[INFO] fetching crate timfmt 0.2.0...
[INFO] testing timfmt-0.2.0 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739
[INFO] extracting crate timfmt 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate timfmt 0.2.0
[INFO] finished tweaking crates.io crate timfmt 0.2.0
[INFO] tweaked toml for crates.io crate timfmt 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate timfmt 0.2.0 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 timfmt 0.2.0 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]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pad v0.1.6
[INFO] [stderr]   Downloaded aho-corasick v0.7.18
[INFO] [stderr]   Downloaded memchr v2.4.0
[INFO] [stderr]   Downloaded hermit-abi v0.1.19
[INFO] [stderr]   Downloaded atty v0.2.14
[INFO] [stderr]   Downloaded itoa v0.4.7
[INFO] [stderr]   Downloaded cfg-if v1.0.0
[INFO] [stderr]   Downloaded lazy_static v1.4.0
[INFO] [stderr]   Downloaded winapi-util v0.1.5
[INFO] [stderr]   Downloaded cli-table-derive v0.4.4
[INFO] [stderr]   Downloaded cli-table v0.4.6
[INFO] [stderr]   Downloaded unicode-xid v0.2.2
[INFO] [stderr]   Downloaded termcolor v1.1.2
[INFO] [stderr]   Downloaded unicode-width v0.1.8
[INFO] [stderr]   Downloaded globset v0.4.8
[INFO] [stderr]   Downloaded fnv v1.0.7
[INFO] [stderr]   Downloaded same-file v1.0.6
[INFO] [stderr]   Downloaded csv-core v0.1.10
[INFO] [stderr]   Downloaded quote v1.0.9
[INFO] [stderr]   Downloaded grep-cli v0.1.6
[INFO] [stderr]   Downloaded proc-macro2 v1.0.27
[INFO] [stderr]   Downloaded ryu v1.0.5
[INFO] [stderr]   Downloaded log v0.4.14
[INFO] [stderr]   Downloaded serde v1.0.126
[INFO] [stderr]   Downloaded regex-automata v0.1.10
[INFO] [stderr]   Downloaded regex v1.5.4
[INFO] [stderr] error: failed to unpack package `regex v1.5.4`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack entry at `regex-1.5.4/src/prog.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-1.5.4/src/prog.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `regex-1.5.4/src/prog.rs` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-1.5.4/src/prog.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 pad v0.1.6
         Downloaded aho-corasick v0.7.18
         Downloaded memchr v2.4.0
         Downloaded hermit-abi v0.1.19
         Downloaded atty v0.2.14
         Downloaded itoa v0.4.7
         Downloaded cfg-if v1.0.0
         Downloaded lazy_static v1.4.0
         Downloaded winapi-util v0.1.5
         Downloaded cli-table-derive v0.4.4
         Downloaded cli-table v0.4.6
         Downloaded unicode-xid v0.2.2
         Downloaded termcolor v1.1.2
         Downloaded unicode-width v0.1.8
         Downloaded globset v0.4.8
         Downloaded fnv v1.0.7
         Downloaded same-file v1.0.6
         Downloaded csv-core v0.1.10
         Downloaded quote v1.0.9
         Downloaded grep-cli v0.1.6
         Downloaded proc-macro2 v1.0.27
         Downloaded ryu v1.0.5
         Downloaded log v0.4.14
         Downloaded serde v1.0.126
         Downloaded regex-automata v0.1.10
         Downloaded regex v1.5.4
       error: failed to unpack package `regex v1.5.4`
       
       Caused by:
         failed to unpack entry at `regex-1.5.4/src/prog.rs`
       
       Caused by:
         failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-1.5.4/src/prog.rs`
       
       Caused by:
         failed to unpack `regex-1.5.4/src/prog.rs` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/regex-1.5.4/src/prog.rs`
       
       Caused by:
         No space left on device (os error 28)