diff --git a/conda_forge_feedstock_check_solvable/rattler_build.py b/conda_forge_feedstock_check_solvable/rattler_build.py
index 358d535..c68a8a5 100644
--- a/conda_forge_feedstock_check_solvable/rattler_build.py
+++ b/conda_forge_feedstock_check_solvable/rattler_build.py
@@ -35,11 +35,9 @@ def invoke_rattler_build(
     # this is OK since there is an lru cache
     virtual_package_repo_url = virtual_package_repodata()
     # create a temporary file and dump the variants as YAML
-
     with tempfile.NamedTemporaryFile(mode="w", delete=False) as variants_file:
         yaml.dump(variants, variants_file)
         variants_file.flush()
-
         channels_args = []
         for c in channels:
             channels_args.extend(["-c", c])
@@ -56,6 +54,7 @@ def invoke_rattler_build(
         )
 
         status, out, err = run_rattler_build(args)
+        out = f"Command: {' '.join(args)}\nLogs:\n{out}"
 
         if status == 0:
             return True, ""
diff --git a/conda_forge_feedstock_check_solvable/virtual_packages.py b/conda_forge_feedstock_check_solvable/virtual_packages.py
index 60887a8..2171f7c 100644
--- a/conda_forge_feedstock_check_solvable/virtual_packages.py
+++ b/conda_forge_feedstock_check_solvable/virtual_packages.py
@@ -40,6 +40,8 @@ def to_repodata_entry(self):
             build = f"{self.build_number}"
         out["depends"] = list(out["depends"])
         out["build"] = build
+        # add an empty run exports for rattler-build
+        out["run_exports"] = {}
         fname = f"{self.name}-{self.version}-{build}.tar.bz2"
         return fname, out