[INFO] cloning repository https://github.com/observer17/otter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/observer17/otter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fobserver17%2Fotter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fobserver17%2Fotter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 29f0e39566141bc3064fd721c8c7594277c00331
[INFO] testing observer17/otter against master#595316b4006932405a63862d8fe65f71a6356293 for pr-128254
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fobserver17%2Fotter" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/observer17/otter on toolchain 595316b4006932405a63862d8fe65f71a6356293
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+595316b4006932405a63862d8fe65f71a6356293" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/observer17/otter
[INFO] finished tweaking git repo https://github.com/observer17/otter
[INFO] tweaked toml for git repo https://github.com/observer17/otter written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/observer17/otter 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" "+595316b4006932405a63862d8fe65f71a6356293" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap v3.0.12
[INFO] [stderr] error: failed to unpack package `clap v3.0.12`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack entry at `clap-3.0.12/src/build/app/mod.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/clap-3.0.12/src/build/app/mod.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `clap-3.0.12/src/build/app/mod.rs` into `/workspace/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/clap-3.0.12/src/build/app/mod.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[ERROR] this task or one of its parent failed!
[ERROR] command failed: exit status: 101
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.