* installing to library ‘/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages’
* installing *source* package ‘EIX’ ...
** this is package ‘EIX’ version ‘1.2.0’
** package ‘EIX’ successfully unpacked and MD5 sums checked
** using staged installation
** R
** data
*** moving datasets to lazyload DB
** inst
** byte-compile and prepare package for lazy loading
Error: object ‘slice’ is not exported by 'namespace:xgboost'
Execution halted
ERROR: lazy loading failed for package ‘EIX’
* removing ‘/home/hornik/tmp/R.check/r-patched-gcc/Work/build/Packages/EIX’