[INFO] fetching crate cfg-grammar 0.0.1...
[INFO] checking cfg-grammar-0.0.1 against master#64b185eddaa1d7ddf5e0c024be23b9cbba6c1722 for pr-143929
[INFO] extracting crate cfg-grammar 0.0.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate cfg-grammar 0.0.1
[INFO] finished tweaking crates.io crate cfg-grammar 0.0.1
[INFO] tweaked toml for crates.io crate cfg-grammar 0.0.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cfg-grammar 0.0.1 on toolchain 64b185eddaa1d7ddf5e0c024be23b9cbba6c1722
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "generate-lockfile" "--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/mi/ni/miniserde, error: No space left on device (os error 28)
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding bit-vec v0.7.0 (available: v0.8.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded miniserde v0.1.42
[INFO] [stderr] error: failed to unpack package `miniserde v0.1.42`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack entry at `miniserde-0.1.42/src/ser/impls.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/miniserde-0.1.42/src/ser/impls.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `miniserde-0.1.42/src/ser/impls.rs` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/miniserde-0.1.42/src/ser/impls.rs`
[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
    Blocking waiting for file lock on package cache
 Downloading crates ...
  Downloaded miniserde v0.1.42
error: failed to unpack package `miniserde v0.1.42`

Caused by:
  failed to unpack entry at `miniserde-0.1.42/src/ser/impls.rs`

Caused by:
  failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/miniserde-0.1.42/src/ser/impls.rs`

Caused by:
  failed to unpack `miniserde-0.1.42/src/ser/impls.rs` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/miniserde-0.1.42/src/ser/impls.rs`

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