310             let func = struct_trait.serialize_field(Span::call_site());  in serialize_struct_tag_field()
601                 try!(_serde::ser::SerializeStruct::serialize_field(  in serialize_internally_tagged_variant()
658                     try!(_serde::ser::SerializeStruct::serialize_field(  in serialize_adjacently_tagged_variant()
671                 let func = quote_spanned!(span=> _serde::ser::SerializeStruct::serialize_field);  in serialize_adjacently_tagged_variant()
675                     try!(_serde::ser::SerializeStruct::serialize_field(  in serialize_adjacently_tagged_variant()
739         try!(_serde::ser::SerializeStruct::serialize_field(  in serialize_adjacently_tagged_variant()
741         try!(_serde::ser::SerializeStruct::serialize_field(  in serialize_adjacently_tagged_variant()
930                 try!(_serde::ser::SerializeStruct::serialize_field(  in serialize_struct_variant()
1123                 let func = struct_trait.serialize_field(span);  in serialize_struct_visitor()
1291     fn serialize_field(&self, span: Span) -> TokenStream {  in serialize_field()  method
1297                 quote_spanned!(span=> _serde::ser::SerializeStruct::serialize_field)  in serialize_field()
1300                 quote_spanned!(span=> _serde::ser::SerializeStructVariant::serialize_field)  in serialize_field()
1331                 quote_spanned!(span=> _serde::ser::SerializeTupleStruct::serialize_field)  in serialize_element()
1334                 quote_spanned!(span=> _serde::ser::SerializeTupleVariant::serialize_field)  in serialize_element()