Cargo, the Rust package manager, is not installed or is not on PATH.

Since the last release, I am seeing errors in our build pipeline. Does the latest release not include a wheel?

ERROR: Command errored out with exit status 1:
 command: /path/to/.tox/py38/bin/python /path/to/.tox/py38/lib/python3.8/site-packages/pip/_vendor/pep517/_in_process.py prepare_metadata_for_build_wheel /tmp/tmp1l_pmzjj
     cwd: /tmp/pip-install-n7zcooxw/orjson
Complete output (6 lines):

Cargo, the Rust package manager, is not installed or is not on PATH.
This package requires Rust and Cargo to compile extensions. Install it through
the system's package manager or via https://rustup.rs/

Checking for Rust toolchain....
----------------------------------------