Index: head/lang/rust-nightly/files/patch-vendor_libgit2-sys_lib.rs
===================================================================
--- head/lang/rust-nightly/files/patch-vendor_libgit2-sys_lib.rs	(revision 509174)
+++ head/lang/rust-nightly/files/patch-vendor_libgit2-sys_lib.rs	(revision 509175)
@@ -1,30 +1,30 @@
 Revert to libgit2 0.28 API per https://github.com/rust-lang/git2-rs/issues/458
 
---- vendor/libgit2-sys/lib.rs.orig	2019-08-16 20:27:18.000000000 +0000
-+++ vendor/libgit2-sys/lib.rs	2019-08-17 19:47:11.087276682 +0000
+--- vendor/libgit2-sys/lib.rs.orig	2019-08-16 20:27:18 UTC
++++ vendor/libgit2-sys/lib.rs
 @@ -331,7 +331,6 @@ pub struct git_remote_callbacks {
      pub push_negotiation: Option<git_push_negotiation>,
      pub transport: Option<git_transport_cb>,
      pub payload: *mut c_void,
 -    pub resolve_url: Option<git_url_resolve_cb>,
  }
  
  #[repr(C)]
 @@ -385,8 +384,6 @@ pub type git_push_negotiation =
  
  pub type git_push_update_reference_cb =
      extern "C" fn(*const c_char, *const c_char, *mut c_void) -> c_int;
 -pub type git_url_resolve_cb =
 -    extern "C" fn(*mut git_buf, *const c_char, c_int, *mut c_void) -> c_int;
  
  #[repr(C)]
  pub struct git_push_update {
 @@ -2233,7 +2230,7 @@ extern "C" {
          source: *const git_tree,
      ) -> c_int;
      pub fn git_treebuilder_clear(bld: *mut git_treebuilder);
 -    pub fn git_treebuilder_entrycount(bld: *mut git_treebuilder) -> size_t;
 +    pub fn git_treebuilder_entrycount(bld: *mut git_treebuilder) -> c_uint;
      pub fn git_treebuilder_free(bld: *mut git_treebuilder);
      pub fn git_treebuilder_get(
          bld: *mut git_treebuilder,