一、出现问题

# get https://proxy.golang.com.cn/github.com/bytedance/sonic/loader/@v/v0.1.0.mod
# get https://proxy.golang.com.cn/github.com/bytedance/sonic/loader/@v/v0.1.0.mod: 200 OK (0.718s)
go: github.com/bytedance/sonic@v1.11.5 requires
	github.com/bytedance/sonic/loader@v0.1.0: verifying go.mod: checksum mismatch
	downloaded: h1:ncP89zfokxS5LZrJxl5z0UJcsk4M4yY2JpfqGeCtNLU=
	sum.golang.org: h1:UmRT+IRTGKz/DAkzcEGzyVqQFJ7H9BqwBO3pm9H/+HY=

SECURITY ERROR
This download does NOT match the one reported by the checksum server.
The bits may have been replaced on the origin server, or an attacker may
have intercepted the download attempt.

For more information, see 'go help module-auth'.

二、解决方法

go env -w GOSUMDB=off

go env -w GOSUMDB=GOSUMDB="sum.golang.org"