[INFO] cloning repository https://github.com/ibado/algorust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ibado/algorust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fibado%2Falgorust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fibado%2Falgorust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 76c5a5b3b7c923860ffe79d61451baa186a2c547
[INFO] checking ibado/algorust against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fibado%2Falgorust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ibado/algorust on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ibado/algorust
[INFO] finished tweaking git repo https://github.com/ibado/algorust
[INFO] tweaked toml for git repo https://github.com/ibado/algorust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ibado/algorust 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e48e9d98ebef5dccdc1022da9ac29483efc8de1ef393a54597604361d2707e91
[INFO] running `Command { std: "docker" "start" "-a" "e48e9d98ebef5dccdc1022da9ac29483efc8de1ef393a54597604361d2707e91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e48e9d98ebef5dccdc1022da9ac29483efc8de1ef393a54597604361d2707e91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e48e9d98ebef5dccdc1022da9ac29483efc8de1ef393a54597604361d2707e91", kill_on_drop: false }`
[INFO] [stdout] e48e9d98ebef5dccdc1022da9ac29483efc8de1ef393a54597604361d2707e91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c99867fb05b648a132f831b8f491b1129621dde00f518afb9058f8cbf9f0496c
[INFO] running `Command { std: "docker" "start" "-a" "c99867fb05b648a132f831b8f491b1129621dde00f518afb9058f8cbf9f0496c", kill_on_drop: false }`
[INFO] [stderr]     Checking algorust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `LRUCache` is never constructed
[INFO] [stdout]  --> src/lru_cache.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct LRUCache<K: Eq + Hash, V> {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get`, and `put` are never used
[INFO] [stdout]   --> src/lru_cache.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl<K: Eq + Hash, V> LRUCache<K, V> {
[INFO] [stdout]    | ------------------------------------ associated items in this implementation
[INFO] [stdout] 15 |     pub fn new(capacity: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn get(&mut self, key: &K) -> Option<&V> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn put(&mut self, key: K, value: V) {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "c99867fb05b648a132f831b8f491b1129621dde00f518afb9058f8cbf9f0496c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c99867fb05b648a132f831b8f491b1129621dde00f518afb9058f8cbf9f0496c", kill_on_drop: false }`
[INFO] [stdout] c99867fb05b648a132f831b8f491b1129621dde00f518afb9058f8cbf9f0496c