[INFO] cloning repository https://github.com/kklions1/Rust-2048
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kklions1/Rust-2048" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkklions1%2FRust-2048", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkklions1%2FRust-2048'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bd951e661ce382bb33dc83e5a8a3d0da4105f0ab
[INFO] testing kklions1/Rust-2048 against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkklions1%2FRust-2048" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kklions1/Rust-2048 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kklions1/Rust-2048
[INFO] finished tweaking git repo https://github.com/kklions1/Rust-2048
[INFO] tweaked toml for git repo https://github.com/kklions1/Rust-2048 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/kklions1/Rust-2048 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e5151786dd3a52be3f37d052f8ff17bb207d6ba5b043d8c1f6c1e3cff77ab26
[INFO] running `Command { std: "docker" "start" "-a" "4e5151786dd3a52be3f37d052f8ff17bb207d6ba5b043d8c1f6c1e3cff77ab26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e5151786dd3a52be3f37d052f8ff17bb207d6ba5b043d8c1f6c1e3cff77ab26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e5151786dd3a52be3f37d052f8ff17bb207d6ba5b043d8c1f6c1e3cff77ab26", kill_on_drop: false }`
[INFO] [stdout] 4e5151786dd3a52be3f37d052f8ff17bb207d6ba5b043d8c1f6c1e3cff77ab26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97c503eaa78bca0b0910ffdb22f927035c3c81e880589f0b3f1542cfeedc0117
[INFO] running `Command { std: "docker" "start" "-a" "97c503eaa78bca0b0910ffdb22f927035c3c81e880589f0b3f1542cfeedc0117", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling rust_2048 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `has_equal_neighbor`
[INFO] [stdout]   --> src/main.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn has_equal_neighbor(&self) -> bool { 
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Direction`
[INFO] [stdout]   --> src/main.rs:84:6
[INFO] [stdout]    |
[INFO] [stdout] 84 | enum Direction { 
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.49s
[INFO] running `Command { std: "docker" "inspect" "97c503eaa78bca0b0910ffdb22f927035c3c81e880589f0b3f1542cfeedc0117", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97c503eaa78bca0b0910ffdb22f927035c3c81e880589f0b3f1542cfeedc0117", kill_on_drop: false }`
[INFO] [stdout] 97c503eaa78bca0b0910ffdb22f927035c3c81e880589f0b3f1542cfeedc0117
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 333ebadd2db3cfec2dc9228769f1a3655dac31b64966d262f9c564f24a43b45c
[INFO] running `Command { std: "docker" "start" "-a" "333ebadd2db3cfec2dc9228769f1a3655dac31b64966d262f9c564f24a43b45c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_2048 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `has_equal_neighbor`
[INFO] [stdout]   --> src/main.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 |     fn has_equal_neighbor(&self) -> bool { 
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Direction`
[INFO] [stdout]   --> src/main.rs:84:6
[INFO] [stdout]    |
[INFO] [stdout] 84 | enum Direction { 
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "333ebadd2db3cfec2dc9228769f1a3655dac31b64966d262f9c564f24a43b45c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "333ebadd2db3cfec2dc9228769f1a3655dac31b64966d262f9c564f24a43b45c", kill_on_drop: false }`
[INFO] [stdout] 333ebadd2db3cfec2dc9228769f1a3655dac31b64966d262f9c564f24a43b45c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e0ab20b7e70b46db8fa487aea9a4cc105d29d3b24e34919337fb035dfc6c24ff
[INFO] running `Command { std: "docker" "start" "-a" "e0ab20b7e70b46db8fa487aea9a4cc105d29d3b24e34919337fb035dfc6c24ff", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `has_equal_neighbor`
[INFO] [stderr]   --> src/main.rs:64:8
[INFO] [stderr]    |
[INFO] [stderr] 64 |     fn has_equal_neighbor(&self) -> bool { 
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Direction`
[INFO] [stderr]   --> src/main.rs:84:6
[INFO] [stderr]    |
[INFO] [stderr] 84 | enum Direction { 
[INFO] [stderr]    |      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_2048` (bin "rust_2048" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_2048-099f11b085c16781)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e0ab20b7e70b46db8fa487aea9a4cc105d29d3b24e34919337fb035dfc6c24ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0ab20b7e70b46db8fa487aea9a4cc105d29d3b24e34919337fb035dfc6c24ff", kill_on_drop: false }`
[INFO] [stdout] e0ab20b7e70b46db8fa487aea9a4cc105d29d3b24e34919337fb035dfc6c24ff