[INFO] fetching crate naive_json_io 0.1.0...
[INFO] testing naive_json_io-0.1.0 against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] extracting crate naive_json_io 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate naive_json_io 0.1.0
[INFO] finished tweaking crates.io crate naive_json_io 0.1.0
[INFO] tweaked toml for crates.io crate naive_json_io 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate naive_json_io 0.1.0 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 naive_json_io 0.1.0 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]  Downloading crates ...
[INFO] [stderr]   Downloaded itoa v1.0.2
[INFO] [stderr]   Downloaded quote v1.0.20
[INFO] [stderr]   Downloaded proc-macro2 v1.0.42
[INFO] [stderr]   Downloaded serde v1.0.140
[INFO] [stderr]   Downloaded serde_derive v1.0.140
[INFO] [stderr]   Downloaded unicode-ident v1.0.2
[INFO] [stderr]   Downloaded serde_json v1.0.82
[INFO] [stderr] error: failed to unpack package `serde_json v1.0.82`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack entry at `serde_json-1.0.82/src/value/index.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_json-1.0.82/src/value/index.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `serde_json-1.0.82/src/value/index.rs` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_json-1.0.82/src/value/index.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
 Downloading crates ...
  Downloaded itoa v1.0.2
  Downloaded quote v1.0.20
  Downloaded proc-macro2 v1.0.42
  Downloaded serde v1.0.140
  Downloaded serde_derive v1.0.140
  Downloaded unicode-ident v1.0.2
  Downloaded serde_json v1.0.82
error: failed to unpack package `serde_json v1.0.82`

Caused by:
  failed to unpack entry at `serde_json-1.0.82/src/value/index.rs`

Caused by:
  failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_json-1.0.82/src/value/index.rs`

Caused by:
  failed to unpack `serde_json-1.0.82/src/value/index.rs` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_json-1.0.82/src/value/index.rs`

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