[INFO] fetching crate ambient_api_core 0.3.1...
[INFO] checking ambient_api_core-0.3.1 against master#fd0c901b00ee1e08a250039cdb90258603497e20 for pr-153692
[INFO] extracting crate ambient_api_core 0.3.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate ambient_api_core 0.3.1
[INFO] finished tweaking crates.io crate ambient_api_core 0.3.1
[INFO] tweaked toml for crates.io crate ambient_api_core 0.3.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ambient_api_core 0.3.1 on toolchain fd0c901b00ee1e08a250039cdb90258603497e20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fd0c901b00ee1e08a250039cdb90258603497e20" "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" "+fd0c901b00ee1e08a250039cdb90258603497e20" "generate-lockfile" "--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


overridden task result to prepare-fail:timeout

Caused by:
    0: uncategorized prepare error
    1: no output for 300 seconds