Errors with Julia master

[zickgraf]

There are errors with Julia master again, for example see https://github.com/oscar-system/GAP.jl/actions/runs/5420827874/jobs/9855474232, https://github.com/homalg-project/CapAndHomalg.jl/actions/runs/5418211207/jobs/9850070620, https://github.com/homalg-project/FinSetsForCAP/actions/runs/5419267586/jobs/9852192114 (scroll up a bit).

All those errors are different, but since the have appeared at the same time, I guess they have the same cause.

Locally, I get the following error:

Click to expand

$ ./julia 
               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.10.0-DEV.1602 (2023-06-29)
 _/ |\__'_|_|_|\__'_|  |  Commit 6d400e4f20* (0 days old master)
|__/                   |

julia> using GAP
Precompiling GAP
  Progress [=================================>       ]  9/11
  ◐ GAP_pkg_juliainterface_jll

[ Info: Precompiling GAP [c863536a-3901-11e9-33e7-d5cd0df7b904]
ERROR: LoadError: ArgumentError: cannot convert NULL to string
Stacktrace:
  [1] unsafe_string(p::Ptr{UInt8})
    @ Base ./strings/string.jl:84 [inlined]
  [2] compilecache_path(pkg::Base.PkgId, prefs_hash::UInt64; project::String)
    @ Base ./loading.jl:2237
  [3] compilecache_pidfile_path(pkg::Base.PkgId)
    @ Base ./loading.jl:2829 [inlined]
  [4] maybe_cachefile_lock(f::Base.var"#964#965"{Base.PkgId}, pkg::Base.PkgId, srcpath::String; stale_age::Int64)
    @ Base ./loading.jl:2838
  [5] maybe_cachefile_lock(f::Base.var"#964#965"{Base.PkgId}, pkg::Base.PkgId, srcpath::String)
    @ Base ./loading.jl:2836 [inlined]
  [6] _require(pkg::Base.PkgId, env::String)
    @ Base ./loading.jl:1905
  [7] __require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base ./loading.jl:1747
  [8] invoke_in_world(::UInt64, ::typeof(Base.__require_prelocked), ::Base.PkgId, ::String; kwargs::@Kwargs{})
    @ Base ./essentials.jl:901 [inlined]
  [9] invoke_in_world(::UInt64, ::typeof(Base.__require_prelocked), ::Base.PkgId, ::String)
    @ Base ./essentials.jl:898 [inlined]
 [10] _require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base ./loading.jl:1738
 [11] macro expansion
    @ Base ./loading.jl:1725 [inlined]
 [12] macro expansion
    @ Base ./lock.jl:267 [inlined]
 [13] __require(into::Module, mod::Symbol)
    @ Base ./loading.jl:1688
 [14] invoke_in_world(::UInt64, ::typeof(Base.__require), ::Module, ::Symbol; kwargs::@Kwargs{})
    @ Base ./essentials.jl:901 [inlined]
 [15] invoke_in_world(::UInt64, ::typeof(Base.__require), ::Module, ::Symbol)
    @ Base ./essentials.jl:898 [inlined]
 [16] require(into::Module, mod::Symbol)
    @ Base ./loading.jl:1681
 [17] include(mod::Module, _path::String)
    @ Base ./Base.jl:489
 [18] include(x::String)
    @ GAP ~/.julia/packages/GAP/ydeRk/src/GAP.jl:7
 [19] top-level scope
    @ ~/.julia/packages/GAP/ydeRk/src/GAP.jl:49
 [20] include(mod::Module, _path::String)
    @ Base ./Base.jl:489 [inlined]
 [21] 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:2157
 [22] top-level scope
    @ stdin:3
in expression starting at ~/.julia/packages/GAP/ydeRk/src/setup.jl:1
in expression starting at ~/.julia/packages/GAP/ydeRk/src/GAP.jl:1
in expression starting at stdin:3
