[INFO] fetching crate diffmetrik 0.3.0...
[INFO] testing diffmetrik-0.3.0 against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940
[INFO] extracting crate diffmetrik 0.3.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate diffmetrik 0.3.0 on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate diffmetrik 0.3.0
[INFO] finished tweaking crates.io crate diffmetrik 0.3.0
[INFO] tweaked toml for crates.io crate diffmetrik 0.3.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate diffmetrik 0.3.0 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" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded human_format v1.0.3
[INFO] [stderr]   Downloaded proc-macro-error-attr v0.4.3
[INFO] [stderr]   Downloaded rustversion v1.0.1
[INFO] [stderr]   Downloaded structopt v0.3.7
[INFO] [stderr] error: failed to unpack package `structopt v0.3.7`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack entry at `structopt-0.3.7/tests/deny-warnings.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/structopt-0.3.7/tests/deny-warnings.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `structopt-0.3.7/tests/deny-warnings.rs` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/structopt-0.3.7/tests/deny-warnings.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)


command failed: exit status: 101

    Updating crates.io index
    Blocking waiting for file lock on package cache
 Downloading crates ...
  Downloaded human_format v1.0.3
  Downloaded proc-macro-error-attr v0.4.3
  Downloaded rustversion v1.0.1
  Downloaded structopt v0.3.7
error: failed to unpack package `structopt v0.3.7`

Caused by:
  failed to unpack entry at `structopt-0.3.7/tests/deny-warnings.rs`

Caused by:
  failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/structopt-0.3.7/tests/deny-warnings.rs`

Caused by:
  failed to unpack `structopt-0.3.7/tests/deny-warnings.rs` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/structopt-0.3.7/tests/deny-warnings.rs`

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