Auto merge of #111076 - notriddle:notriddle/silence-private-dep-trait-impl-suggestions, r=cjgillot

diagnostics: exclude indirect private deps from trait impl suggest

Fixes #88696

3 files changed, 9 insertions, 0 deletions

diff --git a/src/bootstrap/dist.rs b/src/bootstrap/dist.rs
index 46fc5b80e99..6a2409a0fbf 100644
--- a/src/bootstrap/dist.rs
+++ b/src/bootstrap/dist.rs
@@ -1009,6 +1009,9 @@ impl Step for PlainSourceTarball {
                 .arg(builder.src.join("./compiler/rustc_codegen_cranelift/Cargo.toml"))
                 .arg("--sync")
                 .arg(builder.src.join("./src/bootstrap/Cargo.toml"))
+                // Will read the libstd Cargo.toml
+                // which uses the unstable `public-dependency` feature.
+                .env("RUSTC_BOOTSTRAP", "1")
                 .current_dir(&plain_dst_src);
 
             let config = if !builder.config.dry_run() {
diff --git a/src/bootstrap/metadata.rs b/src/bootstrap/metadata.rs
index 8f2c3faca3a..3b20ceac875 100644
--- a/src/bootstrap/metadata.rs
+++ b/src/bootstrap/metadata.rs
@@ -74,6 +74,9 @@ fn workspace_members(build: &Build) -> impl Iterator<Item = Package> {
     let collect_metadata = |manifest_path| {
         let mut cargo = Command::new(&build.initial_cargo);
         cargo
+            // Will read the libstd Cargo.toml
+            // which uses the unstable `public-dependency` feature.
+            .env("RUSTC_BOOTSTRAP", "1")
             .arg("metadata")
             .arg("--format-version")
             .arg("1")
diff --git a/src/bootstrap/test.rs b/src/bootstrap/test.rs
index 3290e6e0309..6e573c2284e 100644
--- a/src/bootstrap/test.rs
+++ b/src/bootstrap/test.rs
@@ -2499,6 +2499,9 @@ impl Step for Distcheck {
         let toml = dir.join("rust-src/lib/rustlib/src/rust/library/std/Cargo.toml");
         builder.run(
             Command::new(&builder.initial_cargo)
+                // Will read the libstd Cargo.toml
+                // which uses the unstable `public-dependency` feature.
+                .env("RUSTC_BOOTSTRAP", "1")
                 .arg("generate-lockfile")
                 .arg("--manifest-path")
                 .arg(&toml)