Printf regression with pointers that cannot be represented as signed Int

[maleadt]

   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.6.1-pre.1 (2021-04-01)
 _/ |\__'_|_|_|\__'_|  |  release-1.6/9283b6c7a7 (fork: 293 commits, 114 days)
|__/                   |

julia> using Printf

julia> @printf "%p" 0xfffffffffffe0000
ERROR: InexactError: check_top_bit(Int64, 18446744073709420544)
Stacktrace:
 [1] throw_inexacterror(f::Symbol, #unused#::Type{Int64}, val::UInt64)
   @ Core ./boot.jl:602
 [2] check_top_bit
   @ ./boot.jl:616 [inlined]
 [3] toInt64
   @ ./boot.jl:677 [inlined]
 [4] Int64
   @ ./boot.jl:752 [inlined]
 [5] fmt(buf::Vector{UInt8}, pos::Int64, arg::UInt64, spec::Printf.Spec{Val{'p'}})
   @ Printf /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/Printf/src/Printf.jl:550
 [6] format
   @ /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/Printf/src/Printf.jl:698 [inlined]
 [7] format(io::Base.TTY, f::Printf.Format{Base.CodeUnits{UInt8, String}, Tuple{Printf.Spec{Val{'p'}}}}, args::UInt64)
   @ Printf /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/Printf/src/Printf.jl:781
 [8] top-level scope
   @ REPL[2]:1

vs

   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.5.3 (2020-11-09)
 _/ |\__'_|_|_|\__'_|  |  Official https://julialang.org/ release
|__/                   |

julia> using Printf

julia> @printf "%p" 0xfffffffffffe0000
0xfffffffffffe0000

[quinnj]

Fix is up: #40319