Error writing to JLD2 file with Julia nightly

[simonp0420]

I pushed a commit to my package PSSFSS yesterday and saw that it was failing a CI test involving writing to a JLD2 file. I downloaded the Julia nightly and was able to reproduce the following error at the REPL:

~/.../packages/PSSFSS >>> julia-latest --project=.                                                                               
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.7.0-DEV.1173 (2021-05-26)
 _/ |\__'_|_|_|\__'_|  |  Commit ed5cc4ec67 (0 days old master)
|__/                   |

julia> using PSSFSS, JLD2

julia> fname = tempname()
"/tmp/jl_WKY7OV"

julia> sh = rectstrip(Lx=1,Ly=1,Px=1.5,Py=1.5,Nx=3,Ny=3,units=cm)
RWGSheet: style=rectstrip, class=J, 16 nodes, 33 edges, 18 faces

julia> file = jldopen(fname, "w")
JLDFile /tmp/jl_WKY7OV (read/write)
  (no datasets)

julia> file["sheet"] = sh
ERROR: type DataType has no field mutable
Stacktrace:
  [1] getproperty(x::Type, f::Symbol)
    @ Base ./Base.jl:28
  [2] hasfielddata(T::Any, encounteredtypes::Vector{DataType})
    @ JLD2 ~/.julia/packages/JLD2/JlkeJ/src/data/writing_datatypes.jl:24
  [3] hasdata(T::DataType, encounteredtypes::Vector{DataType})
    @ JLD2 ~/.julia/packages/JLD2/JlkeJ/src/data/writing_datatypes.jl:32
  [4] hasdata
    @ ~/.julia/packages/JLD2/JlkeJ/src/data/writing_datatypes.jl:30 [inlined]
  [5] odr(#unused#::Type{RWGSheet})
    @ JLD2 ~/.julia/packages/JLD2/JlkeJ/src/data/writing_datatypes.jl:563
  [6] objodr
    @ ~/.julia/packages/JLD2/JlkeJ/src/data/writing_datatypes.jl:109 [inlined]
  [7] write_dataset
    @ ~/.julia/packages/JLD2/JlkeJ/src/datasets.jl:518 [inlined]
  [8] write(g::JLD2.Group{JLD2.JLDFile{JLD2.MmapIO}}, name::String, obj::RWGSheet, wsession::JLD2.JLDWriteSession{Dict{UInt64, JLD2.RelOffset}}; compress::Nothing)
    @ JLD2 ~/.julia/packages/JLD2/JlkeJ/src/compression.jl:87
  [9] write(g::JLD2.Group{JLD2.JLDFile{JLD2.MmapIO}}, name::String, obj::RWGSheet, wsession::JLD2.JLDWriteSession{Dict{UInt64, JLD2.RelOffset}}) (repeats 2 times)
    @ JLD2 ~/.julia/packages/JLD2/JlkeJ/src/compression.jl:76
 [10] setindex!(g::JLD2.Group{JLD2.JLDFile{JLD2.MmapIO}}, obj::RWGSheet, name::String)
    @ JLD2 ~/.julia/packages/JLD2/JlkeJ/src/groups.jl:124
 [11] setindex!(f::JLD2.JLDFile{JLD2.MmapIO}, obj::RWGSheet, name::String)
    @ JLD2 ~/.julia/packages/JLD2/JlkeJ/src/JLD2.jl:380
 [12] top-level scope
    @ REPL[4]:1

Here is my package environment:

(PSSFSS) pkg> status
     Project PSSFSS v0.1.2
      Status `/run/timeshift/backup/simonp_win/julia/packages/PSSFSS/Project.toml`
  [7a1cc6ca] FFTW v1.4.1
  [5789e2e9] FileIO v1.9.0
  [033835bb] JLD2 v0.4.7
  [e6f89c97] LoggingExtras v0.4.6
  [b8a86587] NearestNeighbors v0.4.8
  [6fe1bfb0] OffsetArrays v1.9.0
  [92933f4c] ProgressMeter v1.6.2
  [3cdcf5f2] RecipesBase v1.1.1
  [189a3867] Reexport v1.0.0 `https://github.com/simonster/Reexport.jl.git#master`
  [90137ffa] StaticArrays v1.2.1
  [f7e6ffb2] Triangulate v1.0.2
  [1986cc42] Unitful v1.7.0
  [ade2ca70] Dates
  [8bb1440f] DelimitedFiles
  [37e2e46d] LinearAlgebra
  [56ddb016] Logging
  [de0858da] Printf
  [10745b16] Statistics

