diff --git a/src/librustc_mir/borrow_check/nll/region_infer/dump_mir.rs b/src/librustc_mir/borrow_check/nll/region_infer/dump_mir.rs index 3c73203706dcb..7271503d57e9b 100644 --- a/src/librustc_mir/borrow_check/nll/region_infer/dump_mir.rs +++ b/src/librustc_mir/borrow_check/nll/region_infer/dump_mir.rs @@ -77,7 +77,7 @@ impl<'tcx> RegionInferenceContext<'tcx> { } let mut constraints: Vec<_> = self.constraints.iter().collect(); - constraints.sort(); + constraints.sort_unstable(); for constraint in &constraints { let OutlivesConstraint { sup, diff --git a/src/librustc_mir/borrow_check/nll/region_infer/error_reporting/mod.rs b/src/librustc_mir/borrow_check/nll/region_infer/error_reporting/mod.rs index 131e1defc1f9e..09cda59baa311 100644 --- a/src/librustc_mir/borrow_check/nll/region_infer/error_reporting/mod.rs +++ b/src/librustc_mir/borrow_check/nll/region_infer/error_reporting/mod.rs @@ -227,7 +227,7 @@ impl<'tcx> RegionInferenceContext<'tcx> { debug!("report_error: categorized_path={:?}", categorized_path); // Find what appears to be the most interesting path to report to the user. - categorized_path.sort_by(|p0, p1| p0.0.cmp(&p1.0)); + categorized_path.sort_unstable_by(|p0, p1| p0.0.cmp(&p1.0)); debug!("report_error: sorted_path={:?}", categorized_path); // Get a span diff --git a/src/librustc_mir/borrow_check/nll/region_infer/mod.rs b/src/librustc_mir/borrow_check/nll/region_infer/mod.rs index 52f596f61c2e8..30a1dfc4b777d 100644 --- a/src/librustc_mir/borrow_check/nll/region_infer/mod.rs +++ b/src/librustc_mir/borrow_check/nll/region_infer/mod.rs @@ -418,7 +418,7 @@ impl<'tcx> RegionInferenceContext<'tcx> { debug!("propagate_constraints: constraints={:#?}", { let mut constraints: Vec<_> = self.constraints.iter().collect(); - constraints.sort(); + constraints.sort_unstable(); constraints });