[INFO] fetching crate rug 1.29.0...
[INFO] testing rug-1.29.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rug 1.29.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rug 1.29.0
[INFO] finished tweaking crates.io crate rug 1.29.0
[INFO] tweaked toml for crates.io crate rug 1.29.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rug 1.29.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rug 1.29.0 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-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d945ede64eb234ef50eb7ab61b26e346f5aa4958265dfbf0f52d8c90471b6922
[INFO] running `Command { std: "docker" "start" "-a" "d945ede64eb234ef50eb7ab61b26e346f5aa4958265dfbf0f52d8c90471b6922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d945ede64eb234ef50eb7ab61b26e346f5aa4958265dfbf0f52d8c90471b6922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d945ede64eb234ef50eb7ab61b26e346f5aa4958265dfbf0f52d8c90471b6922", kill_on_drop: false }`
[INFO] [stdout] d945ede64eb234ef50eb7ab61b26e346f5aa4958265dfbf0f52d8c90471b6922
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eecabeec0e3744773e33ca6542f44300f22b7eb2aa6a76b324ccd019c6267268
[INFO] running `Command { std: "docker" "start" "-a" "eecabeec0e3744773e33ca6542f44300f22b7eb2aa6a76b324ccd019c6267268", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.7.0
[INFO] [stderr]    Compiling libc v0.2.183
[INFO] [stderr]    Compiling libm v0.2.16
[INFO] [stderr]    Compiling rug v1.29.0 (/opt/rustwide/workdir)
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "eecabeec0e3744773e33ca6542f44300f22b7eb2aa6a76b324ccd019c6267268", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eecabeec0e3744773e33ca6542f44300f22b7eb2aa6a76b324ccd019c6267268", kill_on_drop: false }`
[INFO] [stdout] eecabeec0e3744773e33ca6542f44300f22b7eb2aa6a76b324ccd019c6267268
