Marked for autoremoval on 15 February: #916807high
Version 16.1-5 of haskell-mode is marked for autoremoval from testing on Fri 15 Feb 2019. It is affected by #916807. The removal of haskell-mode will also cause the removal of (transitive) reverse dependencies: emacs-lsp-haskell, emacs-lsp-ui, flycheck, flycheck-package, rtags. You should try to prevent the removal by fixing these RC bugs.