Dec 06 12:00:52.591 INFO testing Mancomb/four_in_a_row against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 12:00:52.591 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 06 12:00:52.773 INFO [stdout] 8f2b2f6c2e1455f0af9bdaad9c54b3ddee05ea8b67eb2c70817b06840c1dc37f
Dec 06 12:00:52.775 INFO running `"docker" "start" "-a" "8f2b2f6c2e1455f0af9bdaad9c54b3ddee05ea8b67eb2c70817b06840c1dc37f"`
Dec 06 12:00:53.088 INFO [stderr] usermod: no changes
Dec 06 12:00:53.130 INFO [stderr]    Compiling mcts v0.2.0
Dec 06 12:00:53.949 INFO [stderr]    Compiling four_in_a_row v0.1.0 (/source)
Dec 06 12:00:54.332 INFO [stderr] warning: unused import: `random::Random`
Dec 06 12:00:54.332 INFO [stderr]   --> src/main.rs:12:5
Dec 06 12:00:54.332 INFO [stderr]    |
Dec 06 12:00:54.332 INFO [stderr] 12 | use random::Random;
Dec 06 12:00:54.332 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 06 12:00:54.332 INFO [stderr]    |
Dec 06 12:00:54.332 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 06 12:00:54.332 INFO [stderr] 
Dec 06 12:00:54.458 INFO [stderr] warning: struct is never constructed: `Random`
Dec 06 12:00:54.458 INFO [stderr]  --> src/random.rs:8:1
Dec 06 12:00:54.458 INFO [stderr]   |
Dec 06 12:00:54.458 INFO [stderr] 8 | pub struct Random;
Dec 06 12:00:54.458 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 06 12:00:54.458 INFO [stderr]   |
Dec 06 12:00:54.458 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 06 12:00:54.458 INFO [stderr] 
Dec 06 12:00:54.458 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 12:00:54.464 INFO [stderr]   --> src/connect_four.rs:56:17
Dec 06 12:00:54.464 INFO [stderr]    |
Dec 06 12:00:54.464 INFO [stderr] 56 |                 write!(out, "|{}", c);
Dec 06 12:00:54.464 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^
Dec 06 12:00:54.464 INFO [stderr]    |
Dec 06 12:00:54.464 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 12:00:54.464 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 12:00:54.464 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 06 12:00:54.464 INFO [stderr] 
Dec 06 12:00:54.464 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 12:00:54.464 INFO [stderr]   --> src/connect_four.rs:58:13
Dec 06 12:00:54.464 INFO [stderr]    |
Dec 06 12:00:54.464 INFO [stderr] 58 |             writeln!(out, "|");
Dec 06 12:00:54.464 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^
Dec 06 12:00:54.464 INFO [stderr]    |
Dec 06 12:00:54.464 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 12:00:54.464 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 06 12:00:54.464 INFO [stderr] 
Dec 06 12:00:54.464 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 12:00:54.464 INFO [stderr]   --> src/connect_four.rs:60:9
Dec 06 12:00:54.465 INFO [stderr]    |
Dec 06 12:00:54.465 INFO [stderr] 60 |         writeln!(out, "---------------\n 0 1 2 3 4 5 6");
Dec 06 12:00:54.465 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 12:00:54.465 INFO [stderr]    |
Dec 06 12:00:54.465 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 12:00:54.465 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 06 12:00:54.465 INFO [stderr] 
Dec 06 12:00:55.646 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.54s
Dec 06 12:00:55.658 INFO [stderr] su: No module specific data is present
Dec 06 12:00:56.319 INFO running `"docker" "inspect" "8f2b2f6c2e1455f0af9bdaad9c54b3ddee05ea8b67eb2c70817b06840c1dc37f"`
Dec 06 12:00:56.418 INFO running `"docker" "rm" "-f" "8f2b2f6c2e1455f0af9bdaad9c54b3ddee05ea8b67eb2c70817b06840c1dc37f"`
Dec 06 12:00:56.588 INFO [stdout] 8f2b2f6c2e1455f0af9bdaad9c54b3ddee05ea8b67eb2c70817b06840c1dc37f
Dec 06 12:00:56.590 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 06 12:00:56.792 INFO [stdout] e1d49a7358daac7f21920d9b6427e07b814d934245451ca822846a6a28dd5735
Dec 06 12:00:56.793 INFO running `"docker" "start" "-a" "e1d49a7358daac7f21920d9b6427e07b814d934245451ca822846a6a28dd5735"`
Dec 06 12:00:57.314 INFO [stderr] usermod: no changes
Dec 06 12:00:57.370 INFO [stderr]    Compiling four_in_a_row v0.1.0 (/source)
Dec 06 12:00:57.749 INFO [stderr] warning: unused import: `random::Random`
Dec 06 12:00:57.749 INFO [stderr]   --> src/main.rs:12:5
Dec 06 12:00:57.749 INFO [stderr]    |
Dec 06 12:00:57.749 INFO [stderr] 12 | use random::Random;
