error[E0433]: failed to resolve: `clippy` is a tool module, not a module
  --> $DIR/tool-import.rs:3:5
   |
LL | use clippy::time::Instant;
   |     ^^^^^^ `clippy` is a tool module, not a module

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0433`.