build-manifest: stop generating numbered channel names except for stable

This fixes numbered channel names being created for the nightly channel,
and once the root cause of this rides the trains, for beta.

1 files changed, 5 insertions, 4 deletions

diff --git a/src/tools/build-manifest/src/main.rs b/src/tools/build-manifest/src/main.rs
index b35f3a595fb..7ee28cd6e5d 100644
--- a/src/tools/build-manifest/src/main.rs
+++ b/src/tools/build-manifest/src/main.rs
@@ -252,12 +252,13 @@ impl Builder {
         }
         let manifest = self.build_manifest();
 
-        let rust_version = self.versions.rustc_version();
         self.write_channel_files(self.versions.channel(), &manifest);
-        if self.versions.channel() != rust_version {
-            self.write_channel_files(&rust_version, &manifest);
-        }
         if self.versions.channel() == "stable" {
+            // channel-rust-1.XX.YY.toml
+            let rust_version = self.versions.rustc_version();
+            self.write_channel_files(rust_version, &manifest);
+
+            // channel-rust-1.XX.toml
             let major_minor = rust_version.split('.').take(2).collect::<Vec<_>>().join(".");
             self.write_channel_files(&major_minor, &manifest);
         }