Dependabot Support for Go 1.21

[maxmoehl]

Select Topic Area

Question

Body

I noticed that a recent dependabot PR couldn't be rebased anymore. The Dependabot dashboard (Insights > Dependency Graph > Dependabot) showed that go1.21 is not yet supported:

Dependabot can't parse your go.mod
Dependabot failed to update your dependencies because there was an error parsing the go.mod found at /go.mod.

Dependabot encountered the following error:

go: downloading go1.21 (linux/amd64)
go: download go1.21 for linux/amd64: toolchain not available

I have two questions:

1. Is there an ETA for supporting the latest go version?
2. Can the detailed error message be included in the PR as well? It took me quite some time to figure out what was going wrong and showing the info in the PR (or providing a link to the dashboard) would've helped a lot.

Thanks :)

Edit: This is the full log from Dependabot:

Click me!

  proxy | 2023/08/31 07:34:19 proxy starting, commit: 93c4a893d794d736d84e940a79420e8d1180c0bd
  proxy | 2023/08/31 07:34:19 Listening (:1080)
updater | 2023-08-31T07:34:21.015633870 [716218820:main:WARN:src/devices/src/legacy/serial.rs:222] Detached the serial input due to peer close/error.
updater | time="2023-08-31T07:34:23Z" level=info msg="guest starting" commit=4411563f7e792aa216b0b1ea4b056506b2613759
updater | time="2023-08-31T07:34:23Z" level=info msg="starting job..." fetcher_timeout=10m0s job_id=716218820 updater_timeout=45m0s updater_version=bce68d39b350f6975c0967648f2cc56d4b41e6aa-gomod
updater | 2023/08/31 07:34:25 INFO Raven 3.1.2 ready to catch errors
updater | 2023/08/31 07:34:26 INFO  Starting job processing
  proxy | 2023/08/31 07:34:27 [002] GET https://github.com:443/maxmoehl/harald/info/refs?service=git-upload-pack
  proxy | 2023/08/31 07:34:27 [002] * authenticating git server request (host: github.com)
  proxy | 2023/08/31 07:34:27 [002] 200 https://github.com:443/maxmoehl/harald/info/refs?service=git-upload-pack
  proxy | 2023/08/31 07:34:27 [004] POST https://github.com:443/maxmoehl/harald/git-upload-pack
  proxy | 2023/08/31 07:34:27 [004] * authenticating git server request (host: github.com)
  proxy | 2023/08/31 07:34:27 [004] 200 https://github.com:443/maxmoehl/harald/git-upload-pack
  proxy | 2023/08/31 07:34:27 [006] POST https://github.com:443/maxmoehl/harald/git-upload-pack
  proxy | 2023/08/31 07:34:27 [006] * authenticating git server request (host: github.com)
  proxy | 2023/08/31 07:34:27 [006] 200 https://github.com:443/maxmoehl/harald/git-upload-pack
updater | 2023/08/31 07:34:28 INFO  Finished job processing
updater | time="2023-08-31T07:34:28Z" level=info msg="task complete" container_id=job-716218820-file-fetcher exit_code=0 job_id=716218820 step=fetcher
updater | 2023/08/31 07:34:29 INFO Raven 3.1.2 ready to catch errors
updater | 2023/08/31 07:34:30 INFO  Starting job processing
  proxy | 2023/08/31 07:34:31 [010] GET https://proxy.golang.org:443/golang.org/toolchain/@v/v0.0.1-go1.21.linux-amd64.zip
  proxy | 2023/08/31 07:34:31 [010] 404 https://proxy.golang.org:443/golang.org/toolchain/@v/v0.0.1-go1.21.linux-amd64.zip
  proxy | 2023/08/31 07:34:31 [012] GET https://golang.org:443/toolchain?go-get=1
  proxy | 2023/08/31 07:34:31 [012] 200 https://golang.org:443/toolchain?go-get=1
  proxy | 2023/08/31 07:34:32 [014] GET https://go.dev:443/dl/mod/golang.org/toolchain/@v/v0.0.1-go1.21.linux-amd64.zip
  proxy | 2023/08/31 07:34:32 [014] 302 https://go.dev:443/dl/mod/golang.org/toolchain/@v/v0.0.1-go1.21.linux-amd64.zip
  proxy | 2023/08/31 07:34:32 [016] GET https://dl.google.com:443/go/v0.0.1-go1.21.linux-amd64.zip
  proxy | 2023/08/31 07:34:32 [016] 404 https://dl.google.com:443/go/v0.0.1-go1.21.linux-amd64.zip
updater | 2023/08/31 07:34:32 INFO  Finished job processing
updater | 2023/08/31 07:34:32 INFO Results:
updater | Dependabot encountered '1' error(s) during execution, please check the logs for more details.
updater | +-------------------------------+
updater | |            Errors             |
updater | +-------------------------------+
updater | | dependency_file_not_parseable |
updater | +-------------------------------+
updater | time="2023-08-31T07:34:32Z" level=info msg="task complete" container_id=job-716218820-updater exit_code=0 job_id=716218820 step=updater

[ivan-penchev]

this is as expected: go 1.21 was a development version of the language, for which there is no downloadable release (because it is not a specific version). The release version would be go 1.21.0.

In general if you want to specify a development version in the go line, you must also give a concrete toolchain version. So modifying your go.mod in either of these should work:

go 1.21.0

go 1.21
toolchain go1.21.0

[maxmoehl]

Thanks, but please don't copy someone else's comment without giving credit.