error: file is loaded as a module multiple times: `$DIR/b.rs`
  --> $DIR/main.rs:5:1
   |
LL |   mod b;
   |   ^^^^^^ first loaded here
LL | / #[path = "b.rs"]
LL | | mod b2;
   | |_______^ loaded again here
   |
   = help: replace all but one `mod` item with `use` items
   = note: `-D clippy::duplicate-mod` implied by `-D warnings`

error: file is loaded as a module multiple times: `$DIR/c.rs`
  --> $DIR/main.rs:9:1
   |
LL |   mod c;
   |   ^^^^^^ first loaded here
LL | / #[path = "c.rs"]
LL | | mod c2;
   | |_______^ loaded again here
LL | / #[path = "c.rs"]
LL | | mod c3;
   | |_______^ loaded again here
   |
   = help: replace all but one `mod` item with `use` items

error: file is loaded as a module multiple times: `$DIR/d.rs`
  --> $DIR/main.rs:18:1
   |
LL |   mod d;
   |   ^^^^^^ first loaded here
LL | / #[path = "d.rs"]
LL | | mod d2;
   | |_______^ loaded again here
   |
   = help: replace all but one `mod` item with `use` items

error: file is loaded as a module multiple times: `$DIR/from_other_module.rs`
  --> $DIR/main.rs:15:1
   |
LL |   mod from_other_module;
   |   ^^^^^^^^^^^^^^^^^^^^^^ first loaded here
   |
  ::: $DIR/other_module/mod.rs:1:1
   |
LL | / #[path = "../from_other_module.rs"]
LL | | mod m;
   | |______^ loaded again here
   |
   = help: replace all but one `mod` item with `use` items

error: aborting due to 4 previous errors