[INFO] fetching crate existing_instance 0.1.0...
[INFO] testing existing_instance-0.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210
[INFO] extracting crate existing_instance 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate existing_instance 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate existing_instance 0.1.0
[INFO] tweaked toml for crates.io crate existing_instance 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate existing_instance 0.1.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate existing_instance 0.1.0 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.219
[INFO] [stderr] error: No space left on device (os error 28)
[INFO] testing existing_instance-0.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210
[INFO] extracting crate existing_instance 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate existing_instance 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate existing_instance 0.1.0
[INFO] tweaked toml for crates.io crate existing_instance 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate existing_instance 0.1.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate existing_instance 0.1.0 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded windows-targets v0.52.6
[INFO] [stderr]   Downloaded utf8parse v0.2.2
[INFO] [stderr] error: failed to unpack package `utf8parse v0.2.2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack entry at `utf8parse-0.2.2/LICENSE-MIT`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/utf8parse-0.2.2/LICENSE-MIT`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `utf8parse-0.2.2/LICENSE-MIT` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/utf8parse-0.2.2/LICENSE-MIT`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] testing existing_instance-0.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210
[INFO] extracting crate existing_instance 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] testing existing_instance-0.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210
[INFO] extracting crate existing_instance 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] testing existing_instance-0.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210
[INFO] extracting crate existing_instance 0.1.0 into /workspace/builds/worker-6-tc2/source


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: unable to download existing_instance version 0.1.0
    2: failed to unpack `existing_instance-0.1.0/src/lib.rs` into `/workspace/builds/worker-6-tc2/source/src/lib.rs`
    3: No space left on device (os error 28)