• Rust has packets (crates)
• Rust's backend is LLVM
• Rust strings are UTF-8 encoded and can contain any Unicode character
• Rust has hygienic macros, println! is an example of this
• Everything is constant by default, you need to add mut to make a variable
• Compile time memory safety
• Lack of undefined runtime behavior
• Static memory management at compile time:
  • No uninitialized variables.
  • No memory leaks (mostly, see notes).
  • No double-frees.
  • No use-after-free.
  • No NULL pointers.
  • No forgotten locked mutexes.
  • No data races between threads.
  • No iterator invalidation.
• No undefined behavior at runtime:
  • Array access is bounds checked.
  • Integer overflow is defined (panic or wrap-around).
• Actionable feedback on errors
• Good Language Server Protocol implementation (rust-analyzer)
• char is 32 bits wid
• possible to have underscores and types directly in constant, e.g. 1_000, 123_i64, or, less nice 1_23i32
• variable shadowing is possible (i.e. redefining in the same scope)... Strange
• array length is part of it's type: [u8; 3] and [u8; 4] are different types