update MSRV to 1.52.0

- There is a compiler bug in 1.51.0 that blocks #260. This is fixed in
  1.52.0

Author: andrewgazelka

.github/bors.toml

@@ -2,14 +2,14 @@ block_labels = ["wip"]
 delete_merged_branches = true
 status = [
     "Rustfmt",
-    "ci (1.51.0, stm32h743)",
-    "ci (1.51.0, stm32h753)",
-    "ci (1.51.0, stm32h743v)",
-    "ci (1.51.0, stm32h753v)",
-    "ci (1.51.0, stm32h747cm7)",
-    "ci (1.51.0, stm32h7b3)",
-    "ci (1.51.0, stm32h7b0)",
-    "ci (1.51.0, stm32h735)",
+    "ci (1.52.0, stm32h743)",
+    "ci (1.52.0, stm32h753)",
+    "ci (1.52.0, stm32h743v)",
+    "ci (1.52.0, stm32h753v)",
+    "ci (1.52.0, stm32h747cm7)",
+    "ci (1.52.0, stm32h7b3)",
+    "ci (1.52.0, stm32h7b0)",
+    "ci (1.52.0, stm32h735)",
     "ci (stable, stm32h743)",
     "ci (stable, stm32h753)",
     "ci (stable, stm32h743v)",

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:                   # All permutations of {rust, mcu}
         rust:
-          - 1.51.0  # MSRV
+          - 1.52.0  # MSRV
           - stable
         mcu:
           - stm32h743

CHANGELOG.md

@@ -6,7 +6,7 @@
    * Implemented additional conversion utilities for `time`
    * **Breaking**: Changed I2S constructors to take less arguments
 
-* MSRV increased to 1.51.0
+* MSRV increased to 1.52.0
 * **Breaking**: Simplified API for reading device signature
   values. `VAL::get().read()` becomes `VAL::read()`
 * adc: Allow parallel execution of multiple ADCs through `start_conversion()`

README.md

@@ -110,7 +110,7 @@ programming interfaces are only available on the high density connectors.
 Minimum supported Rust version
 ------------------------------
 
-The Minimum Supported Rust Version (MSRV) at the moment is **1.51.0**. Older
+The Minimum Supported Rust Version (MSRV) at the moment is **1.52.0**. Older
 versions **may** compile, especially when some features are not used
 in your application.