During cargo install --path rust, xi-core-lib fails to compile, "mismatched types"

[ndrewtl]

Xi-Editor Issue Template

• I have searched existing issues and could not find my issue.
• I have studied the documentation.

Details

OS: Fedora 31

$ rustc --version
rustc 1.39.0 (4560ea788 2019-11-04)

rustc installed via rustup
Not using frontend

user@host:~/xi-editor % cargo install --path rust
  Installing xi-core v0.3.0 (/home/user/xi-editor/rust)
    Updating git repository `https://github.com/kornelski/rust-onig`
    Updating crates.io index
warning: Patch `onig v5.0.0 (https://github.com/kornelski/rust-onig?branch=default-bindgen#c9f5b5be)` was not used in the crate graph.
Patch `onig_sys v69.2.0 (https://github.com/kornelski/rust-onig?branch=default-bindgen#c9f5b5be)` was not used in the crate graph.
Check that the patched package version and available features are compatible
with the dependency requirements. If the patch has a different version from
what is locked in the Cargo.lock file, run `cargo update` to use the new
version. This may also occur with an optional dependency that is not enabled.
   Compiling xi-core-lib v0.3.0 (/home/user/xi-editor/rust/core-lib)
error[E0308]: mismatched types
   --> core-lib/src/watcher.rs:101:29
    |
101 |         let inner = watcher(tx_event, Duration::from_millis(100)).expect("watcher should spawn");
    |                             ^^^^^^^^ expected struct `crossbeam_channel::channel::Sender`, found a different struct `crossbeam_channel::channel::Sender`
    |
    = note: expected type `crossbeam_channel::channel::Sender<std::result::Result<notify::Event, notify::Error>>`
               found type `crossbeam_channel::channel::Sender<_>`
note: Perhaps two different versions of crate `crossbeam_channel` are being used?
   --> core-lib/src/watcher.rs:101:29
    |
101 |         let inner = watcher(tx_event, Duration::from_millis(100)).expect("watcher should spawn");
    |                             ^^^^^^^^

error: aborting due to previous error

For more information about this error, try `rustc --explain E0308`.
error: failed to compile `xi-core v0.3.0 (/home/user/xi-editor/rust)`, intermediate artifacts can be found at `/home/user/xi-editor/rust/target`

Caused by:
  could not compile `xi-core-lib`.

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

Expected vs Actual

Expected to build without failures, and install to $CARGO_PATH

Actual: build failure