Topiary v0.6.0

[Niols]

Website: https://topiary.tweag.io/
Repository: https://github.com/tweag/topiary
Release: https://github.com/tweag/topiary/releases/tag/v0.6.0
Change log: https://github.com/tweag/topiary/blob/v0.6.0/CHANGELOG.md

[mseri]

It builds wherever it can. Is the update to cargo lock v4 necessary?

#=== ERROR while compiling topiary.0.6.0 ======================================#
# context              2.4.0~alpha1~dev | linux/x86_64 | ocaml-base-compiler.4.03.0 | pinned(https://github.com/tweag/topiary-opam/releases/download/v0.6.0/source-code-with-submodules.tar.xz)
# path                 ~/.opam/4.03/.opam-switch/build/topiary.0.6.0
# command              ~/.opam/opam-init/hooks/sandbox.sh build cargo build --release --package topiary-cli
# exit-code            101
# env-file             ~/.opam/log/topiary-7-ed0a71.env
# output-file          ~/.opam/log/topiary-7-ed0a71.out
### output ###
# error: failed to parse lock file at: /home/opam/.opam/4.03/.opam-switch/build/topiary.0.6.0/Cargo.lock
# 
# Caused by:
#   lock file version `4` was found, but this version of Cargo does not understand this lock file, perhaps Cargo needs to be updated?

[Niols]

It looks like Topiary now requires Rust 1.83.0 anyway, and probably it comes with Cargo lock v4?

[mseri]

I have been playing around with this and since 2024 is still unstable, topiary would be completely uninstallable. We may revisit this in the future. For now I think it is better to stick with 2021 until the next release, when 2024 will be stable. What do you think?

[Niols]

I think you might be right; requiring Rust 2024 here will prevent installation in some places where it could in fact be installed, and that is maybe a bit of a shame. Shall I revert my previous commit and we keep it at that?