CI is failing

[inducer]

E.g.

2021-10-28T22:15:50.4341011Z _ test_slipwall_flux[<PyOpenCLArrayContext for <pyopencl.Device 'pthread-Intel(R) Xeon(R) CPU E5-2673 v4 @ 2.30GHz' on 'Portable Computing Language'>>-1-2] _
2021-10-28T22:15:50.4341942Z Traceback (most recent call last):
2021-10-28T22:15:50.4342588Z   File "/home/runner/work/grudge/grudge/mirgecom/test/test_bc.py", line 170, in test_slipwall_flux
2021-10-28T22:15:50.4343495Z     message = (f"EOC:\n{eoc}")
2021-10-28T22:15:50.4344633Z   File "/home/runner/work/grudge/grudge/mirgecom/.miniforge3/envs/testing/lib/python3.8/site-packages/pytools/convergence.py", line 85, in __str__
2021-10-28T22:15:50.4345962Z     return self.pretty_print()
2021-10-28T22:15:50.4347281Z   File "/home/runner/work/grudge/grudge/mirgecom/.miniforge3/envs/testing/lib/python3.8/site-packages/pytools/convergence.py", line 67, in pretty_print
2021-10-28T22:15:50.4348435Z     gm_eoc = self.estimate_order_of_convergence(gliding_mean)
2021-10-28T22:15:50.4351042Z   File "/home/runner/work/grudge/grudge/mirgecom/.miniforge3/envs/testing/lib/python3.8/site-packages/pytools/convergence.py", line 36, in estimate_order_of_convergence
2021-10-28T22:15:50.4352318Z     errors += (1 if emax == 0 else emax) * np.finfo(errors.dtype).eps
2021-10-28T22:15:50.4354070Z   File "/home/runner/work/grudge/grudge/mirgecom/.miniforge3/envs/testing/lib/python3.8/site-packages/numpy/core/getlimits.py", line 398, in __new__
2021-10-28T22:15:50.4355457Z     raise ValueError("data type %r not inexact" % (dtype))
2021-10-28T22:15:50.4356392Z ValueError: data type <class 'numpy.object_'> not inexact

This is making the downstream CIs of many upstream packages unhappy as well.

[MTCam]

We are painfully aware of this. When inducer/grudge#170 merged in grudge, it basically broke all of MIRGECom. Working installs are impossible at this point unless you pick up the changes from #518.

We've been ganging up working on this since inducer/grudge/#170 merged.

[inducer]

Thanks @MTCam for working on this. All better now that #518 is in.