build,ci: specify MSRV and setup CI

.github/workflows/ci.yaml

@@ -47,7 +47,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        rust: [stable, beta]
+        # NB: Sync MSRV with Cargo.toml!
+        rust: [stable, beta, "1.88"]
     name: Test ${{ matrix.rust }}
     # Need libsqlite3-dev >= 3.38.0 (2022-02-22)
     runs-on: ubuntu-24.04
@@ -64,7 +65,7 @@ jobs:
 
       - name: Install Rust ${{ matrix.rust }}
         run: |
-          rustup update --no-self-update ${{ matrix.rust }}
+          rustup update --no-self-update
           rustup default ${{ matrix.rust }}
 
       - name: Disable webapi tests on stable rustc
@@ -80,9 +81,8 @@ jobs:
       - name: Test
         run: cargo test --workspace --all-targets
 
-        # WAIT: Next release of `criterion` for `--include-ignored`.
       - name: Test ignored
-        run: cargo test --workspace --all-targets -- --ignored
+        run: cargo test --workspace --all-targets -- --ignored-ignored
 
   nix-flake:
     name: Flake package

Cargo.toml

@@ -7,6 +7,11 @@ members = [
 ]
 default-members = ["blahd"]
 
+[workspace.package]
+edition = "2024"
+# NB: Sync MSRV with CI!
+rust-version = "1.88" # let_chains
+
 [workspace.lints.clippy]
 allow_attributes_without_reason = "warn"
 dbg_macro = "warn"

blah-types/Cargo.toml

@@ -1,7 +1,8 @@
 [package]
 name = "blah-types"
 version = "0.0.0"
-edition = "2024"
+edition.workspace = true
+rust-version.workspace = true
 
 [features]
 default = ["ed25519-dalek/default"]

blahctl/Cargo.toml

@@ -1,7 +1,8 @@
 [package]
 name = "blahctl"
 version = "0.1.0"
-edition = "2024"
+edition.workspace = true
+rust-version.workspace = true
 
 [dependencies]
 anyhow = "1"

blahd/Cargo.toml

@@ -1,7 +1,8 @@
 [package]
 name = "blahd"
 version = "0.0.0"
-edition = "2024"
+edition.workspace = true
+rust-version.workspace = true
 
 [features]
 default = []

rust-toolchain.toml

@@ -1,4 +0,0 @@
-[toolchain]
-channel = "1.85"
-profile = "default"
-components = ["llvm-tools"]