[INFO] cloning repository https://github.com/timHau/gauss-seidel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/timHau/gauss-seidel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtimHau%2Fgauss-seidel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtimHau%2Fgauss-seidel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 16addd81a18d072be46cc233ddce26cb2a4323ab
[INFO] checking timHau/gauss-seidel against master#d3dd34a1d4a7e25a92a0d65994bb01a5d17c59ee for pr-127481-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtimHau%2Fgauss-seidel" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/timHau/gauss-seidel on toolchain d3dd34a1d4a7e25a92a0d65994bb01a5d17c59ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d3dd34a1d4a7e25a92a0d65994bb01a5d17c59ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/timHau/gauss-seidel
[INFO] finished tweaking git repo https://github.com/timHau/gauss-seidel
[INFO] tweaked toml for git repo https://github.com/timHau/gauss-seidel written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/timHau/gauss-seidel 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" "+d3dd34a1d4a7e25a92a0d65994bb01a5d17c59ee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking timHau/gauss-seidel against try#3d1ad905b56a11961be37df7dc5e56be58204dd8 for pr-127481-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtimHau%2Fgauss-seidel" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/timHau/gauss-seidel on toolchain 3d1ad905b56a11961be37df7dc5e56be58204dd8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3d1ad905b56a11961be37df7dc5e56be58204dd8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/timHau/gauss-seidel
[INFO] finished tweaking git repo https://github.com/timHau/gauss-seidel
[INFO] tweaked toml for git repo https://github.com/timHau/gauss-seidel written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/timHau/gauss-seidel 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" "+3d1ad905b56a11961be37df7dc5e56be58204dd8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking timHau/gauss-seidel against try#3d1ad905b56a11961be37df7dc5e56be58204dd8 for pr-127481-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FtimHau%2Fgauss-seidel" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/timHau/gauss-seidel on toolchain 3d1ad905b56a11961be37df7dc5e56be58204dd8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3d1ad905b56a11961be37df7dc5e56be58204dd8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/timHau/gauss-seidel
[INFO] finished tweaking git repo https://github.com/timHau/gauss-seidel
[INFO] tweaked toml for git repo https://github.com/timHau/gauss-seidel written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/timHau/gauss-seidel 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" "+3d1ad905b56a11961be37df7dc5e56be58204dd8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+3d1ad905b56a11961be37df7dc5e56be58204dd8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ae6b975cfe40480a7b58e27123e03f2250d6cfb21d60dc7e0b6fa3cefa825e3
[INFO] running `Command { std: "docker" "start" "-a" "5ae6b975cfe40480a7b58e27123e03f2250d6cfb21d60dc7e0b6fa3cefa825e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ae6b975cfe40480a7b58e27123e03f2250d6cfb21d60dc7e0b6fa3cefa825e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ae6b975cfe40480a7b58e27123e03f2250d6cfb21d60dc7e0b6fa3cefa825e3", kill_on_drop: false }`
[INFO] [stdout] 5ae6b975cfe40480a7b58e27123e03f2250d6cfb21d60dc7e0b6fa3cefa825e3
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+3d1ad905b56a11961be37df7dc5e56be58204dd8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9af133b05dbc59391ec85b75fae774bb3fcdfa037c814ee04d90e2af49d6089e
[INFO] running `Command { std: "docker" "start" "-a" "9af133b05dbc59391ec85b75fae774bb3fcdfa037c814ee04d90e2af49d6089e", kill_on_drop: false }`
[INFO] [stderr]     Checking gauss-seidel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "9af133b05dbc59391ec85b75fae774bb3fcdfa037c814ee04d90e2af49d6089e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9af133b05dbc59391ec85b75fae774bb3fcdfa037c814ee04d90e2af49d6089e", kill_on_drop: false }`
[INFO] [stdout] 9af133b05dbc59391ec85b75fae774bb3fcdfa037c814ee04d90e2af49d6089e