[INFO] cloning repository https://github.com/riginding/rust-hero
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/riginding/rust-hero" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Friginding%2Frust-hero", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Friginding%2Frust-hero'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e626ab5b2a930cc8e0f837af2e6e76c76638463
[INFO] checking riginding/rust-hero against master#430feb24a46993e5073c1bb1b39da190d83fa2bf for pr-78363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Friginding%2Frust-hero" "/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/riginding/rust-hero on toolchain 430feb24a46993e5073c1bb1b39da190d83fa2bf
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/riginding/rust-hero
[INFO] finished tweaking git repo https://github.com/riginding/rust-hero
[INFO] tweaked toml for git repo https://github.com/riginding/rust-hero written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/riginding/rust-hero already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35ab87ccf4c0eed1125d1d2d675258e2a2ec926faf4e74a097d0669c1d0fe72b
[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" "35ab87ccf4c0eed1125d1d2d675258e2a2ec926faf4e74a097d0669c1d0fe72b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35ab87ccf4c0eed1125d1d2d675258e2a2ec926faf4e74a097d0669c1d0fe72b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35ab87ccf4c0eed1125d1d2d675258e2a2ec926faf4e74a097d0669c1d0fe72b", kill_on_drop: false }`
[INFO] [stdout] 35ab87ccf4c0eed1125d1d2d675258e2a2ec926faf4e74a097d0669c1d0fe72b
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+430feb24a46993e5073c1bb1b39da190d83fa2bf" "check" "--frozen" "--all" "--all-targets" "--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] 6a22ef2e8d9e61eb8c4bfabe843a6ffe4b09376426fe1f699a9dde7183f3a0f8
[INFO] running `Command { std: "docker" "start" "-a" "6a22ef2e8d9e61eb8c4bfabe843a6ffe4b09376426fe1f699a9dde7183f3a0f8", kill_on_drop: false }`
[INFO] [stderr]     Checking rusthero v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `rust_hero_solve`
[INFO] [stdout]   --> src/main.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn rust_hero_solve(input: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `recursive_super_duper_function`
[INFO] [stdout]   --> src/main.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn recursive_super_duper_function(input: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "6a22ef2e8d9e61eb8c4bfabe843a6ffe4b09376426fe1f699a9dde7183f3a0f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a22ef2e8d9e61eb8c4bfabe843a6ffe4b09376426fe1f699a9dde7183f3a0f8", kill_on_drop: false }`
[INFO] [stdout] 6a22ef2e8d9e61eb8c4bfabe843a6ffe4b09376426fe1f699a9dde7183f3a0f8