Sep 21 04:31:19.180 INFO checking robin-derives-0.3.0 against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 21 04:31:19.180 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 21 04:31:19.180 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-4/master#f7f4c500b46603386e940f116b469c7adc043a6d:/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 +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 04:31:19.331 INFO blam! 9b0d8cb777fd36a63228629a2830c6238461e4467627b11eb59ccc7d93d72b16
Sep 21 04:31:19.333 INFO running `"docker" "start" "-a" "9b0d8cb777fd36a63228629a2830c6238461e4467627b11eb59ccc7d93d72b16"`
Sep 21 04:31:20.011 INFO kablam! usermod: no changes
Sep 21 04:31:20.061 INFO kablam!     Checking robin-derives v0.3.0 (/source)
Sep 21 04:31:21.066 INFO kablam! warning: function is never used: `underscore`
Sep 21 04:31:21.066 INFO kablam!    --> src/jobs.rs:111:1
Sep 21 04:31:21.066 INFO kablam!     |
Sep 21 04:31:21.066 INFO kablam! 111 | fn underscore(s: &str) -> String {
Sep 21 04:31:21.066 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 21 04:31:21.066 INFO kablam!     |
Sep 21 04:31:21.066 INFO kablam!     = note: #[warn(dead_code)] on by default
Sep 21 04:31:21.066 INFO kablam! 
Sep 21 04:31:21.210 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
Sep 21 04:31:21.212 INFO kablam! su: No module specific data is present
Sep 21 04:31:21.736 INFO running `"docker" "rm" "-f" "9b0d8cb777fd36a63228629a2830c6238461e4467627b11eb59ccc7d93d72b16"`
Sep 21 04:31:21.830 INFO blam! 9b0d8cb777fd36a63228629a2830c6238461e4467627b11eb59ccc7d93d72b16