Cleanup some issues with exec

Signed-off-by: Brian Goff <cpuguy83@gmail.com>

api/client/hijack.go

@@ -239,14 +239,13 @@ func (cli *DockerCli) hijack(method, path string, setRawTerminal bool, in io.Rea
 	case err := <-receiveStdout:
 		if err != nil {
 			logrus.Debugf("Error receiveStdout: %s", err)
-		}
-		if cli.isTerminalIn {
-			return nil
+			return err
 		}
 	case <-stdinDone:
 		if stdout != nil || stderr != nil {
 			if err := <-receiveStdout; err != nil {
 				logrus.Debugf("Error receiveStdout: %s", err)
+				return err
 			}
 		}
 	}

api/server/router/local/exec.go

@@ -109,7 +109,7 @@ func (s *router) postContainerExecStart(ctx context.Context, w http.ResponseWrit
 		if execStartCheck.Detach {
 			return err
 		}
-		fmt.Fprintf(outStream, "Error running exec in container: %v\n", err)
+		logrus.Errorf("Error running exec in container: %v\n", err)
 	}
 	return nil
 }