[INFO] fetching crate simple_peg 0.3.0...
[INFO] testing simple_peg-0.3.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate simple_peg 0.3.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate simple_peg 0.3.0
[INFO] finished tweaking crates.io crate simple_peg 0.3.0
[INFO] tweaked toml for crates.io crate simple_peg 0.3.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate simple_peg 0.3.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate simple_peg 0.3.0 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5fa03163294fce89670ad36e7f608a8e04ac6a375a5e46e70e20a8bf1e48b03f
[INFO] running `Command { std: "docker" "start" "-a" "5fa03163294fce89670ad36e7f608a8e04ac6a375a5e46e70e20a8bf1e48b03f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fa03163294fce89670ad36e7f608a8e04ac6a375a5e46e70e20a8bf1e48b03f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fa03163294fce89670ad36e7f608a8e04ac6a375a5e46e70e20a8bf1e48b03f", kill_on_drop: false }`
[INFO] [stdout] 5fa03163294fce89670ad36e7f608a8e04ac6a375a5e46e70e20a8bf1e48b03f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b0a4c64eaa2a1ed8d3f551411860f18903e454c430534e37da20fba954f0f70
[INFO] running `Command { std: "docker" "start" "-a" "3b0a4c64eaa2a1ed8d3f551411860f18903e454c430534e37da20fba954f0f70", kill_on_drop: false }`
[INFO] [stderr] Compiling simple_peg v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `stack`
[INFO] [stdout] --> src/peg.rs:91:13
[INFO] [stdout] |
[INFO] [stdout] 91 | let mut stack: Vec