roachtest: cluster_creation failed

roachtest.cluster_creation [failed](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyAwsBazel/21185293?buildTab=log) with [artifacts](https://teamcity.cockroachdb.com/buildConfiguration/Cockroach_Nightlies_RoachtestNightlyAwsBazel/21185293?buildTab=artifacts#/kv95/enc=false/nodes=1/cpu=32/mt-shared-process) on release-26.1.1-rc @ [0fbf7b3d1b76716bc22e362b21f263d66fc81bf5](https://github.com/cockroachdb/cockroach/commits/0fbf7b3d1b76716bc22e362b21f263d66fc81bf5):

```
test kv95/enc=false/nodes=1/cpu=32/mt-shared-process failed: (test_runner.go:991).func4: in provider: aws: failed to run: aws ec2 run-instances --associate-public-ip-address --count 1 --instance-type c6id.8xlarge --image-id ami-0e83be366243f524a --key-name teamcity-runner-jEArW3ViqJ2E7BWuDI9NpQSvIas= --region us-east-2 --security-group-ids sg-04d72b57e29d671f1 --subnet-id subnet-0258dc9d1b6473d84 --tag-specifications ResourceType=instance,Tags=[{Key=usage,Value=roachtest},{Key=roachtest-branch,Value=release-26-1-1-rc},{Key=arch,Value=amd64},{Key=created,Value=2026-03-03T07:59:31Z},{Key=Name,Value=teamcity-21185293-1772521866-46-n2cpu32-0001},{Key=Cluster,Value=teamcity-21185293-1772521866-46-n2cpu32},{Key=spot,Value=true},{Key=roachprod,Value=true},{Key=cluster,Value=teamcity-21185293-1772521866-46-n2cpu32},{Key=lifetime,Value=12h0m0s}] ResourceType=volume,Tags=[{Key=usage,Value=roachtest},{Key=roachtest-branch,Value=release-26-1-1-rc},{Key=arch,Value=amd64},{Key=created,Value=2026-03-03T07:59:31Z},{Key=Name,Value=teamcity-21185293-1772521866-46-n2cpu32-0001},{Key=Cluster,Value=teamcity-21185293-1772521866-46-n2cpu32},{Key=spot,Value=true},{Key=roachprod,Value=true},{Key=cluster,Value=teamcity-21185293-1772521866-46-n2cpu32},{Key=lifetime,Value=12h0m0s}] --user-data file:///tmp/aws-startup-script979892468 --iam-instance-profile Name=roachprod-testing --block-device-mapping file:///tmp/aws-block-device-mapping1059152163 --instance-market-options MarketType=spot,SpotOptions={SpotInstanceType=one-time,InstanceInterruptionBehavior=terminate} --output json: stderr:
An error occurred (InsufficientInstanceCapacity) when calling the RunInstances operation (reached max retries: 2): We currently do not have sufficient c6id.8xlarge capacity in the Availability Zone you requested (us-east-2a). Our system will be working on provisioning additional capacity. You can currently get c6id.8xlarge capacity by not specifying an Availability Zone in your request or choosing us-east-2b, us-east-2c.: exit status 254 [owner=test-eng]
```

Parameters:
- MetamorphicFilesystem=xfs
- MetamorphicVolumeType=local-ssd
- cloud=aws
- coverageBuild=false
- cpu=32
- diskCount=0
- runtimeAssertionsBuild=false
Help

See: [roachtest README](https://github.com/cockroachdb/cockroach/blob/master/pkg/cmd/roachtest/README.md)

See: [How To Investigate \(internal\)](https://cockroachlabs.atlassian.net/l/c/SSSBr8c7)

Same failure on other branches

- #163915 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.4.6-rc]
- #163914 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-25.2.14-rc]
- #163912 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-release-24.3.28-rc]
- #162079 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-master]
- #162078 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-master]
- #161673 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-master]
- #161672 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-master]
- #161671 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-master]
- #161670 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-master]
- #161669 roachtest: cluster_creation failed [O-roachtest O-robot T-testeng X-infra-flake branch-master]

/cc @cockroachdb/test-eng

[This test on roachdash](https://roachdash.crdb.dev/?filter=status:open%20t:.*cluster_creation.*&sort=title+created&display=lastcommented+project) | [Improve this report!](https://github.com/cockroachdb/cockroach/tree/master/pkg/cmd/bazci/githubpost/issues)

Jira issue: CRDB-60991