rnfail045.hs:5:1: error: [GHC-91938]
    equations for ‘op1’ have different numbers of arguments
      rnfail045.hs:5:1-16
      rnfail045.hs:6:1-13

rnfail045.hs:8:1: error: [GHC-91938]
    equations for ‘op2’ have different numbers of arguments
      rnfail045.hs:8:1-13
      rnfail045.hs:9:1-16