Solang panic at bitvec package

[lum7na]

Compile: solang compile a.sol --target solana

contract Test {
  function h(int256 a, int256 b) private returns(int256) {
    return (a + (b / 2)) / b;
  }

  function g(int256 a, int256 b, int256 c) private returns(int) {
    return 1;
  }

  function f(int256 a, int256 b, int256 c) private returns(int256) {
    return (a << 12) | (b << 7) | c;
  }

  int256 constant A = type(int256).max;

  int256 constant B = 1000;

  function test(int256 a, int256 b) public returns(bool) {
    int256 c = g(h(b, B), b, a) & A;
    int256 d = b & A;
    if (A > 0) {
      assert(((c / d) + (c & a) * d) == ((8 / 2) + (4 & 3) * 1));
      c = 1;
      if ((c & int256(1 << (uint256(A) - 1))) != 0) {
        c |= int256(~((1 << uint256(A)) - 1));
      }
    }
    return (f(B, B, a) > B) || (d > B);
  }
}

Output:

thread 'main' panicked at ~/.cargo/registry/src/index.crates.io-6f17d22bba15001f/bitvec-1.0.1/src/slice/api.rs:2681:1:
range 510..256 out of bounds: 256
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

Solang version: solang version v0.3.3-56-g08dbe495