error: this file contains an un-closed delimiter
  --> $DIR/issue-2354.rs:18:66
   |
LL | fn foo() {
   |          - un-closed delimiter
...
LL |   match Some(10) {
   |                  - this delimiter might not be properly closed...
...
LL | }
   | - ...as it matches this but it has different indentation
...
LL |
   |                                                                  ^

error[E0601]: `main` function not found in crate `issue_2354`
  --> $DIR/issue-2354.rs:1:1
   |
LL | / fn foo() {
LL | |
LL | |
LL | |
...  |
LL | | fn main() {}
LL | |
   | |_________________________________________________________________^ the main function must be defined at the crate level (in `$DIR/issue-2354.rs`)
   |
note: here is a function named `main`
  --> $DIR/issue-2354.rs:17:1
   |
LL | fn main() {}
   | ^^^^^^^^^^^^
   = note: you have one or more functions named `main` not defined at the crate level
   = help: either move the `main` function definitions or attach the `#[main]` attribute to one of them

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0601`.