Per a note from Kurt the splashr now uses the stevedore package since the docker package is likely being retired from CRAN.
The invalid URL in the vignette (as noted in an email thread) has been fixed.
Tests require instllation of ~1.2GB docker image which also means docker needs to be available. Examples also require a Splash instance (dockerized or full install) to work. Therefore, as has been the case since the previous CRAN version, examples are marked as dontrun and tests do not run on CRAN. They do run monthly and on every repo push in Travis https://travis-ci.org/hrbrmstr/splashr/settings.
I can modify any of the above behavior to conform to any CRAN policy I may be violating.
License has been changed to MIT.
As always, thanks to the CRAN team for their herculean efforts to keep the R package universe healthy!