I'm not even sure if I should worry about this error. Should I just remove the nightly tests from my CI?
Thanks,
Peter

[BoundaryValueProblems]

I have exactly the same question. The CI of my package failed due to JLD2 on Julia nightly.

[JonasIsensee]

Hi @simonp0420 & @BoundaryValueProblems
JLD2 currently doesn't test on nightly.

Your errors message looks like the fields / field names of DataTypes changed
on nightly.
Here's the relevant bit
JuliaLang/julia#40741

To fix this, we should do the following:

• Replace every occurrence of T.mutable in JLD2 with ismutabletype(T)
• To make this compatible with current julia versions add somewhere:

@static if VERSION < v"1.7"
  # Borrowed from julia base
  function ismutabletype(@nospecialize(t::Type))
      t = unwrap_unionall(t)
      # TODO: what to do for `Union`?
      return isa(t, DataType) && t.name.mutable
  end
end

[simonp0420]

Thanks for taking a look at this. I guess I'll keep on eye on JLD2 and update the compatibility requirement for my package once the fix is implemented.

[simonp0420]

I'm still getting the error on 1.7 with JLD2 at version 0.4.8:

               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.7.0-DEV.1225 (2021-06-01)
 _/ |\__'_|_|_|\__'_|  |  Commit cfd940e9eb (1 day old master)
|__/                   |

(@v1.7) pkg> activate .
  Activating project at `/run/timeshift/backup/simonp_win/julia/packages/PSSFSS`

