Re-enable CI on Julia nightly

[DilumAluthge]

Closes #47158

[DilumAluthge]

@IanButterworth Per JuliaLang/julia#42806 (comment), I was under the impression that this was fixed by JuliaLang/julia#42806. But it looks like it is still failing?

Here is the version info for the Julia nightly that was used on this job:

Julia Version 1.8.0-DEV.832
Commit 404e584165 (2021-10-28 01:11 UTC)
Platform Info:
  OS: Linux (x86_64-pc-linux-gnu)
  CPU: Intel(R) Xeon(R) Platinum 8171M CPU @ 2.60GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-12.0.1 (ORCJIT, skylake-avx512)

[IanButterworth]

I thought this might happen. It seems like it will need JuliaLang/Pkg.jl#2787

I'll check manually

[IanButterworth]

Yeah JuliaLang/Pkg.jl#2787 is needed.

Basically the manifest is invalid for the current nightly v1.8, so that PR allows even a non-updating Pkg.resolve to update any included or missing stdlibs.
It mimics the way non-versioned stdlibs are allowed to change/be added as julia version changes, but for versioned stdlibs

               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.8.0-DEV.834 (2021-10-28)
 _/ |\__'_|_|_|\__'_|  |  Commit c762f10502 (0 days old master)
|__/                   |

(v1.8) pkg> activate /Users/ian/Documents/GitHub/General/.ci
  Activating project at `~/Documents/GitHub/General/.ci`

(.ci) pkg> resolve
ERROR: Unsatisfiable requirements detected for package OpenBLAS_jll [4536629a]:
 OpenBLAS_jll [4536629a] log:
 ├─possible versions are: 0.3.17 or uninstalled
 └─restricted to versions 0.3.13 by an explicit requirement — no versions left

(.ci) pkg> 

% /Applications/Julia-1.8.app/Contents/Resources/julia/bin/julia --project
               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.8.0-DEV.834 (2021-10-28)
 _/ |\__'_|_|_|\__'_|  |  Commit c762f10502 (0 days old master)
|__/                   |

julia> import Pkg
[ Info: Precompiling Pkg [44cfe95a-1eb2-52ea-b672-e2afdf69b79f]

(Pkg) pkg> activate /Users/ian/Documents/GitHub/General/.ci
  Activating project at `~/Documents/GitHub/General/.ci`

(.ci) pkg> resolve
   Installed RegistryTools ────────────── v1.5.7
   Installed licensecheck_jll ─────────── v0.3.1+1
   Installed StringDistances ──────────── v0.10.0
   Installed LicenseCheck ─────────────── v0.2.2
   Installed UnbalancedOptimalTransport ─ v0.2.0
   Installed RegistryCI ───────────────── v7.1.7
   Installed VisualStringDistances ────── v0.1.1
  Downloaded artifact: licensecheck
  No Changes to `~/Documents/GitHub/General/.ci/Project.toml`
    Updating `~/Documents/GitHub/General/.ci/Manifest.toml`
  [7b1f6079] + FileWatching
  [ea8e919c] ~ SHA ⇒ v0.7.0
  [4536629a] ↑ OpenBLAS_jll v0.3.13+7 ⇒ v0.3.17+2

(.ci) pkg> 

[IanButterworth]

Hopefully fixed on nightlies now. Can someone rerun the nightly job?

[DilumAluthge]

@IanButterworth Why is precompile trying to write to the project file?

[IanButterworth]

Why is precompile trying to write to the project file?

I tried locally and there were no changes made to the Project (confirmed by git)

I then set the project as read-only and hit

(.ci) pkg> resolve
ERROR: SystemError: opening file "/Users/ian/Documents/GitHub/General/.ci/Project.toml": Permission denied

I guess the heuristic here isn't actually detecting that there's no changes
https://github.com/JuliaLang/Pkg.jl/blob/6f8e36db88ed0c7727b5616b2baa58787cdc4e95/src/Types.jl#L1014

[IanButterworth]

Why is Pkg.precompile() directly called?
Pkg.instantiate() is called so precompile will be automatically called. And that precompile won't hit the resolve that's now called when it's run manually

[IanButterworth]

Actually, I think Pkg.instantiate() should still allow Pkg.precompile() to resolve so that versioned stdlibs can be updated, so my question is moot and I need to fix that on Pkg