[INFO] cloning repository https://github.com/JamesVStone/maze_nea
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JamesVStone/maze_nea" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesVStone%2Fmaze_nea", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesVStone%2Fmaze_nea'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be6c4e6feef7b223f028a4a63de8ac66c148c45c
[INFO] testing JamesVStone/maze_nea 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%2FJamesVStone%2Fmaze_nea" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JamesVStone/maze_nea 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/JamesVStone/maze_nea
[INFO] finished tweaking git repo https://github.com/JamesVStone/maze_nea
[INFO] tweaked toml for git repo https://github.com/JamesVStone/maze_nea written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/JamesVStone/maze_nea 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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 9e6d08e2a4442d1e0db9c191a7856feff3b74fb9366595b66ebe72a04bfcbd0b
[INFO] running `Command { std: "docker" "start" "-a" "9e6d08e2a4442d1e0db9c191a7856feff3b74fb9366595b66ebe72a04bfcbd0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e6d08e2a4442d1e0db9c191a7856feff3b74fb9366595b66ebe72a04bfcbd0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e6d08e2a4442d1e0db9c191a7856feff3b74fb9366595b66ebe72a04bfcbd0b", kill_on_drop: false }`
[INFO] [stdout] 9e6d08e2a4442d1e0db9c191a7856feff3b74fb9366595b66ebe72a04bfcbd0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] ecc7d7ec5caeda385bb3499c602e3aeda682397aee33aacfb37366bcc87b7173
[INFO] running `Command { std: "docker" "start" "-a" "ecc7d7ec5caeda385bb3499c602e3aeda682397aee33aacfb37366bcc87b7173", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling miniz_oxide v0.5.1
[INFO] [stderr]    Compiling deflate v1.0.0
[INFO] [stderr]    Compiling png v0.17.4
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling maze_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]   --> src/main.rs:46:7
[INFO] [stdout]    |
[INFO] [stdout] 46 |   let file = matches.value_of("filename").unwrap();
[INFO] [stdout]    |       ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 10.42s
[INFO] running `Command { std: "docker" "inspect" "ecc7d7ec5caeda385bb3499c602e3aeda682397aee33aacfb37366bcc87b7173", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecc7d7ec5caeda385bb3499c602e3aeda682397aee33aacfb37366bcc87b7173", kill_on_drop: false }`
[INFO] [stdout] ecc7d7ec5caeda385bb3499c602e3aeda682397aee33aacfb37366bcc87b7173
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 898e61b6e708baf2970a7d2f772c9453520474cdb238ef2134f8677f51518674
[INFO] running `Command { std: "docker" "start" "-a" "898e61b6e708baf2970a7d2f772c9453520474cdb238ef2134f8677f51518674", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling maze_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]   --> src/main.rs:46:7
[INFO] [stdout]    |
[INFO] [stdout] 46 |   let file = matches.value_of("filename").unwrap();
[INFO] [stdout]    |       ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 0.57s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/maze_solver-4a1f7f68305a78bb)
[INFO] running `Command { std: "docker" "inspect" "898e61b6e708baf2970a7d2f772c9453520474cdb238ef2134f8677f51518674", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "898e61b6e708baf2970a7d2f772c9453520474cdb238ef2134f8677f51518674", kill_on_drop: false }`
[INFO] [stdout] 898e61b6e708baf2970a7d2f772c9453520474cdb238ef2134f8677f51518674
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] a049db67e2d5d8db1416df8f7e98e7127d1b5f733d66204c3764ea76f6d88ab4
[INFO] running `Command { std: "docker" "start" "-a" "a049db67e2d5d8db1416df8f7e98e7127d1b5f733d66204c3764ea76f6d88ab4", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]   --> src/main.rs:46:7
[INFO] [stderr]    |
[INFO] [stderr] 46 |   let file = matches.value_of("filename").unwrap();
[INFO] [stderr]    |       ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `maze_solver` (bin "maze_solver" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/maze_solver-4a1f7f68305a78bb)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test maze::test_cell_opposite_down ... ok
[INFO] [stdout] test maze::test_cell_opposite_left ... ok
[INFO] [stdout] test maze::test_cell_opposite_right ... ok
[INFO] [stdout] test maze::test_cell_opposite_up ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a049db67e2d5d8db1416df8f7e98e7127d1b5f733d66204c3764ea76f6d88ab4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a049db67e2d5d8db1416df8f7e98e7127d1b5f733d66204c3764ea76f6d88ab4", kill_on_drop: false }`
[INFO] [stdout] a049db67e2d5d8db1416df8f7e98e7127d1b5f733d66204c3764ea76f6d88ab4