[INFO] fetching crate umt_rust 0.2.1...
[INFO] testing umt_rust-0.2.1 against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] extracting crate umt_rust 0.2.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate umt_rust 0.2.1
[INFO] finished tweaking crates.io crate umt_rust 0.2.1
[INFO] tweaked toml for crates.io crate umt_rust 0.2.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate umt_rust 0.2.1 on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate umt_rust 0.2.1 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" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] warning: failed to write cache, path: /workspace/cargo-home/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/cr/it/criterion, error: No space left on device (os error 28)
[INFO] [stderr] warning: failed to save last-use data
[INFO] [stderr] This may prevent cargo from accurately tracking what is being used in its global cache. This information is used for automatically removing unused data in the cache.
[INFO] [stderr] 
[INFO] [stderr] database or disk is full
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Error code 13: database or disk is full
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cfg-if v1.0.0
[INFO] [stderr] error: failed to unpack package `cfg-if v1.0.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack entry at `cfg-if-1.0.0/.github/workflows/main.yml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to create `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/cfg-if-1.0.0/.github/workflows`
[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
    Updating crates.io index
warning: failed to write cache, path: /workspace/cargo-home/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/cr/it/criterion, error: No space left on device (os error 28)
warning: failed to save last-use data
This may prevent cargo from accurately tracking what is being used in its global cache. This information is used for automatically removing unused data in the cache.

database or disk is full

Caused by:
  Error code 13: database or disk is full
    Blocking waiting for file lock on package cache
 Downloading crates ...
  Downloaded cfg-if v1.0.0
error: failed to unpack package `cfg-if v1.0.0`

Caused by:
  failed to unpack entry at `cfg-if-1.0.0/.github/workflows/main.yml`

Caused by:
  failed to create `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/cfg-if-1.0.0/.github/workflows`

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