From 6e7efa20addd7ed64610813244d97a1cf8735f43 Mon Sep 17 00:00:00 2001
From: tison <wander4096@gmail.com>
Date: Mon, 15 Dec 2025 18:06:18 +0800
Subject: [PATCH 1/2] ci: find MSRV from cargo metadata

Signed-off-by: tison <wander4096@gmail.com>
---
 .github/workflows/ci.yml | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 73b8099..58d09a5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -55,12 +55,30 @@ jobs:
           cargo +nightly fmt --all -- --check
           cargo +nightly clippy --all-targets --all-features -- -D warnings
 
+  msrv:
+    name: Resolve MSRV
+    runs-on: ubuntu-24.04
+    outputs:
+      rust-versions: ${{ steps.metadata.outputs.rust-versions }}
+    steps:
+      - uses: actions/checkout@v6
+      - name: Delete rust-toolchain.toml
+        run: rm rust-toolchain.toml
+      - name: Install toolchain
+        uses: dtolnay/rust-toolchain@nightly
+      - id: metadata
+        run: |
+          msrv=$(cargo metadata --format-version 1 --no-deps | jq -r '.packages[] | select(.name == "datasketches") | .rust_version')
+          echo "MSRV: $msrv"
+          echo "rust-versions=[\"${msrv}\", \"stable\"]" >> "$GITHUB_OUTPUT"
+
   test:
     name: Run tests
+    needs: msrv
     strategy:
       matrix:
         os: [ ubuntu-24.04, macos-14, windows-2022 ]
-        rust-version: [ "1.85.0", "stable" ]
+        rust-version: ${{ fromJson(needs.msrv.outputs.rust-versions) }}
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v6

From b0785f985d8b38e9d0998c79d58ac4a87b4b3d18 Mon Sep 17 00:00:00 2001
From: tison <wander4096@gmail.com>
Date: Mon, 15 Dec 2025 18:23:50 +0800
Subject: [PATCH 2/2] better

Signed-off-by: tison <wander4096@gmail.com>
---
 .github/workflows/ci.yml | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 58d09a5..96d7cbf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -62,13 +62,9 @@ jobs:
       rust-versions: ${{ steps.metadata.outputs.rust-versions }}
     steps:
       - uses: actions/checkout@v6
-      - name: Delete rust-toolchain.toml
-        run: rm rust-toolchain.toml
-      - name: Install toolchain
-        uses: dtolnay/rust-toolchain@nightly
       - id: metadata
         run: |
-          msrv=$(cargo metadata --format-version 1 --no-deps | jq -r '.packages[] | select(.name == "datasketches") | .rust_version')
+          msrv=$(yq '.workspace.package.rust-version' Cargo.toml)
           echo "MSRV: $msrv"
           echo "rust-versions=[\"${msrv}\", \"stable\"]" >> "$GITHUB_OUTPUT"