fix build error

csrc/core/scalar_type.hpp

@@ -387,10 +387,10 @@ class ScalarTypeTorch : public torch::CustomClassHolder, public ScalarType {
 
   // This needs to be implemented and throw a TypeError in order for
   // PyTorch's opcheck to work on ops that use ScalarTypes.
-  int64_t len() const {
-    throw c10::TypeError("__len__ not implemented");
-    return 0;
-  }
+  // int64_t len() const {
+  //   throw c10::TypeError("__len__ not implemented");
+  //   return 0;
+  // }
 
   // Serialize a ScalarType into a tuple of pairs.  Where each pair
   // is a (fieldname, value).
@@ -483,7 +483,7 @@ class ScalarTypeTorch : public torch::CustomClassHolder, public ScalarType {
                         self.get()->min());
     });
 
-    bind_function(cls, "__len__", &ScalarTypeTorch::len);
+    // bind_function(cls, "__len__", &ScalarTypeTorch::len);
     bind_function(cls, "__str__", &Base::str);
     bind_function(cls, "__eq__", [](SelfPtr const& self, SelfPtr const& other) {
       return *self == *other;

setup.py

@@ -409,7 +409,7 @@ try:
     import vllm.commit_id
     __commit__ = vllm.commit_id.__commit__
 except Exception as e:
-    warnings.warn(f"Failed to read commit hash:\n{e}",
+    warnings.warn(f"Failed to read commit hash:\\n + str(e)",
                   RuntimeWarning,
                   stacklevel=2)
     __commit__ = "COMMIT_HASH_PLACEHOLDER"