Why is not —release being passed to cargo? It’s not like the File Pilo mentioned by GP is released with debug symbols.
The original post/blog said a debug hello world was 3.7MB. I confirmed the post.
A release build is:
426K Feb 21 15:28 target/release/helloworld
If you use lto, codegen-units = 1 and strip then you get:
323K Feb 21 15:30 target/release/helloworld