[INFO] fetching crate sourcepak 0.3.0...
[INFO] checking sourcepak-0.3.0 against master#f8c27dfe1a2e7fb538fd91dad53de06992c7c967 for pr-138915
[INFO] extracting crate sourcepak 0.3.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate sourcepak 0.3.0 on toolchain f8c27dfe1a2e7fb538fd91dad53de06992c7c967
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8c27dfe1a2e7fb538fd91dad53de06992c7c967" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sourcepak 0.3.0
[INFO] finished tweaking crates.io crate sourcepak 0.3.0
[INFO] tweaked toml for crates.io crate sourcepak 0.3.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8c27dfe1a2e7fb538fd91dad53de06992c7c967" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] warning: failed to write cache, path: /workspace/cargo-home/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/fi/le/filebuffer, error: No space left on device (os error 28)
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding filebuffer v0.4.0 (available: v1.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8c27dfe1a2e7fb538fd91dad53de06992c7c967" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: failed to select a version for the requirement `filebuffer = "^0.4.0"` (locked to 0.4.0)
[INFO] [stderr] candidate versions found which didn't match: 0.3.0, 0.2.0, 0.1.1, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `sourcepak v0.3.0 (/workspace/builds/worker-6-tc1/source)`


command failed: exit status: 101

    Updating crates.io index
error: failed to select a version for the requirement `filebuffer = "^0.4.0"` (locked to 0.4.0)
candidate versions found which didn't match: 0.3.0, 0.2.0, 0.1.1, ...
location searched: crates.io index
required by package `sourcepak v0.3.0 (/workspace/builds/worker-6-tc1/source)`