Ignore Cargo.lock

.cargo/config.toml

@@ -14,4 +14,4 @@ rustflags = [
 target = "xtensa-esp32-none-elf"
 
 [unstable]
-build-std = ["alloc", "core"]
+build-std = ["core"]

.gitignore

@@ -2,6 +2,7 @@
 # will have compiled files and executables
 debug/
 target/
+Cargo.lock
 
 # These are backup files generated by rustfmt
 **/*.rs.bk

src/main.rs

@@ -1,7 +1,6 @@
 #![no_std]
 #![no_main]
 
-extern crate alloc;
 use esp_backtrace as _;
 
 use embedded_hal::serial::Read;