[INFO] fetching crate serial2 0.2.28...
[INFO] checking serial2-0.2.28 against master#4ecd70ddd1039a3954056c1071e40278048476fa for pr-137633
[INFO] extracting crate serial2 0.2.28 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate serial2 0.2.28 on toolchain 4ecd70ddd1039a3954056c1071e40278048476fa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4ecd70ddd1039a3954056c1071e40278048476fa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serial2 0.2.28
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate serial2 0.2.28
[INFO] tweaked toml for crates.io crate serial2 0.2.28 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate serial2 0.2.28 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4ecd70ddd1039a3954056c1071e40278048476fa" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assert2 v0.3.11
[INFO] [stderr] error: No space left on device (os error 28)


command failed: exit status: 101

    Blocking waiting for file lock on package cache
    Blocking waiting for file lock on package cache
 Downloading crates ...
  Downloaded assert2 v0.3.11
error: No space left on device (os error 28)