Aug 02 04:34:17.570 INFO checking md2-0.7.0 against 1.27.2 for lazy_static-1
Aug 02 04:34:17.570 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 04:34:17.570 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 04:34:17.571 INFO running `"docker" "create" "-v" "/tmp/crater.lp23xaCZxxXU:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-1/1.27.2:/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 04:34:17.810 INFO blam! ab993c86cfdcdb35b9c754597417574499ea88222243992c52f3969608ed8080
Aug 02 04:34:17.813 INFO running `"docker" "start" "-a" "ab993c86cfdcdb35b9c754597417574499ea88222243992c52f3969608ed8080"`
Aug 02 04:34:18.763 INFO kablam!     Checking md2 v0.7.0 (file:///source)
Aug 02 04:34:21.016 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 04:34:21.016 INFO kablam!  --> benches/lib.rs:2:1
Aug 02 04:34:21.016 INFO kablam!   |
Aug 02 04:34:21.016 INFO kablam! 2 | #![feature(test)]
Aug 02 04:34:21.016 INFO kablam!   | ^^^^^^^^^^^^^^^^^
Aug 02 04:34:21.016 INFO kablam! 
Aug 02 04:34:21.017 INFO kablam! error: aborting due to previous error
Aug 02 04:34:21.017 INFO kablam! 
Aug 02 04:34:21.018 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 04:34:21.035 INFO kablam! error: Could not compile `md2`.
Aug 02 04:34:21.036 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 04:34:21.675 INFO kablam! error: build failed
Aug 02 04:34:21.675 INFO kablam! su: No module specific data is present
Aug 02 04:34:22.260 INFO running `"docker" "rm" "-f" "ab993c86cfdcdb35b9c754597417574499ea88222243992c52f3969608ed8080"`
Aug 02 04:34:22.418 INFO blam! ab993c86cfdcdb35b9c754597417574499ea88222243992c52f3969608ed8080