Table broken in description of target `aarch64-unknown-teeos`

[Kriskras99]

Location

The rustc book > 6. Platform support > 6.16. aarch64-unknown-teeos

https://doc.rust-lang.org/nightly/rustc/platform-support/aarch64-unknown-teeos.html
https://github.com/rust-lang/rust/blob/master/src/doc/rustc/src/platform-support/aarch64-unknown-teeos.md

Summary

The table containing abbreviations is not rendered, making it unreadable.
It renders correctly on GitHub, which according to the mdBook documentation uses the same syntax (https://rust-lang.github.io/mdBook/format/markdown.html#tables)