Dec 06 12:00:52.825 INFO testing Mancomb/four_in_a_row against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 12:00:52.825 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 06 12:00:53.013 INFO [stdout] 8378e74665f0f5fa0e1ffe52d44f29042e174aff69ba1d8696c978cc8586b374
Dec 06 12:00:53.015 INFO running `"docker" "start" "-a" "8378e74665f0f5fa0e1ffe52d44f29042e174aff69ba1d8696c978cc8586b374"`
Dec 06 12:00:53.368 INFO [stderr] usermod: no changes
Dec 06 12:00:53.416 INFO [stderr]    Compiling mcts v0.2.0
Dec 06 12:00:54.544 INFO [stderr]    Compiling four_in_a_row v0.1.0 (/source)
Dec 06 12:00:55.448 INFO [stderr] warning: unused import: `random::Random`
Dec 06 12:00:55.448 INFO [stderr]   --> src/main.rs:12:5
Dec 06 12:00:55.448 INFO [stderr]    |
Dec 06 12:00:55.448 INFO [stderr] 12 | use random::Random;
Dec 06 12:00:55.448 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 06 12:00:55.448 INFO [stderr]    |
Dec 06 12:00:55.448 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 06 12:00:55.448 INFO [stderr] 
Dec 06 12:00:55.563 INFO [stderr] warning: struct is never constructed: `Random`
Dec 06 12:00:55.563 INFO [stderr]  --> src/random.rs:8:1
Dec 06 12:00:55.563 INFO [stderr]   |
Dec 06 12:00:55.563 INFO [stderr] 8 | pub struct Random;
Dec 06 12:00:55.563 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 06 12:00:55.563 INFO [stderr]   |
Dec 06 12:00:55.563 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 06 12:00:55.563 INFO [stderr] 
Dec 06 12:00:55.564 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 12:00:55.564 INFO [stderr]   --> src/connect_four.rs:56:17
Dec 06 12:00:55.564 INFO [stderr]    |
Dec 06 12:00:55.564 INFO [stderr] 56 |                 write!(out, "|{}", c);
Dec 06 12:00:55.564 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^
Dec 06 12:00:55.564 INFO [stderr]    |
Dec 06 12:00:55.564 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 12:00:55.564 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 12:00:55.564 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 12:00:55.564 INFO [stderr] 
Dec 06 12:00:55.564 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 12:00:55.564 INFO [stderr]   --> src/connect_four.rs:58:13
Dec 06 12:00:55.564 INFO [stderr]    |
Dec 06 12:00:55.564 INFO [stderr] 58 |             writeln!(out, "|");
Dec 06 12:00:55.564 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^
Dec 06 12:00:55.564 INFO [stderr]    |
Dec 06 12:00:55.564 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 12:00:55.564 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 12:00:55.564 INFO [stderr] 
Dec 06 12:00:55.564 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 12:00:55.564 INFO [stderr]   --> src/connect_four.rs:60:9
Dec 06 12:00:55.564 INFO [stderr]    |
Dec 06 12:00:55.564 INFO [stderr] 60 |         writeln!(out, "---------------\n 0 1 2 3 4 5 6");
Dec 06 12:00:55.564 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 12:00:55.564 INFO [stderr]    |
Dec 06 12:00:55.564 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 12:00:55.564 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 12:00:55.564 INFO [stderr] 
Dec 06 12:00:56.492 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.10s
Dec 06 12:00:56.494 INFO [stderr] su: No module specific data is present
Dec 06 12:00:56.726 INFO running `"docker" "inspect" "8378e74665f0f5fa0e1ffe52d44f29042e174aff69ba1d8696c978cc8586b374"`
Dec 06 12:00:56.809 INFO running `"docker" "rm" "-f" "8378e74665f0f5fa0e1ffe52d44f29042e174aff69ba1d8696c978cc8586b374"`
Dec 06 12:00:56.904 INFO [stdout] 8378e74665f0f5fa0e1ffe52d44f29042e174aff69ba1d8696c978cc8586b374
Dec 06 12:00:56.908 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 06 12:00:57.068 INFO [stdout] 669536e32e333c1ffe651f1281d0ce47d33fe2152c8af4c4562b6d6c58ade98f
Dec 06 12:00:57.073 INFO running `"docker" "start" "-a" "669536e32e333c1ffe651f1281d0ce47d33fe2152c8af4c4562b6d6c58ade98f"`
Dec 06 12:00:57.473 INFO [stderr] usermod: no changes
Dec 06 12:00:57.516 INFO [stderr]    Compiling four_in_a_row v0.1.0 (/source)
Dec 06 12:00:58.149 INFO [stderr] warning: unused import: `random::Random`
Dec 06 12:00:58.149 INFO [stderr]   --> src/main.rs:12:5
Dec 06 12:00:58.149 INFO [stderr]    |
Dec 06 12:00:58.149 INFO [stderr] 12 | use random::Random;
Dec 06 12:00:58.149 INFO [stderr]    |     ^^^^^^^^^^^^^^
