error: current MSRV (Minimum Supported Rust Version) is `1.3.0` but this item is stable since `1.10.0`
  --> tests/ui/incompatible_msrv.rs:13:39
   |
LL |     assert_eq!(map.entry("poneyland").key(), &"poneyland");
   |                                       ^^^^^
   |
   = note: `-D clippy::incompatible-msrv` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::incompatible_msrv)]`

error: current MSRV (Minimum Supported Rust Version) is `1.3.0` but this item is stable since `1.12.0`
  --> tests/ui/incompatible_msrv.rs:16:11
   |
LL |         v.into_key();
   |           ^^^^^^^^^^

error: current MSRV (Minimum Supported Rust Version) is `1.3.0` but this item is stable since `1.4.0`
  --> tests/ui/incompatible_msrv.rs:20:5
   |
LL |     sleep(Duration::new(1, 0));
   |     ^^^^^

error: aborting due to 3 previous errors