[INFO] fetching crate tstr_proc_macros 0.3.0...
[INFO] testing tstr_proc_macros-0.3.0 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739
[INFO] extracting crate tstr_proc_macros 0.3.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate tstr_proc_macros 0.3.0
[INFO] finished tweaking crates.io crate tstr_proc_macros 0.3.0
[INFO] tweaked toml for crates.io crate tstr_proc_macros 0.3.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tstr_proc_macros 0.3.0 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 tstr_proc_macros 0.3.0 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]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-ident v1.0.18
[INFO] [stderr] error: failed to unpack package `unicode-ident v1.0.18`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to create directory `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/unicode-ident-1.0.18`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   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
       
        Downloading crates ...
         Downloaded unicode-ident v1.0.18
       error: failed to unpack package `unicode-ident v1.0.18`
       
       Caused by:
         failed to create directory `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/unicode-ident-1.0.18`
       
       Caused by:
         No space left on device (os error 28)