Open
Description
Right now nbdev_test has the do_print option but it's not enough.
Sometimes a notebook it's taking too long to be executed and I would like to know which cells are making the tests run slow. This will be particularly useful to debug why CI it's taking to long.
My suggestion it's to add a -v flag that outputs the cell that nbdev_test ran and it's running. Timing of execution per cell would be awesome but not required.