[INFO] cloning repository https://github.com/digitake/mnist
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/digitake/mnist" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdigitake%2Fmnist", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdigitake%2Fmnist'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0a6bfdc953d1ab25ec3317f4f97bd120ef586c02
[INFO] building digitake/mnist against master#ad211ced81509462cdfe4c29ed10f97279a0acae for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdigitake%2Fmnist" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  77% (7/9)
Updating files:  88% (8/9)
Updating files: 100% (9/9)
Updating files: 100% (9/9), done.
[INFO] validating manifest of git repo https://github.com/digitake/mnist on toolchain ad211ced81509462cdfe4c29ed10f97279a0acae
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/digitake/mnist
[INFO] finished tweaking git repo https://github.com/digitake/mnist
[INFO] tweaked toml for git repo https://github.com/digitake/mnist written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/digitake/mnist 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" "+ad211ced81509462cdfe4c29ed10f97279a0acae" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rust-mnist v0.2.0
[INFO] [stderr] error: failed to unpack package `rust-mnist v0.2.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack entry at `rust-mnist-0.2.0/examples/perceptron.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rust-mnist-0.2.0/examples/perceptron.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `rust-mnist-0.2.0/examples/perceptron.rs` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rust-mnist-0.2.0/examples/perceptron.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)


ExecutionFailed(ExitStatus(unix_wait_status(25856)))