Cargo check fails to detect an error

[graylikeme]

When running cargo check it fails to output an error that is detected with cargo build
b_reg is u8 and running stable 1.27.1

error: attempt to shift right with overflow
  --> src\cpu\instructions.rs:39:36
   |
39 |             cpu.flags.half_carry = ((b_reg | 0x0F) - 1) >> 31 > 0;
   |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: #[deny(exceeding_bitshifts)] on by default

[alexcrichton]

Thanks for the report! I think you actually had it right the first time around with rust-lang/rust#52484 in that this is an issue with rust-lang/rust rather than Cargo (which is just delegating to rustc). Want to re-move the issue back over there?

[graylikeme]

Oh really. Then i'll do just that

[graylikeme]

Issue moved to rust-lang/rust#52484