custom panic to preserve type checking

Cargo.lock

@@ -32,7 +32,6 @@ dependencies = [
  "arduino-hal",
  "embedded-hal 1.0.0",
  "nb 1.1.0",
- "panic-serial",
  "proc-macro2",
  "ufmt",
 ]
@@ -141,15 +140,6 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8d5439c4ad607c3c23abf66de8c8bf57ba8adcd1f129e699851a6e43935d339d"
 
-[[package]]
-name = "panic-serial"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c3afc60d58b0825ea32dd8d8a2796098f7b87ad3b9392cace3b6dc79e450afd9"
-dependencies = [
- "ufmt",
-]
-
 [[package]]
 name = "paste"
 version = "1.0.15"