[INFO] fetching crate syros 1.0.1...
[INFO] testing syros-1.0.1 against beta-2026-04-21 for beta-1.96-1
[INFO] extracting crate syros 1.0.1 into /workspace/builds/worker-2-tc2/source
[INFO] removed /workspace/builds/worker-2-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate syros 1.0.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate syros 1.0.1
[INFO] tweaked toml for crates.io crate syros 1.0.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate syros 1.0.1 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate syros 1.0.1 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" "+beta-2026-04-21" "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_json = "^1.0"` (locked to 1.0.149)
[INFO] [stderr] candidate versions found which didn't match: 1.0.102, 1.0.101, 1.0.100, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `syros v1.0.1 (/workspace/builds/worker-2-tc2/source)`
[INFO] [stderr] help: if you are looking for the prerelease package it needs to be specified explicitly
[INFO] [stderr]     serde_json = { version = "0.9.0-rc3" }
[INFO] testing syros-1.0.1 against beta-2026-04-21 for beta-1.96-1
[INFO] extracting crate syros 1.0.1 into /workspace/builds/worker-2-tc2/source
[INFO] testing syros-1.0.1 against beta-2026-04-21 for beta-1.96-1
[INFO] extracting crate syros 1.0.1 into /workspace/builds/worker-2-tc2/source
[INFO] testing syros-1.0.1 against beta-2026-04-21 for beta-1.96-1
[INFO] extracting crate syros 1.0.1 into /workspace/builds/worker-2-tc2/source
[INFO] testing syros-1.0.1 against beta-2026-04-21 for beta-1.96-1
[INFO] extracting crate syros 1.0.1 into /workspace/builds/worker-2-tc2/source


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: unable to download syros version 1.0.1
    2: failed to unpack `syros-1.0.1/tests/mock_server.rs` into `/workspace/builds/worker-2-tc2/source/tests/mock_server.rs`
    3: No space left on device (os error 28)