these 2 derivations will be built:
  /nix/store/a3zqk1q9c0pm00cwhsb57h0xbklihi6p-fleet-alert-promtool.drv
  /nix/store/ryvqq5i7wa9xwkjikq3yp01dh3wh19rl-fleet-alert.drv
this path will be fetched (22.8 MiB download, 82.5 MiB unpacked):
  /nix/store/0i5qgajqlx4g2b9bjfs88fmvd24ra90j-prometheus-3.15.1-cli
building '/nix/store/a3zqk1q9c0pm00cwhsb57h0xbklihi6p-fleet-alert-promtool.drv'
fleet-alert-promtool> Checking /nix/store/53r7hx2qbdf983snzx64qc5c36kbvsjq-fleet-alert-rules.yaml
fleet-alert-promtool>   SUCCESS: 11 rules found
fleet-alert-promtool> 
fleet-alert-promtool> Checking /nix/store/xlsyhfyi69fanskx355hqfff8nq4zsi9-fleet-alert-rules-malformed.yaml
fleet-alert-promtool>   FAILED:
fleet-alert-promtool> /nix/store/xlsyhfyi69fanskx355hqfff8nq4zsi9-fleet-alert-rules-malformed.yaml: 1:758: group "fleet-alert", rule 2, "HostOOMKill": could not parse expression: 1:39: parse error: unclosed left parenthesis
fleet-alert-promtool> mutant malformedExpression rejected
building '/nix/store/ryvqq5i7wa9xwkjikq3yp01dh3wh19rl-fleet-alert.drv'

upload niks3: ok