Use fully qualified path for futures_core::Stream in codegen (#591)

tests/stream_conflict/Cargo.toml

@@ -0,0 +1,15 @@
+[package]
+name = "stream_conflict"
+version = "0.1.0"
+authors = ["Ben Sully <[email protected]>"]
+publish = false
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+tonic = { path = "../../tonic" }
+prost = "0.7"
+
+[build-dependencies]
+tonic-build = { path = "../../tonic-build" }

tests/stream_conflict/build.rs

@@ -0,0 +1,3 @@
+fn main() {
+    tonic_build::compile_protos("proto/stream_conflict.proto").unwrap();
+}

tests/stream_conflict/proto/stream_conflict.proto

@@ -0,0 +1,10 @@
+syntax = "proto3";
+package StreamConflict;
+
+message Message {
+  bool ok = 1;
+}
+
+service Stream {
+  rpc RunStream(Message) returns (stream Message);
+}

tests/stream_conflict/src/main.rs

@@ -0,0 +1,7 @@
+mod stream_conflict {
+    tonic::include_proto!("stream_conflict");
+}
+
+fn main() {
+    println!("Hello, world!");
+}