(PSSFSS) pkg> test
     Testing PSSFSS
      Status `/tmp/jl_b5aIjn/Project.toml`
  [667455a9] Cubature v1.5.1
  [7a1cc6ca] FFTW v1.4.1
  [5789e2e9] FileIO v1.9.1
  [19dc6840] HCubature v1.5.0
  [033835bb] JLD2 v0.4.8
  [e6f89c97] LoggingExtras v0.4.6
  [b8a86587] NearestNeighbors v0.4.8
  [6fe1bfb0] OffsetArrays v1.9.2
  [6b20a5d4] PSSFSS v0.1.3 `/run/timeshift/backup/simonp_win/julia/packages/PSSFSS`
  [92933f4c] ProgressMeter v1.7.1
  [3cdcf5f2] RecipesBase v1.1.1
  [189a3867] Reexport v1.0.0 `https://github.com/simonster/Reexport.jl.git#master`
  [1bc83da4] SafeTestsets v0.0.1
  [90137ffa] StaticArrays v1.2.2
  [f7e6ffb2] Triangulate v1.0.2
  [1986cc42] Unitful v1.8.0
  [ade2ca70] Dates `@stdlib/Dates`
  [8bb1440f] DelimitedFiles `@stdlib/DelimitedFiles`
  [37e2e46d] LinearAlgebra `@stdlib/LinearAlgebra`
  [56ddb016] Logging `@stdlib/Logging`
  [de0858da] Printf `@stdlib/Printf`
  [10745b16] Statistics `@stdlib/Statistics`
  [8dfed614] Test `@stdlib/Test`
      Status `/tmp/jl_b5aIjn/Manifest.toml`
  [621f4979] AbstractFFTs v1.0.1
  [79e6a3ab] Adapt v3.3.1
  [861a8166] Combinatorics v1.0.2
  [34da2185] Compat v3.30.0
  [187b0558] ConstructionBase v1.2.1
  [667455a9] Cubature v1.5.1
  [864edb3b] DataStructures v0.18.9
  [b4f34e82] Distances v0.10.3
  [ffbed154] DocStringExtensions v0.8.4
  [7a1cc6ca] FFTW v1.4.1
  [5789e2e9] FileIO v1.9.1
  [19dc6840] HCubature v1.5.0
  [033835bb] JLD2 v0.4.8
  [692b3bcd] JLLWrappers v1.3.0
  [e6f89c97] LoggingExtras v0.4.6
  [1914dd2f] MacroTools v0.5.6
  [b8a86587] NearestNeighbors v0.4.8
  [6fe1bfb0] OffsetArrays v1.9.2
  [bac558e1] OrderedCollections v1.4.1
  [6b20a5d4] PSSFSS v0.1.3 `/run/timeshift/backup/simonp_win/julia/packages/PSSFSS`
  [21216c6a] Preferences v1.2.2
  [92933f4c] ProgressMeter v1.7.1
  [1fd47b50] QuadGK v2.4.1
  [3cdcf5f2] RecipesBase v1.1.1
  [189a3867] Reexport v1.0.0 `https://github.com/simonster/Reexport.jl.git#master`
  [ae029012] Requires v1.1.3
  [1bc83da4] SafeTestsets v0.0.1
  [90137ffa] StaticArrays v1.2.2
  [82ae8749] StatsAPI v1.0.0
  [3bb67fe8] TranscodingStreams v0.9.5
  [f7e6ffb2] Triangulate v1.0.2
  [1986cc42] Unitful v1.8.0
  [7bc98958] Cubature_jll v1.0.4+0
  [f5851436] FFTW_jll v3.3.9+7
  [1d5cc7b8] IntelOpenMP_jll v2018.0.3+2
  [856f044c] MKL_jll v2021.1.1+1
  [5639c1d2] Triangle_jll v1.6.0+0
  [0dad84c5] ArgTools `@stdlib/ArgTools`
  [56f22d72] Artifacts `@stdlib/Artifacts`
  [2a0f44e3] Base64 `@stdlib/Base64`
  [ade2ca70] Dates `@stdlib/Dates`
  [8bb1440f] DelimitedFiles `@stdlib/DelimitedFiles`
  [8ba89e20] Distributed `@stdlib/Distributed`
  [f43a241f] Downloads `@stdlib/Downloads`
  [b77e0a4c] InteractiveUtils `@stdlib/InteractiveUtils`
  [4af54fe1] LazyArtifacts `@stdlib/LazyArtifacts`
  [b27032c2] LibCURL `@stdlib/LibCURL`
  [76f85450] LibGit2 `@stdlib/LibGit2`
  [8f399da3] Libdl `@stdlib/Libdl`
  [37e2e46d] LinearAlgebra `@stdlib/LinearAlgebra`
