https://buildbot.torproject.org/tor-master/builders/master-win32/builds/416/steps/shell_3/logs/stdio says ``` cc1.exe: warnings being treated as errors dns.c: In function 'purge_expired_resolves': dns.c:457:9: error: comparison between signed and unsigned integer expressions dns.c: In function 'dns_resolve_impl': dns.c:684:3: error: comparison between signed and unsigned integer expressions dns.c: In function 'assert_all_pending_dns_resolves_ok': dns.c:852:7: error: comparison between signed and unsigned integer expressions dns.c: In function 'dns_cancel_pending_resolve': dns.c:958:5: error: comparison between signed and unsigned integer expressions ``` These are lines like ``` tor_assert(pend->conn->_base.s == TOR_INVALID_SOCKET); ``` Looks related to commit 6e8c2a3e, from work on legacy/trac#4533.