Update compiler feature list by Travis CI build 1548

Author: Travis CI

compiler_feature.txt

@@ -167,6 +167,7 @@ active          c_variadic                          1.34.0   44930    None
 active          decl_macro                          1.17.0   39412    None         2019-08-20 18:50:33 +0200
 active          default_alloc_error_handler         1.48.0   66741    None         2020-09-07 10:45:20 +0200
 active          default_type_parameter_fallback     1.3.0    27336    None         2019-08-20 18:50:33 +0200
+active          destructuring_assignment            1.49.0   71126    None         2020-11-04 16:32:52 +0000
 active          doc_cfg                             1.21.0   43781    None         2019-08-20 18:50:33 +0200
 active          doc_keyword                         1.28.0   51315    None         2019-08-20 18:50:33 +0200
 active          doc_masked                          1.21.0   44027    None         2019-08-20 18:50:33 +0200