error: this will panic at run-time if the environment variable doesn't exist
  --> $DIR/option_env_unwrap.rs:10:13
   |
LL |     let _ = option_env!("HOME").unwrap();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: `-D clippy::option-env-unwrap` implied by `-D warnings`
   = help: consider using the `env!` macro instead

error: this will panic at run-time if the environment variable doesn't exist
  --> $DIR/option_env_unwrap.rs:5:9
   |
LL |         option_env!($env).unwrap()
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
...
LL |     let _ = option_env_unwrap!("HOME");
   |             -------------------------- in this macro invocation
   |
   = help: consider using the `env!` macro instead
   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)

error: aborting due to 2 previous errors