[INFO] cloning repository https://github.com/mdgeno/ch_8_ex1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mdgeno/ch_8_ex1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdgeno%2Fch_8_ex1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdgeno%2Fch_8_ex1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13eb5239180fc7f43fc5f038fe6457dc07ae20cf
[INFO] testing mdgeno/ch_8_ex1 against beta-2026-04-21 for beta-1.96-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdgeno%2Fch_8_ex1" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] error: unable to create directory for '/workspace/builds/worker-1-tc2/source/.git/logs/refs/remotes/origin/HEAD': No such file or directory
[INFO] [stderr] error: unable to write symref for refs/remotes/origin/HEAD: No space left on device
[INFO] [stderr] fatal: unable to update refs/remotes/origin/HEAD
[INFO] testing mdgeno/ch_8_ex1 against beta-2026-04-21 for beta-1.96-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdgeno%2Fch_8_ex1" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-1-tc2/source/.git/config.lock
[INFO] [stderr] error: failed to write new configuration file /workspace/builds/worker-1-tc2/source/.git/config.lock
[INFO] started tweaking git repo https://github.com/mdgeno/ch_8_ex1
[INFO] finished tweaking git repo https://github.com/mdgeno/ch_8_ex1
[INFO] tweaked toml for git repo https://github.com/mdgeno/ch_8_ex1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mdgeno/ch_8_ex1 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mdgeno/ch_8_ex1 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] warning: failed to write cache, path: /workspace/cargo-home/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/r-/ef/r-efi, error: No space left on device (os error 28)
[INFO] [stderr] error: failed to select a version for the requirement `zerocopy = "^0.8.23"` (locked to 0.8.28)
[INFO] [stderr] candidate versions found which didn't match: 0.3.2, 0.2.9, 0.2.1, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `ppv-lite86 v0.2.21`
[INFO] [stderr]     ... which satisfies dependency `ppv-lite86 = "^0.2.14"` (locked to 0.2.21) of package `rand_chacha v0.9.0`
[INFO] [stderr]     ... which satisfies dependency `rand_chacha = "^0.9.0"` (locked to 0.9.0) of package `rand v0.9.2`
[INFO] [stderr]     ... which satisfies dependency `rand = "^0.9.2"` (locked to 0.9.2) of package `ch_8_ex1 v0.1.0 (/workspace/builds/worker-1-tc2/source)`
[INFO] testing mdgeno/ch_8_ex1 against beta-2026-04-21 for beta-1.96-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdgeno%2Fch_8_ex1" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mdgeno/ch_8_ex1
[INFO] finished tweaking git repo https://github.com/mdgeno/ch_8_ex1
[INFO] tweaked toml for git repo https://github.com/mdgeno/ch_8_ex1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mdgeno/ch_8_ex1 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mdgeno/ch_8_ex1 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] warning: failed to write cache, path: /workspace/cargo-home/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/wa/si/wasip2, error: No space left on device (os error 28)
[INFO] [stderr] error: failed to select a version for the requirement `zerocopy = "^0.8.23"` (locked to 0.8.28)
[INFO] [stderr] candidate versions found which didn't match: 0.3.2, 0.2.9, 0.2.1, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `ppv-lite86 v0.2.21`
[INFO] [stderr]     ... which satisfies dependency `ppv-lite86 = "^0.2.14"` (locked to 0.2.21) of package `rand_chacha v0.9.0`
[INFO] [stderr]     ... which satisfies dependency `rand_chacha = "^0.9.0"` (locked to 0.9.0) of package `rand v0.9.2`
[INFO] [stderr]     ... which satisfies dependency `rand = "^0.9.2"` (locked to 0.9.2) of package `ch_8_ex1 v0.1.0 (/workspace/builds/worker-1-tc2/source)`
[INFO] testing mdgeno/ch_8_ex1 against beta-2026-04-21 for beta-1.96-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdgeno%2Fch_8_ex1" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mdgeno/ch_8_ex1
[INFO] finished tweaking git repo https://github.com/mdgeno/ch_8_ex1
[INFO] tweaked toml for git repo https://github.com/mdgeno/ch_8_ex1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mdgeno/ch_8_ex1 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mdgeno/ch_8_ex1 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] warning: failed to write cache, path: /workspace/cargo-home/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/li/bc/libc, error: No space left on device (os error 28)
[INFO] [stderr] error: failed to select a version for the requirement `zerocopy = "^0.8.23"` (locked to 0.8.28)
[INFO] [stderr] candidate versions found which didn't match: 0.3.2, 0.2.9, 0.2.1, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `ppv-lite86 v0.2.21`
[INFO] [stderr]     ... which satisfies dependency `ppv-lite86 = "^0.2.14"` (locked to 0.2.21) of package `rand_chacha v0.9.0`
[INFO] [stderr]     ... which satisfies dependency `rand_chacha = "^0.9.0"` (locked to 0.9.0) of package `rand v0.9.2`
[INFO] [stderr]     ... which satisfies dependency `rand = "^0.9.2"` (locked to 0.9.2) of package `ch_8_ex1 v0.1.0 (/workspace/builds/worker-1-tc2/source)`
[INFO] testing mdgeno/ch_8_ex1 against beta-2026-04-21 for beta-1.96-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmdgeno%2Fch_8_ex1" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] fatal: cannot create directory at 'src': No space left on device
[INFO] [stderr] warning: Clone succeeded, but checkout failed.
[INFO] [stderr] You can inspect what was checked out with 'git status'
[INFO] [stderr] and retry with 'git restore --source=HEAD :/'
[INFO] [stderr] 


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: failed to checkout https://github.com/mdgeno/ch_8_ex1
    2: command failed: exit status: 128