[INFO] cloning repository https://github.com/drbh/rarb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/drbh/rarb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrbh%2Frarb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrbh%2Frarb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c3d217ffef3fef931f7f6b2cab257698b965a740
[INFO] checking drbh/rarb against master#43d9f3859e0204e764161ee085a360274b5f3e9a for pr-97346
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrbh%2Frarb" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/drbh/rarb on toolchain 43d9f3859e0204e764161ee085a360274b5f3e9a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+43d9f3859e0204e764161ee085a360274b5f3e9a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/drbh/rarb
[INFO] finished tweaking git repo https://github.com/drbh/rarb
[INFO] tweaked toml for git repo https://github.com/drbh/rarb written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/drbh/rarb already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+43d9f3859e0204e764161ee085a360274b5f3e9a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v1.0.32
[INFO] [stderr]   Downloaded proc-macro2 v0.4.20
[INFO] [stderr]   Downloaded serde v1.0.80
[INFO] [stderr]   Downloaded quote v0.6.9
[INFO] [stderr]   Downloaded serde_derive v1.0.80
[INFO] [stderr]   Downloaded syn v0.15.18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+43d9f3859e0204e764161ee085a360274b5f3e9a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e37056e093e1a2b9486704bd7a3e8e557ef2c673b2cec3f5b9d63f29bcd793f
[INFO] running `Command { std: "docker" "start" "-a" "9e37056e093e1a2b9486704bd7a3e8e557ef2c673b2cec3f5b9d63f29bcd793f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e37056e093e1a2b9486704bd7a3e8e557ef2c673b2cec3f5b9d63f29bcd793f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e37056e093e1a2b9486704bd7a3e8e557ef2c673b2cec3f5b9d63f29bcd793f", kill_on_drop: false }`
[INFO] [stdout] 9e37056e093e1a2b9486704bd7a3e8e557ef2c673b2cec3f5b9d63f29bcd793f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+43d9f3859e0204e764161ee085a360274b5f3e9a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7aa057a8628238d683bf68abc10c7fcbecab20594d7f02d9cec01926f6c1061d
[INFO] running `Command { std: "docker" "start" "-a" "7aa057a8628238d683bf68abc10c7fcbecab20594d7f02d9cec01926f6c1061d", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]    Compiling quote v0.6.9
[INFO] [stderr]    Compiling syn v0.15.18
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking serde_json v1.0.32
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]     Checking rarb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.00s
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "7aa057a8628238d683bf68abc10c7fcbecab20594d7f02d9cec01926f6c1061d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aa057a8628238d683bf68abc10c7fcbecab20594d7f02d9cec01926f6c1061d", kill_on_drop: false }`
[INFO] [stdout] 7aa057a8628238d683bf68abc10c7fcbecab20594d7f02d9cec01926f6c1061d