why no executable file: dns_resolver generated?

[luckypoem]

hi. in $GOPATH,I RAN "go get -u -v github.com/bogdanovich/dns_resolver" AS FOLLOWS:

yudeMacBook-Air:gopath brite$ go get -u -v github.com/bogdanovich/dns_resolver github.com/bogdanovich/dns_resolver (download)

cd .; git clone https://github.com/bogdanovich/dns_resolver /Users/yuming/go1.10.2/go/gopath/src/github.com/bogdanovich/dns_resolver

Cloning into '/Users/yuming/go1.10.2/go/gopath/src/github.com/bogdanovich/dns_resolver'... fatal: unable to access 'https://github.com/bogdanovich/dns_resolver/': Failed to connect to github.com port 443: Operation timed out package github.com/bogdanovich/dns_resolver: exit status 128 yudeMacBook-Air:gopath brite$ yudeMacBook-Air:gopath brite$ go get -u -v github.com/bogdanovich/dns_resolver github.com/bogdanovich/dns_resolver (download) github.com/miekg/dns (download) Fetching https://golang.org/x/crypto/ed25519?go-get=1 Parsing meta tags from https://golang.org/x/crypto/ed25519?go-get=1 (status code 200) get "golang.org/x/crypto/ed25519": found meta tag get.metaImport{Prefix:"golang.org/x/crypto", VCS:"git", RepoRoot:"https://go.googlesource.com/crypto"} at https://golang.org/x/crypto/ed25519?go-get=1 get "golang.org/x/crypto/ed25519": verifying non-authoritative meta tag Fetching https://golang.org/x/crypto?go-get=1 Parsing meta tags from https://golang.org/x/crypto?go-get=1 (status code 200) golang.org/x/crypto (download) Fetching https://golang.org/x/crypto/ed25519/internal/edwards25519?go-get=1 Parsing meta tags from https://golang.org/x/crypto/ed25519/internal/edwards25519?go-get=1 (status code 200) get "golang.org/x/crypto/ed25519/internal/edwards25519": found meta tag get.metaImport{Prefix:"golang.org/x/crypto", VCS:"git", RepoRoot:"https://go.googlesource.com/crypto"} at https://golang.org/x/crypto/ed25519/internal/edwards25519?go-get=1 get "golang.org/x/crypto/ed25519/internal/edwards25519": verifying non-authoritative meta tag Fetching https://golang.org/x/net/ipv4?go-get=1 Parsing meta tags from https://golang.org/x/net/ipv4?go-get=1 (status code 200) get "golang.org/x/net/ipv4": found meta tag get.metaImport{Prefix:"golang.org/x/net", VCS:"git", RepoRoot:"https://go.googlesource.com/net"} at https://golang.org/x/net/ipv4?go-get=1 get "golang.org/x/net/ipv4": verifying non-authoritative meta tag Fetching https://golang.org/x/net?go-get=1 Parsing meta tags from https://golang.org/x/net?go-get=1 (status code 200) golang.org/x/net (download) Fetching https://golang.org/x/net/bpf?go-get=1 Parsing meta tags from https://golang.org/x/net/bpf?go-get=1 (status code 200) get "golang.org/x/net/bpf": found meta tag get.metaImport{Prefix:"golang.org/x/net", VCS:"git", RepoRoot:"https://go.googlesource.com/net"} at https://golang.org/x/net/bpf?go-get=1 get "golang.org/x/net/bpf": verifying non-authoritative meta tag Fetching https://golang.org/x/net/internal/iana?go-get=1 Parsing meta tags from https://golang.org/x/net/internal/iana?go-get=1 (status code 200) get "golang.org/x/net/internal/iana": found meta tag get.metaImport{Prefix:"golang.org/x/net", VCS:"git", RepoRoot:"https://go.googlesource.com/net"} at https://golang.org/x/net/internal/iana?go-get=1 get "golang.org/x/net/internal/iana": verifying non-authoritative meta tag Fetching https://golang.org/x/net/internal/socket?go-get=1 Parsing meta tags from https://golang.org/x/net/internal/socket?go-get=1 (status code 200) get "golang.org/x/net/internal/socket": found meta tag get.metaImport{Prefix:"golang.org/x/net", VCS:"git", RepoRoot:"https://go.googlesource.com/net"} at https://golang.org/x/net/internal/socket?go-get=1 get "golang.org/x/net/internal/socket": verifying non-authoritative meta tag Fetching https://golang.org/x/sys/unix?go-get=1 Parsing meta tags from https://golang.org/x/sys/unix?go-get=1 (status code 200) get "golang.org/x/sys/unix": found meta tag get.metaImport{Prefix:"golang.org/x/sys", VCS:"git", RepoRoot:"https://go.googlesource.com/sys"} at https://golang.org/x/sys/unix?go-get=1 get "golang.org/x/sys/unix": verifying non-authoritative meta tag Fetching https://golang.org/x/sys?go-get=1 Parsing meta tags from https://golang.org/x/sys?go-get=1 (status code 200) golang.org/x/sys (download) Fetching https://golang.org/x/net/ipv6?go-get=1 Parsing meta tags from https://golang.org/x/net/ipv6?go-get=1 (status code 200) get "golang.org/x/net/ipv6": found meta tag get.metaImport{Prefix:"golang.org/x/net", VCS:"git", RepoRoot:"https://go.googlesource.com/net"} at https://golang.org/x/net/ipv6?go-get=1 get "golang.org/x/net/ipv6": verifying non-authoritative meta tag github.com/bogdanovich/dns_resolver yudeMacBook-Air:gopath brite$ which dns_resolver yudeMacBook-Air:gopath brite$

thank