[INFO] cloning repository https://github.com/tranxuanthang/rust-matrix-multiply
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tranxuanthang/rust-matrix-multiply" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftranxuanthang%2Frust-matrix-multiply", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftranxuanthang%2Frust-matrix-multiply'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b2238e022ae8451254b8e78d9f5eaead26d26b9e
[INFO] checking tranxuanthang/rust-matrix-multiply against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftranxuanthang%2Frust-matrix-multiply" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tranxuanthang/rust-matrix-multiply on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tranxuanthang/rust-matrix-multiply
[INFO] finished tweaking git repo https://github.com/tranxuanthang/rust-matrix-multiply
[INFO] tweaked toml for git repo https://github.com/tranxuanthang/rust-matrix-multiply written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/tranxuanthang/rust-matrix-multiply already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af5cb523f8be59d038897d5d1a2d679b0c49b0b5576109969f914d18c414c752
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "af5cb523f8be59d038897d5d1a2d679b0c49b0b5576109969f914d18c414c752", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af5cb523f8be59d038897d5d1a2d679b0c49b0b5576109969f914d18c414c752", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af5cb523f8be59d038897d5d1a2d679b0c49b0b5576109969f914d18c414c752", kill_on_drop: false }`
[INFO] [stdout] af5cb523f8be59d038897d5d1a2d679b0c49b0b5576109969f914d18c414c752
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c5aee45a8dbdf5c0183dc2b99422fcd0929d5e1e9c57e760e91402677b92440a
[INFO] running `Command { std: "docker" "start" "-a" "c5aee45a8dbdf5c0183dc2b99422fcd0929d5e1e9c57e760e91402677b92440a", kill_on_drop: false }`
[INFO] [stderr]     Checking matrix-multiply v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "c5aee45a8dbdf5c0183dc2b99422fcd0929d5e1e9c57e760e91402677b92440a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5aee45a8dbdf5c0183dc2b99422fcd0929d5e1e9c57e760e91402677b92440a", kill_on_drop: false }`
[INFO] [stdout] c5aee45a8dbdf5c0183dc2b99422fcd0929d5e1e9c57e760e91402677b92440a