chore: checkpoint before Python removal

vendor/displaydoc/tests/std/multiple.rs

@@ -0,0 +1,38 @@
+#![feature(lang_items, start)]
+#![no_std]
+
+#[start]
+#[cfg(not(feature = "std"))]
+fn start(_argc: isize, _argv: *const *const u8) -> isize {
+    0
+}
+
+#[lang = "eh_personality"]
+#[no_mangle]
+#[cfg(not(feature = "std"))]
+pub extern "C" fn rust_eh_personality() {}
+
+#[panic_handler]
+#[cfg(not(feature = "std"))]
+fn panic(_info: &core::panic::PanicInfo) -> ! {
+    unsafe {
+        libc::abort();
+    }
+}
+
+#[cfg(feature = "std")]
+fn main() {}
+
+use displaydoc::Display;
+
+/// this type is pretty swell
+#[derive(Display)]
+struct FakeType;
+
+static_assertions::assert_impl_all!(FakeType: core::fmt::Display);
+
+/// this type is pretty swell2
+#[derive(Display)]
+struct FakeType2;
+
+static_assertions::assert_impl_all!(FakeType2: core::fmt::Display);