[("tests/examples/Monad19.hs:1:7-33: Warning: Use mapM_\nFound:\n mapM async ds >>= mapM wait\nPerhaps:\n mapM async ds >>= mapM_ wait\n",[Replace {rtype = Expr, pos = SrcSpan {startLine = 1, startCol = 25, endLine = 1, endCol = 29}, subts = [], orig = "mapM_"}])]