Bump minimum supported Rust version (#15768)

Important crates such as `log` and `regex` have bumped theirs to 1.60.0
as well.

.github/workflows/tests.yml

@@ -35,7 +35,7 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@1.58.1
+        uses: dtolnay/rust-toolchain@1.60.0
       - uses: Swatinem/rust-cache@v2
       - uses: matrix-org/setup-python-poetry@v1
         with:
@@ -93,7 +93,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@1.58.1
+        uses: dtolnay/rust-toolchain@1.60.0
       - uses: Swatinem/rust-cache@v2
 
       - name: Setup Poetry
@@ -150,7 +150,7 @@ jobs:
         with:
           ref: ${{ github.event.pull_request.head.sha }}
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@1.58.1
+        uses: dtolnay/rust-toolchain@1.60.0
       - uses: Swatinem/rust-cache@v2
       - uses: matrix-org/setup-python-poetry@v1
         with:
@@ -167,7 +167,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@1.58.1
+        uses: dtolnay/rust-toolchain@1.60.0
         with:
             components: clippy
       - uses: Swatinem/rust-cache@v2
@@ -268,7 +268,7 @@ jobs:
             postgres:${{ matrix.job.postgres-version }}
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@1.58.1
+        uses: dtolnay/rust-toolchain@1.60.0
       - uses: Swatinem/rust-cache@v2
 
       - uses: matrix-org/setup-python-poetry@v1
@@ -308,7 +308,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@1.58.1
+        uses: dtolnay/rust-toolchain@1.60.0
       - uses: Swatinem/rust-cache@v2
 
       # There aren't wheels for some of the older deps, so we need to install
@@ -416,7 +416,7 @@ jobs:
         run: cat sytest-blacklist .ci/worker-blacklist > synapse-blacklist-with-workers
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@1.58.1
+        uses: dtolnay/rust-toolchain@1.60.0
       - uses: Swatinem/rust-cache@v2
 
       - name: Run SyTest
@@ -556,7 +556,7 @@ jobs:
           path: synapse
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@1.58.1
+        uses: dtolnay/rust-toolchain@1.60.0
       - uses: Swatinem/rust-cache@v2
 
       - uses: actions/setup-go@v4
@@ -584,7 +584,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@1.58.1
+        uses: dtolnay/rust-toolchain@1.60.0
       - uses: Swatinem/rust-cache@v2
 
       - run: cargo test

changelog.d/15768.misc

@@ -0,0 +1 @@
+Bump minimum supported Rust version to 1.60.0.

docs/upgrade.md

@@ -87,6 +87,14 @@ process, for example:
     wget https://packages.matrix.org/debian/pool/main/m/matrix-synapse-py3/matrix-synapse-py3_1.3.0+stretch1_amd64.deb
     dpkg -i matrix-synapse-py3_1.3.0+stretch1_amd64.deb
     ```
+# Upgrading to v1.86.0
+
+## Minimum supported Rust version
+
+The minimum supported Rust version has been increased from v1.58.1 to v1.60.0.
+Users building from source will need to ensure their `rustc` version is up to
+date.
+
 
 # Upgrading to v1.85.0
 

rust/Cargo.toml

@@ -7,7 +7,7 @@ name = "synapse"
 version = "0.1.0"
 
 edition = "2021"
-rust-version = "1.58.1"
+rust-version = "1.60.0"
 
 [lib]
 name = "synapse"