* installing *source* package ‘pkgdiff’ ...
** this is package ‘pkgdiff’ version ‘1.0.2’
** package ‘pkgdiff’ successfully unpacked and MD5 sums checked
** using staged installation
** R
** inst
** byte-compile and prepare package for lazy loading
** help
*** installing help indices
*** copying figures
** building package indices
** installing vignettes
** testing if installed package can be loaded from temporary location
Error: package or namespace load failed for ‘pkgdiff’:
 .onAttach failed in attachNamespace() for 'pkgdiff', details:
  call: github_packages()
  error: Pkgdiff GitHub package list not available.
Error: loading failed
Execution halted
ERROR: loading failed
* removing ‘/data/gannet/ripley/R/packages/tests-MKL/pkgdiff.Rcheck/pkgdiff’