`cargo-call-stack` does not produce a binary with the current nightly toolchain. Building following the [unstable rust book](https://doc.rust-lang.org/beta/unstable-book/compiler-flags/emit-stack-sizes.html) with
```
$ RUSTFLAGS="-Z emit-stack-sizes" cargo +nightly rustc --release --example hello-stack --target thumbv8m.main-none-eabihf -- -C link-arg=-Tkeep-stack-sizes.x -C link-arg=-N
```
produces a binary. But apparently without a `.stack_sizes` section.