Dec 05 21:36:11.018 INFO testing howeih/Day-41-Union-Find against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 05 21:36:11.019 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt build --frozen" "-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 05 21:36:11.168 INFO [stdout] 7702f0b1d1821fc737e634a23510ad70fa0e7798d4f6f9ba2b4f342e62934c98
Dec 05 21:36:11.173 INFO running `"docker" "start" "-a" "7702f0b1d1821fc737e634a23510ad70fa0e7798d4f6f9ba2b4f342e62934c98"`
Dec 05 21:36:11.602 INFO [stderr] usermod: no changes
Dec 05 21:36:11.630 INFO [stderr]    Compiling union_find v0.1.0 (/source)
Dec 05 21:36:11.875 INFO [stderr] warning: unused import: `std::iter::Iterator`
Dec 05 21:36:11.875 INFO [stderr]  --> src/main.rs:2:5
Dec 05 21:36:11.875 INFO [stderr]   |
Dec 05 21:36:11.875 INFO [stderr] 2 | use std::iter::Iterator;
Dec 05 21:36:11.875 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 05 21:36:11.875 INFO [stderr]   |
Dec 05 21:36:11.875 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 21:36:11.875 INFO [stderr] 
Dec 05 21:36:12.230 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
Dec 05 21:36:12.232 INFO [stderr] su: No module specific data is present
Dec 05 21:36:12.574 INFO running `"docker" "inspect" "7702f0b1d1821fc737e634a23510ad70fa0e7798d4f6f9ba2b4f342e62934c98"`
Dec 05 21:36:12.674 INFO running `"docker" "rm" "-f" "7702f0b1d1821fc737e634a23510ad70fa0e7798d4f6f9ba2b4f342e62934c98"`
Dec 05 21:36:12.747 INFO [stdout] 7702f0b1d1821fc737e634a23510ad70fa0e7798d4f6f9ba2b4f342e62934c98
Dec 05 21:36:12.750 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt test --frozen --no-run" "-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 05 21:36:12.976 INFO [stdout] e909a74a2695a9705406c49ad04665cd66a9e7fe9f26d08d92f5b349d3462462
Dec 05 21:36:12.977 INFO running `"docker" "start" "-a" "e909a74a2695a9705406c49ad04665cd66a9e7fe9f26d08d92f5b349d3462462"`
Dec 05 21:36:13.421 INFO [stderr] usermod: no changes
Dec 05 21:36:13.454 INFO [stderr]    Compiling union_find v0.1.0 (/source)
Dec 05 21:36:13.740 INFO [stderr] warning: unused import: `std::iter::Iterator`
Dec 05 21:36:13.740 INFO [stderr]  --> src/main.rs:2:5
Dec 05 21:36:13.741 INFO [stderr]   |
Dec 05 21:36:13.741 INFO [stderr] 2 | use std::iter::Iterator;
Dec 05 21:36:13.741 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 05 21:36:13.741 INFO [stderr]   |
Dec 05 21:36:13.741 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 21:36:13.741 INFO [stderr] 
Dec 05 21:36:13.977 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
Dec 05 21:36:13.978 INFO [stderr] su: No module specific data is present
Dec 05 21:36:14.231 INFO running `"docker" "inspect" "e909a74a2695a9705406c49ad04665cd66a9e7fe9f26d08d92f5b349d3462462"`
Dec 05 21:36:14.318 INFO running `"docker" "rm" "-f" "e909a74a2695a9705406c49ad04665cd66a9e7fe9f26d08d92f5b349d3462462"`
Dec 05 21:36:14.439 INFO [stdout] e909a74a2695a9705406c49ad04665cd66a9e7fe9f26d08d92f5b349d3462462
Dec 05 21:36:14.444 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt test --frozen" "-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 05 21:36:14.632 INFO [stdout] 4671f0d24931043ae04c64c6d99d13d61b03edc8c2e8b602471994af2a264ce0
Dec 05 21:36:14.634 INFO running `"docker" "start" "-a" "4671f0d24931043ae04c64c6d99d13d61b03edc8c2e8b602471994af2a264ce0"`
Dec 05 21:36:15.072 INFO [stderr] usermod: no changes
Dec 05 21:36:15.098 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 05 21:36:15.102 INFO [stderr]      Running /target/debug/deps/union_find-1a3dd9b1964a4176
Dec 05 21:36:15.105 INFO [stdout] 
Dec 05 21:36:15.105 INFO [stdout] running 0 tests
Dec 05 21:36:15.105 INFO [stdout] 
Dec 05 21:36:15.105 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 21:36:15.106 INFO [stdout] 
Dec 05 21:36:15.106 INFO [stderr] su: No module specific data is present
Dec 05 21:36:15.380 INFO running `"docker" "inspect" "4671f0d24931043ae04c64c6d99d13d61b03edc8c2e8b602471994af2a264ce0"`
Dec 05 21:36:15.443 INFO running `"docker" "rm" "-f" "4671f0d24931043ae04c64c6d99d13d61b03edc8c2e8b602471994af2a264ce0"`
Dec 05 21:36:15.525 INFO [stdout] 4671f0d24931043ae04c64c6d99d13d61b03edc8c2e8b602471994af2a264ce0