[samuelec]

What about lifetimes?

[hermanradtke]

A Rust 101 intro does not need to concern itself with lifetimes.

[pornel]

Indeed, overuse of lifetimes is a common novice mistake. In most real-world programs lifetime annotations are very rarely needed.

The worst disaster of nonsensical <'a> exploding everywhere comes from novices trying to use Rust's references to store objects "by reference" in a struct, without understanding that in Rust references have a completely opposite meaning that forbids storing the data.