When probing without the `--chip xxx --connect-under-reset`, I get the following which isn't much more useful:
```
Probing target via JTAG

 WARN probe_rs::probe::stlink: send_jtag_command 242 failed: JtagUnknownJtagChain
Error identifying target using protocol JTAG: An error with the usage of the probe occurred

Probing target via SWD

 WARN probe_rs::probe::stlink: send_jtag_command 242 failed: SwdApFault
Error showing ARM chip information for Debug Port Default: An ARM specific error occurred.

Caused by:
    0: The debug probe encountered an error.
    1: An error which is specific to the debug probe in use occurred.
    2: Command failed with status SwdApFault

Trying alternate multi-drop debug ports
thread 'main' panicked at probe-rs/src/probe/stlink/mod.rs:1360:9:
assertion `left == right` failed: Multidrop not supported on ST-Link
  left: Multidrop(16787751)
 right: Default
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
 ```