www/firefox-esr: unbreak with rust 1.37

error: trait objects without an explicit `dyn` are deprecated
   --> gfx/webrender_bindings/src/bindings.rs:471:28
    |
471 |     fn clone(&self) -> Box<RenderNotifier> {
    |                            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn RenderNotifier`
    |
note: lint level defined here
   --> gfx/webrender_bindings/src/lib.rs:5:9
    |
5   | #![deny(warnings)]
    |         ^^^^^^^^
    = note: #[deny(bare_trait_objects)] implied by #[deny(warnings)]

error: trait objects without an explicit `dyn` are deprecated
   --> gfx/webrender_bindings/src/bindings.rs:736:30
    |
736 |     let recorder: Option<Box<ApiRecordingReceiver>> = if unsafe { gfx_use_wrench() } {
    |                              ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn ApiRecordingReceiver`

error: trait objects without an explicit `dyn` are deprecated
  --> gfx/webrender_bindings/src/moz2d_renderer.rs:98:28
   |
98 |                resources: &BlobImageResources,
   |                            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn BlobImageResources`

error: trait objects without an explicit `dyn` are deprecated
   --> gfx/webrender_bindings/src/moz2d_renderer.rs:136:65
    |
136 |         fn process_fonts(mut extra_data: BufReader, resources: &BlobImageResources) {
    |                                                                 ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn BlobImageResources`

error: aborting due to 4 previous errors
error: Could not compile `webrender_bindings`.

Reported by:	tobik
Obtained from:	upstream (Firefox 68)

0 files changed, 0 insertions, 0 deletions