Pkg system broken because of LibGit2

either

$ julia
               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.3.1 (2019-12-30)
 _/ |\__'_|_|_|\__'_|  |  Official https://julialang.org/ release
|__/                   |

julia> import LibGit2

julia> LibGit2.set_ssl_cert_locations("/etc/ssl/certs/ca-certificates.crt")

signal (11): Segmentation fault
in expression starting at REPL[2]:1
unknown function (ip: 0xffffffffffffffff)
Allocations: 942697 (Pool: 942478; Big: 219); GC: 1
[1]    6208 segmentation fault (core dumped)  julia

or

$ julia 
               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.3.1 (2019-12-30)
 _/ |\__'_|_|_|\__'_|  |  Official https://julialang.org/ release
|__/                   |

(v1.3) pkg> up
  Updating registry at `~/.julia/registries/General`
  Updating git-repo `https://github.com/JuliaRegistries/General.git`
┌ Warning: Some registries failed to update:
│     — /home/lizz/.julia/registries/General — failed to fetch from repo
└ @ Pkg.Types /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.3/Pkg/src/Types.jl:1199
  Updating git-repo `https://github.com/JuliaPackaging/BinaryBuilder.jl.git`
ERROR: failed to fetch from https://github.com/JuliaPackaging/BinaryBuilder.jl.git, error: GitError(Code:ECERTIFICATE, Class:SSL, the SSL certificate is invalid: 0x08 - The certificate is not correctly signed by the trusted CA)

(v1.3) pkg> 

Does anyone have idea how to fix it?
Thanks a lot!

What operating system?

Also, are you using the official binaries downloaded from JuliaLang.org?

Its Ubuntu 18.04 & official binaries

Seems related to https://github.com/JuliaLang/julia/issues/17789

You may want to comment on that issue.

Haha an old issue.

The workaround is

$ julia
               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.3.1 (2019-12-30)
 _/ |\__'_|_|_|\__'_|  |  Official https://julialang.org/ release
|__/                   |

(v1.3) pkg> up
  Updating registry at `~/.julia/registries/General`
  Updating git-repo `https://github.com/JuliaRegistries/General.git`
┌ Warning: Some registries failed to update:
│     — /home/lizz/.julia/registries/General — failed to fetch from repo
└ @ Pkg.Types /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.3/Pkg/src/Types.jl:1199
  Updating git-repo `https://github.com/JuliaPackaging/BinaryBuilder.jl.git`
ERROR: failed to fetch from https://github.com/JuliaPackaging/BinaryBuilder.jl.git, error: GitError(Code:ECERTIFICATE, Class:SSL, the SSL certificate is invalid: 0x08 - The certificate is not correctly signed by the trusted CA)

julia> import LibGit2

julia> LibGit2.set_ssl_cert_locations("/etc/ssl/certs/ca-certificates.crt")
0

julia> 

The workaround has to raise an error first, so there is no good way to put them in the startup script.