test(rsjudge-utils): 🚚 replace trybuild with doctests

.github/workflows/building.yml

@@ -23,7 +23,6 @@ jobs:
         uses: moonrepo/setup-rust@v1
         with:
           channel: stable
-          components: rust-src
           bins: cargo-hack, cargo-deny, clippy-sarif, sarif-fmt
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
@@ -58,7 +57,7 @@ jobs:
           sarif_file: rust-clippy-results.sarif
           wait-for-processing: true
       - name: Run tests
-        run: cargo hack test --all-targets --each-feature --verbose --workspace
+        run: cargo hack test --each-feature --verbose --workspace
       - name: Check dependency graph
         run: cargo deny --all-features --workspace check
   msrv:
@@ -74,7 +73,6 @@ jobs:
         uses: moonrepo/setup-rust@v1
         with:
           channel: "1.77"
-          components: rust-src
           bins: cargo-hack
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
@@ -97,7 +95,7 @@ jobs:
       - name: Check for MSRV compliance
         env:
           TRYBUILD: overwrite
-        run: cargo hack test --rust-version --all-targets --each-feature --workspace
+        run: cargo hack test --rust-version --each-feature --verbose --workspace
   pkg-deb:
     runs-on: ubuntu-20.04
     steps:

crates/rsjudge-utils/Cargo.toml

@@ -17,4 +17,3 @@ tokio = { workspace = true, features = ["process", "macros", "rt-multi-thread"]
 
 [dev-dependencies]
 anyhow = "1.0.86"
-trybuild = "1.0.97"

crates/rsjudge-utils/src/error_macros.rs

@@ -24,3 +24,27 @@ macro_rules! log_if_error {
         })
     };
 }
+
+/// ```compile_fail
+/// use std::fmt::Display;
+///
+/// use rsjudge_utils::log_if_error;
+///
+/// #[derive(Debug)]
+/// struct S;
+/// impl Display for S {
+///     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+///         write!(f, "S")
+///     }
+/// }
+///
+/// impl S {
+///     fn inspect_err<F: FnOnce(Self) -> Self>(self, f: F) -> Self {
+///         f(self)
+///     }
+/// }
+///
+/// let _ = log_if_error!(S);
+/// ```
+#[cfg(doctest)]
+pub struct LoggingOnNonResult;