Travis CI Documenter failure

[mattBrzezinski]

This has been occurring a few times recently where documentation fails to build,

• https://travis-ci.org/github/JuliaDiff/FiniteDifferences.jl/jobs/709794230
• https://travis-ci.org/github/JuliaDiff/FiniteDifferences.jl/jobs/708490805
• https://travis-ci.org/github/JuliaDiff/FiniteDifferences.jl/jobs/707247012

julia --project=docs/ docs/make.jl
[ Info: SetupBuildDirectory: setting up build directory.
[ Info: Doctest: running doctests.
[ Info: ExpandTemplates: expanding markdown templates.
[ Info: CrossReferences: building cross-references.
[ Info: CheckDocument: running document checks.
┌ Warning: `curl -sI --proto =http,https,ftp,ftps 'https://codecov.io/github/JuliaDiff/FiniteDifferences.jl?branch=master' --max-time 10 -o /dev/null --write-out '%{http_code} %{url_effective} %{redirect_url}'` failed:
│   exception =
│    failed process: Process(`curl -sI --proto =http,https,ftp,ftps 'https://codecov.io/github/JuliaDiff/FiniteDifferences.jl?branch=master' --max-time 10 -o /dev/null --write-out '%{http_code} %{url_effective} %{redirect_url}'`, ProcessExited(28)) [28]
│    
└ @ Documenter.DocChecks ~/.julia/packages/Documenter/IGqbY/src/DocChecks.jl:205
[ Info: Populate: populating indices.
ERROR: LoadError: `makedocs` encountered an error. Terminating build
Stacktrace:
 [1] error(::String) at ./error.jl:33
 [2] runner(::Type{Documenter.Builder.RenderDocument}, ::Documenter.Documents.Document) at /home/travis/.julia/packages/Documenter/IGqbY/src/Builder.jl:242
 [3] dispatch(::Type{Documenter.Builder.DocumentPipeline}, ::Documenter.Documents.Document) at /home/travis/.julia/packages/Documenter/IGqbY/src/Utilities/Selectors.jl:167
 [4] #3 at /home/travis/.julia/packages/Documenter/IGqbY/src/Documenter.jl:319 [inlined]
 [5] cd(::Documenter.var"#3#8"{Documenter.Documents.Document}, ::String) at ./file.jl:104
 [6] #makedocs#1 at /home/travis/.julia/packages/Documenter/IGqbY/src/Documenter.jl:318 [inlined]
 [7] top-level scope at /home/travis/build/JuliaDiff/FiniteDifferences.jl/docs/make.jl:3
 [8] include(::Module, ::String) at ./Base.jl:377
 [9] exec_options(::Base.JLOptions) at ./client.jl:288
 [10] _start() at ./client.jl:484
in expression starting at /home/travis/build/JuliaDiff/FiniteDifferences.jl/docs/make.jl:3
The command "julia --project=docs/ docs/make.jl" exited with 1.
Skipping the after_success step, as specified in the configuration.
Done. Your build exited with 1.

I don't have really any experience with Documenter.jl, is this an actual issue that needs to be looked into?

[oxinabox]

Curl Exit code 28 is a timeout
It is coming from here where the checking of links happens

It is checking this link: https://codecov.io/github/JuliaDiff/FiniteDifferences.jl?branch=master
which works for me.

Maybe it is just being slow sometimes?

[mattBrzezinski]

Yeah, I think there may be something further underlying here. If this was just CodeCov being hammered we would be seeing this with other packages in the Julia Ecosystem. I haven't come across any, however I haven't looked extensively.

[mattBrzezinski]

Happened again. Lets bump the timeout and see if it can self recover?

[mattBrzezinski]

I just read the error, the max timeout is set to 10 seconds. Lets try 30 (default for most things) and see if this happens again.