Nov 28 04:18:55.992 INFO checking howeih/Day-41-Union-Find against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 28 04:18:55.992 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-6/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 28 04:18:56.363 INFO [stdout] 28ccee9ae9359bdb2bff8e16e40f63d781048f275213d8ae8bd00e56dabd6c2d
Nov 28 04:18:56.366 INFO running `"docker" "start" "-a" "28ccee9ae9359bdb2bff8e16e40f63d781048f275213d8ae8bd00e56dabd6c2d"`
Nov 28 04:18:57.239 INFO [stderr] usermod: no changes
Nov 28 04:18:57.271 INFO [stderr]     Checking union_find v0.1.0 (/source)
Nov 28 04:18:57.529 INFO [stderr] warning: unused import: `std::iter::Iterator`
Nov 28 04:18:57.529 INFO [stderr]  --> src/main.rs:2:5
Nov 28 04:18:57.529 INFO [stderr]   |
Nov 28 04:18:57.529 INFO [stderr] 2 | use std::iter::Iterator;
Nov 28 04:18:57.529 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Nov 28 04:18:57.529 INFO [stderr]   |
Nov 28 04:18:57.529 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 04:18:57.529 INFO [stderr] 
Nov 28 04:18:57.580 INFO [stderr] warning: unused import: `std::iter::Iterator`
Nov 28 04:18:57.580 INFO [stderr]  --> src/main.rs:2:5
Nov 28 04:18:57.580 INFO [stderr]   |
Nov 28 04:18:57.580 INFO [stderr] 2 | use std::iter::Iterator;
Nov 28 04:18:57.580 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Nov 28 04:18:57.580 INFO [stderr]   |
Nov 28 04:18:57.580 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 04:18:57.580 INFO [stderr] 
Nov 28 04:18:57.639 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
Nov 28 04:18:57.642 INFO [stderr] su: No module specific data is present
Nov 28 04:18:57.957 INFO running `"docker" "inspect" "28ccee9ae9359bdb2bff8e16e40f63d781048f275213d8ae8bd00e56dabd6c2d"`
Nov 28 04:18:58.078 INFO running `"docker" "rm" "-f" "28ccee9ae9359bdb2bff8e16e40f63d781048f275213d8ae8bd00e56dabd6c2d"`
Nov 28 04:18:58.249 INFO [stdout] 28ccee9ae9359bdb2bff8e16e40f63d781048f275213d8ae8bd00e56dabd6c2d