Build Issue: half@2.5.0 and bytemuck_derive@1.9.2 both require rustc 1.8+

[zfedoran]

I am not able to run cargo test-sbf or build-sbf under the dependencies pulled in for fixed.

> cargo build-sbf --version
solana-cargo-build-sbf 2.1.16
platform-tools v1.43
rustc 1.79.0

> cargo build-sbf

error: rustc 1.79.0-dev is not supported by the following packages:

Note that this is the rustc version that ships with Solana tools and not your system's rustc version. Use `solana-install update` or head over to https://docs.solanalabs.com/cli/install to install a newer version.

  bytemuck_derive@1.9.2 requires rustc 1.84
  half@2.5.0 requires rustc 1.81

Either upgrade rustc or select compatible dependency versions with
`cargo update <name>@<current-ver> --precise <compatible-ver>`
where `<compatible-ver>` is the latest version supporting rustc 1.79.0-dev

I'm trying to update to the 4.0.1 release (not in crates yet), but regardless, same result with 4.0.0.

> cargo tree
├── steel v4.0.1 (https://github.com/regolith-labs/steel?rev=3f6b36b#3f6b36b2)
│   ├── bytemuck v1.22.0 (*)
│   ├── fixed v1.28.0
│   │   ├── az v1.2.1
│   │   ├── bytemuck v1.22.0 (*)
│   │   ├── half v2.5.0         <<<--- still using 2.5.0
│   │   │   └── cfg-if v1.0.0
│   │   └── typenum v1.18.0

@HardhatChad I noticed you've pushed a fix, are you able to build with this on your machine?

[zfedoran]

Similar issue(s) on the anchor side:
solana-foundation/anchor#3606

[zfedoran]

Workaround is to add these to the ./program/Cargo.toml dependencies.

[dependencies]
bytemuck_derive=">=1.8.1, <1.9.0"
half = "=2.4.1"