[INFO] fetching crate unicode-bom 2.0.3...
[INFO] testing unicode-bom-2.0.3 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739
[INFO] extracting crate unicode-bom 2.0.3 into /workspace/builds/worker-7-tc2/source
[INFO] removed /workspace/builds/worker-7-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate unicode-bom 2.0.3
[INFO] finished tweaking crates.io crate unicode-bom 2.0.3
[INFO] tweaked toml for crates.io crate unicode-bom 2.0.3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate unicode-bom 2.0.3 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "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" "+33835004928d3bf65db4d4712e1330766263b0bd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: failed to write /workspace/builds/worker-7-tc2/source/Cargo.lock
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] testing unicode-bom-2.0.3 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739
[INFO] extracting crate unicode-bom 2.0.3 into /workspace/builds/worker-7-tc2/source
[INFO] testing unicode-bom-2.0.3 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739
[INFO] extracting crate unicode-bom 2.0.3 into /workspace/builds/worker-7-tc2/source
[INFO] testing unicode-bom-2.0.3 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739
[INFO] extracting crate unicode-bom 2.0.3 into /workspace/builds/worker-7-tc2/source
[INFO] testing unicode-bom-2.0.3 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739
[INFO] extracting crate unicode-bom 2.0.3 into /workspace/builds/worker-7-tc2/source


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: unable to download unicode-bom version 2.0.3
    2: failed to unpack `unicode-bom-2.0.3/src/test.rs` into `/workspace/builds/worker-7-tc2/source/src/test.rs`
    3: No space left on device (os error 28)