diff --git a/lib/compiler/resinator/cli.zig b/lib/compiler/resinator/cli.zig
index deee1ed54a..32b4389997 100644
--- a/lib/compiler/resinator/cli.zig
+++ b/lib/compiler/resinator/cli.zig
@@ -108,8 +108,8 @@ pub const Diagnostics = struct {
     }
 
     pub fn renderToStdErr(self: *Diagnostics, args: []const []const u8, config: std.io.tty.Config) void {
-        std.debug.getStderrMutex().lock();
-        defer std.debug.getStderrMutex().unlock();
+        std.debug.lockStdErr();
+        defer std.debug.unlockStdErr();
         const stderr = std.io.getStdErr().writer();
         self.renderToWriter(args, stderr, config) catch return;
     }
diff --git a/lib/compiler/resinator/errors.zig b/lib/compiler/resinator/errors.zig
index 909824c594..5cfa766ac1 100644
--- a/lib/compiler/resinator/errors.zig
+++ b/lib/compiler/resinator/errors.zig
@@ -60,8 +60,8 @@ pub const Diagnostics = struct {
     }
 
     pub fn renderToStdErr(self: *Diagnostics, cwd: std.fs.Dir, source: []const u8, tty_config: std.io.tty.Config, source_mappings: ?SourceMappings) void {
-        std.debug.getStderrMutex().lock();
-        defer std.debug.getStderrMutex().unlock();
+        std.debug.lockStdErr();
+        defer std.debug.unlockStdErr();
         const stderr = std.io.getStdErr().writer();
         for (self.errors.items) |err_details| {
             renderErrorMessage(self.allocator, stderr, tty_config, cwd, err_details, source, self.strings.items, source_mappings) catch return;
diff --git a/lib/compiler/resinator/main.zig b/lib/compiler/resinator/main.zig
index 3dd5985758..e056e80252 100644
--- a/lib/compiler/resinator/main.zig
+++ b/lib/compiler/resinator/main.zig
@@ -50,12 +50,6 @@ pub fn main() !void {
         },
     };
 
-    if (zig_integration) {
-        // Send progress with a special string to indicate that the building of the
-        // resinator binary is finished and we've moved on to actually compiling the .rc file
-        try error_handler.server.serveStringMessage(.progress, "<resinator>");
-    }
-
     var options = options: {
         var cli_diagnostics = cli.Diagnostics.init(allocator);
         defer cli_diagnostics.deinit();