$ cargo build
   Compiling libc v0.2.86
   Compiling getrandom v0.2.2
   Compiling cfg-if v1.0.0
   Compiling ppv-lite86 v0.2.10
   Compiling rand_core v0.6.2
   Compiling rand_chacha v0.3.0
   Compiling rand v0.8.3
   Compiling guessing_game v0.1.0 (file:///projects/guessing_game)
error[E0308]: mismatched types
  --> src/main.rs:22:21
   |
22 |     match guess.cmp(&secret_number) {
   |                     ^^^^^^^^^^^^^^ expected struct `String`, found integer
   |
   = note: expected reference `&String`
              found reference `&{integer}`

error[E0283]: type annotations needed for `{integer}`
   --> src/main.rs:8:44
    |
8   |     let secret_number = rand::thread_rng().gen_range(1..=100);
    |         -------------                      ^^^^^^^^^ cannot infer type for type `{integer}`
    |         |
    |         consider giving `secret_number` a type
    |
    = note: multiple `impl`s satisfying `{integer}: SampleUniform` found in the `rand` crate:
            - impl SampleUniform for i128;
            - impl SampleUniform for i16;
            - impl SampleUniform for i32;
            - impl SampleUniform for i64;
            and 8 more
note: required by a bound in `gen_range`
   --> /Users/carolnichols/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.8.3/src/rng.rs:129:12
    |
129 |         T: SampleUniform,
    |            ^^^^^^^^^^^^^ required by this bound in `gen_range`
help: consider specifying the type arguments in the function call
    |
8   |     let secret_number = rand::thread_rng().gen_range::<T, R>(1..=100);
    |                                                     ++++++++

Some errors have detailed explanations: E0283, E0308.
For more information about an error, try `rustc --explain E0283`.
error: could not compile `guessing_game` due to 2 previous errors