[INFO] cloning repository https://github.com/dclamage/simple-loop-solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dclamage/simple-loop-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdclamage%2Fsimple-loop-solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdclamage%2Fsimple-loop-solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b11688046a1832ea53b16f290023fa3b615d898
[INFO] checking dclamage/simple-loop-solver against master#9f48dedc9763334a587c66558974635807a113ed for pr-137394
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdclamage%2Fsimple-loop-solver" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dclamage/simple-loop-solver on toolchain 9f48dedc9763334a587c66558974635807a113ed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dclamage/simple-loop-solver
[INFO] finished tweaking git repo https://github.com/dclamage/simple-loop-solver
[INFO] tweaked toml for git repo https://github.com/dclamage/simple-loop-solver written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dclamage/simple-loop-solver 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" "+9f48dedc9763334a587c66558974635807a113ed" "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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f6b8a5f18403c63ca47f9052cc705282d8012cfdbf89c9bc423028171a949e6
[INFO] running `Command { std: "docker" "start" "-a" "8f6b8a5f18403c63ca47f9052cc705282d8012cfdbf89c9bc423028171a949e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f6b8a5f18403c63ca47f9052cc705282d8012cfdbf89c9bc423028171a949e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f6b8a5f18403c63ca47f9052cc705282d8012cfdbf89c9bc423028171a949e6", kill_on_drop: false }`
[INFO] [stdout] 8f6b8a5f18403c63ca47f9052cc705282d8012cfdbf89c9bc423028171a949e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ece7849c268a43695e6a692ac5ee4abc118620ecd95c8a1afb62a5216226698
[INFO] running `Command { std: "docker" "start" "-a" "6ece7849c268a43695e6a692ac5ee4abc118620ecd95c8a1afb62a5216226698", kill_on_drop: false }`
[INFO] [stderr]     Checking simple-loop-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `original_grid` is never read
[INFO] [stdout]    --> src/main.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 154 | struct SloopEdges {
[INFO] [stdout]     |        ---------- field in this struct
[INFO] [stdout] 155 |     original_grid: u64,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SloopEdges` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `path_to_string` is never used
[INFO] [stdout]    --> src/main.rs:289:8
[INFO] [stdout]     |
[INFO] [stdout] 163 | impl SloopEdges {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 289 |     fn path_to_string(&self) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `original_grid` is never read
[INFO] [stdout]    --> src/main.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 154 | struct SloopEdges {
[INFO] [stdout]     |        ---------- field in this struct
[INFO] [stdout] 155 |     original_grid: u64,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SloopEdges` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `path_to_string` is never used
[INFO] [stdout]    --> src/main.rs:289:8
[INFO] [stdout]     |
[INFO] [stdout] 163 | impl SloopEdges {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 289 |     fn path_to_string(&self) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "6ece7849c268a43695e6a692ac5ee4abc118620ecd95c8a1afb62a5216226698", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ece7849c268a43695e6a692ac5ee4abc118620ecd95c8a1afb62a5216226698", kill_on_drop: false }`
[INFO] [stdout] 6ece7849c268a43695e6a692ac5ee4abc118620ecd95c8a1afb62a5216226698