[INFO] cloning repository https://github.com/Phlosioneer/polyomino-generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Phlosioneer/polyomino-generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPhlosioneer%2Fpolyomino-generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPhlosioneer%2Fpolyomino-generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0b91eeb3f43129deb20c8d844d8da46d8e24b5f6
[INFO] testing Phlosioneer/polyomino-generator 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%2FPhlosioneer%2Fpolyomino-generator" "/workspace/builds/worker-25/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-25/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Phlosioneer/polyomino-generator 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/Phlosioneer/polyomino-generator
[INFO] finished tweaking git repo https://github.com/Phlosioneer/polyomino-generator
[INFO] tweaked toml for git repo https://github.com/Phlosioneer/polyomino-generator written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] crate git repo https://github.com/Phlosioneer/polyomino-generator 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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] a2b8c87aa28e867ba878a01dc73ab29079689e13ea363e5bb626f6cf33c7cb05
[INFO] running `Command { std: "docker" "start" "-a" "a2b8c87aa28e867ba878a01dc73ab29079689e13ea363e5bb626f6cf33c7cb05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2b8c87aa28e867ba878a01dc73ab29079689e13ea363e5bb626f6cf33c7cb05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2b8c87aa28e867ba878a01dc73ab29079689e13ea363e5bb626f6cf33c7cb05", kill_on_drop: false }`
[INFO] [stdout] a2b8c87aa28e867ba878a01dc73ab29079689e13ea363e5bb626f6cf33c7cb05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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] 46f8ff253b2c4e574b3911650a8cf660fb21765dd5562909b101a314d861efda
[INFO] running `Command { std: "docker" "start" "-a" "46f8ff253b2c4e574b3911650a8cf660fb21765dd5562909b101a314d861efda", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling tinyvec v1.2.0
[INFO] [stderr]    Compiling polyomino-generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `from_flips`
[INFO] [stdout]   --> src/symmetry.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn from_flips(horizontal: bool, vertical: bool, diagonal: bool) -> Symmetry {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_index`
[INFO] [stdout]   --> src/symmetry.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn from_index(index: usize) -> Symmetry {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mirror_horizontal`
[INFO] [stdout]   --> src/symmetry.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn mirror_horizontal(mut self) -> Symmetry {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mirror_vertical`
[INFO] [stdout]   --> src/symmetry.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn mirror_vertical(mut self) -> Symmetry {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate`
[INFO] [stdout]   --> src/symmetry.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn rotate(mut self, mut clockwise: i8) -> Symmetry {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.33s
[INFO] running `Command { std: "docker" "inspect" "46f8ff253b2c4e574b3911650a8cf660fb21765dd5562909b101a314d861efda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46f8ff253b2c4e574b3911650a8cf660fb21765dd5562909b101a314d861efda", kill_on_drop: false }`
[INFO] [stdout] 46f8ff253b2c4e574b3911650a8cf660fb21765dd5562909b101a314d861efda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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] 11b93df28fa69766524ca949d2cf11dca333640108fc7e6d1bfe11292eb4a2ee
[INFO] running `Command { std: "docker" "start" "-a" "11b93df28fa69766524ca949d2cf11dca333640108fc7e6d1bfe11292eb4a2ee", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling polyomino-generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `from_index`
[INFO] [stdout]   --> src/symmetry.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn from_index(index: usize) -> Symmetry {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mirror_horizontal`
[INFO] [stdout]   --> src/symmetry.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn mirror_horizontal(mut self) -> Symmetry {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mirror_vertical`
[INFO] [stdout]   --> src/symmetry.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 71 |     pub fn mirror_vertical(mut self) -> Symmetry {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate`
[INFO] [stdout]   --> src/symmetry.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn rotate(mut self, mut clockwise: i8) -> Symmetry {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.95s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/polyomino_generator-56819e62151eea1c)
[INFO] running `Command { std: "docker" "inspect" "11b93df28fa69766524ca949d2cf11dca333640108fc7e6d1bfe11292eb4a2ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11b93df28fa69766524ca949d2cf11dca333640108fc7e6d1bfe11292eb4a2ee", kill_on_drop: false }`
[INFO] [stdout] 11b93df28fa69766524ca949d2cf11dca333640108fc7e6d1bfe11292eb4a2ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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] 0b542da7a764bb6d4a60ce9f47c2d906cdac8078a40a49b280462475a042e1a8
[INFO] running `Command { std: "docker" "start" "-a" "0b542da7a764bb6d4a60ce9f47c2d906cdac8078a40a49b280462475a042e1a8", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `from_index`
[INFO] [stderr]   --> src/symmetry.rs:37:12
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn from_index(index: usize) -> Symmetry {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `mirror_horizontal`
[INFO] [stderr]   --> src/symmetry.rs:58:12
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn mirror_horizontal(mut self) -> Symmetry {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `mirror_vertical`
[INFO] [stderr]   --> src/symmetry.rs:71:12
[INFO] [stderr]    |
[INFO] [stderr] 71 |     pub fn mirror_vertical(mut self) -> Symmetry {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `rotate`
[INFO] [stderr]   --> src/symmetry.rs:83:12
[INFO] [stderr]    |
[INFO] [stderr] 83 |     pub fn rotate(mut self, mut clockwise: i8) -> Symmetry {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `polyomino-generator` (bin "polyomino-generator" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/polyomino_generator-56819e62151eea1c)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test polyominos::test::test_comparison ... ok
[INFO] [stdout] test polyominos::test::test_coord_sort ... ok
[INFO] [stdout] test polyominos::test::test_to_string ... ok
[INFO] [stdout] test polyominos::test::test_flips ... ok
[INFO] [stdout] test board::test::test_add ... ok
[INFO] [stdout] test polyominos::test::test_transform ... ok
[INFO] [stdout] test board::test::test_solution ... ok
[INFO] [stdout] test board::test::regression_test_solution ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0b542da7a764bb6d4a60ce9f47c2d906cdac8078a40a49b280462475a042e1a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b542da7a764bb6d4a60ce9f47c2d906cdac8078a40a49b280462475a042e1a8", kill_on_drop: false }`
[INFO] [stdout] 0b542da7a764bb6d4a60ce9f47c2d906cdac8078a40a49b280462475a042e1a8