升级到Go1.18版本后，编译时报错，如下：
# golang.org/x/sys/unix
../vendor/golang.org/x/sys/unix/syscall_darwin.1_13.go:25:3: //go:linkname must refer to declared function or variable
../vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.1_13.go:27:3: //go:linkname must refer to declared function or variable
../vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.1_13.go:40:3: //go:linkname must refer to declared function or variable
../vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.go:28:3: //go:linkname must refer to declared function or variable
../vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.go:43:3: //go:linkname must refer to declared function or variable
../vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.go:59:3: //go:linkname must refer to declared function or variable
../vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.go:75:3: //go:linkname must refer to declared function or variable
../vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.go:90:3: //go:linkname must refer to declared function or variable
../vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.go:105:3: //go:linkname must refer to declared function or variable
../vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.go:121:3: //go:linkname must refer to declared function or variable
../vendor/golang.org/x/sys/unix/zsyscall_darwin_amd64.go:121:3: too many errors
解决方法：
go get -u golang.org/x/sys
效果如下：
➜ server ~go get -u golang.org/x/sys
go: downloading golang.org/x/sys v0.0.0-20220328115105-d36c6a25d886
go: upgraded golang.org/x/sys v0.0.0-20200116001909-b77594299b42 => v0.0.0-20220328115105-d36c6a25d886
➜ server ~ go run main.go
go: inconsistent vendoring in /Users/makesure10/Desktop/goworkspace/src/ddagent:
golang.org/x/sys@v0.0.0-20220328115105-d36c6a25d886: is explicitly required in go.mod, but not marked as explicit in vendor/modules.txt
golang.org/x/sys@v0.0.0-20200116001909-b77594299b42: is marked as explicit in vendor/modules.txt, but not explicitly required in go.mod
To ignore the vendor directory, use -mod=readonly or -mod=mod.
To sync the vendor directory, run:
go mod vendor
➜ server ~go mod vendor
➜ server ~ go run main.go