diff --git a/src/librustc_mir/error_codes.rs b/src/librustc_mir/error_codes.rs
index 618c047e773..83d441b90be 100644
--- a/src/librustc_mir/error_codes.rs
+++ b/src/librustc_mir/error_codes.rs
@@ -2462,12 +2462,12 @@ register_diagnostics! {
 //  E0298, // cannot compare constants
 //  E0299, // mismatched types between arms
 //  E0471, // constant evaluation error (in pattern)
-//    E0385, // {} in an aliasable location
+//  E0385, // {} in an aliasable location
     E0493, // destructors cannot be evaluated at compile-time
-    E0521,  // borrowed data escapes outside of closure
+    E0521, // borrowed data escapes outside of closure
     E0524, // two closures require unique access to `..` at the same time
     E0526, // shuffle indices are not constant
     E0594, // cannot assign to {}
-    E0598, // lifetime of {} is too short to guarantee its contents can be...
+//  E0598, // lifetime of {} is too short to guarantee its contents can be...
     E0625, // thread-local statics cannot be accessed at compile-time
 }
diff --git a/src/librustc_mir/util/borrowck_errors.rs b/src/librustc_mir/util/borrowck_errors.rs
index bce6761e2ca..7c7e4de316f 100644
--- a/src/librustc_mir/util/borrowck_errors.rs
+++ b/src/librustc_mir/util/borrowck_errors.rs
@@ -300,16 +300,6 @@ pub trait BorrowckErrors<'cx>: Sized + Copy {
         err
     }
 
-    fn cannot_move_into_closure(self, span: Span, desc: &str, _: Origin) -> DiagnosticBuilder<'cx> {
-        struct_span_err!(
-            self,
-            span,
-            E0504,
-            "cannot move `{}` into closure because it is borrowed",
-            desc,
-        )
-    }
-
     fn cannot_reassign_immutable(
         self,
         span: Span,
@@ -336,10 +326,6 @@ pub trait BorrowckErrors<'cx>: Sized + Copy {
         struct_span_err!(self, span, E0594, "cannot assign to {}", desc)
     }
 
-    fn cannot_assign_static(self, span: Span, desc: &str, o: Origin) -> DiagnosticBuilder<'cx> {
-        self.cannot_assign(span, &format!("immutable static item `{}`", desc), o)
-    }
-
     fn cannot_move_out_of(
         self,
         move_from_span: Span,
@@ -422,36 +408,6 @@ pub trait BorrowckErrors<'cx>: Sized + Copy {
         )
     }
 
-    fn cannot_partially_reinit_an_uninit_struct(
-        self,
-        span: Span,
-        uninit_path: &str,
-        _: Origin,
-    ) -> DiagnosticBuilder<'cx> {
-        struct_span_err!(
-            self,
-            span,
-            E0383,
-            "partial reinitialization of uninitialized structure `{}`",
-            uninit_path,
-        )
-    }
-
-    fn closure_cannot_assign_to_borrowed(
-        self,
-        span: Span,
-        descr: &str,
-        _: Origin,
-    ) -> DiagnosticBuilder<'cx> {
-        struct_span_err!(
-            self,
-            span,
-            E0595,
-            "closure cannot assign to {}",
-            descr,
-        )
-    }
-
     fn cannot_borrow_path_as_mutable_because(
         self,
         span: Span,
@@ -469,15 +425,6 @@ pub trait BorrowckErrors<'cx>: Sized + Copy {
         )
     }
 
-    fn cannot_borrow_path_as_mutable(
-        self,
-        span: Span,
-        path: &str,
-        o: Origin,
-    ) -> DiagnosticBuilder<'cx> {
-        self.cannot_borrow_path_as_mutable_because(span, path, "", o)
-    }
-
     fn cannot_mutate_in_match_guard(
         self,
         mutate_span: Span,
@@ -569,58 +516,6 @@ pub trait BorrowckErrors<'cx>: Sized + Copy {
         err
     }
 
-    fn lifetime_too_short_for_reborrow(
-        self,
-        span: Span,
-        path: &str,
-        _: Origin,
-    ) -> DiagnosticBuilder<'cx> {
-        struct_span_err!(
-            self,
-            span,
-            E0598,
-            "lifetime of {} is too short to guarantee \
-             its contents can be safely reborrowed",
-            path,
-        )
-    }
-
-    fn cannot_act_on_capture_in_sharable_fn(
-        self,
-        span: Span,
-        bad_thing: &str,
-        help: (Span, &str),
-        _: Origin,
-    ) -> DiagnosticBuilder<'cx> {
-        let (help_span, help_msg) = help;
-        let mut err = struct_span_err!(
-            self,
-            span,
-            E0387,
-            "{} in a captured outer variable in an `Fn` closure",
-            bad_thing,
-        );
-        err.span_help(help_span, help_msg);
-        err
-    }
-
-    fn cannot_assign_into_immutable_reference(
-        self,
-        span: Span,
-        bad_thing: &str,
-        _: Origin,
-    ) -> DiagnosticBuilder<'cx> {
-        let mut err = struct_span_err!(
-            self,
-            span,
-            E0389,
-            "{} in a `&` reference",
-            bad_thing,
-        );
-        err.span_label(span, "assignment into an immutable reference");
-        err
-    }
-
     fn cannot_capture_in_long_lived_closure(
         self,
         closure_span: Span,