unreadable-example.txt

[31mSetting parser is invalid:[m
  
  [31mInvalid Setting:[m
  [33mexample[m was called with an example that none of the [33mreader[ms succeed in reading.
  Example: NaN
  Defined at: [36mtest/OptEnvConf/LintSpec.hs:132:7 in opt-env-conf-test:OptEnvConf.LintSpec[m