[INFO] fetching crate workbloom 0.8.1...
[INFO] testing workbloom-0.8.1 against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] extracting crate workbloom 0.8.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate workbloom 0.8.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate workbloom 0.8.1
[INFO] tweaked toml for crates.io crate workbloom 0.8.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate workbloom 0.8.1 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 workbloom 0.8.1 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]     Updating crates.io index
[INFO] [stderr] warning: failed to write cache, path: /workspace/cargo-home/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/an/yh/anyhow, error: No space left on device (os error 28)
[INFO] [stderr] error: failed to select a version for the requirement `serde = "^1.0"` (locked to 1.0.219)
[INFO] [stderr] candidate versions found which didn't match: 0.6.12, 0.6.11, 0.6.10, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `workbloom v0.8.1 (/workspace/builds/worker-0-tc1/source)`


command failed: exit status: 101

    Blocking waiting for file lock on package cache
    Updating crates.io index
warning: failed to write cache, path: /workspace/cargo-home/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/an/yh/anyhow, error: No space left on device (os error 28)
error: failed to select a version for the requirement `serde = "^1.0"` (locked to 1.0.219)
candidate versions found which didn't match: 0.6.12, 0.6.11, 0.6.10, ...
location searched: crates.io index
required by package `workbloom v0.8.1 (/workspace/builds/worker-0-tc1/source)`