Sep 17 18:48:17.870 INFO checking robin-derives-0.3.0 against try#cfeeefe83c83bceb55d60d7e2be173db7597ed50 for pr-54033
Sep 17 18:48:17.870 INFO running: cargo +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets
Sep 17 18:48:17.870 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54033/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-6/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/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 +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 17 18:48:18.032 INFO blam! 2c9797de1be95665007705b9a351b7a6d34c3dd92af8c47229a60a2296f0584d
Sep 17 18:48:18.034 INFO running `"docker" "start" "-a" "2c9797de1be95665007705b9a351b7a6d34c3dd92af8c47229a60a2296f0584d"`
Sep 17 18:48:18.582 INFO kablam! usermod: no changes
Sep 17 18:48:18.639 INFO kablam!     Checking robin-derives v0.3.0 (/source)
Sep 17 18:48:19.803 INFO kablam! warning: function is never used: `underscore`
Sep 17 18:48:19.803 INFO kablam!    --> src/jobs.rs:111:1
Sep 17 18:48:19.803 INFO kablam!     |
Sep 17 18:48:19.803 INFO kablam! 111 | fn underscore(s: &str) -> String {
Sep 17 18:48:19.803 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 17 18:48:19.803 INFO kablam!     |
Sep 17 18:48:19.803 INFO kablam!     = note: #[warn(dead_code)] on by default
Sep 17 18:48:19.803 INFO kablam! 
Sep 17 18:48:19.913 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
Sep 17 18:48:19.918 INFO kablam! su: No module specific data is present
Sep 17 18:48:20.488 INFO running `"docker" "rm" "-f" "2c9797de1be95665007705b9a351b7a6d34c3dd92af8c47229a60a2296f0584d"`
Sep 17 18:48:20.752 INFO blam! 2c9797de1be95665007705b9a351b7a6d34c3dd92af8c47229a60a2296f0584d