  [56ddb016] Logging `@stdlib/Logging`
  [d6f4376e] Markdown `@stdlib/Markdown`
  [a63ad114] Mmap `@stdlib/Mmap`
  [ca575930] NetworkOptions `@stdlib/NetworkOptions`
  [44cfe95a] Pkg `@stdlib/Pkg`
  [de0858da] Printf `@stdlib/Printf`
  [3fa0cd96] REPL `@stdlib/REPL`
  [9a3f8284] Random `@stdlib/Random`
  [ea8e919c] SHA `@stdlib/SHA`
  [9e88b42a] Serialization `@stdlib/Serialization`
  [1a1011a3] SharedArrays `@stdlib/SharedArrays`
  [6462fe0b] Sockets `@stdlib/Sockets`
  [2f01184e] SparseArrays `@stdlib/SparseArrays`
  [10745b16] Statistics `@stdlib/Statistics`
  [fa267f1f] TOML `@stdlib/TOML`
  [a4e569a6] Tar `@stdlib/Tar`
  [8dfed614] Test `@stdlib/Test`
  [cf7118a7] UUIDs `@stdlib/UUIDs`
  [4ec0a83e] Unicode `@stdlib/Unicode`
  [e66e0078] CompilerSupportLibraries_jll `@stdlib/CompilerSupportLibraries_jll`
  [deac9b47] LibCURL_jll `@stdlib/LibCURL_jll`
  [29816b5a] LibSSH2_jll `@stdlib/LibSSH2_jll`
  [c8ffd9c3] MbedTLS_jll `@stdlib/MbedTLS_jll`
  [14a3606d] MozillaCACerts_jll `@stdlib/MozillaCACerts_jll`
  [4536629a] OpenBLAS_jll `@stdlib/OpenBLAS_jll`
  [83775a58] Zlib_jll `@stdlib/Zlib_jll`
  [8e850b90] libblastrampoline_jll `@stdlib/libblastrampoline_jll`
  [8e850ede] nghttp2_jll `@stdlib/nghttp2_jll`
  [3f19e933] p7zip_jll `@stdlib/p7zip_jll`
Precompiling project...
  43 dependencies successfully precompiled in 17 seconds
     Testing Running tests...
Test Summary: | Pass  Total
Rings Tests   |    5      5
read and write: Error During Test at /run/timeshift/backup/simonp_win/julia/packages/PSSFSS/test/RWGSheet_test.jl:83
  Got exception outside of a @test
  type DataType has no field mutable
  Stacktrace:
    [1] getproperty(x::Type, f::Symbol)
      @ Base ./Base.jl:28
    [2] ismutabletype(x::DataType)
      @ JLD2 ~/.julia/packages/JLD2/F7wiE/src/datasets.jl:515
    [3] hasfielddata(T::Any, encounteredtypes::Vector{DataType})
      @ JLD2 ~/.julia/packages/JLD2/F7wiE/src/data/writing_datatypes.jl:24
    [4] hasdata(T::DataType, encounteredtypes::Vector{DataType})
      @ JLD2 ~/.julia/packages/JLD2/F7wiE/src/data/writing_datatypes.jl:32
    [5] hasdata
      @ ~/.julia/packages/JLD2/F7wiE/src/data/writing_datatypes.jl:30 [inlined]
    [6] odr(#unused#::Type{PSSFSS.Sheets.RWGSheet})
      @ JLD2 ~/.julia/packages/JLD2/F7wiE/src/data/writing_datatypes.jl:563
    [7] objodr
      @ ~/.julia/packages/JLD2/F7wiE/src/data/writing_datatypes.jl:109 [inlined]
    [8] write_dataset
      @ ~/.julia/packages/JLD2/F7wiE/src/datasets.jl:518 [inlined]
    [9] write(g::JLD2.Group{JLD2.JLDFile{JLD2.MmapIO}}, name::String, obj::PSSFSS.Sheets.RWGSheet, wsession::JLD2.JLDWriteSession{Dict{UInt64, JLD2.RelOffset}}; compress::Nothing)
      @ JLD2 ~/.julia/packages/JLD2/F7wiE/src/compression.jl:87
   [10] write(g::JLD2.Group{JLD2.JLDFile{JLD2.MmapIO}}, name::String, obj::PSSFSS.Sheets.RWGSheet, wsession::JLD2.JLDWriteSession{Dict{UInt64, JLD2.RelOffset}}) (repeats 2 times)
