run clippy on default, all, and allocator features

This way all 4 major configurations are linted.

engage.toml

@@ -78,7 +78,19 @@ RUSTDOCFLAGS="-D warnings" cargo doc \
 """
 
 [[task]]
-name = "cargo-clippy"
+name = "clippy/default"
+group = "lints"
+script = """
+cargo clippy \
+    --workspace \
+    --all-targets \
+    --color=always \
+    -- \
+    -D warnings
+"""
+
+[[task]]
+name = "clippy/all"
 group = "lints"
 script = """
 cargo clippy \
@@ -90,6 +102,32 @@ cargo clippy \
     -D warnings
 """
 
+[[task]]
+name = "clippy/jemalloc"
+group = "lints"
+script = """
+cargo clippy \
+    --workspace \
+    --features jemalloc \
+    --all-targets \
+    --color=always \
+    -- \
+    -D warnings
+"""
+
+[[task]]
+name = "clippy/hardened_malloc"
+group = "lints"
+script = """
+cargo clippy \
+    --workspace \
+    --features hardened_malloc \
+    --all-targets \
+    --color=always \
+    -- \
+    -D warnings
+"""
+
 [[task]]
 name = "lychee"
 group = "lints"