Aug 02 11:07:53.737 INFO checking dwt-0.3.1 against 1.27.2 for lazy_static-1
Aug 02 11:07:53.737 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 11:07:53.737 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 11:07:53.737 INFO running `"docker" "create" "-v" "/tmp/crater.NfkqDmpYsmdb:/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 11:07:53.980 INFO blam! 3d6ab892b8125e28fad59b1c0589f0f2403551b85566d546c919ce5b12b3cddb
Aug 02 11:07:53.983 INFO running `"docker" "start" "-a" "3d6ab892b8125e28fad59b1c0589f0f2403551b85566d546c919ce5b12b3cddb"`
Aug 02 11:07:55.274 INFO kablam!     Checking assert v0.6.1
Aug 02 11:07:55.278 INFO kablam!     Checking dwt v0.3.1 (file:///source)
Aug 02 11:07:57.283 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 11:07:57.283 INFO kablam!  --> benches/lib.rs:1:1
Aug 02 11:07:57.283 INFO kablam!   |
Aug 02 11:07:57.283 INFO kablam! 1 | #![feature(test)]
Aug 02 11:07:57.283 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 11:07:57.283 INFO kablam! 
Aug 02 11:07:57.284 INFO kablam! error: aborting due to previous error
Aug 02 11:07:57.284 INFO kablam! 
Aug 02 11:07:57.285 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 11:07:57.291 INFO kablam! error: Could not compile `dwt`.
Aug 02 11:07:57.291 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 11:07:57.430 INFO kablam! error: build failed
Aug 02 11:07:57.431 INFO kablam! su: No module specific data is present
Aug 02 11:07:58.345 INFO running `"docker" "rm" "-f" "3d6ab892b8125e28fad59b1c0589f0f2403551b85566d546c919ce5b12b3cddb"`
Aug 02 11:07:58.484 INFO blam! 3d6ab892b8125e28fad59b1c0589f0f2403551b85566d546c919ce5b12b3cddb