c.Check(rr.Code, check.Equals, http.StatusUnprocessableEntity)
c.Check(rr.Body.String(), check.Not(check.Matches), `.*"uuid":.*`)
_, rr, jresp = doRequest(c, s.rtr, token, "POST", "/arvados/v1/containers/"+uuid+"/unlock", nil, nil)
c.Check(rr.Code, check.Equals, http.StatusUnprocessableEntity)
c.Check(rr.Body.String(), check.Not(check.Matches), `.*"uuid":.*`)
_, rr, jresp = doRequest(c, s.rtr, token, "POST", "/arvados/v1/containers/"+uuid+"/unlock", nil, nil)