@@ -350,6 +350,7 @@ const sizeError = (a, b) =>
 async function untilSaved(watcher, owed) {
   for (const deadline = Date.now() + 10_000; Date.now() < deadline; await sleep(50))
     if (watcher.versions.length - 1 >= owed) return;
+  throw new Error(`save ${owed} never landed`);
 }
 
 const boxError = (state, m) =>
Original file line number	Diff line number	Diff line change
`@@ -350,6 +350,7 @@ const sizeError = (a, b) =>`
`350`	`350`	`async function untilSaved(watcher, owed) {`
`351`	`351`	`for (const deadline = Date.now() + 10_000; Date.now() < deadline; await sleep(50))`
`352`	`352`	`if (watcher.versions.length - 1 >= owed) return;`
	`353`	+ throw new Error(`save ${owed} never landed`);
`353`	`354`	`}`
`354`	`355`
`355`	`356`	`const boxError = (state, m) =>`