Why is a Rust executable large? (2016)(lifthrasiir.github.io)

  $ cargo --version && cargo init hello && cd hello && cat ./src/main.rs && cargo build --release && du -h ./target/release/hello
  cargo 1.34.0 (6789d8a0a 2019-04-01)
       Created binary (application) package
  fn main() {
      println!("Hello, world!");
  }
     Compiling hello v0.1.0 (/tmp/foo/hello)
      Finished release [optimized] target(s) in 0.31s
  1,6M ./target/release/hello

  $ strip target/release/hello && du -h ./target/release/hello
  192K ./target/release/hello

    echo $(gcc --version) && cat test.c && gcc -static -O2 test.c && echo && du -h a.out
    gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516 ...
    #include <stdio.h>

    int main(void) {
        printf("Hello World\n");
    }

    796K a.out

    #![feature(alloc_system)]
    extern crate alloc_system;