[INFO] cloning repository https://github.com/r4f4/game-fifteen-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/r4f4/game-fifteen-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr4f4%2Fgame-fifteen-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr4f4%2Fgame-fifteen-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 28bd9185d765337fb7c6aee0d9d33ab21f7d4d22
[INFO] testing r4f4/game-fifteen-rs against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr4f4%2Fgame-fifteen-rs" "/workspace/builds/worker-65/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-65/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/r4f4/game-fifteen-rs on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/r4f4/game-fifteen-rs
[INFO] finished tweaking git repo https://github.com/r4f4/game-fifteen-rs
[INFO] tweaked toml for git repo https://github.com/r4f4/game-fifteen-rs written to /workspace/builds/worker-65/source/Cargo.toml
[INFO] crate git repo https://github.com/r4f4/game-fifteen-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47abf025fc6856000ec65f70f1ac6b15f665d846077d53e6b9a712fe56d15554
[INFO] running `Command { std: "docker" "start" "-a" "47abf025fc6856000ec65f70f1ac6b15f665d846077d53e6b9a712fe56d15554", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47abf025fc6856000ec65f70f1ac6b15f665d846077d53e6b9a712fe56d15554", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47abf025fc6856000ec65f70f1ac6b15f665d846077d53e6b9a712fe56d15554", kill_on_drop: false }`
[INFO] [stdout] 47abf025fc6856000ec65f70f1ac6b15f665d846077d53e6b9a712fe56d15554
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0d1782e6aa9557f38129310c4c74ecbabb1032188137761363cf5c64f17e358
[INFO] running `Command { std: "docker" "start" "-a" "f0d1782e6aa9557f38129310c4c74ecbabb1032188137761363cf5c64f17e358", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling game15 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/solver.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |         ((diff / 4) + (diff % 4)) // # of rows + cols to move
[INFO] [stdout]    |         ^                       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 47 -         ((diff / 4) + (diff % 4)) // # of rows + cols to move
[INFO] [stdout] 47 +         (diff / 4) + (diff % 4) // # of rows + cols to move
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.74s
[INFO] running `Command { std: "docker" "inspect" "f0d1782e6aa9557f38129310c4c74ecbabb1032188137761363cf5c64f17e358", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0d1782e6aa9557f38129310c4c74ecbabb1032188137761363cf5c64f17e358", kill_on_drop: false }`
[INFO] [stdout] f0d1782e6aa9557f38129310c4c74ecbabb1032188137761363cf5c64f17e358
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d2a85e97fb684511b72e28f60f4506cc69871359dee741c7e38dec6c4ebfb22
[INFO] running `Command { std: "docker" "start" "-a" "7d2a85e97fb684511b72e28f60f4506cc69871359dee741c7e38dec6c4ebfb22", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/solver.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |         ((diff / 4) + (diff % 4)) // # of rows + cols to move
[INFO] [stdout]    |         ^                       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 47 -         ((diff / 4) + (diff % 4)) // # of rows + cols to move
[INFO] [stdout] 47 +         (diff / 4) + (diff % 4) // # of rows + cols to move
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling game15 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/solver.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |         ((diff / 4) + (diff % 4)) // # of rows + cols to move
[INFO] [stdout]    |         ^                       ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 47 -         ((diff / 4) + (diff % 4)) // # of rows + cols to move
[INFO] [stdout] 47 +         (diff / 4) + (diff % 4) // # of rows + cols to move
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.21s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/game15-11b7a584000e8a20)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/game15-29e5d9e71cc65bef)
[INFO] running `Command { std: "docker" "inspect" "7d2a85e97fb684511b72e28f60f4506cc69871359dee741c7e38dec6c4ebfb22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d2a85e97fb684511b72e28f60f4506cc69871359dee741c7e38dec6c4ebfb22", kill_on_drop: false }`
[INFO] [stdout] 7d2a85e97fb684511b72e28f60f4506cc69871359dee741c7e38dec6c4ebfb22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 686ecd4c245f9589c2b5d400219207a85ce41e555f8d759506cce1b47b01a43c
[INFO] running `Command { std: "docker" "start" "-a" "686ecd4c245f9589c2b5d400219207a85ce41e555f8d759506cce1b47b01a43c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/solver.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |         ((diff / 4) + (diff % 4)) // # of rows + cols to move
[INFO] [stderr]    |         ^                       ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 47 -         ((diff / 4) + (diff % 4)) // # of rows + cols to move
[INFO] [stderr] 47 +         (diff / 4) + (diff % 4) // # of rows + cols to move
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: `game15` (lib) generated 1 warning
[INFO] [stderr] warning: `game15` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 14.70s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/game15-11b7a584000e8a20)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test board::tests::board_clone ... ok
[INFO] [stdout] test board::tests::create_board ... ok
[INFO] [stdout] test board::tests::board_solved ... ok
[INFO] [stdout] test board::tests::dir_is_opposite ... ok
[INFO] [stdout] test board::tests::board_solvable ... ok
[INFO] [stdout] test board::tests::board_move ... ok
[INFO] [stdout] test board::tests::dir_opposes ... ok
[INFO] [stdout] test board::tests::dir_value ... ok
[INFO] [stdout] test solver::tests::solve_random ... ignored
[INFO] [stdout] test board::tests::random_board ... ok
[INFO] [stdout] test solver::tests::solve_almost_solved ... ok
[INFO] [stdout] test solver::tests::solve_solvable ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/game15-29e5d9e71cc65bef)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests game15
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 13.50s
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stdout] 
[INFO] [stderr]   --> /opt/rustwide/workdir/src/solver.rs:47:9
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] running 0 tests
[INFO] [stderr] 47 |         ((diff / 4) + (diff % 4)) // # of rows + cols to move
[INFO] [stdout] 
[INFO] [stderr]    |         ^                       ^
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stderr] help: remove these parentheses
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 47 -         ((diff / 4) + (diff % 4)) // # of rows + cols to move
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 47 +         (diff / 4) + (diff % 4) // # of rows + cols to move
[INFO] [stdout] 
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] running `Command { std: "docker" "inspect" "686ecd4c245f9589c2b5d400219207a85ce41e555f8d759506cce1b47b01a43c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "686ecd4c245f9589c2b5d400219207a85ce41e555f8d759506cce1b47b01a43c", kill_on_drop: false }`
[INFO] [stdout] 686ecd4c245f9589c2b5d400219207a85ce41e555f8d759506cce1b47b01a43c