[INFO] fetching crate mono-rs 0.1.10...
[INFO] checking mono-rs-0.1.10 against try#24cd45d7714ba43afd4b8e62fb677b069b21c4a5 for pr-129543
[INFO] extracting crate mono-rs 0.1.10 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate mono-rs 0.1.10 on toolchain 24cd45d7714ba43afd4b8e62fb677b069b21c4a5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mono-rs 0.1.10
[INFO] finished tweaking crates.io crate mono-rs 0.1.10
[INFO] tweaked toml for crates.io crate mono-rs 0.1.10 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 101a53802d499929a523a9c639ca7b48fc3ac31aadb86b16c366d6cb399a6eff
[INFO] running `Command { std: "docker" "start" "-a" "101a53802d499929a523a9c639ca7b48fc3ac31aadb86b16c366d6cb399a6eff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "101a53802d499929a523a9c639ca7b48fc3ac31aadb86b16c366d6cb399a6eff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "101a53802d499929a523a9c639ca7b48fc3ac31aadb86b16c366d6cb399a6eff", kill_on_drop: false }`
[INFO] [stdout] 101a53802d499929a523a9c639ca7b48fc3ac31aadb86b16c366d6cb399a6eff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89cba23a601e65351b834528b0d1edd14d00acaf63720c7969b449e1cc14d43c
[INFO] running `Command { std: "docker" "start" "-a" "89cba23a601e65351b834528b0d1edd14d00acaf63720c7969b449e1cc14d43c", kill_on_drop: false }`
[INFO] [stderr]    Compiling mono-rs v0.1.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Exception` is never constructed
[INFO] [stdout]  --> src/exception.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Exception {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Thread` is never constructed
[INFO] [stdout]  --> src/thread.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Thread {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Exception` is never constructed
[INFO] [stdout]  --> src/exception.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Exception {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Thread` is never constructed
[INFO] [stdout]  --> src/thread.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct Thread {
[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 1.56s
[INFO] running `Command { std: "docker" "inspect" "89cba23a601e65351b834528b0d1edd14d00acaf63720c7969b449e1cc14d43c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89cba23a601e65351b834528b0d1edd14d00acaf63720c7969b449e1cc14d43c", kill_on_drop: false }`
[INFO] [stdout] 89cba23a601e65351b834528b0d1edd14d00acaf63720c7969b449e1cc14d43c