Sep 01 09:12:15.656 INFO checking robin-derives-0.3.0 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 01 09:12:15.656 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 01 09:12:15.656 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-3/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/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 +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 09:12:15.788 INFO blam! 57750905540e682963c97820a87d13696c903cf66fc1cc8ef42c3c9370b4f6ef
Sep 01 09:12:15.789 INFO running `"docker" "start" "-a" "57750905540e682963c97820a87d13696c903cf66fc1cc8ef42c3c9370b4f6ef"`
Sep 01 09:12:16.484 INFO kablam!     Checking robin-derives v0.3.0 (file:///source)
Sep 01 09:12:19.087 INFO kablam! warning: function is never used: `underscore`
Sep 01 09:12:19.087 INFO kablam!    --> src/jobs.rs:111:1
Sep 01 09:12:19.087 INFO kablam!     |
Sep 01 09:12:19.087 INFO kablam! 111 | fn underscore(s: &str) -> String {
Sep 01 09:12:19.087 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 09:12:19.087 INFO kablam!     |
Sep 01 09:12:19.087 INFO kablam!     = note: #[warn(dead_code)] on by default
Sep 01 09:12:19.087 INFO kablam! 
Sep 01 09:12:19.158 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.70s
Sep 01 09:12:19.168 INFO kablam! su: No module specific data is present
Sep 01 09:12:19.822 INFO running `"docker" "rm" "-f" "57750905540e682963c97820a87d13696c903cf66fc1cc8ef42c3c9370b4f6ef"`
Sep 01 09:12:19.920 INFO blam! 57750905540e682963c97820a87d13696c903cf66fc1cc8ef42c3c9370b4f6ef