Haddock is a constant mystery. I added five lines of comments to GHC's source code, and one of the Haddock performance tests fails (see below). That's all the patch contains. I am reluctant to fix it by deleting the comments! Simon -----Original Message----- From: noreply@phabricator.haskell.org [mailto:noreply@phabricator.haskell.org] Sent: 02 December 2015 16:05 To: Simon Peyton Jones <simonpj@microsoft.com> Subject: [Diffusion] [Build Failed] rGHC52b02e66025f: Comments only (isIrrefutablePat) Harbormaster failed to build B7060: rGHC52b02e66025f: Comments only (isIrrefutablePat)! BRANCHES master USERS simonpj (Author) GHC - HsSyn/Parser (Auditor) GHC - Renamer (Auditor) COMMIT https://phabricator.haskell.org/rGHC52b02e66025f EMAIL PREFERENCES https://phabricator.haskell.org/settings/panel/emailpreferences/ To: simonpj, GHC - HsSyn/Parser, GHC - Renamer