[INFO] cloning repository https://github.com/magnesium-lang/scratch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/magnesium-lang/scratch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmagnesium-lang%2Fscratch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmagnesium-lang%2Fscratch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 126aac1e82f033f387cc4b0ed74ffc1e23a7797e
[INFO] checking magnesium-lang/scratch against master#8a65ee08296b36342bf7c3cdc15312ccbc357227 for pr-142704
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmagnesium-lang%2Fscratch" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/magnesium-lang/scratch on toolchain 8a65ee08296b36342bf7c3cdc15312ccbc357227
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/magnesium-lang/scratch
[INFO] finished tweaking git repo https://github.com/magnesium-lang/scratch
[INFO] tweaked toml for git repo https://github.com/magnesium-lang/scratch written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/magnesium-lang/scratch 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" "+8a65ee08296b36342bf7c3cdc15312ccbc357227" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-core-preview v0.3.0-alpha.17
[INFO] [stderr]   Downloaded futures-sink-preview v0.3.0-alpha.17
[INFO] [stderr]   Downloaded futures-channel-preview v0.3.0-alpha.17
[INFO] [stderr]   Downloaded futures-executor-preview v0.3.0-alpha.17
[INFO] [stderr]   Downloaded futures-io-preview v0.3.0-alpha.17
[INFO] [stderr]   Downloaded futures-preview v0.3.0-alpha.17
[INFO] [stderr]   Downloaded futures-util-preview v0.3.0-alpha.17
[INFO] [stderr] error: failed to unpack package `futures-util-preview v0.3.0-alpha.17`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack entry at `futures-util-preview-0.3.0-alpha.17/src/future/either.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/futures-util-preview-0.3.0-alpha.17/src/future/either.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `futures-util-preview-0.3.0-alpha.17/src/future/either.rs` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/futures-util-preview-0.3.0-alpha.17/src/future/either.rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)


command failed: exit status: 101

 Downloading crates ...
  Downloaded futures-core-preview v0.3.0-alpha.17
  Downloaded futures-sink-preview v0.3.0-alpha.17
  Downloaded futures-channel-preview v0.3.0-alpha.17
  Downloaded futures-executor-preview v0.3.0-alpha.17
  Downloaded futures-io-preview v0.3.0-alpha.17
  Downloaded futures-preview v0.3.0-alpha.17
  Downloaded futures-util-preview v0.3.0-alpha.17
error: failed to unpack package `futures-util-preview v0.3.0-alpha.17`

Caused by:
  failed to unpack entry at `futures-util-preview-0.3.0-alpha.17/src/future/either.rs`

Caused by:
  failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/futures-util-preview-0.3.0-alpha.17/src/future/either.rs`

Caused by:
  failed to unpack `futures-util-preview-0.3.0-alpha.17/src/future/either.rs` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/futures-util-preview-0.3.0-alpha.17/src/future/either.rs`

Caused by:
  No space left on device (os error 28)