Using latest git; ./A05execution.ztst: starting. This test takes 5 seconds to fail... Pattern match failed:####### <\[<->\] <-> <-> >[8] 3212 4644 >[6] - 2456 running sleep 1000 Test ./A05execution.ztst failed: output differs from expected as shown above for: { setopt MONITOR } 2>/dev/null if [[ -o MONITOR ]] then ( while :; do print "This is a line"; done ) | () : & sleep 1 jobs -l else print -u $ZTST_fd "Skipping pipe leak test, requires MONITOR option" print "[0] 0 0" fi Was testing: Bug regression: piping to anonymous function; piping to backround function ./A05execution.ztst: test failed. zsh configured with: ./configure --enable-multibyte --enable-pcre on x86-64 Cygwin.