ci: bring back build tests (#1813)

This directory was deleted when `cargo hack` was introduced, however
there were some tests that were still useful (macro failure output).

Also, additional build tests will be added over time.

1 files changed, 15 insertions, 0 deletions

diff --git a/tests-build/Cargo.toml b/tests-build/Cargo.toml
new file mode 100644
index 00000000..68231d71
--- /dev/null
+++ b/tests-build/Cargo.toml
@@ -0,0 +1,15 @@
+[package]
+name = "tests-build"
+version = "0.1.0"
+authors = ["Tokio Contributors <team@tokio.rs>"]
+edition = "2018"
+publish = false
+
+[features]
+full = ["tokio/full"]
+
+[dependencies]
+tokio = { path = "../tokio", optional = true }
+
+[dev-dependencies]
+trybuild = "1.0"