Aug 02 05:41:39.248 INFO checking lettre-0.8.2 against 1.27.2 for lazy_static-1
Aug 02 05:41:39.248 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:41:39.248 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 05:41:39.248 INFO running `"docker" "create" "-v" "/tmp/crater.6QrYnIhDrQUd:/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 02 05:41:39.535 INFO blam! 72d443493c3172927f296ae9a8148345806dc5dffa45a4fc3de5ed693ef73396
Aug 02 05:41:39.537 INFO running `"docker" "start" "-a" "72d443493c3172927f296ae9a8148345806dc5dffa45a4fc3de5ed693ef73396"`
Aug 02 05:41:40.739 INFO kablam!     Checking md-5 v0.7.0
Aug 02 05:41:41.461 INFO kablam!     Checking lettre v0.8.2 (file:///source)
Aug 02 05:42:01.909 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 05:42:01.909 INFO kablam!  --> benches/transport_smtp.rs:1:1
Aug 02 05:42:01.909 INFO kablam!   |
Aug 02 05:42:01.909 INFO kablam! 1 | #![feature(test)]
Aug 02 05:42:01.909 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 05:42:01.920 INFO kablam! 
Aug 02 05:42:01.921 INFO kablam! error: aborting due to previous error
Aug 02 05:42:01.921 INFO kablam! 
Aug 02 05:42:01.921 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 05:42:01.961 INFO kablam! error: Could not compile `lettre`.
Aug 02 05:42:01.961 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 05:42:02.575 INFO kablam! error: build failed
Aug 02 05:42:02.578 INFO kablam! su: No module specific data is present
Aug 02 05:42:03.162 INFO running `"docker" "rm" "-f" "72d443493c3172927f296ae9a8148345806dc5dffa45a4fc3de5ed693ef73396"`
Aug 02 05:42:03.318 INFO blam! 72d443493c3172927f296ae9a8148345806dc5dffa45a4fc3de5ed693ef73396