[INFO] fetching crate rust_observer 0.2.2...
[INFO] checking rust_observer-0.2.2 against master#f8f6997469237299c1d60814c7b9828602a1f8e4 for pr-143808
[INFO] extracting crate rust_observer 0.2.2 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate rust_observer 0.2.2
[INFO] finished tweaking crates.io crate rust_observer 0.2.2
[INFO] tweaked toml for crates.io crate rust_observer 0.2.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust_observer 0.2.2 on toolchain f8f6997469237299c1d60814c7b9828602a1f8e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "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" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 189 packages to latest compatible versions
[INFO] [stderr]       Adding sysinfo v0.31.4 (available: v0.36.1)
[INFO] [stderr]       Adding toml v0.8.23 (available: v0.9.2)
[INFO] [stderr]       Adding tonic v0.12.3 (available: v0.13.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8f6997469237299c1d60814c7b9828602a1f8e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rust_observer_trace_macro v0.1.1
[INFO] [stderr] error: No space left on device (os error 28)


command failed: exit status: 101

    Blocking waiting for file lock on package cache
 Downloading crates ...
  Downloaded rust_observer_trace_macro v0.1.1
error: No space left on device (os error 28)