[INFO] fetching crate compute-tau 0.2.3...
[INFO] checking compute-tau-0.2.3 against try#51de2e90f91fdec6cf64ff542a4e15b9c177a797 for pr-147294
[INFO] extracting crate compute-tau 0.2.3 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate compute-tau 0.2.3
[INFO] finished tweaking crates.io crate compute-tau 0.2.3
[INFO] tweaked toml for crates.io crate compute-tau 0.2.3 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate compute-tau 0.2.3 on toolchain 51de2e90f91fdec6cf64ff542a4e15b9c177a797
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate compute-tau 0.2.3 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" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 199d3b8b05002dfa7a872278d6f2105e80756e315c73597f8ce372ebbed0a8ec
[INFO] running `Command { std: "docker" "start" "-a" "199d3b8b05002dfa7a872278d6f2105e80756e315c73597f8ce372ebbed0a8ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "199d3b8b05002dfa7a872278d6f2105e80756e315c73597f8ce372ebbed0a8ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "199d3b8b05002dfa7a872278d6f2105e80756e315c73597f8ce372ebbed0a8ec", kill_on_drop: false }`
[INFO] [stdout] 199d3b8b05002dfa7a872278d6f2105e80756e315c73597f8ce372ebbed0a8ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+51de2e90f91fdec6cf64ff542a4e15b9c177a797" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f406106b20b3fe508bfa1d0c25290d9a3c2c272bbc8927ac76bbec8e355feac5
[INFO] running `Command { std: "docker" "start" "-a" "f406106b20b3fe508bfa1d0c25290d9a3c2c272bbc8927ac76bbec8e355feac5", kill_on_drop: false }`
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.6.5
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling rug v1.27.0
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "f406106b20b3fe508bfa1d0c25290d9a3c2c272bbc8927ac76bbec8e355feac5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f406106b20b3fe508bfa1d0c25290d9a3c2c272bbc8927ac76bbec8e355feac5", kill_on_drop: false }`
[INFO] [stdout] f406106b20b3fe508bfa1d0c25290d9a3c2c272bbc8927ac76bbec8e355feac5