[INFO] cloning repository https://github.com/bbshadow/LabGen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bbshadow/LabGen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbbshadow%2FLabGen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbbshadow%2FLabGen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8407c46be4e30c8b9544964e476b25978200d230
[INFO] checking bbshadow/LabGen against try#4797991aa2efb6d658150f10425b3f3b5d10eceb for pr-143193
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbbshadow%2FLabGen" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bbshadow/LabGen
[INFO] finished tweaking git repo https://github.com/bbshadow/LabGen
[INFO] tweaked toml for git repo https://github.com/bbshadow/LabGen written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bbshadow/LabGen on toolchain 4797991aa2efb6d658150f10425b3f3b5d10eceb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bbshadow/LabGen already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e57433807f871d6c453a5a1df69bca5f986ae8264d9e2fa7ea63a0374454f297
[INFO] running `Command { std: "docker" "start" "-a" "e57433807f871d6c453a5a1df69bca5f986ae8264d9e2fa7ea63a0374454f297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e57433807f871d6c453a5a1df69bca5f986ae8264d9e2fa7ea63a0374454f297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e57433807f871d6c453a5a1df69bca5f986ae8264d9e2fa7ea63a0374454f297", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8dc676a07f5854e8780a3d2905393186f31f0aff007a5366286c165f2274c3e3
[INFO] running `Command { std: "docker" "start" "-a" "8dc676a07f5854e8780a3d2905393186f31f0aff007a5366286c165f2274c3e3", kill_on_drop: false }`
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[INFO] [stdout] warning: method `set_wall` is never used
[INFO] [stdout]   --> src/lab.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl LabTile {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub fn set_wall(&mut self, direction: usize, value: bool) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clear_terminal` is never used
[INFO] [stdout]   --> src/lab.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn clear_terminal() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_shortest_path` is never used
[INFO] [stdout]    --> src/lab.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 182 | pub fn find_shortest_path(lab: &Lab, entrance: usize, exit: usize) -> Option<Vec<usize>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_labyrinth_with_path` is never used
[INFO] [stdout]    --> src/lab.rs:248:8
[INFO] [stdout]     |
[INFO] [stdout] 248 | pub fn print_labyrinth_with_path(lab: &Lab, visited: &HashSet<usize>, entrance: usize, exit: usize, current_cell: Option<(usize, u8)>, sh...
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_wall` is never used
[INFO] [stdout]   --> src/lab.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl LabTile {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub fn set_wall(&mut self, direction: usize, value: bool) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clear_terminal` is never used
[INFO] [stdout]   --> src/lab.rs:34:8
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub fn clear_terminal() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_shortest_path` is never used
[INFO] [stdout]    --> src/lab.rs:182:8
[INFO] [stdout]     |
[INFO] [stdout] 182 | pub fn find_shortest_path(lab: &Lab, entrance: usize, exit: usize) -> Option<Vec<usize>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_labyrinth_with_path` is never used
[INFO] [stdout]    --> src/lab.rs:248:8
[INFO] [stdout]     |
[INFO] [stdout] 248 | pub fn print_labyrinth_with_path(lab: &Lab, visited: &HashSet<usize>, entrance: usize, exit: usize, current_cell: Option<(usize, u8)>, sh...
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 41.22s
[INFO] running `Command { std: "docker" "inspect" "8dc676a07f5854e8780a3d2905393186f31f0aff007a5366286c165f2274c3e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dc676a07f5854e8780a3d2905393186f31f0aff007a5366286c165f2274c3e3", kill_on_drop: false }`
[INFO] [stdout] 8dc676a07f5854e8780a3d2905393186f31f0aff007a5366286c165f2274c3e3