Failed to store cargo cache

GitLab CI/CD
1

Hello everyone,

I created a simple Rust hello-world project https://gitlab.com/yvan-sraka/rust-cache-example/ with this .gitlab-ci.yml:

image: "rust:latest"

cache:
  key:
    files:
      - Cargo.lock
  paths:
    - /usr/local/cargo/bin
    - /usr/local/cargo/registry/index
    - /usr/local/cargo/registry/cache
    - /usr/local/cargo/git/db
    - ./target

before_script:
  - echo $RUSTUP_HOME # /usr/local/rustup
  - echo $CARGO_HOME # /usr/local/cargo
  - echo $PATH # /usr/local/cargo/bin:$PATH

build:
  script:
    - cargo build

But it fail to store build cache https://gitlab.com/yvan-sraka/rust-cache-example/-/jobs/1661084920 (for a reason I didn’t get yet) :

Creating cache default...
WARNING: /usr/local/cargo/bin: no matching files   
WARNING: /usr/local/cargo/registry/index: no matching files 
WARNING: /usr/local/cargo/registry/cache: no matching files 
WARNING: /usr/local/cargo/git/db: no matching files 
./target: found 35 matching files and directories  
Uploading cache.zip to https://storage.googleapis.com/gitlab-com-runners-cache/project/30276400/default 
Created cache

Does anyone have any guess of what happened here?!

Thanks, Yvan