[INFO] fetching crate dynstack 0.4.0...
[INFO] testing dynstack-0.4.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210
[INFO] extracting crate dynstack 0.4.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate dynstack 0.4.0
[INFO] finished tweaking crates.io crate dynstack 0.4.0
[INFO] tweaked toml for crates.io crate dynstack 0.4.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dynstack 0.4.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] warning: failed to write cache, path: /workspace/cargo-home/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/cr/it/criterion, error: No space left on device (os error 28)
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 69 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.1.2 (available: v0.8.2)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[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 time v0.1.45
[INFO] [stderr]   Downloaded simplelog v0.4.4
[INFO] [stderr]   Downloaded criterion-plot v0.1.3
[INFO] [stderr]   Downloaded clap v2.34.0
[INFO] [stderr]   Downloaded ansi_term v0.12.1
[INFO] [stderr]   Downloaded itertools v0.5.10
[INFO] [stderr]   Downloaded rand v0.4.6
[INFO] [stderr]   Downloaded failure v0.1.8
[INFO] [stderr]   Downloaded syn v1.0.109
[INFO] [stderr]   Downloaded rand_core v0.3.1
[INFO] [stderr]   Downloaded rustc-demangle v0.1.27
[INFO] [stderr]   Downloaded itoa v1.0.18
[INFO] [stderr]   Downloaded winapi v0.2.8
[INFO] [stderr]   Downloaded strsim v0.8.0
[INFO] [stderr]   Downloaded winapi-build v0.1.1
[INFO] [stderr]   Downloaded criterion-stats v0.1.3
[INFO] [stderr]   Downloaded libc v0.2.183
[INFO] [stderr] error: failed to unpack package `libc v0.2.183`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack entry at `libc-0.2.183/src/unix/linux_like/android/mod.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libc-0.2.183/src/unix/linux_like/android/mod.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `libc-0.2.183/src/unix/linux_like/android/mod.rs` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libc-0.2.183/src/unix/linux_like/android/mod.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 time v0.1.45
         Downloaded simplelog v0.4.4
         Downloaded criterion-plot v0.1.3
         Downloaded clap v2.34.0
         Downloaded ansi_term v0.12.1
         Downloaded itertools v0.5.10
         Downloaded rand v0.4.6
         Downloaded failure v0.1.8
         Downloaded syn v1.0.109
         Downloaded rand_core v0.3.1
         Downloaded rustc-demangle v0.1.27
         Downloaded itoa v1.0.18
         Downloaded winapi v0.2.8
         Downloaded strsim v0.8.0
         Downloaded winapi-build v0.1.1
         Downloaded criterion-stats v0.1.3
         Downloaded libc v0.2.183
       error: failed to unpack package `libc v0.2.183`
       
       Caused by:
         failed to unpack entry at `libc-0.2.183/src/unix/linux_like/android/mod.rs`
       
       Caused by:
         failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libc-0.2.183/src/unix/linux_like/android/mod.rs`
       
       Caused by:
         failed to unpack `libc-0.2.183/src/unix/linux_like/android/mod.rs` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/libc-0.2.183/src/unix/linux_like/android/mod.rs`
       
       Caused by:
         No space left on device (os error 28)