Pkg.test(; julia_args = ["--threads=auto"]) seems to not have effect on julia 1.12.0-beta2

[stemann]

It seems #4141 somehow did not have effect in 1.12.0-beta1 despite inclusion in #4203.

$ nproc 
16

$ cd Example.jl

$ echo '@show Threads.nthreads()' >> test/runtests.jl

$ rm -f Manifest.toml

$ julia +1.11 --project --eval 'using Pkg; Pkg.test(; julia_args = ["--threads=auto"])'
...
     Testing Running tests...
Threads.nthreads() = 16

$ rm -f Manifest.toml

$ julia +1.12 --project --eval 'using Pkg; Pkg.test(; julia_args = ["--threads=auto"])'
...
     Testing Running tests...
Threads.nthreads() = 1

[stemann]

Still an issue in beta2.

[stemann]

@KristofferC Can we include #4203 in JuliaLang/julia#58270 ?

[KristofferC]

Thanks for the ping, I forgot about that. It is on the backport branch and should be included in the next 1.12 beta.

[KristofferC]

Confirmed this is working on the backport branch.

[KristofferC]

I had to revert the Pkg bump on 1.12 due to some weird error https://buildkite.com/julialang/julia-release-1-dot-12/builds/113#0196a54e-48d6-4de5-86a4-bf423d4cbbc2. I don't want to delay getting the next beta out and there isn't anything super important in there so I rather just revert it, release a new beta and then deal with that error for the next pre release.

Pkg                                               (2) \|         failed at 2025-05-06T12:19:20.729
--
  | Test Failed at /cache/build/tester-amdci4-13/julialang/julia-release-1-dot-12/julia-4348e89404/share/julia/stdlib/v1.12/Pkg/test/pkg.jl:982
  | Expression: ensure_resolved(Pkg.Types.Context(), Pkg.Types.Manifest(), [p])
  | Expected: Pkg.Types.PkgError("Package PackageSpec(\n  path = test_packages/Example\n  version = *\n) has neither name nor uuid")
  | Thrown: Pkg.Types.PkgError("no active project")
  | no active project
  | Stacktrace:
  | [1] pkgerror(msg::String)
  | @ Pkg.Types /cache/build/tester-amdci4-13/julialang/julia-release-1-dot-12/julia-4348e89404/share/julia/stdlib/v1.12/Pkg/src/Types.jl:68
  | [2] find_project_file(env::Nothing)
  | @ Pkg.Types /cache/build/tester-amdci4-13/julialang/julia-release-1-dot-12/julia-4348e89404/share/julia/stdlib/v1.12/Pkg/src/Types.jl:204
  | [3] Pkg.Types.EnvCache(env::Nothing)
  | @ Pkg.Types /cache/build/tester-amdci4-13/julialang/julia-release-1-dot-12/julia-4348e89404/share/julia/stdlib/v1.12/Pkg/src/Types.jl:382
  | [4] EnvCache
  | @ /cache/build/tester-amdci4-13/julialang/julia-release-1-dot-12/julia-4348e89404/share/julia/stdlib/v1.12/Pkg/src/Types.jl:382 [inlined]
  | [5] Pkg.Types.Context()
  | @ Pkg.Types /cache/build/tester-amdci4-13/julialang/julia-release-1-dot-12/julia-4348e89404/share/julia/stdlib/v1.12/Pkg/src/Types.jl:444
  | [6] top-level scope
  | @ /cache/build/tester-amdci4-13/julialang/julia-release-1-dot-12/julia-4348e89404/share/julia/stdlib/v1.12/Pkg/test/pkg.jl:981
  | [7] macro expansion
  | @ /cache/build/tester-amdci4-13/julialang/julia-release-1-dot-12/julia-4348e89404/share/julia/stdlib/v1.12/Test/src/Test.jl:1771 [inlined]
  | [8] macro expansion
  | @ /cache/build/tester-amdci4-13/julialang/julia-release-1-dot-12/julia-4348e89404/share/julia/stdlib/v1.12/Pkg/test/pkg.jl:982 [inlined]
  | [9] macro expansion
  | @ /cache/build/tester-amdci4-13/julialang/julia-release-1-dot-12/julia-4348e89404/share/julia/stdlib/v1.12/Test/src/Test.jl:773 [inlined]
  | [10] macro expansion
  | @ /cache/build/tester-amdci4-13/julialang/julia-release-1-dot-12/julia-4348e89404/share/julia/stdlib/v1.12/Pkg/test/pkg.jl:982 [inlined]
  |  
  | Error During Test at /cache/build/tester-amdci4-13/julialang/julia-release-1-dot-12/julia-4348e89404/share/julia/stdlib/v1.12/Pkg/test/pkg.jl:985
  | Got exception outside of a @test
  | MethodError: no method matching activate(::Nothing)
  | The function `activate` exists, but no method is defined for this combination of argument types.
  |  
  | Closest candidates are:
  | activate(; temp, shared, prev, io)
  | @ Pkg /cache/build/tester-amdci4-13/julialang/julia-release-1-dot-12/julia-4348e89404/share/julia/stdlib/v1.12/Pkg/src/API.jl:1305
  | activate(!Matched::Function, !Matched::AbstractString)
  | @ Pkg /cache/build/tester-amdci4-13/julialang/julia-release-1-dot-12/julia-4348e89404/share/julia/stdlib/v1.12/Pkg/src/API.jl:1385
  | activate(!Matched::AbstractString; shared, temp, io)
  | @ Pkg /cache/build/tester-amdci4-13/julialang/julia-release-1-dot-12/julia-4348e89404/share/julia/stdlib/v1.12/Pkg/src/API.jl:1341