      @ JLD2 ~/.julia/packages/JLD2/F7wiE/src/compression.jl:76
   [11] setindex!(g::JLD2.Group{JLD2.JLDFile{JLD2.MmapIO}}, obj::PSSFSS.Sheets.RWGSheet, name::String)
      @ JLD2 ~/.julia/packages/JLD2/F7wiE/src/groups.jl:124
   [12] setindex!(f::JLD2.JLDFile{JLD2.MmapIO}, obj::PSSFSS.Sheets.RWGSheet, name::String)
      @ JLD2 ~/.julia/packages/JLD2/F7wiE/src/JLD2.jl:380
   [13] (::PSSFSS.Sheets.var"#5#6"{PSSFSS.Sheets.RWGSheet})(file::JLD2.JLDFile{JLD2.MmapIO})
      @ PSSFSS.Sheets /run/timeshift/backup/simonp_win/julia/packages/PSSFSS/src/Sheets.jl:115
   [14] jldopen(::PSSFSS.Sheets.var"#5#6"{PSSFSS.Sheets.RWGSheet}, ::String, ::Vararg{String}; kws::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
      @ JLD2 ~/.julia/packages/JLD2/F7wiE/src/loadsave.jl:4
   [15] jldopen(::Function, ::String, ::String)
      @ JLD2 ~/.julia/packages/JLD2/F7wiE/src/loadsave.jl:2
   [16] write_sheet_data(filename::String, sheet::PSSFSS.Sheets.RWGSheet)
      @ PSSFSS.Sheets /run/timeshift/backup/simonp_win/julia/packages/PSSFSS/src/Sheets.jl:114
   [17] macro expansion
      @ /run/timeshift/backup/simonp_win/julia/packages/PSSFSS/test/RWGSheet_test.jl:85 [inlined]
   [18] macro expansion
      @ /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.7/Test/src/Test.jl:1282 [inlined]
   [19] top-level scope
      @ /run/timeshift/backup/simonp_win/julia/packages/PSSFSS/test/RWGSheet_test.jl:84
   [20] include(mod::Module, _path::String)
      @ Base ./Base.jl:389
   [21] include(x::String)
      @ Main.##272 ~/.julia/packages/SafeTestsets/A83XK/src/SafeTestsets.jl:23
   [22] macro expansion
      @ /run/timeshift/backup/simonp_win/julia/packages/PSSFSS/test/runtests.jl:5 [inlined]
   [23] macro expansion
      @ /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.7/Test/src/Test.jl:1282 [inlined]
   [24] top-level scope
      @ /run/timeshift/backup/simonp_win/julia/packages/PSSFSS/test/runtests.jl:5
   [25] eval(m::Module, e::Any)
      @ Core ./boot.jl:369
   [26] top-level scope
      @ ~/.julia/packages/SafeTestsets/A83XK/src/SafeTestsets.jl:23
   [27] include(fname::String)
      @ Base.MainInclude ./client.jl:451
   [28] top-level scope
      @ none:6
   [29] eval
      @ ./boot.jl:369 [inlined]
   [30] exec_options(opts::Base.JLOptions)
      @ Base ./client.jl:268
   [31] _start()
      @ Base ./client.jl:495
Test Summary:      | Pass  Error  Total
RWGSheet Tests     |   29      1     30
  recttri          |    9             9
  combine right    |    5             5
  combine top      |    5             5
  combine topright |    5             5
  combine disjoint |    5             5
  read and write   |           1      1
ERROR: LoadError: Some tests did not pass: 29 passed, 0 failed, 1 errored, 0 broken.
in expression starting at /run/timeshift/backup/simonp_win/julia/packages/PSSFSS/test/runtests.jl:5
ERROR: Package PSSFSS errored during testing

