#![crate_type = "bin"] #![feature(start)] #![no_std] extern crate alloc; extern crate a; extern crate b; use alloc::vec::Vec; use core::alloc::*; struct Allocator; unsafe impl GlobalAlloc for Allocator { unsafe fn alloc(&self, _: Layout) -> *mut u8 { loop {} } unsafe fn dealloc(&self, _: *mut u8, _: Layout) { loop {} } } #[global_allocator] static ALLOCATOR: Allocator = Allocator; #[start] fn main(argc: isize, _argv: *const *const u8) -> isize { let mut v = Vec::new(); for i in 0..argc { v.push(i); } v.iter().sum() }