[INFO] fetching crate fastfibonacci 1.3.0...
[INFO] testing fastfibonacci-1.3.0 against master#1ef7943ee607160a564655b6596f83670ef95df5 for pr-146098-6
[INFO] extracting crate fastfibonacci 1.3.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate fastfibonacci 1.3.0
[INFO] finished tweaking crates.io crate fastfibonacci 1.3.0
[INFO] tweaked toml for crates.io crate fastfibonacci 1.3.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fastfibonacci 1.3.0 on toolchain 1ef7943ee607160a564655b6596f83670ef95df5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fastfibonacci 1.3.0 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" "+1ef7943ee607160a564655b6596f83670ef95df5" "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/bi/tv/bitvec, error: No space left on device (os error 28)
[INFO] [stderr] error: failed to select a version for the requirement `web-sys = "^0.3.51"` (locked to 0.3.69)
[INFO] [stderr] candidate versions found which didn't match: 0.0.1
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `plotters v0.3.6`
[INFO] [stderr]     ... which satisfies dependency `plotters = "^0.3.1"` (locked to 0.3.6) of package `criterion v0.5.1`
[INFO] [stderr]     ... which satisfies dependency `criterion = "^0.5"` (locked to 0.5.1) of package `fastfibonacci v1.3.0 (/workspace/builds/worker-6-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/bi/tv/bitvec, error: No space left on device (os error 28)
error: failed to select a version for the requirement `web-sys = "^0.3.51"` (locked to 0.3.69)
candidate versions found which didn't match: 0.0.1
location searched: crates.io index
required by package `plotters v0.3.6`
    ... which satisfies dependency `plotters = "^0.3.1"` (locked to 0.3.6) of package `criterion v0.5.1`
    ... which satisfies dependency `criterion = "^0.5"` (locked to 0.5.1) of package `fastfibonacci v1.3.0 (/workspace/builds/worker-6-tc1/source)`