Dec 11 17:21:49.749 INFO checking howeih/Day-41-Union-Find against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 17:21:49.749 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-6/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 11 17:21:50.172 INFO [stdout] 8500aac63aa91de423079ec287a7affa429c6b2ca8a72069b7cc2d7f2581653e
Dec 11 17:21:50.188 INFO running `"docker" "start" "-a" "8500aac63aa91de423079ec287a7affa429c6b2ca8a72069b7cc2d7f2581653e"`
Dec 11 17:21:50.703 INFO [stderr] usermod: no changes
Dec 11 17:21:50.739 INFO [stderr]     Checking union_find v0.1.0 (/source)
Dec 11 17:21:51.032 INFO [stderr] warning: unused import: `std::iter::Iterator`
Dec 11 17:21:51.032 INFO [stderr]  --> src/main.rs:2:5
Dec 11 17:21:51.032 INFO [stderr]   |
Dec 11 17:21:51.032 INFO [stderr] 2 | use std::iter::Iterator;
Dec 11 17:21:51.032 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 11 17:21:51.032 INFO [stderr]   |
Dec 11 17:21:51.032 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 17:21:51.032 INFO [stderr] 
Dec 11 17:21:51.057 INFO [stderr] warning: unused import: `std::iter::Iterator`
Dec 11 17:21:51.057 INFO [stderr]  --> src/main.rs:2:5
Dec 11 17:21:51.057 INFO [stderr]   |
Dec 11 17:21:51.057 INFO [stderr] 2 | use std::iter::Iterator;
Dec 11 17:21:51.057 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 11 17:21:51.057 INFO [stderr]   |
Dec 11 17:21:51.057 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 17:21:51.057 INFO [stderr] 
Dec 11 17:21:51.118 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
Dec 11 17:21:51.120 INFO [stderr] su: No module specific data is present
Dec 11 17:21:51.849 INFO running `"docker" "inspect" "8500aac63aa91de423079ec287a7affa429c6b2ca8a72069b7cc2d7f2581653e"`
Dec 11 17:21:51.974 INFO running `"docker" "rm" "-f" "8500aac63aa91de423079ec287a7affa429c6b2ca8a72069b7cc2d7f2581653e"`
Dec 11 17:21:52.176 INFO [stdout] 8500aac63aa91de423079ec287a7affa429c6b2ca8a72069b7cc2d7f2581653e