Vendor things

third-party/vendor/eyre/examples/eyre-usage.rs

@@ -0,0 +1,7 @@
+use eyre::{eyre, Report, WrapErr};
+
+fn main() -> Result<(), Report> {
+    let e: Report = eyre!("oh no this program is just bad!");
+
+    Err(e).wrap_err("usage example successfully experienced a failure")
+}