Sep 06 01:21:34.978 INFO checking robin-derives-0.3.0 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 01:21:34.978 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 01:21:34.978 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-1/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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=1000" "-e" "CMD=cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 01:21:35.116 INFO blam! 225642bafa3eabbf7c25298113a82ec3107ebc19d145e8435dfc0bdebd190556
Sep 06 01:21:35.117 INFO running `"docker" "start" "-a" "225642bafa3eabbf7c25298113a82ec3107ebc19d145e8435dfc0bdebd190556"`
Sep 06 01:21:35.649 INFO kablam! usermod: no changes
Sep 06 01:21:35.697 INFO kablam!     Checking robin-derives v0.3.0 (file:///source)
Sep 06 01:21:36.642 INFO kablam! warning: function is never used: `underscore`
Sep 06 01:21:36.642 INFO kablam!    --> src/jobs.rs:111:1
Sep 06 01:21:36.642 INFO kablam!     |
Sep 06 01:21:36.642 INFO kablam! 111 | fn underscore(s: &str) -> String {
Sep 06 01:21:36.642 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 06 01:21:36.642 INFO kablam!     |
Sep 06 01:21:36.642 INFO kablam!     = note: #[warn(dead_code)] on by default
Sep 06 01:21:36.642 INFO kablam! 
Sep 06 01:21:36.722 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
Sep 06 01:21:36.724 INFO kablam! su: No module specific data is present
Sep 06 01:21:37.316 INFO running `"docker" "rm" "-f" "225642bafa3eabbf7c25298113a82ec3107ebc19d145e8435dfc0bdebd190556"`
Sep 06 01:21:37.410 INFO blam! 225642bafa3eabbf7c25298113a82ec3107ebc19d145e8435dfc0bdebd190556