Bump lianad MSRV to 1.54

Now that the latest Debian stable was released with 1.63.

.github/workflows/main.yml

@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         toolchain:
-          - 1.48
+          - 1.54
           - nightly
         os:
           - ubuntu-latest
@@ -42,8 +42,7 @@ jobs:
         if: matrix.os == 'windows-latest'
         run: cargo test --verbose --no-default-features
       - name: Test on Rust ${{ matrix.toolchain }} (non Windows)
-        # See issue https://github.com/wizardsardine/liana/issues/69
-        if: matrix.os != 'windows-latest' && (matrix.os != 'macOS-latest' || matrix.toolchain != '1.48')
+        if: matrix.os != 'windows-latest'
         run: cargo test --verbose --color always -- --nocapture
 
   linter_gui:

CONTRIBUTING.md

@@ -66,7 +66,11 @@ query).
 
 ## Minimum Supported Rust Version
 
-`lianad` should always compile and pass tests using **Rust 1.48**.
+`lianad` should always compile and pass tests using **Rust 1.54**. The rationale behind this is
+support something reasonable, and preferably supported by all of:
+- [Guix](https://guix.gnu.org/)
+- Popular distributions' packages (especially Debian which is the most conservative)
+- [Mrustc](https://github.com/thepowersgang/mrustc)
 
 ## Style
 

doc/BUILD.md

@@ -8,10 +8,7 @@ this repository. They are pinned in a [`Cargo.lock`](../Cargo.lock) file at the
 We take security very seriously, and toolchain is a big part of that. We are moderatly conservative
 with dependencies and aim to target reasonable compiler versions that have had time to mature (ie
 that had the chance to be reviewed and distributed by third parties, as well as tested by the
-community).  The minimum supported Rust version for `lianad` currently is `1.48`, that is the
-version of [`rustc` shipped in Debian stable](https://packages.debian.org/stable/rustc). (It is also
-inferior to the latest version of `rustc` supported by
-[`mrustc`](https://github.com/thepowersgang/mrustc/) at the time of writing, `1.54`).
+community).  The minimum supported Rust version for `lianad` currently is `1.54`.
 
 If you want to not only build the daemon but the whole wallet including the GUI, you'll
 unfortunately have to use a more recent `cargo`. The minimum version supported by the GUI at the