There are certain styles of programming and data structure implementations that end up requiring you to fight Rust at almost every step. Things like intrusive data structures, pointer manipulation and so on. Famously there is an entire book online on how to write a performant linked list in idiomatic Rust - something that is considered straightforward in C.
For these cases you could always use Zig instead of C
For these cases you could always use Zig instead of C