Package feather version 0.3.5
Package built using 82503/R 4.3.0; x86_64-pc-linux-gnu; 2022-06-21 09:23:15 UTC; unix   
Checked with rchk version 29e18222e1cfa67ba8e63bd3b22a25f78593c554 LLVM version 14.0.0
More information at https://github.com/kalibera/cran-checks/blob/master/rchk/PROTECT.md
For rchk in docker image see https://github.com/kalibera/rchk/blob/master/doc/DOCKER.md

Function toSEXP(std::__1::unique_ptr<feather::Column, std::__1::default_delete<feather::Column> > const&)
  [UP] unprotected variable <unnamed var:   %2 = alloca %struct.SEXPREC*, align 8> while calling allocating function std::__1::shared_ptr<feather::metadata::Column>::~shared_ptr() feather/src/feather-types.cpp:293