update dependencies and use stable toolchain

README.md

@@ -28,13 +28,13 @@ To run Watchful:
 # Installing the softdevice
 probe-rs download path-to-softdevice.hex --format Hex --chip nRF52832_xxAA
 
-cd firmware
-
 # Flashing the bootloader
-cargo flash --manifest-path boot/Cargo.toml --release
+cd firmware/boot
+cargo flash --release
 
 # Flashing the OS
-cargo flash --manifest-path app/Cargo.toml --release
+cd ../app
+cargo flash --release
 ```
 
 ## Updating firmware

firmware/.cargo/config.toml

@@ -7,9 +7,6 @@ build-std-features = ["panic_immediate_abort"]
 #runner = "probe-rs-cli run --no-location --chip nRF52832_xxAA"
 runner = "probe-run --chip nRF52832_xxAA"
 rustflags = [
-#  "-Z", "features=host_dep",
-  # Code-size optimizations.
-  "-Z", "trap-unreachable=no",
   "-C", "inline-threshold=5", # try different values here
   "-C", "no-vectorize-loops", # try with and without this
 ]