Aug 01 20:02:13.108 INFO checking tripcode-0.2.1 against 1.27.2 for lazy_static-1
Aug 01 20:02:13.108 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:02:13.108 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 01 20:02:13.108 INFO running `"docker" "create" "-v" "/tmp/crater.0zY4akSutbDi:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-6/1.27.2:/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 01 20:02:13.351 INFO blam! 4058a34301a02d9ed57c57ec0d446c981afd85c50e187fa297222084c4fd9a3d
Aug 01 20:02:13.358 INFO running `"docker" "start" "-a" "4058a34301a02d9ed57c57ec0d446c981afd85c50e187fa297222084c4fd9a3d"`
Aug 01 20:02:14.443 INFO kablam!     Checking tripcode v0.2.1 (file:///source)
Aug 01 20:02:17.457 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 01 20:02:17.457 INFO kablam!   --> benches/bench.rs:10:1
Aug 01 20:02:17.458 INFO kablam!    |
Aug 01 20:02:17.458 INFO kablam! 10 | #![feature(test)]
Aug 01 20:02:17.458 INFO kablam!    | ^^^^^^^^^^^^^^^^^
Aug 01 20:02:17.458 INFO kablam! 
Aug 01 20:02:17.458 INFO kablam! error: aborting due to previous error
Aug 01 20:02:17.458 INFO kablam! 
Aug 01 20:02:17.458 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 01 20:02:17.464 INFO kablam! error: Could not compile `tripcode`.
Aug 01 20:02:17.465 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 01 20:02:19.348 INFO kablam! error: build failed
Aug 01 20:02:19.349 INFO kablam! su: No module specific data is present
Aug 01 20:02:19.924 INFO running `"docker" "rm" "-f" "4058a34301a02d9ed57c57ec0d446c981afd85c50e187fa297222084c4fd9a3d"`
Aug 01 20:02:20.106 INFO blam! 4058a34301a02d9ed57c57ec0d446c981afd85c50e187fa297222084c4fd9a3d