Change from serde::export to std::marker

[jamescorbett]

For some reason under a docker build I get a build error under docker only saying that serde::export is private. This fixes it for me.

error[E0603]: module `export` is private
   --> /usr/local/cargo/registry/src/esyshub.st101.workers.dev-1ecc6299db9ec823/tantivy-0.13.2/src/collector/top_collector.rs:5:12
    |
5   | use serde::export::PhantomData;
    |            ^^^^^^ private module
    |
note: the module `export` is defined here
   --> /usr/local/cargo/registry/src/esyshub.st101.workers.dev-1ecc6299db9ec823/serde-1.0.119/src/lib.rs:275:5
    |
275 | use self::__private as export;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^

[fulmicoton]

thx

[appaquet]

Can a 0.13.3 be released with this fix since it is broken following a patch update on Serde... Unless 0.14 isn't far away ? Thx !

[fulmicoton]

@appaquet Ok I'll do that today. I don't want to rush on releasing 0.14 as a bug was discovered on the main branch recently, so it will be a 0.13.3

[fulmicoton]

@appaquet @jamescorbett Published 0.13.3.