Aug 02 02:23:26.503 INFO checking pipelines-0.4.0 against 1.27.2 for lazy_static-1
Aug 02 02:23:26.503 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:23:26.503 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:23:26.503 INFO running `"docker" "create" "-v" "/tmp/crater.zdIr0fRk1F1I:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2:/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 02:23:26.714 INFO blam! cf6df2d532c050e1fdfb46591fe22b0d1110adb2880e74e2b212f804c6716065
Aug 02 02:23:26.719 INFO running `"docker" "start" "-a" "cf6df2d532c050e1fdfb46591fe22b0d1110adb2880e74e2b212f804c6716065"`
Aug 02 02:23:27.876 INFO kablam!     Checking pipelines v0.4.0 (file:///source)
Aug 02 02:23:30.061 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 02:23:30.061 INFO kablam!  --> benches/bench.rs:1:1
Aug 02 02:23:30.061 INFO kablam!   |
Aug 02 02:23:30.061 INFO kablam! 1 | #![feature(test)]
Aug 02 02:23:30.061 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 02:23:30.061 INFO kablam! 
Aug 02 02:23:30.062 INFO kablam! error: aborting due to previous error
Aug 02 02:23:30.062 INFO kablam! 
Aug 02 02:23:30.062 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 02:23:30.077 INFO kablam! error: Could not compile `pipelines`.
Aug 02 02:23:30.078 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 02:23:30.996 INFO kablam! error: build failed
Aug 02 02:23:30.998 INFO kablam! su: No module specific data is present
Aug 02 02:23:31.846 INFO running `"docker" "rm" "-f" "cf6df2d532c050e1fdfb46591fe22b0d1110adb2880e74e2b212f804c6716065"`
Aug 02 02:23:32.013 INFO blam! cf6df2d532c050e1fdfb46591fe22b0d1110adb2880e74e2b212f804c6716065