From 5f6984a222e21e97976bdcb773dd3fe008b9fc26 Mon Sep 17 00:00:00 2001
From: dotCooCoo <RobertLeeLW@gmail.com>
Date: Fri, 13 Nov 2026 21:22:09 -0800
Subject: [PATCH] workspace: allow unused_workspace_dependencies in the Cargo
 lint table

unused_workspace_dependencies is a Cargo lint, so its level belongs in
[workspace.lints.cargo]. Under [workspace.lints.rust] and
[workspace.lints.clippy], Cargo passed it to rustc and Clippy as
-A unused_workspace_dependencies and -A clippy::unused_workspace_dependencies,
which each crate reported as E0602 (unknown lint). The [lints] entry in
.cargo/config.toml did not set the level either, so Cargo 1.100 still
printed 73 "unused workspace dependency" warnings for the workspace.

The allow now sits in [workspace.lints.cargo], which every member
inherits through [lints] workspace = true, and .cargo/config.toml is
removed. On Cargo 1.100, cargo check --workspace --tests prints no E0602
and no unused workspace dependency warnings. Cargo 1.95 accepts the table
but reports lints.cargo as an unused manifest key.

https://doc.rust-lang.org/cargo/reference/lints.html#unused_workspace_dependencies
https://doc.rust-lang.org/cargo/reference/workspaces.html#the-lints-table
---
 .cargo/config.toml | 2 --
 Cargo.toml         | 5 +++--
 2 files changed, 3 insertions(+), 4 deletions(-)
 delete mode 100644 .cargo/config.toml

diff --git a/.cargo/config.toml b/.cargo/config.toml
deleted file mode 100644
index 873f4f7aac..0000000000
--- a/.cargo/config.toml
+++ /dev/null
@@ -1,2 +0,0 @@
-[lints]
-cargo.unused_workspace_dependencies = "allow"
diff --git a/Cargo.toml b/Cargo.toml
index 57b7d3ef7c..07bd9c4937 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -174,13 +174,14 @@ chrono = { version = "0.4.45", default-features = false, features = ["std"] }
 
 [workspace.lints.rust]
 unsafe_code = "forbid"
-unused_workspace_dependencies = "allow"
 unexpected_cfgs = { level = "warn", check-cfg = ["cfg(craft_pdf_unicode_fixtures)"] }
 
+[workspace.lints.cargo]
+unused_workspace_dependencies = "allow"
+
 [workspace.lints.clippy]
 cognitive_complexity = "deny"
 too_many_arguments = "deny"
-unused_workspace_dependencies = "allow"
 wildcard_imports = "deny"
 dbg_macro = "warn"
 todo = "warn"