Oct 13 17:42:07.931 INFO checking binomial-iter-0.1.0 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 17:42:07.931 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-6/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-6/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 13 17:42:08.190 INFO blam! 86d96fa2ce2c7214fb9868871fdffda996fc483b24eaabfa610476b43ed893d6
Oct 13 17:42:08.193 INFO running `"docker" "start" "-a" "86d96fa2ce2c7214fb9868871fdffda996fc483b24eaabfa610476b43ed893d6"`
Oct 13 17:42:08.908 INFO kablam! usermod: no changes
Oct 13 17:42:08.972 INFO kablam!     Checking binomial-iter v0.1.0 (/source)
Oct 13 17:42:10.476 INFO kablam! warning: function is never used: `n_iter`
Oct 13 17:42:10.476 INFO kablam!  --> src/test.rs:8:1
Oct 13 17:42:10.476 INFO kablam!   |
Oct 13 17:42:10.476 INFO kablam! 8 | fn n_iter() {
Oct 13 17:42:10.476 INFO kablam!   | ^^^^^^^^^^^
Oct 13 17:42:10.476 INFO kablam!   |
Oct 13 17:42:10.476 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 13 17:42:10.476 INFO kablam! 
Oct 13 17:42:10.521 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.59s
Oct 13 17:42:10.524 INFO kablam! su: No module specific data is present
Oct 13 17:42:11.449 INFO running `"docker" "rm" "-f" "86d96fa2ce2c7214fb9868871fdffda996fc483b24eaabfa610476b43ed893d6"`
Oct 13 17:42:11.748 INFO blam! 86d96fa2ce2c7214fb9868871fdffda996fc483b24eaabfa610476b43ed893d6