[INFO] cloning repository https://github.com/neutonfoo/rust-maze-dfs-solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/neutonfoo/rust-maze-dfs-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneutonfoo%2Frust-maze-dfs-solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneutonfoo%2Frust-maze-dfs-solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8df3dfe8fbda26919fc0e7fa299f4718eb6bf9eb
[INFO] testing neutonfoo/rust-maze-dfs-solver against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fneutonfoo%2Frust-maze-dfs-solver" "/workspace/builds/worker-53/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-53/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/neutonfoo/rust-maze-dfs-solver on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/neutonfoo/rust-maze-dfs-solver
[INFO] finished tweaking git repo https://github.com/neutonfoo/rust-maze-dfs-solver
[INFO] tweaked toml for git repo https://github.com/neutonfoo/rust-maze-dfs-solver written to /workspace/builds/worker-53/source/Cargo.toml
[INFO] crate git repo https://github.com/neutonfoo/rust-maze-dfs-solver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3594a91ce9268d56bb8c60e7b8d9519c4ae0be7c38819e0900fb885608aff14
[INFO] running `Command { std: "docker" "start" "-a" "c3594a91ce9268d56bb8c60e7b8d9519c4ae0be7c38819e0900fb885608aff14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3594a91ce9268d56bb8c60e7b8d9519c4ae0be7c38819e0900fb885608aff14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3594a91ce9268d56bb8c60e7b8d9519c4ae0be7c38819e0900fb885608aff14", kill_on_drop: false }`
[INFO] [stdout] c3594a91ce9268d56bb8c60e7b8d9519c4ae0be7c38819e0900fb885608aff14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a3358b32ba3f43069184e2c99825b3dfb730634b2e39c8a85a1845c793ae5f8
[INFO] running `Command { std: "docker" "start" "-a" "2a3358b32ba3f43069184e2c99825b3dfb730634b2e39c8a85a1845c793ae5f8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-maze-dfs-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `visited`
[INFO] [stdout]   --> src/maze.rs:22:3
[INFO] [stdout]    |
[INFO] [stdout] 22 |   visited: HashSet<Point>,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "2a3358b32ba3f43069184e2c99825b3dfb730634b2e39c8a85a1845c793ae5f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a3358b32ba3f43069184e2c99825b3dfb730634b2e39c8a85a1845c793ae5f8", kill_on_drop: false }`
[INFO] [stdout] 2a3358b32ba3f43069184e2c99825b3dfb730634b2e39c8a85a1845c793ae5f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 40536d2db3dee51d6ff5847acb7452ec457af292d730053cf6dd76501461cefe
[INFO] running `Command { std: "docker" "start" "-a" "40536d2db3dee51d6ff5847acb7452ec457af292d730053cf6dd76501461cefe", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-maze-dfs-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `visited`
[INFO] [stdout]   --> src/maze.rs:22:3
[INFO] [stdout]    |
[INFO] [stdout] 22 |   visited: HashSet<Point>,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "40536d2db3dee51d6ff5847acb7452ec457af292d730053cf6dd76501461cefe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40536d2db3dee51d6ff5847acb7452ec457af292d730053cf6dd76501461cefe", kill_on_drop: false }`
[INFO] [stdout] 40536d2db3dee51d6ff5847acb7452ec457af292d730053cf6dd76501461cefe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3a06bfda2ba55460d8a6ae87f74fa9980f22b190cfb522cb36e445bc04d6a276
[INFO] running `Command { std: "docker" "start" "-a" "3a06bfda2ba55460d8a6ae87f74fa9980f22b190cfb522cb36e445bc04d6a276", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: field is never read: `visited`
[INFO] [stderr]   --> src/maze.rs:22:3
[INFO] [stderr]    |
[INFO] [stderr] 22 |   visited: HashSet<Point>,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-maze-dfs-solver` (bin "rust-maze-dfs-solver" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.56s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_maze_dfs_solver-9651356c4f1bc31f)
[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" "3a06bfda2ba55460d8a6ae87f74fa9980f22b190cfb522cb36e445bc04d6a276", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a06bfda2ba55460d8a6ae87f74fa9980f22b190cfb522cb36e445bc04d6a276", kill_on_drop: false }`
[INFO] [stdout] 3a06bfda2ba55460d8a6ae87f74fa9980f22b190cfb522cb36e445bc04d6a276