The following errors happened at the actions/setup-python step.

https://github.com/ruby/ruby/actions/runs/18229870239

> The version '3.x' with architecture 's390x' was not found for Ubuntu 24.04.
> The list of all available versions can be found here: https://raw.githubusercontent.com/actions/python-versions/main/versions-manifest.json

> The version '3.x' with architecture 'ppc64' was not found for Ubuntu 24.04.
> The list of all available versions can be found here: https://raw.githubusercontent.com/actions/python-versions/main/versions-manifest.json

After skipping the actions/setup-python step, the following errors also
happened at the actions/setup-java step.

https://github.com/ruby/ruby/actions/runs/18355975425?pr=14721

> make-ibm (check, ubuntu-24.04-ppc64le)
> Could not find satisfied version for SemVer '17'.

> make-ibm (check, ubuntu-24.04-s390x)
> The process '/usr/bin/bash' failed with exit code 1

> make-ibm (check, ubuntu-24.04-s390x)
> Process completed with exit code 127.

To fix the errors, I started using the Java distribution semeru (IBM Semeru
Runtime Open Edition) on the ppc64le/s390x cases.

You can see the following page for the details of the Java distribution semeru.

https://github.com/actions/setup-java?tab=readme-ov-file#supported-distributions
https://github.com/actions/setup-java/blob/ead9eaa3cfe0b0fc2fa749519ae09c3d4f4080b0/src/distributions/semeru/installer.ts#L20-L27

I've enabled the [Predictive Test Selection](https://www.launchableinc.com/docs/features/predictive-test-selection/) feature, which let machine-learning model selects the appropriate tests to reduce CI execution time in https://github.com/ruby/ruby/pull/12617.

However, I noticed that there are some problems for enabling PTS in Ruby CI after several experiments. Until fixing the problem, I'll disable this feature by removing `launchable subset` command.

As well as compilers/entrypoint.sh.

When Launchable in unstable, the round trip time takes a long time, which slows down CI execution. In this PR I configured the environment variable `LAUNCHABLE_COMMIT_TIMEOUT` to configure the timeout.

https://github.com/launchableinc/cli/pull/1015

When a Launchable server is unstable, a ReadTimeoutException occurs in the Launchable CLI. In such case, the Launchable CLI retries requests, which slows down CI execution. In this PR, I configured the environment variable SKIP_TIMEOUT_RETRY to disable retry attempts on requests(Link: https://github.com/launchableinc/cli/pull/992).

```
WARNING:urllib3.connectionpool:Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError("HTTPSConnectionPool(host='api.mercury.launchableinc.com', port=443): Read timed out. (read timeout=15)")': /intake/organizations/ruby/workspaces/ruby/commits/collect/options
  WARNING:urllib3.connectionpool:Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError("HTTPSConnectionPool(host='api.mercury.launchableinc.com', port=443): Read timed out. (read timeout=15)")': /intake/organizations/ruby/workspaces/ruby/commits/collect/options
  WARNING:urllib3.connectionpool:Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ReadTimeoutError("HTTPSConnectionPool(host='api.mercury.launchableinc.com', port=443): Read timed out. (read timeout=15)")': /intake/organizations/ruby/workspaces/ruby/commits/collect/options
  HTTPSConnectionPool(host='api.mercury.launchableinc.com', port=443): Max retries exceeded with url: /intake/organizations/ruby/workspaces/ruby/commits/collect/options (Caused by ReadTimeoutError("HTTPSConnectionPool(host='api.mercury.launchableinc.com', port=443): Read timed out. (read timeout=15)"))
  Exception in thread "main" javax.net.ssl.SSLException: Connection reset
  	at sun.security.ssl.Alert.createSSLException(Alert.java:127)
  	at sun.security.ssl.TransportContext.fatal(TransportContext.java:331)
  	at sun.security.ssl.TransportContext.fatal(TransportContext.java:274)
  	at sun.security.ssl.TransportContext.fatal(TransportContext.java:269)
  	at sun.security.ssl.SSLSocketImpl.handleException(SSLSocketImpl.java:1572)
  	at sun.security.ssl.SSLSocketImpl.access$400(SSLSocketImpl.java:73)
  	at sun.security.ssl.SSLSocketImpl$AppInputStream.read(SSLSocketImpl.java:982)
  	at org.apache.http.impl.io.SessionInputBufferImpl.streamRead(SessionInputBufferImpl.java:137)
  	at org.apache.http.impl.io.SessionInputBufferImpl.fillBuffer(SessionInputBufferImpl.java:153)
  	at org.apache.http.impl.io.SessionInputBufferImpl.readLine(SessionInputBufferImpl.java:280)
  	at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:138)
  	at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:56)
  	at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:259)
  	at org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:163)
  	at org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:157)
  	at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:273)
  	at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:125)
  	at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:272)
  	at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186)
  	at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89)
  	at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
  	at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
  	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
  	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:108)
  	at com.launchableinc.ingest.commits.CommitGraphCollector.transfer(CommitGraphCollector.java:131)
  	at com.launchableinc.ingest.commits.CommitIngester.run(CommitIngester.java:145)
  	at com.launchableinc.ingest.commits.CommitIngester.main(CommitIngester.java:72)
  	Suppressed: java.net.SocketException: Broken pipe (Write failed)
  		at java.net.SocketOutputStream.socketWrite0(Native Method)
  		at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:111)
  		at java.net.SocketOutputStream.write(SocketOutputStream.java:155)
  		at sun.security.ssl.SSLSocketOutputRecord.encodeAlert(SSLSocketOutputRecord.java:81)
  		at sun.security.ssl.TransportContext.fatal(TransportContext.java:362)
  		... 25 more
  Caused by: java.net.SocketException: Connection reset
  	at java.net.SocketInputStream.read(SocketInputStream.java:210)
  	at java.net.SocketInputStream.read(SocketInputStream.java:141)
  	at sun.security.ssl.SSLSocketInputRecord.read(SSLSocketInputRecord.java:464)
  	at sun.security.ssl.SSLSocketInputRecord.bytesInCompletePacket(SSLSocketInputRecord.java:68)
  	at sun.security.ssl.SSLSocketImpl.readApplicationRecord(SSLSocketImpl.java:1350)
  	at sun.security.ssl.SSLSocketImpl.access$300(SSLSocketImpl.java:73)
  	at sun.security.ssl.SSLSocketImpl$AppInputStream.read(SSLSocketImpl.java:966)
  	... 20 more
  Couldn't get commit history from `/github/workspace/src`. Do you run command root of git-controlled directory? If not, please set a directory use by --source option.
  HTTPSConnectionPool(host='api.mercury.launchableinc.com', port=443): Read timed out. (read timeout=60)
  Command '['java', '-jar', '/root/.local/pipx/venvs/launchable/lib/python3.10/site-packages/launchable/jar/exe_deploy.jar', 'ingest:commit', '-endpoint', 
```

https://github.com/ruby/ruby/actions/runs/13572112090/job/37939529243