[INFO] cloning repository https://github.com/jackie-ell/rust-maze
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jackie-ell/rust-maze" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackie-ell%2Frust-maze", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackie-ell%2Frust-maze'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a6e0aa73d337b6f7f36b8fcdd8396913f0198843
[INFO] testing jackie-ell/rust-maze against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackie-ell%2Frust-maze" "/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/jackie-ell/rust-maze on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jackie-ell/rust-maze
[INFO] finished tweaking git repo https://github.com/jackie-ell/rust-maze
[INFO] tweaked toml for git repo https://github.com/jackie-ell/rust-maze written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/jackie-ell/rust-maze already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4b90b1881f36f9df0897e3095484a605c2f79719579c28a5d7443afd2f17d8e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a4b90b1881f36f9df0897e3095484a605c2f79719579c28a5d7443afd2f17d8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4b90b1881f36f9df0897e3095484a605c2f79719579c28a5d7443afd2f17d8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4b90b1881f36f9df0897e3095484a605c2f79719579c28a5d7443afd2f17d8e", kill_on_drop: false }`
[INFO] [stdout] a4b90b1881f36f9df0897e3095484a605c2f79719579c28a5d7443afd2f17d8e
[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=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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f6a903ffec05c607d496b2826aeb6923df5d6015bee8c6a86c30ef9401581d5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2f6a903ffec05c607d496b2826aeb6923df5d6015bee8c6a86c30ef9401581d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-maze v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `n`
[INFO] [stdout]  --> src/node.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     n: bool,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `e`
[INFO] [stdout]  --> src/node.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     e: bool,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `s`
[INFO] [stdout]  --> src/node.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     s: bool,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `w`
[INFO] [stdout]  --> src/node.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     w: bool
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "2f6a903ffec05c607d496b2826aeb6923df5d6015bee8c6a86c30ef9401581d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f6a903ffec05c607d496b2826aeb6923df5d6015bee8c6a86c30ef9401581d5", kill_on_drop: false }`
[INFO] [stdout] 2f6a903ffec05c607d496b2826aeb6923df5d6015bee8c6a86c30ef9401581d5
[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=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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ad1faa988fd367fd4c7bcc4f2dc211fd5d1c6e68f964c572ca7989c7d2f64e05
[INFO] running `Command { std: "docker" "start" "-a" "ad1faa988fd367fd4c7bcc4f2dc211fd5d1c6e68f964c572ca7989c7d2f64e05", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-maze v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `n`
[INFO] [stdout]  --> src/node.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     n: bool,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `e`
[INFO] [stdout]  --> src/node.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     e: bool,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `s`
[INFO] [stdout]  --> src/node.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     s: bool,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `w`
[INFO] [stdout]  --> src/node.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     w: bool
[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 0.74s
[INFO] running `Command { std: "docker" "inspect" "ad1faa988fd367fd4c7bcc4f2dc211fd5d1c6e68f964c572ca7989c7d2f64e05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad1faa988fd367fd4c7bcc4f2dc211fd5d1c6e68f964c572ca7989c7d2f64e05", kill_on_drop: false }`
[INFO] [stdout] ad1faa988fd367fd4c7bcc4f2dc211fd5d1c6e68f964c572ca7989c7d2f64e05
[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=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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f525d4d949f7ec9533b9e943a2083cd6aa8a9a54116c8bab70fce4cf27f93623
[INFO] running `Command { std: "docker" "start" "-a" "f525d4d949f7ec9533b9e943a2083cd6aa8a9a54116c8bab70fce4cf27f93623", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: field is never read: `n`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/node.rs:2:5
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 2 |     n: bool,
[INFO] [stdout] 
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `e`
[INFO] [stderr]  --> src/node.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     e: bool,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `s`
[INFO] [stderr]  --> src/node.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     s: bool,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `w`
[INFO] [stderr]  --> src/node.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     w: bool
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_maze-e4749ddeb59b4a23
[INFO] running `Command { std: "docker" "inspect" "f525d4d949f7ec9533b9e943a2083cd6aa8a9a54116c8bab70fce4cf27f93623", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f525d4d949f7ec9533b9e943a2083cd6aa8a9a54116c8bab70fce4cf27f93623", kill_on_drop: false }`
[INFO] [stdout] f525d4d949f7ec9533b9e943a2083cd6aa8a9a54116c8bab70fce4cf27f93623