rust: update minimum supported Rust compiler version
Debian stable backported `rustc 1.41.1` for a Firefox release that needed it,
so we can finally update the compiler version to something that isn't more than
a year old.
This means that (among other things [1]), `async await` syntax is usable!
Differential Revision: https://phab.mercurial-scm.org/D9138
--- a/rust/README.rst Fri Sep 25 11:29:19 2020 +0200
+++ b/rust/README.rst Mon Sep 28 15:08:02 2020 +0200
@@ -61,8 +61,8 @@
Developing Rust
===============
-The current version of Rust in use is ``1.34.2``, because it's what Debian
-stable has. You can use ``rustup override set 1.34.2`` at the root of the repo
+The current version of Rust in use is ``1.41.1``, because it's what Debian
+stable has. You can use ``rustup override set 1.41.1`` at the root of the repo
to make it easier on you.
Go to the ``hg-cpython`` folder::
--- a/rust/hg-core/Cargo.toml Fri Sep 25 11:29:19 2020 +0200
+++ b/rust/hg-core/Cargo.toml Mon Sep 28 15:08:02 2020 +0200
@@ -27,10 +27,8 @@
zstd = "0.5.3"
rust-crypto = "0.2.36"
-# We don't use the `miniz-oxide` backend because its minimum Rust version is
-# `1.36`. However, this PR (https://github.com/Frommi/miniz_oxide/pull/84/files)
-# introduces a flag `no_extern_crate_alloc` to bring the requirement back down
-# to `1.34`.
+# We don't use the `miniz-oxide` backend to not change rhg benchmarks and until
+# we have a clearer view of which backend is the fastest.
[dependencies.flate2]
version = "1.0.16"
features = ["zlib"]