Ambiguous methods on 1.9

[haberdashPI]

On 1.10 I can correctly install Infiltrator 1.8.1 but:

 4:30pm ❯ julia +1.9
               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.9.4 (2023-11-14)
 _/ |\__'_|_|_|\__'_|  |  Official https://julialang.org/ release
|__/                   |

(@v1.9) pkg> add Infiltrator
   Resolving package versions...
    Updating `~/.julia/environments/v1.9/Project.toml`
  [5903a43b] + Infiltrator v1.8.1
    Updating `~/.julia/environments/v1.9/Manifest.toml`
  [5903a43b] + Infiltrator v1.8.1

(@v1.9) pkg> precompile
Precompiling project...
  ✗ Infiltrator
  0 dependencies successfully precompiled in 1 seconds. 18 already precompiled.

ERROR: The following 1 direct dependency failed to precompile:

Infiltrator [5903a43b-9cc3-4c30-8d17-598619ec4e9b]

Failed to precompile Infiltrator [5903a43b-9cc3-4c30-8d17-598619ec4e9b] to "/Users/davidlittle/.julia/compiled/v1.9/Infiltrator/jl_FMswVp".
ERROR: LoadError: syntax: ambiguous signature in function definition. Try adding a comma if this is a 1-argument anonymous function.
Stacktrace:
 [1] top-level scope
   @ ~/.julia/packages/Infiltrator/YA22i/src/Infiltrator.jl:870
 [2] include
   @ ./Base.jl:457 [inlined]
 [3] 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:2049
 [4] top-level scope
   @ stdin:3
in expression starting at /Users/davidlittle/.julia/packages/Infiltrator/YA22i/src/Infiltrator.jl:870
in expression starting at stdin:3

julia> import Pkg; Pkg.precompile()
Precompiling project...
  ✗ Infiltrator
  0 dependencies successfully precompiled in 1 seconds. 18 already precompiled.

ERROR: The following 1 direct dependency failed to precompile:

Infiltrator [5903a43b-9cc3-4c30-8d17-598619ec4e9b]

Failed to precompile Infiltrator [5903a43b-9cc3-4c30-8d17-598619ec4e9b] to "/Users/davidlittle/.julia/compiled/v1.9/Infiltrator/jl_8jyakb".
ERROR: LoadError: syntax: ambiguous signature in function definition. Try adding a comma if this is a 1-argument anonymous function.
Stacktrace:
 [1] top-level scope
   @ ~/.julia/packages/Infiltrator/YA22i/src/Infiltrator.jl:870
 [2] include
   @ ./Base.jl:457 [inlined]
 [3] 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:2049
 [4] top-level scope
   @ stdin:3
in expression starting at /Users/davidlittle/.julia/packages/Infiltrator/YA22i/src/Infiltrator.jl:870
in expression starting at stdin:3
Stacktrace:
 [1] pkgerror(msg::String)
   @ Pkg.Types ~/.julia/juliaup/julia-1.9.4+0.aarch64.apple.darwin14/share/julia/stdlib/v1.9/Pkg/src/Types.jl:69
 [2] precompile(ctx::Pkg.Types.Context, pkgs::Vector{Pkg.Types.PackageSpec}; internal_call::Bool, strict::Bool, warn_loaded::Bool, already_instantiated::Bool, timing::Bool, kwargs::Base.Pairs{Symbol, Base.TTY, Tuple{Symbol}, NamedTuple{(:io,), Tuple{Base.TTY}}})
   @ Pkg.API ~/.julia/juliaup/julia-1.9.4+0.aarch64.apple.darwin14/share/julia/stdlib/v1.9/Pkg/src/API.jl:1619
 [3] precompile(pkgs::Vector{Pkg.Types.PackageSpec}; io::Base.TTY, kwargs::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
   @ Pkg.API ~/.julia/juliaup/julia-1.9.4+0.aarch64.apple.darwin14/share/julia/stdlib/v1.9/Pkg/src/API.jl:156
 [4] precompile(pkgs::Vector{Pkg.Types.PackageSpec})
   @ Pkg.API ~/.julia/juliaup/julia-1.9.4+0.aarch64.apple.darwin14/share/julia/stdlib/v1.9/Pkg/src/API.jl:145
 [5] precompile(; name::Nothing, uuid::Nothing, version::Nothing, url::Nothing, rev::Nothing, path::Nothing, mode::Pkg.Types.PackageMode, subdir::Nothing, kwargs::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
   @ Pkg.API ~/.julia/juliaup/julia-1.9.4+0.aarch64.apple.darwin14/share/julia/stdlib/v1.9/Pkg/src/API.jl:171
 [6] precompile()
   @ Pkg.API ~/.julia/juliaup/julia-1.9.4+0.aarch64.apple.darwin14/share/julia/stdlib/v1.9/Pkg/src/API.jl:162
 [7] top-level scope
   @ REPL[3]:1

julia>

[pfitzseb]

Oops, that's what I get for pushing an innocuous looking change directly to master...

Fixed by e23d487.