[JonasIsensee]

Yeah, I only realized it after the fact, that

v"1.7.0-DEV" < v"1.7" ==true

I'm not sure whether there is any way at all to fix this for nightly (before 1.7 comea out)

[simonp0420]

How about testing against v"1.7.0-A" instead of v"1.7"?

julia> ver = v"1.7.0-A"
v"1.7.0-A"

julia> testvec = [v"1.7.0-beta", v"1.7.0-rc1", v"1.7.0-dev", v"1.7.0", v"1.7",
                v"1.7.0-BETA", v"1.7.0-RC1", v"1.7.0-DEV", v"1.7.0-dev.1225", 
                v"1.7.0-DEV.1225", v"1.7.1", v"1.8"]
12-element Vector{VersionNumber}:
 v"1.7.0-beta"
 v"1.7.0-rc1"
 ⋮
 v"1.7.1"
 v"1.8.0"

julia> any(isless.(testvec,ver))
false

[JonasIsensee]

Thanks ! I didn't know about this.
Things should work again soon. I just registered 0.4.9

[simonp0420]

0.4.9 did the trick! Thanks again for your hard work on this essential piece of the Julia ecosystem.

[BoundaryValueProblems]

@JonasIsensee I updated the Project.toml's compat section as JLD2 = "0.4.9" in my own repo, but I still get errors in my runtests.jl when it tries to load some JLD2 files under the Julia nightly. I don't have any problems with Julia 1.5 and 1.6 tests. Beyond Project.toml file, do I need to modify or revise any other files so that the Julia nightly test passes through like Julia 1.5 and 1.6?

