[INFO] fetching crate async-mailer-smtp 0.4.0...
[INFO] checking async-mailer-smtp-0.4.0 against master#fd17deacce374a4185c882795be162e17b557050 for pr-138001
[INFO] extracting crate async-mailer-smtp 0.4.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate async-mailer-smtp 0.4.0 on toolchain fd17deacce374a4185c882795be162e17b557050
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fd17deacce374a4185c882795be162e17b557050" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-mailer-smtp 0.4.0
[INFO] finished tweaking crates.io crate async-mailer-smtp 0.4.0
[INFO] tweaked toml for crates.io crate async-mailer-smtp 0.4.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fd17deacce374a4185c882795be162e17b557050" "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


no output for 300 seconds