[INFO] fetching crate scafalra 1.4.1...
[INFO] testing scafalra-1.4.1 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739
[INFO] extracting crate scafalra 1.4.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate scafalra 1.4.1
[INFO] finished tweaking crates.io crate scafalra 1.4.1
[INFO] tweaked toml for crates.io crate scafalra 1.4.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate scafalra 1.4.1 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate scafalra 1.4.1 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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--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] warning: failed to write cache, path: /workspace/cargo-home/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/ch/ro/chrono, error: No space left on device (os error 28)
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pkg-config v0.3.32
[INFO] [stderr] error: No space left on device (os error 28)


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: command failed: exit status: 101
       
           Blocking waiting for file lock on package cache
           Updating crates.io index
       warning: failed to write cache, path: /workspace/cargo-home/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/ch/ro/chrono, error: No space left on device (os error 28)
           Blocking waiting for file lock on package cache
        Downloading crates ...
         Downloaded pkg-config v0.3.32
       error: No space left on device (os error 28)