[BoundaryValueProblems]

Here is the error I got. The error message is slightly different from what @simonp0420 initially reported.
Instead of type DataType has no field mutable, I got the message type DataType has no field ninitialized

Run julia-actions/julia-runtest@v1
[ Info: The General registry already exists locally
     Testing MultiscaleGraphSignalTransforms
      Status `/private/var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/jl_guq41P/Project.toml`
  [7d9fca2a] Arpack v0.5.2
  [77b51b56] AverageShiftedHistograms v0.8.6
  [e2554f3b] Clp v0.8.4
  [aaaa29a8] Clustering v0.14.2
  [b4f34e82] Distances v0.10.3
  [31c24e10] Distributions v0.25.3
  [4138dd39] JLD v0.12.3
  [033835bb] JLD2 v0.4.9
  [4076af6c] JuMP v0.21.8
  [093fc24a] LightGraphs v1.3.5
        |
        | (omitting many other packages here.)
        |
     Testing Running tests...
1. Testing basic GHWT functions
1. Testing basic GHWT functions: Error During Test at /Users/runner/work/MultiscaleGraphSignalTransforms.jl/MultiscaleGraphSignalTransforms.jl/test/runtests.jl:8
  Got exception outside of a @test
  type DataType has no field ninitialized
  Stacktrace:
    [1] getproperty
      @ ./Base.jl:37 [inlined]
    [2] odr(#unused#::Type{Pair{String, Any}})
      @ JLD2 ~/.julia/packages/JLD2/vqQIU/src/data/writing_datatypes.jl:578
    [3] constructrr(f::JLD2.JLDFile{JLD2.MmapIO}, T::DataType, dt::JLD2.CompoundDatatype, attrs::Vector{JLD2.ReadAttribute}, hard_failure::Bool)
      @ JLD2 ~/.julia/packages/JLD2/vqQIU/src/data/reconstructing_datatypes.jl:199
    [4] constructrr(f::JLD2.JLDFile{JLD2.MmapIO}, T::DataType, dt::JLD2.CompoundDatatype, attrs::Vector{JLD2.ReadAttribute})
      @ JLD2 ~/.julia/packages/JLD2/vqQIU/src/data/reconstructing_datatypes.jl:121
    [5] jltype(f::JLD2.JLDFile{JLD2.MmapIO}, cdt::JLD2.CommittedDatatype)
      @ JLD2 ~/.julia/packages/JLD2/vqQIU/src/data/reconstructing_datatypes.jl:73
    [6] types_from_refs(f::JLD2.JLDFile{JLD2.MmapIO}, ptr::Ptr{Nothing})
      @ JLD2 ~/.julia/packages/JLD2/vqQIU/src/data/reconstructing_datatypes.jl:295
    [7] jlconvert(rr::JLD2.ReadRepresentation{DataType, JLD2.OnDiskRepresentation{(0, 16), Tuple{String, Vector{Any}}, Tuple{JLD2.Vlen{String}, JLD2.Vlen{JLD2.RelOffset}}}()}, f::JLD2.JLDFile{JLD2.MmapIO}, ptr::Ptr{Nothing}, header_offset::JLD2.RelOffset)
      @ JLD2 ~/.julia/packages/JLD2/vqQIU/src/data/reconstructing_datatypes.jl:311
    [8] read_scalar
      @ ~/.julia/packages/JLD2/vqQIU/src/dataio.jl:37 [inlined]
    [9] read_data(f::JLD2.JLDFile{JLD2.MmapIO}, rr::JLD2.ReadRepresentation{DataType, JLD2.OnDiskRepresentation{(0, 16), Tuple{String, Vector{Any}}, Tuple{JLD2.Vlen{String}, JLD2.Vlen{JLD2.RelOffset}}}()}, read_dataspace::Tuple{JLD2.ReadDataspace, JLD2.RelOffset, Int64, UInt16}, attributes::Nothing)
      @ JLD2 ~/.julia/packages/JLD2/vqQIU/src/datasets.jl:170
   [10] read_data(f::JLD2.JLDFile{JLD2.MmapIO}, dataspace::JLD2.ReadDataspace, datatype_class::UInt8, datatype_offset::Int64, data_offset::Int64, data_length::Int64, filter_id::UInt16, header_offset::JLD2.RelOffset, attributes::Nothing)
      @ JLD2 ~/.julia/packages/JLD2/vqQIU/src/datasets.jl:149
   [11] read_data(f::JLD2.JLDFile{JLD2.MmapIO}, dataspace::JLD2.ReadDataspace, datatype_class::UInt8, datatype_offset::Int64, data_offset::Int64, data_length::Int64, filter_id::UInt16) (repeats 3 times)
      @ JLD2 ~/.julia/packages/JLD2/vqQIU/src/datasets.jl:144
   [12] read_attr_data(f::JLD2.JLDFile{JLD2.MmapIO}, attr::JLD2.ReadAttribute)
      @ JLD2 ~/.julia/packages/JLD2/vqQIU/src/datasets.jl:102
   [13] jltype(f::JLD2.JLDFile{JLD2.MmapIO}, cdt::JLD2.CommittedDatatype)
      @ JLD2 ~/.julia/packages/JLD2/vqQIU/src/data/reconstructing_datatypes.jl:60
   [14] read_data(f::JLD2.JLDFile{JLD2.MmapIO}, dataspace::JLD2.ReadDataspace, datatype_class::UInt8, datatype_offset::Int64, data_offset::Int64, data_length::Int64, filter_id::UInt16, header_offset::JLD2.RelOffset, attributes::Vector{JLD2.ReadAttribute})
      @ JLD2 ~/.julia/packages/JLD2/vqQIU/src/datasets.jl:146
   [15] load_dataset(f::JLD2.JLDFile{JLD2.MmapIO}, offset::JLD2.RelOffset)
      @ JLD2 ~/.julia/packages/JLD2/vqQIU/src/datasets.jl:92
   [16] getindex(g::JLD2.Group{JLD2.JLDFile{JLD2.MmapIO}}, name::String)
      @ JLD2 ~/.julia/packages/JLD2/vqQIU/src/groups.jl:108
   [17] read(f::JLD2.JLDFile{JLD2.MmapIO}, name::String)
      @ JLD2 ~/.julia/packages/JLD2/vqQIU/src/JLD2.jl:375
   [18] #1
      @ ~/.julia/packages/JLD2/vqQIU/src/loadsave.jl:145 [inlined]
   [19] jldopen(f::var"#1#7", args::String; kws::Base.Pairs{Symbol, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
      @ JLD2 ~/.julia/packages/JLD2/vqQIU/src/loadsave.jl:4
   [20] jldopen(f::Function, args::String)
      @ JLD2 ~/.julia/packages/JLD2/vqQIU/src/loadsave.jl:2
   [21] macro expansion
      @ ~/.julia/packages/JLD2/vqQIU/src/loadsave.jl:144 [inlined]
   [22] macro expansion
      @ ~/work/MultiscaleGraphSignalTransforms.jl/MultiscaleGraphSignalTransforms.jl/test/runtests.jl:10 [inlined]
   [23] macro expansion
      @ /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.8/Test/src/Test.jl:1282 [inlined]
   [24] macro expansion
      @ ~/work/MultiscaleGraphSignalTransforms.jl/MultiscaleGraphSignalTransforms.jl/test/runtests.jl:9 [inlined]
   [25] macro expansion
      @ /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.8/Test/src/Test.jl:1282 [inlined]
   [26] top-level scope
      @ ~/work/MultiscaleGraphSignalTransforms.jl/MultiscaleGraphSignalTransforms.jl/test/runtests.jl:8
   [27] include(fname::String)
      @ Base.MainInclude ./client.jl:451
   [28] top-level scope
      @ none:6
   [29] eval
      @ ./boot.jl:373 [inlined]
   [30] exec_options(opts::Base.JLOptions)
      @ Base ./client.jl:268
   [31] _start()
      @ Base ./client.jl:495

[JonasIsensee]

@BoundaryValueProblems

..... Yeah, I'm sorry. There's nothing that you can do to fix it on your side. For JLD2 to work it needs to use a lot of julia internals and it seems that those are getting changed very frequently now.
First it was the mutable field and now ninitialized