[INFO] fetching crate ad-hoc-iter 0.2.3...
[INFO] checking ad-hoc-iter-0.2.3 against try#8a0378607d6b34c242e3bfa75554871be641864b for pr-143028
[INFO] extracting crate ad-hoc-iter 0.2.3 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate ad-hoc-iter 0.2.3
[INFO] finished tweaking crates.io crate ad-hoc-iter 0.2.3
[INFO] tweaked toml for crates.io crate ad-hoc-iter 0.2.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ad-hoc-iter 0.2.3 on toolchain 8a0378607d6b34c242e3bfa75554871be641864b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "generate-lockfile" "--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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "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
[INFO] checking ad-hoc-iter-0.2.3 against try#8a0378607d6b34c242e3bfa75554871be641864b for pr-143028
[INFO] extracting crate ad-hoc-iter 0.2.3 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate ad-hoc-iter 0.2.3
[INFO] finished tweaking crates.io crate ad-hoc-iter 0.2.3
[INFO] tweaked toml for crates.io crate ad-hoc-iter 0.2.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ad-hoc-iter 0.2.3 on toolchain 8a0378607d6b34c242e3bfa75554871be641864b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "generate-lockfile" "--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 ad-hoc-iter-0.2.3 against try#8a0378607d6b34c242e3bfa75554871be641864b for pr-143028
[INFO] extracting crate ad-hoc-iter 0.2.3 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate ad-hoc-iter 0.2.3
[INFO] finished tweaking crates.io crate ad-hoc-iter 0.2.3
[INFO] tweaked toml for crates.io crate ad-hoc-iter 0.2.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ad-hoc-iter 0.2.3 on toolchain 8a0378607d6b34c242e3bfa75554871be641864b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "generate-lockfile" "--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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bdb5b8eae94f97d9c1c8e119d3becd779f402a45d0e765a0e6a366df40a41860
[INFO] running `Command { std: "docker" "start" "-a" "bdb5b8eae94f97d9c1c8e119d3becd779f402a45d0e765a0e6a366df40a41860", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdb5b8eae94f97d9c1c8e119d3becd779f402a45d0e765a0e6a366df40a41860", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdb5b8eae94f97d9c1c8e119d3becd779f402a45d0e765a0e6a366df40a41860", kill_on_drop: false }`
[INFO] [stdout] bdb5b8eae94f97d9c1c8e119d3becd779f402a45d0e765a0e6a366df40a41860
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13ed90a2d80da98b505a6511ac7e32782d13135fd64dfb5672a534d4e4267b14
[INFO] running `Command { std: "docker" "start" "-a" "13ed90a2d80da98b505a6511ac7e32782d13135fd64dfb5672a534d4e4267b14", kill_on_drop: false }`
[INFO] [stderr]     Checking ad-hoc-iter v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "13ed90a2d80da98b505a6511ac7e32782d13135fd64dfb5672a534d4e4267b14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13ed90a2d80da98b505a6511ac7e32782d13135fd64dfb5672a534d4e4267b14", kill_on_drop: false }`
[INFO] [stdout] 13ed90a2d80da98b505a6511ac7e32782d13135fd64dfb5672a534d4e4267b14