chore: re-enable clippy::module_inception

This patch re-enables `clippy::module_inception`, and addresses
the related issues. This required renaming two modules to use
an underscore, which is probably not the best solution, but makes
minimal changes.

src/main.rs

@@ -1,8 +1,4 @@
-#![allow(
-    clippy::module_inception,
-    clippy::result_large_err,
-    clippy::type_complexity
-)]
+#![allow(clippy::result_large_err, clippy::type_complexity)]
 mod kvstore;
 mod package_db;
 mod prelude;

src/package_db/http/lazy_remote_file.rs

@@ -1,6 +1,6 @@
 use crate::prelude::*;
 
-use super::http::{CacheMode, HttpInner};
+use super::_http::{CacheMode, HttpInner};
 use std::cmp;
 use std::collections::BTreeMap;
 use std::io::{self, Read, Seek, SeekFrom};

src/package_db/http/mod.rs

@@ -1,7 +1,7 @@
-mod http;
+mod _http;
 pub mod lazy_remote_file;
 pub mod ureq_glue;
 pub mod user_agent;
 
-pub use self::http::{CacheMode, Http, HttpInner, NotCached};
+pub use self::_http::{CacheMode, Http, HttpInner, NotCached};
 pub use self::lazy_remote_file::LazyRemoteFile;

src/package_db/mod.rs

@@ -1,8 +1,8 @@
+mod _package_db;
 mod build_wheel;
 mod http;
-mod package_db;
 mod simple_api;
 
+pub use _package_db::PackageDB;
 pub use build_wheel::WheelBuilder;
-pub use package_db::PackageDB;
 pub use simple_api::ArtifactInfo;