Dec 06 12:00:57.749 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 06 12:00:57.749 INFO [stderr]    |
Dec 06 12:00:57.749 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 06 12:00:57.749 INFO [stderr] 
Dec 06 12:00:57.884 INFO [stderr] warning: struct is never constructed: `Random`
Dec 06 12:00:57.884 INFO [stderr]  --> src/random.rs:8:1
Dec 06 12:00:57.884 INFO [stderr]   |
Dec 06 12:00:57.884 INFO [stderr] 8 | pub struct Random;
Dec 06 12:00:57.884 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 06 12:00:57.884 INFO [stderr]   |
Dec 06 12:00:57.884 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 06 12:00:57.884 INFO [stderr] 
Dec 06 12:00:57.886 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 12:00:57.886 INFO [stderr]   --> src/connect_four.rs:56:17
Dec 06 12:00:57.886 INFO [stderr]    |
Dec 06 12:00:57.886 INFO [stderr] 56 |                 write!(out, "|{}", c);
Dec 06 12:00:57.886 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^
Dec 06 12:00:57.886 INFO [stderr]    |
Dec 06 12:00:57.886 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 12:00:57.886 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 12:00:57.886 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 06 12:00:57.886 INFO [stderr] 
Dec 06 12:00:57.886 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 12:00:57.886 INFO [stderr]   --> src/connect_four.rs:58:13
Dec 06 12:00:57.886 INFO [stderr]    |
Dec 06 12:00:57.886 INFO [stderr] 58 |             writeln!(out, "|");
Dec 06 12:00:57.886 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^
Dec 06 12:00:57.886 INFO [stderr]    |
Dec 06 12:00:57.886 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 12:00:57.886 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 06 12:00:57.886 INFO [stderr] 
Dec 06 12:00:57.887 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 12:00:57.887 INFO [stderr]   --> src/connect_four.rs:60:9
Dec 06 12:00:57.887 INFO [stderr]    |
Dec 06 12:00:57.887 INFO [stderr] 60 |         writeln!(out, "---------------\n 0 1 2 3 4 5 6");
Dec 06 12:00:57.887 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 12:00:57.887 INFO [stderr]    |
Dec 06 12:00:57.887 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 12:00:57.887 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 06 12:00:57.887 INFO [stderr] 
Dec 06 12:00:58.216 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
Dec 06 12:00:58.219 INFO [stderr] su: No module specific data is present
Dec 06 12:00:58.516 INFO running `"docker" "inspect" "e1d49a7358daac7f21920d9b6427e07b814d934245451ca822846a6a28dd5735"`
Dec 06 12:00:58.598 INFO running `"docker" "rm" "-f" "e1d49a7358daac7f21920d9b6427e07b814d934245451ca822846a6a28dd5735"`
Dec 06 12:00:58.702 INFO [stdout] e1d49a7358daac7f21920d9b6427e07b814d934245451ca822846a6a28dd5735
Dec 06 12:00:58.704 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-4/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 06 12:00:58.928 INFO [stdout] 5d6dbad343ef25934275c88f9afe1609123d38d459b710116b7e483d78bef48e
Dec 06 12:00:58.930 INFO running `"docker" "start" "-a" "5d6dbad343ef25934275c88f9afe1609123d38d459b710116b7e483d78bef48e"`
Dec 06 12:00:59.598 INFO [stderr] usermod: no changes
Dec 06 12:00:59.656 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Dec 06 12:00:59.664 INFO [stderr]      Running /target/debug/deps/four_in_a_row-82a9778d4d211661
Dec 06 12:00:59.666 INFO [stdout] 
Dec 06 12:00:59.666 INFO [stdout] running 5 tests
Dec 06 12:00:59.666 INFO [stdout] test bitboard::test::vertical ... ok
Dec 06 12:00:59.666 INFO [stdout] test bitboard::test::place_stones ... ok
Dec 06 12:00:59.666 INFO [stdout] test bitboard::test::diagonal2 ... ok
Dec 06 12:00:59.666 INFO [stdout] test bitboard::test::diagonal1 ... ok
Dec 06 12:00:59.676 INFO [stdout] test bitboard::test::horizontal ... ok
Dec 06 12:00:59.676 INFO [stdout] 
Dec 06 12:00:59.676 INFO [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 12:00:59.676 INFO [stdout] 
Dec 06 12:00:59.680 INFO [stderr] su: No module specific data is present
Dec 06 12:00:59.999 INFO running `"docker" "inspect" "5d6dbad343ef25934275c88f9afe1609123d38d459b710116b7e483d78bef48e"`
Dec 06 12:01:00.093 INFO running `"docker" "rm" "-f" "5d6dbad343ef25934275c88f9afe1609123d38d459b710116b7e483d78bef48e"`
Dec 06 12:01:00.163 INFO [stdout] 5d6dbad343ef25934275c88f9afe1609123d38d459b710116b7e483d78bef48e