hidapi error: Permission denied

[John-Toohey]

When I run the following command:

$ cargo embed --features v1 --target thumbv6m-none-eabi

I get:

       Error Probe could not be created

             Caused by:
                 0: hidapi error: Permission denied
                 1: hidapi error: Permission denied

Despite having:

$ cat /etc/udev/rules.d/99-microbit.rules

# CMSIS-DAP for microbit
SUBSYSTEM=="usb", ATTR{idVendor}=="0d28", ATTR{idProduct}=="0204", MODE:="666"

I have rebooted several times and even checked the file permission on my device (/dev/bus/usb/001/010):

$ ls /dev/bus/usb/001/010
crw-rw-rw- 189,9 root  4 Dec 07:17 /dev/bus/usb/001/010

My kernel is 6.0.10 and I run archlinux. Any help would be much apreciated.