[INFO] fetching crate test-project 2.3.0...
[INFO] checking test-project-2.3.0 against master#6a9758d4f38d4763bd437c48fa7e5246cecf8d04 for pr-124355
[INFO] extracting crate test-project 2.3.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate test-project 2.3.0 on toolchain 6a9758d4f38d4763bd437c48fa7e5246cecf8d04
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6a9758d4f38d4763bd437c48fa7e5246cecf8d04" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate test-project 2.3.0
[INFO] finished tweaking crates.io crate test-project 2.3.0
[INFO] tweaked toml for crates.io crate test-project 2.3.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6a9758d4f38d4763bd437c48fa7e5246cecf8d04" "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
[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 test-project-2.3.0 against try#99e7531f0d1cf95a50aff9cccb24863963e6bbe2 for pr-124355
[INFO] extracting crate test-project 2.3.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate test-project 2.3.0 on toolchain 99e7531f0d1cf95a50aff9cccb24863963e6bbe2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+99e7531f0d1cf95a50aff9cccb24863963e6bbe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate test-project 2.3.0
[INFO] finished tweaking crates.io crate test-project 2.3.0
[INFO] tweaked toml for crates.io crate test-project 2.3.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+99e7531f0d1cf95a50aff9cccb24863963e6bbe2" "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" "+99e7531f0d1cf95a50aff9cccb24863963e6bbe2" "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 test-project-2.3.0 against try#99e7531f0d1cf95a50aff9cccb24863963e6bbe2 for pr-124355
[INFO] extracting crate test-project 2.3.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate test-project 2.3.0 on toolchain 99e7531f0d1cf95a50aff9cccb24863963e6bbe2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+99e7531f0d1cf95a50aff9cccb24863963e6bbe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate test-project 2.3.0
[INFO] finished tweaking crates.io crate test-project 2.3.0
[INFO] tweaked toml for crates.io crate test-project 2.3.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+99e7531f0d1cf95a50aff9cccb24863963e6bbe2" "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 test-project-2.3.0 against try#99e7531f0d1cf95a50aff9cccb24863963e6bbe2 for pr-124355
[INFO] extracting crate test-project 2.3.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate test-project 2.3.0 on toolchain 99e7531f0d1cf95a50aff9cccb24863963e6bbe2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+99e7531f0d1cf95a50aff9cccb24863963e6bbe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate test-project 2.3.0
[INFO] finished tweaking crates.io crate test-project 2.3.0
[INFO] tweaked toml for crates.io crate test-project 2.3.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+99e7531f0d1cf95a50aff9cccb24863963e6bbe2" "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" "+99e7531f0d1cf95a50aff9cccb24863963e6bbe2" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+99e7531f0d1cf95a50aff9cccb24863963e6bbe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ece985987dab2ca94b994aac6ba3cbdbcdd5560c31e0d981c34f97231ea608f9
[INFO] running `Command { std: "docker" "start" "-a" "ece985987dab2ca94b994aac6ba3cbdbcdd5560c31e0d981c34f97231ea608f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ece985987dab2ca94b994aac6ba3cbdbcdd5560c31e0d981c34f97231ea608f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ece985987dab2ca94b994aac6ba3cbdbcdd5560c31e0d981c34f97231ea608f9", kill_on_drop: false }`
[INFO] [stdout] ece985987dab2ca94b994aac6ba3cbdbcdd5560c31e0d981c34f97231ea608f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+99e7531f0d1cf95a50aff9cccb24863963e6bbe2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2eed263357213127d0569de5bddd1e295f93d5f1c94efdff71f7155c8489a3c5
[INFO] running `Command { std: "docker" "start" "-a" "2eed263357213127d0569de5bddd1e295f93d5f1c94efdff71f7155c8489a3c5", kill_on_drop: false }`
[INFO] [stderr]     Checking test-project v2.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "2eed263357213127d0569de5bddd1e295f93d5f1c94efdff71f7155c8489a3c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eed263357213127d0569de5bddd1e295f93d5f1c94efdff71f7155c8489a3c5", kill_on_drop: false }`
[INFO] [stdout] 2eed263357213127d0569de5bddd1e295f93d5f1c94efdff71f7155c8489a3c5