Auto merge of #119889 - GuillaumeGomez:rollup-ah3dhya, r=GuillaumeGomez

Rollup of 6 pull requests

Successful merges:

 - #119817 (Remove special-casing around `AliasKind::Opaque` when structurally resolving in new solver)
 - #119819 (Check rust lints when an unknown lint is detected)
 - #119872 (Give me a way to emit all the delayed bugs as errors (add `-Zeagerly-emit-delayed-bugs`))
 - #119877 (Add more information to `visit_projection_elem`)
 - #119884 (Rename `--env` option flag to `--env-set`)
 - #119885 (Revert #113923)

r? `@ghost`
`@rustbot` modify labels: rollup

1 files changed, 7 insertions, 1 deletions

diff --git a/compiler/rustc_codegen_ssa/src/base.rs b/compiler/rustc_codegen_ssa/src/base.rs
index 9d1729c4b54..0ad4af968db 100644
--- a/compiler/rustc_codegen_ssa/src/base.rs
+++ b/compiler/rustc_codegen_ssa/src/base.rs
@@ -859,6 +859,7 @@ impl CrateInfo {
             local_crate_name,
             compiler_builtins,
             profiler_runtime: None,
+            is_no_builtins: Default::default(),
             native_libraries: Default::default(),
             used_libraries: tcx.native_libraries(LOCAL_CRATE).iter().map(Into::into).collect(),
             crate_name: Default::default(),
@@ -885,6 +886,9 @@ impl CrateInfo {
             if tcx.is_profiler_runtime(cnum) {
                 info.profiler_runtime = Some(cnum);
             }
+            if tcx.is_no_builtins(cnum) {
+                info.is_no_builtins.insert(cnum);
+            }
         }
 
         // Handle circular dependencies in the standard library.
@@ -892,7 +896,9 @@ impl CrateInfo {
         // If global LTO is enabled then almost everything (*) is glued into a single object file,
         // so this logic is not necessary and can cause issues on some targets (due to weak lang
         // item symbols being "privatized" to that object file), so we disable it.
-        // (*) Native libs are not glued, and we assume that they cannot define weak lang items.
+        // (*) Native libs, and `#[compiler_builtins]` and `#[no_builtins]` crates are not glued,
+        // and we assume that they cannot define weak lang items. This is not currently enforced
+        // by the compiler, but that's ok because all this stuff is unstable anyway.
         let target = &tcx.sess.target;
         if !are_upstream_rust_objects_already_included(tcx.sess) {
             let missing_weak_lang_items: FxHashSet<Symbol> = info