Don't try and use audio.

Pollutes the QEMU output in CI because there's no audio device available.

Author: jonathanpallant

.cargo/config.toml

@@ -1,20 +1,20 @@
 [target.armv8r-none-eabihf]
 # Note, this requires QEMU 9 or higher
-runner = "qemu-system-arm -machine mps3-an536 -cpu cortex-r52 -semihosting -nographic -kernel"
+runner = "qemu-system-arm -machine mps3-an536 -cpu cortex-r52 -semihosting -nographic -audio none -kernel"
 
 [target.armv7r-none-eabihf]
-runner = "qemu-system-arm -machine versatileab -cpu cortex-r5f -semihosting -nographic -kernel"
+runner = "qemu-system-arm -machine versatileab -cpu cortex-r5f -semihosting -nographic -audio none -kernel"
 
 [target.armv7r-none-eabi]
 # change '-mcpu=cortex-r5' to '-mcpu=cortex-r5f' if you use eabi-fpu feature, otherwise
 # qemu-system-arm will lock up
-runner = "qemu-system-arm -machine versatileab -cpu cortex-r5 -semihosting -nographic -kernel"
+runner = "qemu-system-arm -machine versatileab -cpu cortex-r5 -semihosting -nographic -audio none -kernel"
 
 [target.armv7a-none-eabihf]
-runner = "qemu-system-arm -machine versatileab -cpu cortex-a8 -semihosting -nographic -kernel"
+runner = "qemu-system-arm -machine versatileab -cpu cortex-a8 -semihosting -nographic -audio none -kernel"
 
 [target.armv7a-none-eabi]
-runner = "qemu-system-arm -machine versatileab -cpu cortex-a8 -semihosting -nographic -kernel"
+runner = "qemu-system-arm -machine versatileab -cpu cortex-a8 -semihosting -nographic -audio none -kernel"
 
 [unstable]
 build-std = ["core", "alloc"]