* installing *source* package ‘fastml’ ...
** this is package ‘fastml’ version ‘0.7.8’
** package ‘fastml’ successfully unpacked and MD5 sums checked
** using staged installation
** R
** byte-compile and prepare package for lazy loading
Error in dyn.load(file, DLLpath = DLLpath, ...) : 
  unable to load shared object '/Volumes/Builds/packages/big-sur-x86_64/Rlib/4.6/data.table/libs/data_table.so':
  dlopen(/Volumes/Builds/packages/big-sur-x86_64/Rlib/4.6/data.table/libs/data_table.so, 0x0006): Symbol not found: _IS_GROWABLE
  Referenced from: <A2E3C2EA-FFF1-35E6-9621-C23F120F8433> /Volumes/Builds/packages/big-sur-x86_64/Rlib/4.6/data.table/libs/data_table.so
  Expected in:     <0A9590E7-21FF-3C2D-B0BD-160A5BF4B716> /Library/Frameworks/R.framework/Versions/4.6-x86_64/Resources/lib/libR.dylib
Calls: <Anonymous> ... namespaceImport -> loadNamespace -> library.dynam -> dyn.load
Execution halted
ERROR: lazy loading failed for package ‘fastml’
* removing ‘/Volumes/Builds/packages/big-sur-x86_64/results/4.6/fastml.Rcheck/fastml’