fix: enforce condition element presence in Functions deserialization

feat: add binary target for rustfs

iam/src/policy/function.rs

@@ -131,9 +131,9 @@ impl<'de> Deserialize<'de> for Functions {
                     }
                 }
 
-                // if inner_data.is_empty() {
+                if inner_data.is_empty() {
-                //     return Err(Error::custom("has no condition element"));
+                    return Err(Error::custom("has no condition element"));
-                // }
+                }
 
                 Ok(inner_data)
             }

rustfs/Cargo.toml

@@ -7,6 +7,9 @@ repository.workspace = true
 rust-version.workspace = true
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+[[bin]]
+name = "rustfs"
+path = "src/main.rs"
 
 [lints]
 workspace = true