Build rust-analyzer on FreeBSD.

The official FreeBSD package rust-analyzer crashes. I suspect this is because its built for rust stable which conflicts with the rust-nightly I have installed.

ansible/roles/rust/tasks/freebsd.yaml

@@ -2,5 +2,28 @@
   package:
     name:
       - rust-nightly
-      - rust-analyzer
     state: present
+
+- name: Create directories
+  file:
+    name: "{{ item }}"
+    state: directory
+    mode: 0755
+    owner: root
+    group: wheel
+  loop:
+    - "/opt/rust-analyzer"
+
+- name: Clone rust-analyzer Source
+  git:
+    repo: "https://github.com/rust-lang/rust-analyzer.git"
+    dest: /opt/rust-analyzer
+    version: "2023-05-01"
+    force: true
+  diff: false
+
+- name: Build rust-analyzer
+  command: "cargo build --release"
+  args:
+    creates: "/opt/rust-analyzer/target/release/rust-analyzer"
+    chdir: /opt/rust-analyzer