Comment alignment breaks when exceeding the max_width

I've got the following piece of code, formatted by rustfmt:

pub struct InterruptsQueue {
    pub vfio_event_fd: RawFd,           // event fd
    pub vfio_epoll_fd: RawFd,           // epoll fd
    pub interrupt_enabled: bool,        // Whether interrupt for this queue is enabled or not
    pub instr_counter: u64, // Instruction counter to avoid unnecessary calls to elapsed time
    pub last_time_checked: Instant, // Last time the interrupt flag was checked
    pub rx_pkts: u64,       // The number of received packets since the last check
    pub interval: u64,      // The interval to check the interrupt flag
    pub moving_avg: InterruptMovingAvg, // The moving average of the hybrid interrupt
}

In my opinion it would be great to get the following formatting:

pub struct InterruptsQueue {
    pub vfio_event_fd: RawFd,           // event fd
    pub vfio_epoll_fd: RawFd,           // epoll fd
    pub interrupt_enabled: bool,        // Whether interrupt for this queue is enabled or not
    pub instr_counter: u64,             // Instruction counter to avoid unnecessary calls to elapsed time
    pub last_time_checked: Instant,     // Last time the interrupt flag was checked
    pub rx_pkts: u64,                   // The number of received packets since the last check
    pub interval: u64,                  // The interval to check the interrupt flag
    pub moving_avg: InterruptMovingAvg, // The moving average of the hybrid interrupt
}

Another option would be to not indent the comments at all. Is this fixable? I'm using version 1.4.4 of rustfmt.

Start by reproducing the reported struct formatting with rustfmt 1.4.4 and compare the current output with the requested alignment. Trace the comment-formatting entry point and any relevant formatter tests; done means comments remain aligned when the declaration exceeds max_width, or the documented alternative behavior is implemented.