registry-garbage-collect blows up on moved projects (failed to retrieve tags unknown repository)
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### Summary
Running `gitlab-ctl registry-garbage-collect -m` fails with an error `failed to garbage collect: failed to mark: gcs: gcs: failed to retrieve tags unknown repository name=anthony-ldap/customer-portal/feature-container` referring to the old name of a renamed project. This is using Google Cloud Storage for the registry.
### Steps to reproduce
Happens each run of `gitlab-ctl registry-garbage-collect -m`
That project was (a while ago) renamed to services/customer-portal via project settings→advanced→rename repository.
Also, at one point registry storage was migrated from local disk to Google Cloud Storage by copying all the files to objects (using `rclone sync`), and changing the GitLab settings.
### Example Project
N/A
### What is the current *bug* behavior?
Error message.
### What is the expected *correct* behavior?
A bunch of old, obsolete images deleted.
### Relevant logs and/or screenshots
```
root@git:~# gitlab-ctl registry-garbage-collect -m
ok: down: registry: 0s, normally up
Running garbage-collect using configuration ["/opt/gitlab/embedded/bin/registry", "garbage-collect", "/var/opt/gitlab/registry/config.yml", "-m"], this might take a while...
anthony-ldap/customer-portal/feature-container
manifest eligible for deletion: sha256:1aa45b60b2bbba67c1b33f3ed4c764e8737c49731e934beeb051231b3ed4d4e1
failed to garbage collect: failed to mark: gcs: gcs: failed to retrieve tags unknown repository name=anthony-ldap/customer-portal/feature-container
Failed to run garbage-collect command, starting registry service.
ok: run: registry: (pid 28110) 0s
```
### Output of checks
(If you are reporting a bug on GitLab.com, write: This bug happens on GitLab.com)
#### Results of GitLab environment info
<details>
<summary>Expand for output related to GitLab environment info</summary>
<pre>
root@git:~# gitlab-rake gitlab:env:info
System information
System: Debian 9.8
Current User: git
Using RVM: no
Ruby Version: 2.5.3p105
Gem Version: 2.7.6
Bundler Version:1.17.3
Rake Version: 12.3.2
Redis Version: 3.2.12
Git Version: 2.18.1
Sidekiq Version:5.2.5
Go Version: unknown
GitLab information
Version: 11.10.0
Revision: 8a802d1c6b7
Directory: /opt/gitlab/embedded/service/gitlab-rails
DB Adapter: PostgreSQL
DB Version: 9.6.11
URL: https://git.«REDACTED».net
HTTP Clone URL: https://git.«REDACTED».net/some-group/some-project.git
SSH Clone URL: git@git.«REDACTED».net:some-group/some-project.git
Using LDAP: yes
Using Omniauth: yes
Omniauth Providers:
GitLab Shell
Version: 9.0.0
Repository storage paths:
- default: /var/opt/gitlab/git-data/repositories
GitLab Shell path: /opt/gitlab/embedded/service/gitlab-shell
Git: /opt/gitlab/embedded/bin/git
</pre>
</details>
#### Results of GitLab application Check
<details>
<summary>Expand for output related to the GitLab application check</summary>
<pre>
Checking GitLab subtasks ...
Checking GitLab Shell ...
GitLab Shell: ... GitLab Shell version >= 9.0.0 ? ... OK (9.0.0)
Running /opt/gitlab/embedded/service/gitlab-shell/bin/check
Check GitLab API access: OK
Redis available via internal API: OK
Access to /var/opt/gitlab/.ssh/authorized_keys: OK
gitlab-shell self-check successful
Checking GitLab Shell ... Finished
Checking Gitaly ...
Gitaly: ... default ... OK
Checking Gitaly ... Finished
Checking Sidekiq ...
Sidekiq: ... Running? ... yes
Number of Sidekiq processes ... 1
Checking Sidekiq ... Finished
Checking Incoming Email ...
Incoming Email: ... Reply by email is disabled in config/gitlab.yml
Checking Incoming Email ... Finished
Checking LDAP ...
LDAP: ... Server: ldapmain
LDAP authentication... Success
LDAP users with access to your GitLab server (only showing the first 100 results)
DN: cn=«REDACTED» uid: «REDACTED»
⋮ «REDACTED»
Checking LDAP ... Finished
Checking GitLab App ...
Git configured correctly? ... yes
Database config exists? ... yes
All migrations up? ... yes
Database contains orphaned GroupMembers? ... no
GitLab config exists? ... yes
GitLab config up to date? ... yes
Log directory writable? ... yes
Tmp directory writable? ... yes
Uploads directory exists? ... yes
Uploads directory has correct permissions? ... yes
Uploads directory tmp has correct permissions? ... yes
Init script exists? ... skipped (omnibus-gitlab has no init script)
Init script up-to-date? ... skipped (omnibus-gitlab has no init script)
Projects have namespace: ...
5/2 ... yes
5/3 ... yes
5/4 ... yes
5/5 ... yes
6/6 ... yes
6/7 ... yes
6/8 ... yes
6/9 ... yes
6/10 ... yes
6/11 ... yes
6/12 ... yes
6/13 ... yes
6/14 ... yes
6/15 ... yes
6/16 ... yes
6/17 ... yes
6/18 ... yes
6/19 ... yes
6/20 ... yes
6/21 ... yes
6/22 ... yes
6/23 ... yes
6/24 ... yes
6/25 ... yes
6/26 ... yes
6/27 ... yes
6/28 ... yes
6/29 ... yes
6/30 ... yes
6/31 ... yes
6/32 ... yes
6/33 ... yes
6/34 ... yes
6/35 ... yes
6/36 ... yes
6/37 ... yes
4/38 ... yes
49/39 ... yes
49/40 ... yes
5/41 ... yes
4/42 ... yes
5/43 ... yes
6/44 ... yes
6/45 ... yes
6/46 ... yes
6/47 ... yes
4/50 ... yes
6/52 ... yes
6/53 ... yes
57/54 ... yes
4/55 ... yes
57/56 ... yes
57/57 ... yes
4/58 ... yes
6/59 ... yes
59/61 ... yes
49/62 ... yes
4/63 ... yes
5/64 ... yes
5/65 ... yes
6/66 ... yes
5/67 ... yes
4/68 ... yes
62/69 ... yes
66/70 ... yes
6/71 ... yes
62/72 ... yes
62/73 ... yes
6/74 ... yes
6/75 ... yes
66/76 ... yes
6/77 ... yes
6/78 ... yes
6/79 ... yes
6/80 ... yes
6/81 ... yes
6/82 ... yes
66/83 ... yes
6/84 ... yes
6/85 ... yes
66/86 ... yes
74/87 ... yes
59/88 ... yes
74/89 ... yes
74/91 ... yes
74/92 ... yes
Redis version >= 2.8.0? ... yes
Ruby version >= 2.3.5 ? ... yes (2.5.3)
Git version >= 2.18.0 ? ... yes (2.18.1)
Git user has default SSH configuration? ... yes
Active users: ... 53
Checking GitLab App ... Finished
Checking GitLab subtasks ... Finished
</pre>
</details>
### Possible fixes
(If you can, link to the line of code that might be responsible for the problem)
issue
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