warning: constant `SERVICE_NAME` is never used
 --> zerostash/src/config/symmetric_key.rs:6:7
  |
6 | const SERVICE_NAME: &str = "dev.symmetree.zerostash";
  |       ^^^^^^^^^^^^
  |
  = note: `#[warn(dead_code)]` on by default

warning: unused variable: `stash`
  --> zerostash/src/config/symmetric_key.rs:77:42
   |
77 |     pub fn interactive_credentials(self, stash: &str) -> Result<(SecretString, SecretString)> {
   |                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_stash`

warning: unused variable: `stash`
  --> zerostash/src/config/symmetric_key.rs:49:34
   |
49 |     pub fn fill_random(mut self, stash: &str) -> Result<Self> {
   |                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_stash`
   |
   = note: `#[warn(unused_variables)]` on by default

warning: this let-binding has unit value
   --> zerostash-files/src/tree.rs:375:13
    |
375 | /             _ = entries.upsert(
376 | |                 name.into(),
377 | |                 move || noderef,
378 | |                 |_, v| {
...   |
381 | |                 },
382 | |             );
    | |_____________^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_unit_value
    = note: `#[warn(clippy::let_unit_value)]` on by default
help: omit the `let` binding
    |
375 ~             entries.upsert(
376 +                 name.into(),
377 +                 move || noderef,
378 +                 |_, v| {
379 +                     noderef = *v;
380 +                     update = true;
381 +                 },
382 ~             );;
    |