Package jpeg version 0.1-9 Package built using 82396/R 4.3.0; x86_64-pc-linux-gnu; 2022-05-24 10:35:02 UTC; unix Checked with rchk version 35d5d01a98903a5f3e9ec166dcdb2f790ecb784f LLVM version 12.0.1 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 Suspicious call (two or more unprotected arguments) to Rf_setAttrib at read_jpeg jpeg/src/read.c:131