[INFO] fetching crate tg-kernel-vm 0.4.2-preview.1...
[INFO] testing tg-kernel-vm-0.4.2-preview.1 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210
[INFO] extracting crate tg-kernel-vm 0.4.2-preview.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate tg-kernel-vm 0.4.2-preview.1
[INFO] finished tweaking crates.io crate tg-kernel-vm 0.4.2-preview.1
[INFO] tweaked toml for crates.io crate tg-kernel-vm 0.4.2-preview.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tg-kernel-vm 0.4.2-preview.1 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tg-kernel-vm 0.4.2-preview.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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cfg-if v1.0.4
[INFO] [stderr]   Downloaded spin v0.9.8
[INFO] [stderr] error: failed to unpack package `spin v0.9.8`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack entry at `spin-0.9.8/src/rwlock.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/spin-0.9.8/src/rwlock.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `spin-0.9.8/src/rwlock.rs` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/spin-0.9.8/src/rwlock.rs`
[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
       
           Updating crates.io index
           Blocking waiting for file lock on package cache
        Downloading crates ...
         Downloaded cfg-if v1.0.4
         Downloaded spin v0.9.8
       error: failed to unpack package `spin v0.9.8`
       
       Caused by:
         failed to unpack entry at `spin-0.9.8/src/rwlock.rs`
       
       Caused by:
         failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/spin-0.9.8/src/rwlock.rs`
       
       Caused by:
         failed to unpack `spin-0.9.8/src/rwlock.rs` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/spin-0.9.8/src/rwlock.rs`
       
       Caused by:
         No space left on device (os error 28)