error: method `in_terminal_noclose` is never used
  --> src/system_helpers.rs:69:6
   |
67 | trait InTerminalEmulator {
   |       ------------------ method in this trait
68 |   fn in_terminal(&self) -> Self;
69 |   fn in_terminal_noclose(&self) -> Self;
   |      ^^^^^^^^^^^^^^^^^^^

error: method `as_root` is never used
  --> src/system_helpers.rs:48:6
   |
47 | pub trait AsRoot {
   |           ------ method in this trait
48 |   fn as_root(&self) -> Self;
   |      ^^^^^^^
   |
   = note: `-D dead-code` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(dead_code)]`