Nov 07 10:01:50.981 INFO checking robin-derives-0.3.0 against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 07 10:01:50.981 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-2/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +24e66c28980442a48d9458f1a4f9b76cc722dc8a-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 07 10:01:51.288 INFO blam! d43a9ab4e778357e495f78cd36953524b7dc502114984b90c79cd38ca3685b54
Nov 07 10:01:51.306 INFO running `"docker" "start" "-a" "d43a9ab4e778357e495f78cd36953524b7dc502114984b90c79cd38ca3685b54"`
Nov 07 10:01:51.816 INFO kablam! usermod: no changes
Nov 07 10:01:51.868 INFO kablam!     Checking robin-derives v0.3.0 (/source)
Nov 07 10:01:55.760 INFO kablam! warning: function is never used: `underscore`
Nov 07 10:01:55.760 INFO kablam!    --> src/jobs.rs:111:1
Nov 07 10:01:55.760 INFO kablam!     |
Nov 07 10:01:55.760 INFO kablam! 111 | fn underscore(s: &str) -> String {
Nov 07 10:01:55.760 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 07 10:01:55.760 INFO kablam!     |
Nov 07 10:01:55.760 INFO kablam!     = note: #[warn(dead_code)] on by default
Nov 07 10:01:55.760 INFO kablam! 
Nov 07 10:01:55.794 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.96s
Nov 07 10:01:55.796 INFO kablam! su: No module specific data is present
Nov 07 10:01:56.226 INFO running `"docker" "rm" "-f" "d43a9ab4e778357e495f78cd36953524b7dc502114984b90c79cd38ca3685b54"`
Nov 07 10:01:56.416 INFO blam! d43a9ab4e778357e495f78cd36953524b7dc502114984b90c79cd38ca3685b54