[INFO] cloning repository https://github.com/hdost/carbon2prom
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hdost/carbon2prom" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhdost%2Fcarbon2prom", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhdost%2Fcarbon2prom'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 460e2d8cf0b0bb302cae343789bbbc7e3c944695
[INFO] building hdost/carbon2prom against master#ad211ced81509462cdfe4c29ed10f97279a0acae for pr-135216
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhdost%2Fcarbon2prom" "/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/hdost/carbon2prom 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/hdost/carbon2prom
[INFO] finished tweaking git repo https://github.com/hdost/carbon2prom
[INFO] tweaked toml for git repo https://github.com/hdost/carbon2prom written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hdost/carbon2prom 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]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.10.5
[INFO] [stderr]       Adding prost v0.8.0
[INFO] [stderr]       Adding prost-derive v0.8.0
[INFO] [stderr]       Adding prost-types v0.8.0
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cargo_metadata v0.10.0
[INFO] [stderr]   Downloaded bincode v1.3.2
[INFO] [stderr]   Downloaded skeptic v0.13.5
[INFO] [stderr]   Downloaded snap v1.0.4
[INFO] [stderr]   Downloaded gotham v0.5.0
[INFO] [stderr]   Downloaded protobuf v2.22.1
[INFO] [stderr]   Downloaded tokio v1.8.4
[INFO] [stderr] error: failed to unpack package `tokio v1.8.4`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack entry at `tokio-1.8.4/docs/reactor-refactor.md`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.8.4/docs/reactor-refactor.md`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `tokio-1.8.4/docs/reactor-refactor.md` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.8.4/docs/reactor-refactor.md`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)


ExecutionFailed(ExitStatus(unix_wait_status(25856)))