* using log directory 'd:/Rcompile/CRANpkg/local/3.6/Signac.Rcheck' * using R version 3.6.3 (2020-02-29) * using platform: x86_64-w64-mingw32 (64-bit) * using session charset: ISO8859-1 * checking for file 'Signac/DESCRIPTION' ... OK * this is package 'Signac' version '1.1.1' * package encoding: UTF-8 * checking package namespace information ... OK * checking package dependencies ... OK * checking if this is a source package ... OK * checking if there is a namespace ... OK * checking for hidden files and directories ... OK * checking for portable file names ... OK * checking whether package 'Signac' can be installed ... ERROR Installation failed. See 'd:/Rcompile/CRANpkg/local/3.6/Signac.Rcheck/00install.out' for details. * DONE The installation logfile: * installing *source* package 'Signac' ... ** package 'Signac' successfully unpacked and MD5 sums checked ** using staged installation ** libs *** arch - i386 make[1]: Entering directory `/cygdrive/d/temp/RtmpmYbVHZ/R.INSTALL10d245648817/Signac/src-i386' d:/Compiler/gcc-4.9.3/mingw_32/bin/g++ -std=gnu++11 -I"D:/RCompile/recent/R-3.6.3/include" -DNDEBUG -I"d:/RCompile/CRANpkg/lib/3.6/Rcpp/include" -I"d:/Compiler/gcc-4.9.3/local330/include" -O2 -Wall -mtune=core2 -c RcppExports.cpp -o RcppExports.o d:/Compiler/gcc-4.9.3/mingw_32/bin/g++ -std=gnu++11 -I"D:/RCompile/recent/R-3.6.3/include" -DNDEBUG -I"d:/RCompile/CRANpkg/lib/3.6/Rcpp/include" -I"d:/Compiler/gcc-4.9.3/local330/include" -O2 -Wall -mtune=core2 -c filter.cpp -o filter.o d:/Compiler/gcc-4.9.3/mingw_32/bin/g++ -std=gnu++11 -I"D:/RCompile/recent/R-3.6.3/include" -DNDEBUG -I"d:/RCompile/CRANpkg/lib/3.6/Rcpp/include" -I"d:/Compiler/gcc-4.9.3/local330/include" -O2 -Wall -mtune=core2 -c group.cpp -o group.o group.cpp: In function 'SEXPREC* groupCommand(std::string, Rcpp::Nullable >, std::size_t, bool)': group.cpp:40:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (size_t i=0; i >, std::size_t, bool)': group.cpp:40:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (size_t i=0; i