fix(publish): Allow dry-run of a non-bumped workspace

Fixes #14789

src/cargo/sources/overlay.rs

@@ -63,24 +63,16 @@ impl<'gctx> Source for DependencyConfusionThreatOverlaySource<'gctx> {
         };
         ready!(self.local.query(&local_dep, kind, &mut local_callback))?;
 
-        let mut package_collision = None;
         let mut remote_callback = |index: IndexSummary| {
             if local_packages.contains(index.as_summary()) {
-                package_collision = Some(index.as_summary().clone());
+                tracing::debug!(?local_source, ?remote_source, ?index, "package collision");
+            } else {
+                f(index)
             }
-            f(index)
         };
         ready!(self.remote.query(dep, kind, &mut remote_callback))?;
 
-        if let Some(collision) = package_collision {
-            std::task::Poll::Ready(Err(anyhow::anyhow!(
-                "found a package in the remote registry and the local overlay: {}@{}",
-                collision.name(),
-                collision.version()
-            )))
-        } else {
-            std::task::Poll::Ready(Ok(()))
-        }
+        std::task::Poll::Ready(Ok(()))
     }
 
     fn invalidate_cache(&mut self) {

tests/testsuite/package.rs

@@ -6056,7 +6056,6 @@ fn workspace_with_local_dep_already_published_nightly() {
     p.cargo("package -Zpackage-workspace")
         .masquerade_as_nightly_cargo(&["package-workspace"])
         .replace_crates_io(reg.index_url())
-        .with_status(101)
         .with_stderr_data(
             str![[r#"
 [PACKAGING] dep v0.1.0 ([ROOT]/foo/dep)

tests/testsuite/registry_overlay.rs

@@ -133,7 +133,7 @@ fn overlay_version_wins() {
 }
 
 #[cargo_test]
-fn version_collision() {
+fn version_precedence() {
     let (reg, alt_path) = setup();
     let p = project()
         .file(
@@ -161,16 +161,13 @@ fn version_collision() {
 
     p.cargo("check")
         .overlay_registry(&reg.index_url(), &alt_path)
-        .with_status(101)
         .with_stderr_data(str![[r#"
 [UPDATING] `sparse+http://127.0.0.1:[..]/index/` index
-[ERROR] failed to get `baz` as a dependency of package `foo v0.0.1 ([ROOT]/foo)`
-
-Caused by:
-  failed to query replaced source registry `crates-io`
-
-Caused by:
-  found a package in the remote registry and the local overlay: [email protected]
+[LOCKING] 1 package to latest compatible version
+[UNPACKING] baz v0.1.1 (registry `[ROOT]/alternative-registry`)
+[CHECKING] baz v0.1.1
+[CHECKING] foo v0.0.1 ([ROOT]/foo)
+[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
 
 "#]])
         .run();