Update rocket

[quentinbaradat]

Hi,

I had an issue when compiling the demo server. It appears that it is fixed by updating rocket from 0.3 to 0.4

See :

rust-lang/rust#57120

Also, I removed an unused use font_kit::loaders.

This PR is maybe not suitable for the master branch : the demo compiles and starts.

Regards,

[wayneashleyberry]

This got me a lot closer to building and running the demo, but still not quite there. Here's the error I get:

   Compiling pathfinder_server v0.1.0 (/Users/wayneberry/Desktop/pathfinder-fix/demo/server)
error[E0433]: failed to resolve: use of undeclared type or module `loaders`
   --> demo/server/src/main.rs:582:32
    |
582 |             let loader = match loaders::core_text::Font::from_bytes(otf_data, request.font_index) {
    |                                ^^^^^^^ use of undeclared type or module `loaders`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0433`.
error: Could not compile `pathfinder_server`.

To learn more, run the command again with --verbose.

❯ rustc --version
rustc 1.35.0-nightly (70f130954 2019-04-16)

[lnicola]

@wayneashleyberry Looks like https://github.com/pcwalton/pathfinder/pull/105/files#diff-0bcf7e8d3f0a75f96e4ca0fe3bf2d09dL44

[pcwalton]

Rocket is no longer used in Pathfinder 3.