam! acf28341604af0b9b7adb29dc8b6f131a072523c7307f50313160a858e82e26c
Aug 02 04:29:47.089 INFO running `"docker" "start" "-a" "acf28341604af0b9b7adb29dc8b6f131a072523c7307f50313160a858e82e26c"`
Aug 02 04:29:48.270 INFO kablam!     Checking memchr v2.0.1 (file:///source)
Aug 02 04:29:48.277 INFO kablam!     Checking quickcheck v0.5.0
Aug 02 04:29:50.918 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 04:29:50.918 INFO kablam!  --> benches/bench.rs:1:1
Aug 02 04:29:50.918 INFO kablam!   |
Aug 02 04:29:50.918 INFO kablam! 1 | #![feature(test)]
Aug 02 04:29:50.918 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 04:29:50.918 INFO kablam! 
Aug 02 04:29:50.918 INFO kablam! error: aborting due to previous error
Aug 02 04:29:50.918 INFO kablam! 
Aug 02 04:29:50.918 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 04:29:50.925 INFO kablam! error: Could not compile `memchr`.
Aug 02 04:29:50.925 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 04:29:52.266 INFO kablam! error: build failed
Aug 02 04:29:52.268 INFO kablam! su: No module specific data is present
Aug 02 04:29:53.078 INFO running `"docker" "rm" "-f" "acf28341604af0b9b7adb29dc8b6f131a072523c7307f50313160a858e82e26c"`
Aug 02 04:29:53.276 INFO blam! acf28341604af0b9b7adb29dc8b6f131a072523c7307f50313160a858e82e26c