Thank you for your reply.
The project still builded failed after i turned off Antivirus and firewall.
Some kind of resources get from a website during build, but have no response. Is this the cause of the build failure? (my network can google…)
go: github.com/AudriusButkevicius/pfilter@v0.0.0-20190627213056-c55ef6137fc6: Get "https://proxy.golang.org/github.com/%21audrius%21butkevicius/p
filter/@v/v0.0.0-20190627213056-c55ef6137fc6.mod": dial tcp 216.58.197.113:443: connectex: A connection attempt failed because the connected part
y did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
The escapes are apparently an expected part of the proxy protocol. So the issue here is just that you can’t access proxy.golang.org which is a network (or censoring) issue you need to work out on your side.