cargo install gluon_repl won't compile

[rowanfr]

Similar to the previous issue #957 when I run cargo install gluon_repl it wont compile, instead one has to run cargo install gluon_repl --git https://github.com/gluon-lang/gluon/. I think this would be solved by a formal release but I'm uncertain how cargo install works with this

[katyo]

Installing repl using cargo still doesn't work.

UPD: Seems it can be built using nightly rust only.
I think such fact is important to note in README.

UPD2: Oh seems using rust 1.73 I built repl successfully (It failed with 1.72).
It will be good to update actual MSRV in README.