From df267494f2610c81d9e8e54d26daeacb92c64bf8 Mon Sep 17 00:00:00 2001
From: ilslv <ilya.solovyiov@gmail.com>
Date: Tue, 14 Dec 2021 09:26:57 +0300
Subject: [PATCH] Add `minimal_versions` CI job

---
 .github/workflows/ci.yml | 28 ++++++++++++++++++++++++++++
 Cargo.toml               |  4 ++--
 2 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3df77f6..d61f487 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -140,3 +140,31 @@ jobs:
       with:
         token: ${{ secrets.GITHUB_TOKEN }}
         args: --workspace --all-features --all-targets -- -D warnings
+  minimal_versions:
+    name: Minimal versions
+    needs: smoke
+    strategy:
+      matrix:
+        os: [ "ubuntu-latest", "windows-latest", "macos-latest" ]
+        rust: [ "1.54.0" ] # MSRV
+    continue-on-error: ${{ matrix.rust != 'stable' }}
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+         profile: minimal
+         toolchain: nightly
+      - uses: actions-rs/toolchain@v1
+        with:
+         profile: minimal
+         toolchain: ${{ matrix.rust }}
+         override: true
+      - name: Downgrade crates to minimal supported versions
+        run: cargo +nightly update -Z minimal-versions
+      - uses: Swatinem/rust-cache@v1
+      - name: Default features
+        run: cargo test --workspace
+      - name: No-default features
+        run: cargo test --workspace --no-default-features
diff --git a/Cargo.toml b/Cargo.toml
index 47a5080..3adb916 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -30,10 +30,10 @@ pre-release-replacements = [
 ]
 
 [dependencies]
-serde = { version = "1.0", features = ["derive"] }
+serde = { version = "1.0.113", features = ["derive"] }
 serde_json = "1.0"
 once_cell = "1.2.0"
-log = "0.4"
+log = "0.4.4"
 
 [dev-dependencies]
 assert_fs = "1.0"