[INFO] fetching crate streaming-json-completer 0.2.0-dev...
[INFO] checking streaming-json-completer-0.2.0-dev against master#0fb279be1d96464c69209053ef0f97ad63088cda for pr-143857
[INFO] extracting crate streaming-json-completer 0.2.0-dev into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate streaming-json-completer 0.2.0-dev
[INFO] finished tweaking crates.io crate streaming-json-completer 0.2.0-dev
[INFO] tweaked toml for crates.io crate streaming-json-completer 0.2.0-dev written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate streaming-json-completer 0.2.0-dev on toolchain 0fb279be1d96464c69209053ef0f97ad63088cda
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0fb279be1d96464c69209053ef0f97ad63088cda" "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" "+0fb279be1d96464c69209053ef0f97ad63088cda" "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 92 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.6.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0fb279be1d96464c69209053ef0f97ad63088cda" "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]   Downloaded arbitrary-json v0.1.1
[INFO] [stderr] error: 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 ...
  Downloaded arbitrary-json v0.1.1
error: No space left on device (os error 28)