ERROR: Failed to precompile GAP [c863536a-3901-11e9-33e7-d5cd0df7b904] to "~/.julia/compiled/v1.10/GAP/jl_FXs7kP".
Stacktrace:
  [1] error(s::String)
    @ Base ./error.jl:35
  [2] compilecache(pkg::Base.PkgId, path::String, internal_stderr::IO, internal_stdout::IO, keep_loaded_modules::Bool)
    @ Base ./loading.jl:2409
  [3] compilecache(pkg::Base.PkgId, path::String, internal_stderr::IO, internal_stdout::IO)
    @ Base ./loading.jl:2275 [inlined]
  [4] (::Base.var"#964#965"{Base.PkgId})()
    @ Base ./loading.jl:1909
  [5] mkpidlock(f::Base.var"#964#965"{Base.PkgId}, at::String, pid::Int32; kwopts::@Kwargs{stale_age::Int64, wait::Bool})
    @ FileWatching.Pidfile /tmp/tmp/julia/usr/share/julia/stdlib/v1.10/FileWatching/src/pidfile.jl:92
  [6] mkpidlock(f::Function, at::String; kwopts::@Kwargs{stale_age::Int64, wait::Bool})
    @ FileWatching.Pidfile /tmp/tmp/julia/usr/share/julia/stdlib/v1.10/FileWatching/src/pidfile.jl:87 [inlined]
  [7] trymkpidlock(::Function, ::Vararg{Any}; kwargs::@Kwargs{stale_age::Int64})
    @ FileWatching.Pidfile /tmp/tmp/julia/usr/share/julia/stdlib/v1.10/FileWatching/src/pidfile.jl:110
  [8] invokelatest(::Any, ::Returns{Nothing}, ::String; kwargs::@Kwargs{stale_age::Int64})
    @ Base ./essentials.jl:869 [inlined]
  [9] maybe_cachefile_lock(f::Base.var"#964#965"{Base.PkgId}, pkg::Base.PkgId, srcpath::String; stale_age::Int64)
    @ Base ./loading.jl:2839
 [10] maybe_cachefile_lock(f::Base.var"#964#965"{Base.PkgId}, pkg::Base.PkgId, srcpath::String)
    @ Base ./loading.jl:2836 [inlined]
 [11] _require(pkg::Base.PkgId, env::String)
    @ Base ./loading.jl:1905
 [12] __require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base ./loading.jl:1747
 [13] invoke_in_world(::UInt64, ::typeof(Base.__require_prelocked), ::Base.PkgId, ::String; kwargs::@Kwargs{})
    @ Base ./essentials.jl:901 [inlined]
 [14] invoke_in_world(::UInt64, ::typeof(Base.__require_prelocked), ::Base.PkgId, ::String)
    @ Base ./essentials.jl:898 [inlined]
 [15] _require_prelocked(uuidkey::Base.PkgId, env::String)
    @ Base ./loading.jl:1738
 [16] macro expansion
    @ Base ./loading.jl:1725 [inlined]
 [17] macro expansion
    @ Base ./lock.jl:267 [inlined]
 [18] __require(into::Module, mod::Symbol)
    @ Base ./loading.jl:1688
 [19] invoke_in_world(::UInt64, ::typeof(Base.__require), ::Module, ::Symbol; kwargs::@Kwargs{})
    @ Base ./essentials.jl:901 [inlined]
 [20] invoke_in_world(::UInt64, ::typeof(Base.__require), ::Module, ::Symbol)
    @ Base ./essentials.jl:898 [inlined]
 [21] require(into::Module, mod::Symbol)
    @ Base ./loading.jl:1681

julia>

I have bisected this to JuliaLang/julia@6d400e4, although I am not 100% sure because I also get an error before this commit, but a different one which also exists for much older commits.

[fingolfin]

We already have an Yggdrasil PR open

[zickgraf]

We already have an Yggdrasil PR open

Perfect, thanks! Is there a place where you communicate/coordinate such things, e.g. somewhere in Slack?

[fingolfin]

We discuss such things on the OSCAR Slack, https://oscar-system.org/slack

[zickgraf]

Our CI is up and running again, thanks! In the future I will try to coordinate in slack in such a case :-)