[INFO] cloning repository https://github.com/mzhao8/rust_datasci
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mzhao8/rust_datasci" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmzhao8%2Frust_datasci", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmzhao8%2Frust_datasci'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5436f872c0916b9ba41f51ca0af3117bc079384a
[INFO] checking mzhao8/rust_datasci against master#249cb84316401daf040832cdbb8a45e0f5ab6af8 for pr-138438
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmzhao8%2Frust_datasci" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  75% (470/623)
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Updating files: 100% (623/623), done.
[INFO] validating manifest of git repo https://github.com/mzhao8/rust_datasci on toolchain 249cb84316401daf040832cdbb8a45e0f5ab6af8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+249cb84316401daf040832cdbb8a45e0f5ab6af8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mzhao8/rust_datasci
[INFO] finished tweaking git repo https://github.com/mzhao8/rust_datasci
[INFO] tweaked toml for git repo https://github.com/mzhao8/rust_datasci written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mzhao8/rust_datasci 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" "+249cb84316401daf040832cdbb8a45e0f5ab6af8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tagger v4.3.3
[INFO] [stderr] error: No space left on device (os error 28)


command failed: exit status: 101

    Updating crates.io index
 Downloading crates ...
  Downloaded tagger v4.3.3
error: No space left on device (os error 28)