[INFO] fetching crate maybe-owned-trait 0.2.1...
[INFO] testing maybe-owned-trait-0.2.1 against master#f9988fefd3add01f414f52b414308e7872622fee for pr-155114
[INFO] extracting crate maybe-owned-trait 0.2.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate maybe-owned-trait 0.2.1
[INFO] finished tweaking crates.io crate maybe-owned-trait 0.2.1
[INFO] tweaked toml for crates.io crate maybe-owned-trait 0.2.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate maybe-owned-trait 0.2.1 on toolchain f9988fefd3add01f414f52b414308e7872622fee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "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" "+f9988fefd3add01f414f52b414308e7872622fee" "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 15 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.6 (available: v0.10.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "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 rand_core v0.6.4
[INFO] [stderr]   Downloaded getrandom v0.2.17
[INFO] [stderr]   Downloaded beef v0.5.2
[INFO] [stderr]   Downloaded cfg-if v1.0.4
[INFO] [stderr]   Downloaded rand v0.8.6
[INFO] [stderr]   Downloaded wasi v0.11.1+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded rand_chacha v0.3.1
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.21
[INFO] [stderr]   Downloaded unicode-ident v1.0.24
[INFO] [stderr]   Downloaded proc-macro2 v1.0.106
[INFO] [stderr]   Downloaded zerocopy-derive v0.8.48
[INFO] [stderr]   Downloaded quote v1.0.45
[INFO] [stderr]   Downloaded zerocopy v0.8.48
[INFO] [stderr] error: failed to unpack package `zerocopy v0.8.48`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack entry at `zerocopy-0.8.48/src/pointer/ptr.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/zerocopy-0.8.48/src/pointer/ptr.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `zerocopy-0.8.48/src/pointer/ptr.rs` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/zerocopy-0.8.48/src/pointer/ptr.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
       
           Blocking waiting for file lock on package cache
        Downloading crates ...
         Downloaded rand_core v0.6.4
         Downloaded getrandom v0.2.17
         Downloaded beef v0.5.2
         Downloaded cfg-if v1.0.4
         Downloaded rand v0.8.6
         Downloaded wasi v0.11.1+wasi-snapshot-preview1
         Downloaded rand_chacha v0.3.1
         Downloaded ppv-lite86 v0.2.21
         Downloaded unicode-ident v1.0.24
         Downloaded proc-macro2 v1.0.106
         Downloaded zerocopy-derive v0.8.48
         Downloaded quote v1.0.45
         Downloaded zerocopy v0.8.48
       error: failed to unpack package `zerocopy v0.8.48`
       
       Caused by:
         failed to unpack entry at `zerocopy-0.8.48/src/pointer/ptr.rs`
       
       Caused by:
         failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/zerocopy-0.8.48/src/pointer/ptr.rs`
       
       Caused by:
         failed to unpack `zerocopy-0.8.48/src/pointer/ptr.rs` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/zerocopy-0.8.48/src/pointer/ptr.rs`
       
       Caused by:
         No space left on device (os error 28)