[INFO] cloning repository https://github.com/nikomatsakis/mathema
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nikomatsakis/mathema" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikomatsakis%2Fmathema", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikomatsakis%2Fmathema'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 57c64e74bf8c582641dc83b0a1a3932e32e045d0
[INFO] checking nikomatsakis/mathema against master#b2728d5426bab1d8c39709768c7e22b7f66dde5d for pr-135852
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikomatsakis%2Fmathema" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nikomatsakis/mathema on toolchain b2728d5426bab1d8c39709768c7e22b7f66dde5d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b2728d5426bab1d8c39709768c7e22b7f66dde5d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/nikomatsakis/mathema
[INFO] finished tweaking git repo https://github.com/nikomatsakis/mathema
[INFO] tweaked toml for git repo https://github.com/nikomatsakis/mathema written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/nikomatsakis/mathema 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" "+b2728d5426bab1d8c39709768c7e22b7f66dde5d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded slog-async v2.3.0
[INFO] [stderr]   Downloaded futures-preview v0.3.0-alpha.16
[INFO] [stderr]   Downloaded futures-executor-preview v0.3.0-alpha.16
[INFO] [stderr]   Downloaded futures-sink-preview v0.3.0-alpha.16
[INFO] [stderr]   Downloaded atomicwrites v0.1.5
[INFO] [stderr]   Downloaded futures-core-preview v0.3.0-alpha.16
[INFO] [stderr]   Downloaded futures-io-preview v0.3.0-alpha.16
[INFO] [stderr]   Downloaded http-service v0.2.0
[INFO] [stderr]   Downloaded futures-channel-preview v0.3.0-alpha.16
[INFO] [stderr]   Downloaded cursive v0.7.5
[INFO] [stderr]   Downloaded tide v0.2.0
[INFO] [stderr]   Downloaded buf_redux v0.8.1
[INFO] [stderr]   Downloaded string-interner v0.6.3
[INFO] [stderr]   Downloaded git2 v0.8.0
[INFO] [stderr]   Downloaded futures-util-preview v0.3.0-alpha.16
[INFO] [stderr]   Downloaded http-service-hyper v0.2.0
[INFO] [stderr]   Downloaded libgit2-sys v0.7.11
[INFO] [stderr]   Downloaded curl-sys v0.4.18
[INFO] [stderr] error: failed to unpack package `curl-sys v0.4.18`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack entry at `curl-sys-0.4.18/curl/tests/ftpserver.pl`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/curl-sys-0.4.18/curl/tests/ftpserver.pl`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `curl-sys-0.4.18/curl/tests/ftpserver.pl` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/curl-sys-0.4.18/curl/tests/ftpserver.pl`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)


command failed: exit status: 101

    Updating crates.io index
 Downloading crates ...
  Downloaded slog-async v2.3.0
  Downloaded futures-preview v0.3.0-alpha.16
  Downloaded futures-executor-preview v0.3.0-alpha.16
  Downloaded futures-sink-preview v0.3.0-alpha.16
  Downloaded atomicwrites v0.1.5
  Downloaded futures-core-preview v0.3.0-alpha.16
  Downloaded futures-io-preview v0.3.0-alpha.16
  Downloaded http-service v0.2.0
  Downloaded futures-channel-preview v0.3.0-alpha.16
  Downloaded cursive v0.7.5
  Downloaded tide v0.2.0
  Downloaded buf_redux v0.8.1
  Downloaded string-interner v0.6.3
  Downloaded git2 v0.8.0
  Downloaded futures-util-preview v0.3.0-alpha.16
  Downloaded http-service-hyper v0.2.0
  Downloaded libgit2-sys v0.7.11
  Downloaded curl-sys v0.4.18
error: failed to unpack package `curl-sys v0.4.18`

Caused by:
  failed to unpack entry at `curl-sys-0.4.18/curl/tests/ftpserver.pl`

Caused by:
  failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/curl-sys-0.4.18/curl/tests/ftpserver.pl`

Caused by:
  failed to unpack `curl-sys-0.4.18/curl/tests/ftpserver.pl` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/curl-sys-0.4.18/curl/tests/ftpserver.pl`

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