[glandium]

Rust is a type of corrosion.

[adamnemecek]

Ironically though the name rust is from the species of fungi https://en.m.wikipedia.org/wiki/Rust_(fungus)

[felixangell1024]

Ah very true. I interpret it as (from Googles define) "destroy or weaken (something) gradually." i.e. destroy/weaken the C code into Rust... Maybe it's just me, though.

[dmytrish]

Exactly, _Corrode_ makes C code _rusty_!

[microcolonel]

They probably should've used a more specific term; like "Oxidant".