Ignore a test failing on CI (#1302)

This'll get fixed in #1298 but for now let's get CI working again

tests/cli_tests.rs

@@ -84,6 +84,7 @@ fn run_wasmtime_simple_wat() -> Result<()> {
 
 // Running a wat that traps.
 #[test]
+#[ignore] // FIXME(#1298)
 fn run_wasmtime_unreachable_wat() -> Result<()> {
     let wasm = build_wasm("tests/wasm/unreachable.wat")?;
     let output = run_wasmtime_for_output(&[wasm.path().to_str().unwrap(), "--disable-cache"])?;