diff --git a/src/librustc/diagnostics.rs b/src/librustc/diagnostics.rs
index 7cb2de78e2c..361b8c53108 100644
--- a/src/librustc/diagnostics.rs
+++ b/src/librustc/diagnostics.rs
@@ -858,6 +858,9 @@ It is also possible to manually transmute:
 ```
 ptr::read(&v as *const _ as *const SomeType) // `v` transmuted to `SomeType`
 ```
+
+Note that this does not move `v` (unlike `transmute`), and may need a
+call to `mem::forget(v)` in case you want to avoid destructors being called.
 "##,
 
 E0152: r##"
diff --git a/src/librustc_driver/lib.rs b/src/librustc_driver/lib.rs
index 63326c538c9..6cbba235ff7 100644
--- a/src/librustc_driver/lib.rs
+++ b/src/librustc_driver/lib.rs
@@ -907,6 +907,8 @@ pub fn diagnostics_registry() -> diagnostics::registry::Registry {
     all_errors.push_all(&rustc_typeck::DIAGNOSTICS);
     all_errors.push_all(&rustc_borrowck::DIAGNOSTICS);
     all_errors.push_all(&rustc_resolve::DIAGNOSTICS);
+    all_errors.push_all(&rustc_privacy::DIAGNOSTICS);
+    all_errors.push_all(&rustc_trans::DIAGNOSTICS);
 
     Registry::new(&*all_errors)
 }
diff --git a/src/librustc_privacy/lib.rs b/src/librustc_privacy/lib.rs
index 1ca8eeadfe5..fdd5add68f2 100644
--- a/src/librustc_privacy/lib.rs
+++ b/src/librustc_privacy/lib.rs
@@ -1505,3 +1505,5 @@ pub fn check_crate(tcx: &ty::ctxt,
 
     access_levels
 }
+
+__build_diagnostic_array! { librustc_privacy, DIAGNOSTICS }
diff --git a/src/librustc_trans/lib.rs b/src/librustc_trans/lib.rs
index 84ce458ed14..6b465cf28f3 100644
--- a/src/librustc_trans/lib.rs
+++ b/src/librustc_trans/lib.rs
@@ -89,3 +89,5 @@ pub mod save;
 pub mod lib {
     pub use llvm;
 }
+
+__build_diagnostic_array! { librustc_trans, DIAGNOSTICS }