These clones are no longer needed.

Author: amandasystems

compiler/rustc_borrowck/src/type_check/free_region_relations.rs

@@ -19,7 +19,6 @@ use crate::type_check::{Locations, MirTypeckRegionConstraints, constraint_conver
 use crate::universal_regions::UniversalRegions;
 
 #[derive(Debug)]
-#[derive(Clone)] // FIXME(#146079)
 pub(crate) struct UniversalRegionRelations<'tcx> {
     pub(crate) universal_regions: UniversalRegions<'tcx>,
 

compiler/rustc_borrowck/src/type_check/mod.rs

@@ -265,7 +265,6 @@ pub(crate) struct MirTypeckResults<'tcx> {
 
 /// A collection of region constraints that must be satisfied for the
 /// program to be considered well-typed.
-#[derive(Clone)] // FIXME(#146079)
 pub(crate) struct MirTypeckRegionConstraints<'tcx> {
     /// Maps from a `ty::Placeholder` to the corresponding
     /// `PlaceholderIndex` bit that we will use for it.

compiler/rustc_borrowck/src/universal_regions.rs

@@ -37,7 +37,6 @@ use crate::BorrowckInferCtxt;
 use crate::renumber::RegionCtxt;
 
 #[derive(Debug)]
-#[derive(Clone)] // FIXME(#146079)
 pub(crate) struct UniversalRegions<'tcx> {
     indices: UniversalRegionIndices<'tcx>,
 
@@ -201,7 +200,6 @@ impl<'tcx> DefiningTy<'tcx> {
 }
 
 #[derive(Debug)]
-#[derive(Clone)] // FIXME(#146079)
 struct UniversalRegionIndices<'tcx> {
     /// For those regions that may appear in the parameter environment
     /// ('static and early-bound regions), we maintain a map from the