Stop running "cargo check" in CI (#285)

* Stop running "cargo check" in CI

Signed-off-by: Kevin Lingerfelt <kl@buoyant.io>

* Attempt to clear cargo cache

Signed-off-by: Kevin Lingerfelt <kl@buoyant.io>

* Remove cache clearing step

Signed-off-by: Kevin Lingerfelt <kl@buoyant.io>

.travis.yml

@@ -20,12 +20,10 @@ jobs:
     - stage: test
       language: rust
       rust: stable
-      cache:
-        cargo: true
+      cache: cargo
       install:
         - cargo fetch --locked
       script:
-        - cargo check --frozen
         - cargo test --frozen
 
     - language: go

BUILD.md

@@ -346,9 +346,17 @@ It supports two environment variables:
 
 ### Testing
 
+To build the Rust code and run tests, run:
+
+```bash
+cargo test
+```
+
+To analyze the Rust code and report errors, without building object files or
+running tests, run:
+
 ```bash
 cargo check
-cargo test
 ```
 
 # Dependencies