go.mod is out of date and specifies unavailable dependencies

[shatil]

modernc.org/cc was deprecated as of July, and is now versioned. The latest major version is v3: https://pkg.go.dev/modernc.org/cc/v3

go: modernc.org/cc@v1.0.0: reading modernc.org/cc/go.mod at revision v1.0.0: git fetch -f origin refs/heads/*:refs/heads/* refs/tags/*:refs/tags/* in /root/go/pkg/mod/cache/vcs/214c7c8b018f9220f253771b1476659b6c905c4196c32b80b07a212616372040: exit status 128:
    error: RPC failed; result=22, HTTP code = 404
    fatal: The remote end hung up unexpectedly

modernc.org/golex@v1.0.0 is also out of date:

go: modernc.org/golex@v1.0.0: reading modernc.org/golex/go.mod at revision v1.0.0: git fetch -f origin refs/heads/*:refs/heads/* refs/tags/*:refs/tags/* in /root/go/pkg/mod/cache/vcs/331abdfca303c81a23ece466d46e18fedd2836c595dcfad18b8e9e93c37f08d5: exit status 128:
    error: RPC failed; result=22, HTTP code = 404
    fatal: The remote end hung up unexpectedly

And modernc.org/mathutil:

go: modernc.org/mathutil@v1.1.1: reading modernc.org/mathutil/go.mod at revision v1.1.1: git fetch -f origin refs/heads/*:refs/heads/* refs/tags/*:refs/tags/* in /root/go/pkg/mod/cache/vcs/6d5eb6f7314c374a7460656aec0e757c87dfb068fcb28b5ae365ea2e3a1a35fa: exit status 128:
    error: RPC failed; result=22, HTTP code = 404
    fatal: The remote end hung up unexpectedly

And modernc.org/strutil:

go: modernc.org/strutil@v1.1.0: reading modernc.org/strutil/go.mod at revision v1.1.0: git fetch -f origin refs/heads/*:refs/heads/* refs/tags/*:refs/tags/* in /root/go/pkg/mod/cache/vcs/151fa26af08bed5ec6a699b872ba143ac5282cae786b63f0587fe46054a0175f: exit status 128:
    error: RPC failed; result=22, HTTP code = 404
    fatal: The remote end hung up unexpectedly

[xlab]

The latest major version is v3

v3 has really many API changes, so it would be difficult to migrate to v3 quickly.

As for other deps, they're fetched just fine. I think it was a temporary issue with the remote host or you have weird GO_PROXY settings.