[INFO] fetching crate z39-solver 1.0.1...
[INFO] checking z39-solver-1.0.1 against 65b20a97de33e9e59992793a144aef2950c48c76 for pr-154715
[INFO] extracting crate z39-solver 1.0.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate z39-solver 1.0.1
[INFO] finished tweaking crates.io crate z39-solver 1.0.1
[INFO] tweaked toml for crates.io crate z39-solver 1.0.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate z39-solver 1.0.1 on toolchain 65b20a97de33e9e59992793a144aef2950c48c76
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+65b20a97de33e9e59992793a144aef2950c48c76" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate z39-solver 1.0.1 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" "+65b20a97de33e9e59992793a144aef2950c48c76" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:00c5645b54fe3ce5dae1417175e3c7fb6a6646c021d554ecd63a097b8b9f3602" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 28ee3213bb6902f20bf90f0b87b4a0236acd031f28a34ea435f33b93ff57b9c9
[INFO] running `Command { std: "docker" "start" "28ee3213bb6902f20bf90f0b87b4a0236acd031f28a34ea435f33b93ff57b9c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28ee3213bb6902f20bf90f0b87b4a0236acd031f28a34ea435f33b93ff57b9c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "28ee3213bb6902f20bf90f0b87b4a0236acd031f28a34ea435f33b93ff57b9c9" "/opt/rustwide/cargo-home/bin/cargo" "+65b20a97de33e9e59992793a144aef2950c48c76" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28ee3213bb6902f20bf90f0b87b4a0236acd031f28a34ea435f33b93ff57b9c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "28ee3213bb6902f20bf90f0b87b4a0236acd031f28a34ea435f33b93ff57b9c9" "/opt/rustwide/cargo-home/bin/cargo" "+65b20a97de33e9e59992793a144aef2950c48c76" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]     Checking z39-solver v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `download_and_extract` is never used
[INFO] [stdout]   --> src/solver.rs:94:10
[INFO] [stdout]    |
[INFO] [stdout] 94 | async fn download_and_extract(url: &str, cache_dir: &PathBuf) -> anyhow::Result<()> {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `download_and_extract` is never used
[INFO] [stdout]   --> src/solver.rs:94:10
[INFO] [stdout]    |
[INFO] [stdout] 94 | async fn download_and_extract(url: &str, cache_dir: &PathBuf) -> anyhow::Result<()> {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.37s
[INFO] running `Command { std: "docker" "inspect" "28ee3213bb6902f20bf90f0b87b4a0236acd031f28a34ea435f33b93ff57b9c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28ee3213bb6902f20bf90f0b87b4a0236acd031f28a34ea435f33b93ff57b9c9", kill_on_drop: false }`
[INFO] [stdout] 28ee3213bb6902f20bf90f0b87b4a0236acd031f28a34ea435f33b93ff57b9c9
