Sep 04 23:07:12.724 INFO checking bit_collection-0.2.3 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 23:07:12.724 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 23:07:12.725 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-1/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/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" "-e" "USER_ID=500" "-e" "CMD=cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 23:07:12.917 INFO blam! df365c0d861cee3bf3077a21251df44ba45247bf4aed0b725587f49b21bc12aa
Sep 04 23:07:12.919 INFO running `"docker" "start" "-a" "df365c0d861cee3bf3077a21251df44ba45247bf4aed0b725587f49b21bc12aa"`
Sep 04 23:07:13.564 INFO kablam!    Compiling bit_collection_derive v0.2.2
Sep 04 23:07:18.471 INFO kablam!     Checking bit_collection v0.2.3 (file:///source)
Sep 04 23:07:20.680 INFO kablam! warning: unused `#[macro_use]` import
Sep 04 23:07:20.680 INFO kablam!  --> tests/derive.rs:3:1
Sep 04 23:07:20.680 INFO kablam!   |
Sep 04 23:07:20.680 INFO kablam! 3 | #[macro_use]
Sep 04 23:07:20.680 INFO kablam!   | ^^^^^^^^^^^^
Sep 04 23:07:20.681 INFO kablam!   |
Sep 04 23:07:20.681 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 04 23:07:20.681 INFO kablam! 
Sep 04 23:07:21.462 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 7.93s
Sep 04 23:07:21.467 INFO kablam! su: No module specific data is present
Sep 04 23:07:21.925 INFO running `"docker" "rm" "-f" "df365c0d861cee3bf3077a21251df44ba45247bf4aed0b725587f49b21bc12aa"`
Sep 04 23:07:22.028 INFO blam! df365c0d861cee3bf3077a21251df44ba45247bf4aed0b725587f49b21bc12aa