builds failing on R-devel because `stats`, `utils`, `methods`, `grid` packages unavailable

[Indrajeet Patil]

Since yesterday, all of my AppVeyor builds (e.g., this) are failing only on R-devel because the base packages are not found. Not sure why is that.

* installing *source* package 'groupedstats' ...
** using staged installation
** R
** data
*** moving datasets to lazyload DB
** inst
** byte-compile and prepare package for lazy loading
** help
*** installing help indices
*** copying figures
** building package indices
** testing if installed package can be loaded from temporary location
*** arch - i386
Warning message:
package "methods" in options("defaultPackages") was not found 
During startup - Warning messages:
1: package 'stats' in options("defaultPackages") was not found 
2: package 'methods' in options("defaultPackages") was not found 
Error: package or namespace load failed for 'groupedstats' in library.dynam(lib, package, package.lib):
 DLL 'stats' not found: maybe not installed for this architecture?
Error: loading failed
Execution halted
*** arch - x64
ERROR: loading failed for 'i386'
* removing 'C:/projects/groupedstats/groupedstats.Rcheck/groupedstats'

[Indrajeet Patil]

Never mind. This is working again. Maybe it was a temporary glitch.