precompilation failure of 1.6.5 in 1.10 - require_one_based_indexing

[lmiq]

Apparently this should not error, because StaticArrays is set to be compatible with Juila 1.6, but this is causing issues in CI Downgrade tests:

% julia +1.10 --startup-file=no
               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.10.10 (2025-06-27)
 _/ |\__'_|_|_|\__'_|  |  Official https://julialang.org/ release
|__/                   |

(@v1.10) pkg> activate --temp
  Activating new project at `/tmp/jl_u3IyTC`

(jl_u3IyTC) pkg> add StaticArrays@1.6.5
   Resolving package versions...
   Installed StaticArrays ─ v1.6.5
    Updating `/tmp/jl_u3IyTC/Project.toml`
⌃ [90137ffa] + StaticArrays v1.6.5
    Updating `/tmp/jl_u3IyTC/Manifest.toml`
⌃ [90137ffa] + StaticArrays v1.6.5
  [1e83bf80] + StaticArraysCore v1.4.4
  [56f22d72] + Artifacts
  [8f399da3] + Libdl
  [37e2e46d] + LinearAlgebra
  [9a3f8284] + Random
  [ea8e919c] + SHA v0.7.0
  [e66e0078] + CompilerSupportLibraries_jll v1.1.1+0
  [4536629a] + OpenBLAS_jll v0.3.23+4
  [8e850b90] + libblastrampoline_jll v5.11.0+0
        Info Packages marked with ⌃ have new versions available and may be upgradable.
  ✗ StaticArrays
Precompiling packages finished.
  1 dependency successfully precompiled in 2 seconds
  1 dependency errored.
  For a report of the errors see `julia> err`. To retry use `pkg> precompile`

julia> err
PkgPrecompileError: The following 1 direct dependency failed to precompile:

StaticArrays 

Failed to precompile StaticArrays [90137ffa-7385-5640-81b9-e52037218182] to "/home/leandro/.julia/compiled/v1.10/StaticArrays/jl_1zjuS7".
ERROR: LoadError: UndefVarError: `require_one_based_indexing` not defined
Stacktrace:
 [1] include
   @ ./Base.jl:495 [inlined]
 [2] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt128}}, source::Nothing)
   @ Base ./loading.jl:2292
 [3] top-level scope
   @ stdin:4
in expression starting at /home/leandro/.julia/packages/StaticArrays/cZ1ET/src/StaticArrays.jl:1
in expression starting at stdin:

julia> 
``

[lmiq]

This was fixed by #1279

Then probably nothing has to be done. But I find strange that all tests were passing with 1.6.5 before, I don't understand what could happen that the downgrade tests started failing at some point.

[lmiq]

The issue here was that the version of StaticArraysCore that stoped exporting require_one_based_indexing should have been a breaking release. Because it was relesed in a non-breaking way, StaticArrays uses it with versions of Julia that do not export it either, causing the precompiilation to fail.