From 94c86fbf7fd99a0851839e0f6439173e594b74f7 Mon Sep 17 00:00:00 2001
From: Ryan Stewart <47729789+RyanJamesStewart@users.noreply.github.com>
Date: Wed, 13 May 2026 16:07:18 -0700
Subject: [PATCH] Lift `tempfile` and `is-terminal` dev-dep floors so
 `-Zminimal-versions` doesn't pull `rustix = "0.37"`

The `Minimal versions` CI job resolves the workspace to its earliest
compatible versions on nightly, which pulls `rustix 0.37.0` via two
transitive paths:

- `proptest 1.6.0 -> tempfile 3.0 -> rustix 0.37`
- `codspeed-criterion-compat 4.0.1 -> is-terminal 0.4.6 -> rustix 0.37`

rustix 0.37.x uses `rustc_layout_scalar_valid_range_start`, which was
removed from the compiler in rust-lang/rust#155433 (merged 2026-05-03).
Tracking issue at bytecodealliance/rustix#1620; the 0.37 line is in
deep maintenance (0.37.28 released 2025-01-07) and no backport is in
flight.

Add two direct dev-dep floors, the minimum each path needs to land on
rustix `0.38+`:

- `tempfile = "3.7"` (3.7.0 is the first to require `rustix = "0.38"`)
- `is-terminal = "0.4.8"` (0.4.8 is the first to require `rustix = "0.38"`)

Normal builds are unaffected: the resolver already picks `tempfile
3.15.0` and `is-terminal 0.4.15`.

Verified locally with `cargo +nightly update -Zminimal-versions` and
`cargo +nightly build --workspace`: the lockfile resolves to a single
`rustix v0.38.0`, no `rustix v0.37.x` anywhere in the tree.
---
 Cargo.toml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Cargo.toml b/Cargo.toml
index 83d9253a..35da00de 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -42,6 +42,11 @@ criterion = { version = "4.0.1", package = "codspeed-criterion-compat" }
 env_logger = "0.11.6"
 proptest = "1.6.0"
 ron = "0.12.0"
+# `-Zminimal-versions` floors: keep the transitive `rustix` off 0.37 (broken
+# on current nightly, see bytecodealliance/rustix#1620). Two roots pull it:
+# `proptest -> tempfile` and `codspeed-criterion-compat -> is-terminal`.
+is-terminal = "0.4.8"
+tempfile = "3.7"
 varisat = "0.2.2"
 version-ranges = { version = "0.1.0", path = "version-ranges", package = "astral-version-ranges", features = ["proptest"] }