[INFO] cloning repository https://github.com/mmastrac/tuplemagic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mmastrac/tuplemagic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmastrac%2Ftuplemagic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmastrac%2Ftuplemagic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 64e5677c8e2d0254f747c66346f65e86e4e7a8ce
[INFO] testing mmastrac/tuplemagic against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmastrac%2Ftuplemagic" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mmastrac/tuplemagic
[INFO] finished tweaking git repo https://github.com/mmastrac/tuplemagic
[INFO] tweaked toml for git repo https://github.com/mmastrac/tuplemagic written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mmastrac/tuplemagic on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mmastrac/tuplemagic 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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]     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 static_assertions v0.3.4
[INFO] [stderr] error: failed to create directory `/workspace/cargo-home/registry/cache/index.crates.io-1949cf8c6b5b557f`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)


command failed: exit status: 101

    Blocking waiting for file lock on package cache
    Updating crates.io index
    Blocking waiting for file lock on package cache
    Blocking waiting for file lock on package cache
 Downloading crates ...
  Downloaded static_assertions v0.3.4
error: failed to create directory `/workspace/cargo-home/registry/cache/index.crates.io-1949cf8c6b5b557f`

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