Consul GRPC 健康检查失败问题

Consul 注册的信息

reg := api.AgentServiceRegistration{
	ID:      strconv.FormatInt(time.Now().UnixNano(), 10),
	Name:    name,
	Address: listen,
	Port:    port,
	Check:   &api.AgentServiceCheck{
		GRPC:     fmt.Sprintf("%v:%v/%v", listen, port, name),
		Interval: "5s",
		Notes:    "Consul check service health status.",
		DeregisterCriticalServiceAfter: "10s",
	},
}

我按照 https://www.consul.io/docs/discovery/checks 里的 grpc 检查里，写了个 proto

syntax = "proto3";

package grpc_health_v1;
option go_package = ".;grpc_health_v1";

message HealthCheckRequest {
    string service = 1;
}

message HealthCheckResponse {
    enum ServingStatus {
        UNKNOWN = 0;
        SERVING = 1;
        NOT_SERVING = 2;
        SERVICE_UNKNOWN = 3;  // Used only by the Watch method.
    }
    ServingStatus status = 1;
}

service Health {
    rpc Check(HealthCheckRequest) returns (HealthCheckResponse);

    rpc Watch(HealthCheckRequest) returns (stream HealthCheckResponse);
}

我用 BloomRPC 和自己写的 client 都能正常访问这个 Check 方法，但是注册上了 Consul 却显示失败