[INFO] cloning repository https://github.com/ghimiresdp/rust-challenges
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ghimiresdp/rust-challenges" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fghimiresdp%2Frust-challenges", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fghimiresdp%2Frust-challenges'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 996bbfaa2ed2ea2234f6ae809d8eb1fa1d97f0b6
[INFO] checking ghimiresdp/rust-challenges against master#2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48 for pr-142723
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fghimiresdp%2Frust-challenges" "/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/ghimiresdp/rust-challenges on toolchain 2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ghimiresdp/rust-challenges
[INFO] finished tweaking git repo https://github.com/ghimiresdp/rust-challenges
[INFO] tweaked toml for git repo https://github.com/ghimiresdp/rust-challenges written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ghimiresdp/rust-challenges 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" "+2fcf1776b9ccef89993dfe40e9f5c4908e2d2d48" "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 base64ct v1.7.2
[INFO] [stderr] error: failed to unpack package `base64ct v1.7.2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack entry at `base64ct-1.7.2/Cargo.toml.orig`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/base64ct-1.7.2/Cargo.toml.orig`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack `base64ct-1.7.2/Cargo.toml.orig` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/base64ct-1.7.2/Cargo.toml.orig`
[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
    Blocking waiting for file lock on package cache
 Downloading crates ...
  Downloaded base64ct v1.7.2
error: failed to unpack package `base64ct v1.7.2`

Caused by:
  failed to unpack entry at `base64ct-1.7.2/Cargo.toml.orig`

Caused by:
  failed to unpack `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/base64ct-1.7.2/Cargo.toml.orig`

Caused by:
  failed to unpack `base64ct-1.7.2/Cargo.toml.orig` into `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/base64ct-1.7.2/Cargo.toml.orig`

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