use defmt in panic-log

common/panic-log/Cargo.toml

@@ -7,4 +7,20 @@ version = "0.0.0"
 
 [dependencies]
 cortex-m = "0.6.4"
-log = "0.4.8"
+defmt = "0.2.1"
+
+
+[features]
+# defmt logging levels
+default = [
+  "defmt-debug",
+  # "dependency-a/defmt-trace",
+]
+
+# do NOT modify these features
+defmt-default = []
+defmt-trace = []
+defmt-debug = []
+defmt-info = []
+defmt-warn = []
+defmt-error = []

common/panic-log/src/lib.rs

@@ -6,7 +6,7 @@ use cortex_m::asm;
 
 #[panic_handler]
 fn panic(info: &PanicInfo) -> ! {
-    log::error!("{}", info);
+    defmt::error!("{}", defmt::Debug2Format(&info));
 
     // abort instruction: triggers a HardFault exception which causes probe-run to exit
     asm::udf()