$ /nix/store/vzx1mi9c0xfadmsm9dhd83d005cb1qs9-coreutils-9.8/bin/timeout --kill-after=15s 7200s /nix/store/86n4l5yri6hys3zk2mwy2azcv9prqb8j-nix-2.31.4/bin/nix --extra-experimental-features nix-command --extra-experimental-features flakes --log-format internal-json build --no-link git+https://github.com/NorfairKing/looper?ref=master&rev=a48f7ce2c8067c14d0ad7ac549735962f19b066e#checks.x86_64-linux.forwardCompatibility --print-build-logs[m
[2m[m
[32mDownloading cached looper-0.4.0.0-doc from https://cache.staging.nix-ci.com[m
[2mProgress: 0 of 1 built, 1 of 2 downloaded from cache[m
[32mDownloading cached looper from https://cache.staging.nix-ci.com[m
[2mProgress: 0 of 1 built, 2 of 2 downloaded from cache[m