Struct ExceptionInfo 

#[repr(C)]
pub struct ExceptionInfo {
    pub error_code: u64,
    pub rip: u64,
    pub cs: u64,
    pub rflags: u64,
    pub rsp: u64,
    pub ss: u64,
}

See AMD64 Architecture Programmer’s Manual, Volume 2 §8.9.3 Interrupt Stack Frame, pp. 283–284 Figure 8-14: Long-Mode Stack After Interrupt—Same Privilege, Figure 8-15: Long-Mode Stack After Interrupt—Higher Privilege Subject to the proviso that we push a dummy error code of 0 for exceptions for which the processor does not provide one

Fields

error_code: u64

rip: u64

cs: u64

rflags: u64

rsp: u64

ss: u64