   Compiling api_tester v0.1.0 (/home/dev/proj/playground/learning_axum/api_tester)
error: character constant must be escaped: `'`
 --> src/template.rs:1:2
  |
1 | '''const TEMPLATE_TOML: &str = r#"
  |  ^
  |
help: escape the character
  |
1 | '\''const TEMPLATE_TOML: &str = r#"
  |  +

error: empty character literal
  --> src/template.rs:86:2
   |
86 | ''
   |  ^ empty character literal

error: expected item, found `'''const`
 --> src/template.rs:1:1
  |
1 | '''const TEMPLATE_TOML: &str = r#"
  | ^^^^^^^^ expected item
  |
  = note: for a full list of items that can appear in modules, see <https://doc.rust-lang.org/reference/items.html>

warning: value assigned to `headers` is never read
   --> src/lib.rs:217:17
    |
217 |         let mut headers: Option<HashMap<String, String>> = None; // Defaults to None
    |                 ^^^^^^^
    |
    = help: maybe it is overwritten before being read?
    = note: `#[warn(unused_assignments)]` on by default

warning: value assigned to `body` is never read
   --> src/lib.rs:221:17
    |
221 |         let mut body: Option<String> = None; // Defualts to None
    |                 ^^^^
    |
    = help: maybe it is overwritten before being read?

warning: variable does not need to be mutable
   --> src/lib.rs:218:13
    |
218 |         let mut url: String; // Panics if missing
    |             ----^^^
    |             |
    |             help: remove this `mut`
    |
    = note: `#[warn(unused_mut)]` on by default

warning: variable does not need to be mutable
   --> src/lib.rs:219:13
    |
219 |         let mut port: String; // Panics if missing
    |             ----^^^^
    |             |
    |             help: remove this `mut`

warning: `api_tester` (lib) generated 4 warnings
error: could not compile `api_tester` (lib) due to 3 previous errors; 4 warnings emitted
