error: using a non-octal value to set unix file permissions
  --> $DIR/non_octal_unix_permissions.rs:12:18
   |
LL |     options.mode(440);
   |                  ^^^ help: consider using an octal literal instead: `0o440`
   |
   = note: `-D clippy::non-octal-unix-permissions` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::non_octal_unix_permissions)]`

error: using a non-octal value to set unix file permissions
  --> $DIR/non_octal_unix_permissions.rs:17:47
   |
LL |     let _permissions = Permissions::from_mode(647);
   |                                               ^^^ help: consider using an octal literal instead: `0o647`

error: using a non-octal value to set unix file permissions
  --> $DIR/non_octal_unix_permissions.rs:26:26
   |
LL |     permissions.set_mode(644);
   |                          ^^^ help: consider using an octal literal instead: `0o644`

error: using a non-octal value to set unix file permissions
  --> $DIR/non_octal_unix_permissions.rs:31:18
   |
LL |     builder.mode(755);
   |                  ^^^ help: consider using an octal literal instead: `0o755`

error: aborting due to 4 previous errors