testing: disable substitution in f2

mirrors f1. much faster. Change-Id: I38bbbd5b26220f480afe76ef9302e5c90f21507a
2025-09-28 13:19:13 +00:00
parent 992c3ae981
commit e4ee5e2eb5
1 changed files with 3 additions and 0 deletions
@@ -46,6 +46,9 @@ class NixSettings:
        config = dedent(f"""
            show-trace = true
            sandbox = true
+            # explicitly disable substitution by default, otherwise we may attempt to contact
+            # substituters and slow down many tests with pointless connection retry timeouts.
+            substituters =
            extra-sandbox-paths = {" ".join(env.path.to_sandbox_paths())}
        """)
        # Note: newline at the end is required due to nix being nix;