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/home/fagg/src/fmt/test/posix-mock-test.cc:197:13: warning: unused function 'write_file' [-Wunused-function]
static void write_file(fmt::cstring_view filename, fmt::string_view content) {
            ^
1 warning generated.
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/home/fagg/src/fmt/test/gtest-extra-test.cc:26:13: error: unused function 'sanitize' [-Werror,-Wunused-function]
std::string sanitize(const std::string& s) {
            ^
1 error generated.
*** Error 1 in . (test/CMakeFiles/gtest-extra-test.dir/build.make:83 'test/CMakeFiles/gtest-extra-test.dir/gtest-extra-test.cc.o': cd /home/...)
*** Error 2 in . (CMakeFiles/Makefile2:632 'test/CMakeFiles/gtest-extra-test.dir/all': make -s -f test/CMakeFiles/gtest-extra-test.dir/build...)
*** Error 2 in /home/fagg/src/fmt/build (Makefile:183 'all': make -s -f CMakeFiles/Makefile2 all)