[INFO] cloning repository https://github.com/rand-chain/SeqPoW
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rand-chain/SeqPoW" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frand-chain%2FSeqPoW", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frand-chain%2FSeqPoW'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cecba92ced2e090e05107b709bbe3866f1006812
[INFO] checking rand-chain/SeqPoW against master#336209eef13882bd1e211b24779584cb7ef911eb for pr-129249
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frand-chain%2FSeqPoW" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rand-chain/SeqPoW on toolchain 336209eef13882bd1e211b24779584cb7ef911eb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rand-chain/SeqPoW
[INFO] finished tweaking git repo https://github.com/rand-chain/SeqPoW
[INFO] tweaked toml for git repo https://github.com/rand-chain/SeqPoW written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rand-chain/SeqPoW 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" "+336209eef13882bd1e211b24779584cb7ef911eb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file `/workspace/builds/worker-2-tc1/source/examples/sloth.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `seqpow_sloth`
[INFO] [stderr]   * `example` target `sloth`
[INFO] [stderr] warning: file `/workspace/builds/worker-2-tc1/source/examples/pie19.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `seqpow_pie19`
[INFO] [stderr]   * `example` target `pie19`
[INFO] [stderr] warning: file `/workspace/builds/worker-2-tc1/source/examples/wes19.rs` found to be present in multiple build targets:
[INFO] [stderr]   * `bin` target `seqpow_wes19`
[INFO] [stderr]   * `example` target `wes19`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded az v1.0.0
[INFO] [stderr]   Downloaded rug v1.9.0
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.2.4
[INFO] [stderr] error: failed to unpack package `gmp-mpfr-sys v1.2.4`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack entry at `gmp-mpfr-sys-1.2.4/gmp-6.2.0-c/mpn/generic/hgcd2.c`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/gmp-mpfr-sys-1.2.4/gmp-6.2.0-c/mpn/generic/hgcd2.c`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `gmp-mpfr-sys-1.2.4/gmp-6.2.0-c/mpn/generic/hgcd2.c` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/gmp-mpfr-sys-1.2.4/gmp-6.2.0-c/mpn/generic/hgcd2.c`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)


ExecutionFailed(ExitStatus(unix_wait_status(25856)))