Can't use lto due to a bug

alvinhochun · alvinhochun · commit bfed6d666994 · 2020-06-17T17:17:27.000+08:00
rust-lang/rust#72758
diff --git a/Cargo.toml b/Cargo.toml
@@ -6,6 +6,5 @@ members = [
 ]
 
 [profile.release]
-lto = "fat"
 codegen-units = 1
 opt-level = 's'
