Use crdb-harness

.github/workflows/rust.yml

@@ -39,10 +39,6 @@ jobs:
     steps:
     # actions/checkout@v2
     - uses: actions/checkout@9a9194f87191a7e9055e3e9b95b8cfb13023bb08
-    - name: Download CockroachDB
-      run: ./tools/ci_download_cockroachdb
-    - name: Add CockroachDB to PATH
-      run: echo ./out/cockroachdb/bin >> $GITHUB_PATH
     - name: Build
       run: cargo build --tests --verbose
     - name: Run tests

Cargo.toml

@@ -23,6 +23,7 @@ tokio = { version = "1.32", default-features = false, features = [ "rt-multi-thr
 
 [dev-dependencies]
 anyhow = "1.0"
+crdb-harness = "0.0.1"
 diesel = { version = "2.2.2", features = [ "postgres", "r2d2" ] }
 libc = "0.2.154"
 tempfile = "3.8"

tests/README.md

@@ -3,13 +3,5 @@
 This directory includes some integration tests, specifically with the
 CockroachDB database, which uses a PostgreSQL protocol.
 
-Tests expect that the CockroachDB binary exist, and fail without it.
-
-To download a local copy of CockroachDB:
-
-```bash
-./tools/ci_download_cockroachdb
-```
-
-This downloads a binary to `./out/cockroachdb/bin/cockoach`. If you'd like
-to use your own binary here, replace this binary with your own executable.
+These tests rely on the `crdb-harness` crate to download CockroachDB
+at a particular version.