[INFO] cloning repository https://github.com/wfraser/backfs-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wfraser/backfs-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwfraser%2Fbackfs-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwfraser%2Fbackfs-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9060607fb259d51293a1ae3861f2546373e7cd20
[INFO] checking wfraser/backfs-rs against master#8f359beca4e58bc3ae795a666301a8f47023044c for pr-121557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwfraser%2Fbackfs-rs" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wfraser/backfs-rs on toolchain 8f359beca4e58bc3ae795a666301a8f47023044c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f359beca4e58bc3ae795a666301a8f47023044c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wfraser/backfs-rs
[INFO] finished tweaking git repo https://github.com/wfraser/backfs-rs
[INFO] tweaked toml for git repo https://github.com/wfraser/backfs-rs written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/wfraser/backfs-rs 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" "+8f359beca4e58bc3ae795a666301a8f47023044c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/wfraser/fuse-mt.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded page_size v0.5.0
[INFO] [stderr]   Downloaded daemonize v0.5.0
[INFO] [stderr]   Downloaded zerocopy v0.6.6
[INFO] [stderr]   Downloaded fuser v0.13.0
[INFO] [stderr]   Downloaded zerocopy-derive v0.6.6
[INFO] [stderr] error: failed to unpack package `zerocopy-derive v0.6.6`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack entry at `zerocopy-derive-0.6.6/tests/ui-nightly/enum_from_bytes_u16_too_few.rs.disabled`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/zerocopy-derive-0.6.6/tests/ui-nightly/enum_from_bytes_u16_too_few.rs.disabled`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `zerocopy-derive-0.6.6/tests/ui-nightly/enum_from_bytes_u16_too_few.rs.disabled` into `/workspace/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/zerocopy-derive-0.6.6/tests/ui-nightly/enum_from_bytes_u16_too_few.rs.disabled`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[ERROR] this task or one of its parent failed!
[ERROR] command failed: exit status: 101
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.