ERRO file has changed path=packages/luvus/package.nix prev_size=1458 prev_mod_time="2026-08-19 14:50:30 +0000 UTC" current_size=1436 current_mod_time="2026-08-19 14:50:32 +0000 UTC" traversed 440 files emitted 306 files for processing formatted 306 files (1 changed) in 21.317s Error: unexpected changes detected, --fail-on-change is enabled