无法从git对git post-update钩子获取依赖关系

I have a golang project and i want to build it on server as I push it

post-update hook is fired, everything nice, project is checked out to some directory, but, after it attempts to get dependency (cd /go/src/kiyanov.com/app/ and go get ) it fails with an error

remote # cd /go/src/github.com/dgrijalva/jwt-go; git show-ref remote: fatal: Not a git repository: '.' remote: package github.com/dgrijalva/jwt-go: exit status 128

remote # cd /go/src/github.com/lib/pq; git show-ref remote: fatal: Not a git repository: '.' remote: package github.com/lib/pq: exit status 128

remote: # cd /go/src/golang.org/x/oauth2; git show-ref remote: fatal: Not a git repository: '.' remote: package golang.org/x/oauth2: exit status 128

gopath is exported properly, and packages are downloaded. but go install following after this commands are failed

go install works fine after the following push, once post-update make everything again in existing directory.

I don't have any ideas why it not works .The only suggestion cause it happens inside post-update hook, but i'm not sure.

My solution was to install Jenkins, move all scripts to it, and initiate building with Jenkins from post-update script