[INFO] fetching crate cargo-ensure-prefix 0.1.7...
[INFO] testing cargo-ensure-prefix-0.1.7 against master#414482f6a0d4e7290f614300581a0b55442552a3 for pr-140985
[INFO] extracting crate cargo-ensure-prefix 0.1.7 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate cargo-ensure-prefix 0.1.7 on toolchain 414482f6a0d4e7290f614300581a0b55442552a3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-ensure-prefix 0.1.7
[INFO] finished tweaking crates.io crate cargo-ensure-prefix 0.1.7
[INFO] tweaked toml for crates.io crate cargo-ensure-prefix 0.1.7 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate cargo-ensure-prefix 0.1.7 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" "+414482f6a0d4e7290f614300581a0b55442552a3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr] error: failed to download `curl-sys v0.4.50+curl-7.79.1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   unable to get packages from source
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack package `curl-sys v0.4.50+curl-7.79.1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack entry at `curl-sys-0.4.50+curl-7.79.1/curl/docs/GOVERNANCE.md`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/curl-sys-0.4.50+curl-7.79.1/curl/docs/GOVERNANCE.md`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `curl-sys-0.4.50+curl-7.79.1/curl/docs/GOVERNANCE.md` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/curl-sys-0.4.50+curl-7.79.1/curl/docs/GOVERNANCE.md`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)


command failed: exit status: 101

    Blocking waiting for file lock on package cache
 Downloading crates ...
error: failed to download `curl-sys v0.4.50+curl-7.79.1`

Caused by:
  unable to get packages from source

Caused by:
  failed to unpack package `curl-sys v0.4.50+curl-7.79.1`

Caused by:
  failed to unpack entry at `curl-sys-0.4.50+curl-7.79.1/curl/docs/GOVERNANCE.md`

Caused by:
  failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/curl-sys-0.4.50+curl-7.79.1/curl/docs/GOVERNANCE.md`

Caused by:
  failed to unpack `curl-sys-0.4.50+curl-7.79.1/curl/docs/GOVERNANCE.md` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/curl-sys-0.4.50+curl-7.79.1/curl/docs/GOVERNANCE.md`

Caused by:
  No space left on device (os error 28)