diff --git a/compiler/rustc_const_eval/src/const_eval/mod.rs b/compiler/rustc_const_eval/src/const_eval/mod.rs
index 284eb912c20..48aeee2e6f0 100644
--- a/compiler/rustc_const_eval/src/const_eval/mod.rs
+++ b/compiler/rustc_const_eval/src/const_eval/mod.rs
@@ -16,12 +16,12 @@
 mod machine;
 mod valtrees;
 
-pub use dummy_machine::*;
-pub use error::*;
-pub use eval_queries::*;
-pub use fn_queries::*;
-pub use machine::*;
-pub(crate) use valtrees::{eval_to_valtree, valtree_to_const_value};
+pub use self::dummy_machine::*;
+pub use self::error::*;
+pub use self::eval_queries::*;
+pub use self::fn_queries::*;
+pub use self::machine::*;
+pub(crate) use self::valtrees::{eval_to_valtree, valtree_to_const_value};
 
 // We forbid type-level constants that contain more than `VALTREE_MAX_NODES` nodes.
 const VALTREE_MAX_NODES: usize = 100000;
diff --git a/compiler/rustc_const_eval/src/interpret/mod.rs b/compiler/rustc_const_eval/src/interpret/mod.rs
index 669f5a597f8..5e84626f77e 100644
--- a/compiler/rustc_const_eval/src/interpret/mod.rs
+++ b/compiler/rustc_const_eval/src/interpret/mod.rs
@@ -19,12 +19,12 @@
 mod validity;
 mod visitor;
 
-use eval_context::{from_known_layout, mir_assign_valid_types};
 #[doc(no_inline)]
 pub use rustc_middle::mir::interpret::*; // have all the `interpret` symbols in one place: here
 
 pub use self::call::FnArg;
 pub use self::eval_context::{InterpCx, format_interp_error};
+use self::eval_context::{from_known_layout, mir_assign_valid_types};
 pub use self::intern::{
     HasStaticRootDefId, InternKind, InternResult, intern_const_alloc_for_constprop,
     intern_const_alloc_recursive,
diff --git a/compiler/rustc_const_eval/src/lib.rs b/compiler/rustc_const_eval/src/lib.rs
index 73dda81bd29..cbe8a043fba 100644
--- a/compiler/rustc_const_eval/src/lib.rs
+++ b/compiler/rustc_const_eval/src/lib.rs
@@ -1,6 +1,8 @@
 // tidy-alphabetical-start
 #![allow(internal_features)]
 #![allow(rustc::diagnostic_outside_of_impl)]
+#![cfg_attr(not(bootstrap), feature(unqualified_local_imports))]
+#![cfg_attr(not(bootstrap), warn(unqualified_local_imports))]
 #![doc(rust_logo)]
 #![feature(assert_matches)]
 #![feature(box_patterns)]
@@ -25,10 +27,11 @@
 
 use std::sync::atomic::AtomicBool;
 
-pub use errors::ReportErrorExt;
 use rustc_middle::ty;
 use rustc_middle::util::Providers;
 
+pub use self::errors::ReportErrorExt;
+
 rustc_fluent_macro::fluent_messages! { "../messages.ftl" }
 
 pub fn provide(providers: &mut Providers) {