chore: switch to nightly toochain, strip symbols (#463)

Author: Brooooooklyn

.cargo/config.toml

@@ -5,5 +5,5 @@ linker = "aarch64-linux-gnu-gcc"
 linker = "arm-linux-gnueabihf-gcc"
 
 [target.aarch64-unknown-linux-musl]
-linker = "aarch64-linux-gnu-gcc"
-rustflags = ["-C", "target-feature=-crt-static", "-C", "link-arg=-lgcc"]
+linker = "aarch64-linux-musl-gcc"
+rustflags = ["-C", "target-feature=-crt-static"]