ngx_regex_exec_n  216 src/core/ngx_regex.c                           ngx_regex_exec_n " failed: %i on \"%V\" using \"%s\"",
ngx_regex_exec_n 3444 src/http/modules/ngx_http_fastcgi_module.c                   ngx_regex_exec_n " failed: %i on \"%V\" using \"%V\"",
ngx_regex_exec_n 1914 src/http/modules/ngx_http_ssi_filter_module.c                       ngx_regex_exec_n " failed: %i on \"%V\" using \"%V\"",
ngx_regex_exec_n 2133 src/http/ngx_http_request.c                               ngx_regex_exec_n " failed: %i "
ngx_regex_exec_n 2406 src/http/ngx_http_variables.c                       ngx_regex_exec_n " failed: %i on \"%V\" using \"%V\"",