90     std::error_code ec;  in rename()  local
91     std::filesystem::rename(from, to, ec);  in rename()
92     if (ec) {  in rename()
93         LOG(ERROR) << "Can't rename " << from << " to " << to << ": " << ec.message();  in rename()
100     std::error_code ec;  in removeDirectory()  local
101     auto num_removed = std::filesystem::remove_all(directory, ec);  in removeDirectory()
102     if (ec) {  in removeDirectory()
103         LOG(ERROR) << "Can't remove " << directory << ": " << ec.message();  in removeDirectory()
114     std::error_code ec;  in directoryHasContent()  local
115     return std::filesystem::is_directory(directory, ec) &&  in directoryHasContent()
116            !std::filesystem::is_empty(directory, ec);  in directoryHasContent()
181     std::error_code ec;  in computeDigests()  local
184     auto it = std::filesystem::recursive_directory_iterator(path, ec);  in computeDigests()
187     while (!ec && it != end) {  in computeDigests()
198     if (ec) {  in computeDigests()
199         return Error() << "Failed to iterate " << path << ": " << ec;  in computeDigests()