Dec 06 12:00:58.149 INFO [stderr]    |
Dec 06 12:00:58.149 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 06 12:00:58.149 INFO [stderr] 
Dec 06 12:00:58.264 INFO [stderr] warning: struct is never constructed: `Random`
Dec 06 12:00:58.264 INFO [stderr]  --> src/random.rs:8:1
Dec 06 12:00:58.264 INFO [stderr]   |
Dec 06 12:00:58.264 INFO [stderr] 8 | pub struct Random;
Dec 06 12:00:58.264 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 06 12:00:58.264 INFO [stderr]   |
Dec 06 12:00:58.264 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 06 12:00:58.264 INFO [stderr] 
Dec 06 12:00:58.266 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 12:00:58.266 INFO [stderr]   --> src/connect_four.rs:56:17
Dec 06 12:00:58.266 INFO [stderr]    |
Dec 06 12:00:58.266 INFO [stderr] 56 |                 write!(out, "|{}", c);
Dec 06 12:00:58.266 INFO [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^
Dec 06 12:00:58.266 INFO [stderr]    |
Dec 06 12:00:58.266 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 06 12:00:58.266 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 12:00:58.266 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 12:00:58.266 INFO [stderr] 
Dec 06 12:00:58.266 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 12:00:58.266 INFO [stderr]   --> src/connect_four.rs:58:13
Dec 06 12:00:58.266 INFO [stderr]    |
Dec 06 12:00:58.266 INFO [stderr] 58 |             writeln!(out, "|");
Dec 06 12:00:58.266 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^
Dec 06 12:00:58.266 INFO [stderr]    |
Dec 06 12:00:58.266 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 12:00:58.266 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 12:00:58.266 INFO [stderr] 
Dec 06 12:00:58.266 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 06 12:00:58.266 INFO [stderr]   --> src/connect_four.rs:60:9
Dec 06 12:00:58.266 INFO [stderr]    |
Dec 06 12:00:58.266 INFO [stderr] 60 |         writeln!(out, "---------------\n 0 1 2 3 4 5 6");
Dec 06 12:00:58.266 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 12:00:58.266 INFO [stderr]    |
Dec 06 12:00:58.266 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 06 12:00:58.266 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 12:00:58.266 INFO [stderr] 
Dec 06 12:00:58.493 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
Dec 06 12:00:58.496 INFO [stderr] su: No module specific data is present
Dec 06 12:00:58.894 INFO running `"docker" "inspect" "669536e32e333c1ffe651f1281d0ce47d33fe2152c8af4c4562b6d6c58ade98f"`
Dec 06 12:00:59.050 INFO running `"docker" "rm" "-f" "669536e32e333c1ffe651f1281d0ce47d33fe2152c8af4c4562b6d6c58ade98f"`
Dec 06 12:00:59.391 INFO [stdout] 669536e32e333c1ffe651f1281d0ce47d33fe2152c8af4c4562b6d6c58ade98f
Dec 06 12:00:59.395 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-7/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 06 12:00:59.715 INFO [stdout] f89cb6e3812baa146248fab88d14785e7d0fe080a4da12b3ef490e790449e468
Dec 06 12:00:59.718 INFO running `"docker" "start" "-a" "f89cb6e3812baa146248fab88d14785e7d0fe080a4da12b3ef490e790449e468"`
Dec 06 12:01:00.160 INFO [stderr] usermod: no changes
Dec 06 12:01:00.200 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 06 12:01:00.201 INFO [stderr]      Running /target/debug/deps/four_in_a_row-3b2f8016e5745ded
Dec 06 12:01:00.202 INFO [stdout] 
Dec 06 12:01:00.202 INFO [stdout] running 5 tests
Dec 06 12:01:00.203 INFO [stdout] test bitboard::test::diagonal1 ... ok
Dec 06 12:01:00.203 INFO [stdout] test bitboard::test::place_stones ... ok
Dec 06 12:01:00.203 INFO [stdout] test bitboard::test::diagonal2 ... ok
Dec 06 12:01:00.203 INFO [stdout] test bitboard::test::vertical ... ok
Dec 06 12:01:00.203 INFO [stdout] test bitboard::test::horizontal ... ok
Dec 06 12:01:00.203 INFO [stdout] 
Dec 06 12:01:00.203 INFO [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 12:01:00.203 INFO [stdout] 
Dec 06 12:01:00.205 INFO [stderr] su: No module specific data is present
Dec 06 12:01:00.526 INFO running `"docker" "inspect" "f89cb6e3812baa146248fab88d14785e7d0fe080a4da12b3ef490e790449e468"`
Dec 06 12:01:00.633 INFO running `"docker" "rm" "-f" "f89cb6e3812baa146248fab88d14785e7d0fe080a4da12b3ef490e790449e468"`
Dec 06 12:01:00.715 INFO [stdout] f89cb6e3812baa146248fab88d14785e7d0fe080a4da12b3ef490e790449e468