Comment 43 for bug 1808418

> Maybe the bcmwl-kernel-source package just isn't compatible with 5.7 yet?

I see now in the logs that's the case:

Building module:
cleaning build area...
make -j4 KERNELRELEASE=5.7.0-050700rc2-generic -C /lib/modules/5.7.0-050700rc2-generic/build M=/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build....(bad exit status: 2)
ERROR (dkms apport): kernel package linux-headers-5.7.0-050700rc2-generic is not supported
Error! Bad return status for module build on kernel: 5.7.0-050700rc2-generic (x86_64)

But I won't say anything more about that here since it's a separate issue.