unrecognized import path与 go get

我试图安装web.go，但运行go get github.com/hoisie/web返回

package bufio: unrecognized import path "bufio"
package bytes: unrecognized import path "bytes"
package crypto/rand: unrecognized import path "crypto/rand"
package crypto/sha1: unrecognized import path "crypto/sha1"
package crypto/tls: unrecognized import path "crypto/tls"
package encoding/base64: unrecognized import path "encoding/base64"
package encoding/binary: unrecognized import path "encoding/binary"
package encoding/json: unrecognized import path "encoding/json"
package errors: unrecognized import path "errors"
package fmt: unrecognized import path "fmt"

这种情况在各种包裹中持续了一段时间，之后就不再返回任何其他Package.go env给了我:

GOARCH="amd64"
GOBIN="/usr/local/go/bin"
GOCHAR="6"
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH=""
GORACE=""
GOROOT="/home/me/go"
GOTOOLDIR="/home/me/go/pkg/tool/linux_amd64"
TERM="dumb"
CC="gcc"
GOGCCFLAGS="-g -O2 -fPIC -m64 -pthread"
CXX="g++"
CGO_ENABLED="1"

我怎样才能安装web.go？使用go get(而不是go install)是GitHub页面自述文件中的内容.我的围棋版本是go version go1.2 linux/amd64.