if the record_results endpoint fails, don't fail the job

Summary:
A request to record_results failed, which caused a folly gcc 8 build
regression to slip in, which broke the Watchman and EdenFS builds.

Instead, turn record_results requests into a logged warning.

Reviewed By: xavierd

Differential Revision: D38170729

fbshipit-source-id: d59ae5fa48b5cbcf649281108d958ff95e319e35

Author: chadaustin

build/fbcode_builder/getdeps/builder.py

@@ -850,7 +850,8 @@ def list_tests():
                     testpilot_args.append("--env")
                     testpilot_args.extend(f"{key}={val}" for key, val in env.items())
 
-                testpilot_args += ["--run-id", str(run_id)]
+                if run_id is not None:
+                    testpilot_args += ["--run-id", run_id]
 
                 if test_filter:
                     testpilot_args += ["--", test_filter]