Version 0.7.3-2 of r-cran-dslabs is marked for autoremoval from testing on Mon 22 Feb 2021. It depends (transitively) on r-cran-testthat, affected by #979659. You should try to prevent the removal by fixing these RC bugs.
Last update: 2021-01-19
Standards version of the package is outdated.
The package should be updated to follow the last version of Debian Policy
(Standards-Version 4.5.1 instead of