diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 2bb37c1..ffe0eda 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -54,28 +54,3 @@ jobs:
         with:
           command: build
           args: -Z avoid-dev-deps --features example_generated --target thumbv6m-none-eabi
-
-  suite:
-    name: Test suite
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: true
-      matrix:
-        rust:
-          - nightly
-    steps:
-      - name: Checkout sources
-        uses: actions/checkout@v2
-
-      - name: Install Rust toolchain
-        uses: actions-rs/toolchain@v1
-        with:
-          profile: minimal
-          toolchain: ${{ matrix.rust }}
-          override: true
-
-      - name: Default features
-        uses: actions-rs/cargo@v1
-        with:
-          command: test
-          args: -p test_suite
\ No newline at end of file
diff --git a/Cargo.toml b/Cargo.toml
index c6e8c9e..44d0f19 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,10 +1,10 @@
 [package]
-
 name = "bitflags"
 # NB: When modifying, also modify:
 #   1. html_root_url in lib.rs
 #   2. number in readme (for breaking changes)
 version = "1.2.1"
+edition = "2018"
 authors = ["The Rust Project Developers"]
 license = "MIT/Apache-2.0"
 keywords = ["bit", "bitmask", "bitflags", "flags"]
@@ -16,22 +16,22 @@ categories = ["no-std"]
 description = """
 A macro to generate structures which behave like bitflags.
 """
-exclude = [
-    "appveyor.yml",
-    "bors.toml"
-]
+exclude = ["bors.toml"]
 
 [dependencies]
 core = { version = '1.0.0', optional = true, package = 'rustc-std-workspace-core' }
 compiler_builtins = { version = '0.1.2', optional = true }
 
+[dev-dependencies]
+trybuild = "1.0"
+serde = "1.0"
+serde_derive = "1.0"
+serde_json = "1.0"
+
 [features]
 default = []
 example_generated = []
 rustc-dep-of-std = ["core", "compiler_builtins"]
 
 [package.metadata.docs.rs]
-features = [ "example_generated" ]
-
-[workspace]
-members = ["test_suite"]
+features = ["example_generated"]
diff --git a/test_suite/Cargo.toml b/test_suite/Cargo.toml
deleted file mode 100644
index ac459d5..0000000
--- a/test_suite/Cargo.toml
+++ /dev/null
@@ -1,11 +0,0 @@
-[project]
-name = "test_suite"
-version = "0.0.0"
-edition = "2018"
-
-[dependencies]
-bitflags = { path = "../" }
-trybuild = "1.0"
-serde = "1.0"
-serde_derive = "1.0"
-serde_json = "1.0"
diff --git a/test_suite/tests/compile-fail/private_flags.rs b/tests/compile-fail/private_flags.rs
similarity index 100%
rename from test_suite/tests/compile-fail/private_flags.rs
rename to tests/compile-fail/private_flags.rs
diff --git a/test_suite/tests/compiletest.rs b/tests/compiletest.rs
similarity index 100%
rename from test_suite/tests/compiletest.rs
rename to tests/compiletest.rs
diff --git a/test_suite/tests/conflicting_trait_impls.rs b/tests/conflicting_trait_impls.rs
similarity index 100%
rename from test_suite/tests/conflicting_trait_impls.rs
rename to tests/conflicting_trait_impls.rs
diff --git a/test_suite/tests/external.rs b/tests/external.rs
similarity index 100%
rename from test_suite/tests/external.rs
rename to tests/external.rs
diff --git a/test_suite/tests/external_no_std.rs b/tests/external_no_std.rs
similarity index 100%
rename from test_suite/tests/external_no_std.rs
rename to tests/external_no_std.rs
diff --git a/test_suite/tests/redefine_core.rs b/tests/redefine_core.rs
similarity index 100%
rename from test_suite/tests/redefine_core.rs
rename to tests/redefine_core.rs
diff --git a/test_suite/tests/serde.rs b/tests/serde.rs
similarity index 100%
rename from test_suite/tests/serde.rs
rename to tests/serde.rs
diff --git a/test_suite/tests/u128_bitflags.rs b/tests/u128_bitflags.rs
similarity index 96%
rename from test_suite/tests/u128_bitflags.rs
rename to tests/u128_bitflags.rs
index 8ed1546..7501db7 100644
--- a/test_suite/tests/u128_bitflags.rs
+++ b/tests/u128_bitflags.rs
@@ -1,5 +1,3 @@
-#![cfg(feature = "unstable")]
-
 use bitflags::bitflags;
 
 bitflags! {