[INFO] fetching crate npos-miner 0.0.9...
[INFO] testing npos-miner-0.0.9 against master#e9385f9eea0221ef295a188d49d16f8f5189abf1 for pr-146098
[INFO] extracting crate npos-miner 0.0.9 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate npos-miner 0.0.9
[INFO] finished tweaking crates.io crate npos-miner 0.0.9
[INFO] tweaked toml for crates.io crate npos-miner 0.0.9 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate npos-miner 0.0.9 on toolchain e9385f9eea0221ef295a188d49d16f8f5189abf1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9385f9eea0221ef295a188d49d16f8f5189abf1" "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" "+e9385f9eea0221ef295a188d49d16f8f5189abf1" "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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 475 packages to latest compatible versions
[INFO] [stderr]       Adding bounded-collections v0.1.9 (available: v0.3.2)
[INFO] [stderr]       Adding curve25519-dalek v3.2.0 (available: v3.2.1)
[INFO] [stderr]       Adding frame-election-provider-solution-type v12.0.0 (available: v16.1.1)
[INFO] [stderr]       Adding frame-election-provider-support v27.0.0 (available: v42.0.0)
[INFO] [stderr]       Adding frame-support v27.0.0 (available: v42.0.0)
[INFO] [stderr]       Adding pallet-election-provider-multi-phase v26.0.0 (available: v41.0.0)
[INFO] [stderr]       Adding sp-core v27.0.0 (available: v38.0.0)
[INFO] [stderr]       Adding sp-io v29.0.0 (available: v42.0.0)
[INFO] [stderr]       Adding sp-npos-elections v25.0.0 (available: v38.0.0)
[INFO] [stderr]       Adding sp-runtime v30.0.1 (available: v43.0.0)
[INFO] [stderr]       Adding subtle v2.4.1 (available: v2.6.1)
[INFO] [stderr]       Adding toml v0.8.2 (available: v0.8.23)
[INFO] [stderr]       Adding toml_datetime v0.6.3 (available: v0.6.11)
[INFO] [stderr]       Adding toml_edit v0.20.2 (available: v0.20.7)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e9385f9eea0221ef295a188d49d16f8f5189abf1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr] error: failed to download `tracing-attributes v0.1.30`
[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 `tracing-attributes v0.1.30`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack entry at `tracing-attributes-0.1.30/src/lib.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tracing-attributes-0.1.30/src/lib.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `tracing-attributes-0.1.30/src/lib.rs` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tracing-attributes-0.1.30/src/lib.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
    Blocking waiting for file lock on package cache
 Downloading crates ...
error: failed to download `tracing-attributes v0.1.30`

Caused by:
  unable to get packages from source

Caused by:
  failed to unpack package `tracing-attributes v0.1.30`

Caused by:
  failed to unpack entry at `tracing-attributes-0.1.30/src/lib.rs`

Caused by:
  failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tracing-attributes-0.1.30/src/lib.rs`

Caused by:
  failed to unpack `tracing-attributes-0.1.30/src/lib.rs` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tracing-attributes-0.1.30/src/lib.rs`

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