Set: pp::colors
  Set: pp::unicode
  Assumed: x
Error (line: 3, pos: 0) set_opaque failed, 'x' is not a definition
before import
Error (line: 11, pos: 0) file 'tstblafoo.lean' not found in the LEAN_PATH
before load1
Error (line: 17, pos: 0) failed to open file 'tstblafoo.lean'
before load2
Error (line: 23, pos: 0) corrupted binary file
before load3
Error (line: 28, pos: 0) file 'fake2.olean' does not seem to be a valid object Lean file