[gnome-builder/wip/gtk4-port: 495/736] plugins/rust-analyzer: fix callback signature

[Christian Hergert <chergert src gnome org>]

commit 4d39c8cefea281c00735d5a855ff1394d3fec75c
Author: Christian Hergert <chergert redhat com>
Date:   Thu Apr 7 10:58:11 2022 -0700

    plugins/rust-analyzer: fix callback signature

 src/plugins/rust-analyzer/rust-analyzer-pipeline-addin.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
---
diff --git a/src/plugins/rust-analyzer/rust-analyzer-pipeline-addin.c 
b/src/plugins/rust-analyzer/rust-analyzer-pipeline-addin.c
index 099c5a46e..f7f18c390 100644
--- a/src/plugins/rust-analyzer/rust-analyzer-pipeline-addin.c
+++ b/src/plugins/rust-analyzer/rust-analyzer-pipeline-addin.c
@@ -98,10 +98,9 @@ find_cargo_toml_from_file (GFile *file)
 }
 
 static void
-rust_analyzer_pipeline_addin_discover_workdir_cb (GtkWidget *widget,
-                                                  gpointer   user_data)
+rust_analyzer_pipeline_addin_discover_workdir_cb (IdePage  *page,
+                                                  gpointer  user_data)
 {
-  IdePage *page = (IdePage *)widget;
   GFile **workdir = user_data;
   g_autoptr(GFile) file = NULL;
   g_autoptr(GFile) cargo_toml = NULL;