$ /nix/store/vzx1mi9c0xfadmsm9dhd83d005cb1qs9-coreutils-9.8/bin/timeout --kill-after=15s 1800s /nix/store/99b1z08awpxj8b6mzggn59gp1shljnff-nix-2.34.5/bin/nix --extra-experimental-features nix-command --extra-experimental-features flakes --log-format internal-json build --no-link git+https://github.com/sellout/flaky?ref=docs&rev=cbee76f8e23c300daba7d61aa12913e11acaff3f#checks.x86_64-linux.vale --print-build-logs warning: ignoring untrusted flake configuration setting 'allow-import-from-derivation'. Pass '--accept-flake-config' to trust it warning: ignoring untrusted flake configuration setting 'extra-experimental-features'. Pass '--accept-flake-config' to trust it warning: ignoring untrusted flake configuration setting 'extra-substituters'. Pass '--accept-flake-config' to trust it warning: ignoring untrusted flake configuration setting 'extra-trusted-public-keys'. Pass '--accept-flake-config' to trust it warning: ignoring untrusted flake configuration setting 'sandbox'. Pass '--accept-flake-config' to trust it warning: ignoring untrusted flake configuration setting 'use-registries'. Pass '--accept-flake-config' to trust it error (ignored): SQLite database '/var/cache/private/nix-ci-worker/eval-cache-v6/792b4e6631d46ee6ec82fa2198cce2f77ae3cfab43baa55bf53f2867fea1cbc8.sqlite' is busy  Substituting exe from https://sellout.cachix.org Progress: 0 of 1 built, 1 of 1 fetched  Substituting vale from https://cache.nix-ci.com Progress: 0 of 1 built, 1 of 1 fetched