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+`align` representation hint was incorrectly declared.
+
+Erroneous code examples:
+
+```compile_fail,E0693
+#[repr(align=8)] // error!
+struct Align8(i8);
+
+#[repr(align="8")] // error!
+struct Align8(i8);
+```
+
+This is a syntax error at the level of attribute declarations. The proper
+syntax for `align` representation hint is the following:
+
+```
+#[repr(align(8))] // ok!
+struct Align8(i8);
+```