docs and tests work

veilid-cli/src/main.rs

@@ -169,6 +169,8 @@ fn main() -> Result<(), String> {
             } else if #[cfg(feature="rt-tokio")] {
                 // Wait for ui and connection to complete
                 let _ = tokio::join!(ui_future, connection_future);
+            } else {
+                compile_error!("needs executor implementation")
             }
         }
     });

veilid-cli/src/tools.rs

@@ -19,7 +19,8 @@ cfg_if! {
             let local = tokio::task::LocalSet::new();
             local.block_on(&rt, f)
         }
-
+    } else {
+        compile_error!("needs executor implementation")
     }
 }