[INFO] cloning repository https://github.com/justvg/vulkan-triangle-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/justvg/vulkan-triangle-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustvg%2Fvulkan-triangle-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjustvg%2Fvulkan-triangle-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb6886833b420ee308452ab8b77b8a1096758da4
[INFO] testing justvg/vulkan-triangle-rust 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%2Fjustvg%2Fvulkan-triangle-rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/justvg/vulkan-triangle-rust
[INFO] finished tweaking git repo https://github.com/justvg/vulkan-triangle-rust
[INFO] tweaked toml for git repo https://github.com/justvg/vulkan-triangle-rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/justvg/vulkan-triangle-rust 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/justvg/vulkan-triangle-rust 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] warning: failed to write cache, path: /workspace/cargo-home/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/nu/m_/num_enum_derive, error: No space left on device (os error 28)
[INFO] [stderr] error: failed to select a version for the requirement `cc = "^1"` (locked to 1.0.72)
[INFO] [stderr] candidate versions found which didn't match: 1.0.44, 1.0.43, 1.0.42, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `nix v0.22.3`
[INFO] [stderr]     ... which satisfies dependency `nix = "^0.22"` (locked to 0.22.3) of package `smithay-client-toolkit v0.15.3`
[INFO] [stderr]     ... which satisfies dependency `sctk = "^0.15.1"` (locked to 0.15.3) of package `winit v0.26.1`
[INFO] [stderr]     ... which satisfies dependency `winit = "^0.26"` (locked to 0.26.1) of package `vulkan_test v0.1.0 (/workspace/builds/worker-7-tc2/source)`
[INFO] testing justvg/vulkan-triangle-rust 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%2Fjustvg%2Fvulkan-triangle-rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/justvg/vulkan-triangle-rust
[INFO] finished tweaking git repo https://github.com/justvg/vulkan-triangle-rust
[INFO] tweaked toml for git repo https://github.com/justvg/vulkan-triangle-rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/justvg/vulkan-triangle-rust 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/justvg/vulkan-triangle-rust 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] warning: failed to write cache, path: /workspace/cargo-home/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/fo/re/foreign-types-shared, error: No space left on device (os error 28)
[INFO] [stderr] error: failed to select a version for the requirement `cc = "^1"` (locked to 1.0.72)
[INFO] [stderr] candidate versions found which didn't match: 1.0.44, 1.0.43, 1.0.42, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `nix v0.22.3`
[INFO] [stderr]     ... which satisfies dependency `nix = "^0.22"` (locked to 0.22.3) of package `smithay-client-toolkit v0.15.3`
[INFO] [stderr]     ... which satisfies dependency `sctk = "^0.15.1"` (locked to 0.15.3) of package `winit v0.26.1`
[INFO] [stderr]     ... which satisfies dependency `winit = "^0.26"` (locked to 0.26.1) of package `vulkan_test v0.1.0 (/workspace/builds/worker-7-tc2/source)`
[INFO] testing justvg/vulkan-triangle-rust 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%2Fjustvg%2Fvulkan-triangle-rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/justvg/vulkan-triangle-rust
[INFO] finished tweaking git repo https://github.com/justvg/vulkan-triangle-rust
[INFO] tweaked toml for git repo https://github.com/justvg/vulkan-triangle-rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/justvg/vulkan-triangle-rust 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/justvg/vulkan-triangle-rust 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] warning: failed to write cache, path: /workspace/cargo-home/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/nu/m_/num_enum_derive, error: No space left on device (os error 28)
[INFO] [stderr] error: failed to select a version for the requirement `cc = "^1"` (locked to 1.0.72)
[INFO] [stderr] candidate versions found which didn't match: 1.0.44, 1.0.43, 1.0.42, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `nix v0.22.3`
[INFO] [stderr]     ... which satisfies dependency `nix = "^0.22"` (locked to 0.22.3) of package `smithay-client-toolkit v0.15.3`
[INFO] [stderr]     ... which satisfies dependency `sctk = "^0.15.1"` (locked to 0.15.3) of package `winit v0.26.1`
[INFO] [stderr]     ... which satisfies dependency `winit = "^0.26"` (locked to 0.26.1) of package `vulkan_test v0.1.0 (/workspace/builds/worker-7-tc2/source)`
[INFO] testing justvg/vulkan-triangle-rust 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%2Fjustvg%2Fvulkan-triangle-rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/justvg/vulkan-triangle-rust
[INFO] finished tweaking git repo https://github.com/justvg/vulkan-triangle-rust
[INFO] tweaked toml for git repo https://github.com/justvg/vulkan-triangle-rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/justvg/vulkan-triangle-rust 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/justvg/vulkan-triangle-rust 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] warning: failed to write cache, path: /workspace/cargo-home/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/pr/oc/proc-macro2, error: No space left on device (os error 28)
[INFO] [stderr] error: failed to select a version for the requirement `cc = "^1"` (locked to 1.0.72)
[INFO] [stderr] candidate versions found which didn't match: 1.0.44, 1.0.43, 1.0.42, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `nix v0.22.3`
[INFO] [stderr]     ... which satisfies dependency `nix = "^0.22"` (locked to 0.22.3) of package `smithay-client-toolkit v0.15.3`
[INFO] [stderr]     ... which satisfies dependency `sctk = "^0.15.1"` (locked to 0.15.3) of package `winit v0.26.1`
[INFO] [stderr]     ... which satisfies dependency `winit = "^0.26"` (locked to 0.26.1) of package `vulkan_test v0.1.0 (/workspace/builds/worker-7-tc2/source)`
[INFO] testing justvg/vulkan-triangle-rust 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%2Fjustvg%2Fvulkan-triangle-rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] fatal: update_ref failed for ref 'HEAD': cannot update the ref 'HEAD': unable to append to '/workspace/builds/worker-7-tc2/source/.git/logs/HEAD': No space left on device


overridden task result to prepare-fail:unknown

Caused by:
    0: uncategorized prepare error
    1: failed to checkout https://github.com/justvg/vulkan-triangle-rust
    2: command failed: exit status: 128