algernon 1.12.5 does not build anymore

[fxcoudert]

We currently cannot build algernon as part of Homebrew:

==> go build -o algernon
go: downloading github.com/sirupsen/logrus v1.4.2
go: downloading github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e
go: downloading github.com/xyproto/permissionbolt v0.0.0-20190822174405-70061863efdb
go: downloading github.com/go-gcfg/gcfg v1.2.3
go: downloading github.com/xyproto/permissions2 v0.0.0-20190729074010-6510c7590749
go: downloading github.com/xyproto/term v0.3.1-0.20190822162330-fddaac69bf95
go: downloading github.com/xyproto/simpleredis v0.0.0-20181004131423-f2c3a2cf62d0
go: downloading github.com/lucas-clemente/quic-go v0.12.0
go: downloading github.com/xyproto/recwatch v0.0.0-20190815131735-c8f6c928dd10
go: downloading github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db
go: extracting github.com/sirupsen/logrus v1.4.2
go: extracting github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e
go: extracting github.com/xyproto/recwatch v0.0.0-20190815131735-c8f6c928dd10
go: downloading github.com/xyproto/sheepcounter v1.6.0
go: extracting github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db
go: extracting github.com/xyproto/permissionbolt v0.0.0-20190822174405-70061863efdb
go: extracting github.com/xyproto/term v0.3.1-0.20190822162330-fddaac69bf95
go: extracting github.com/xyproto/simpleredis v0.0.0-20181004131423-f2c3a2cf62d0
go: extracting github.com/go-gcfg/gcfg v1.2.3
verifying github.com/lucas-clemente/[email protected]: checksum mismatch
	downloaded: h1:TRbvZ6F++sofeGbh+Z2IIyIOhl8KyGnYuA06g2yrHdI=
	go.sum:     h1:dYHUyB50gEQlK3KqytmNySzuyzAcaQ3iuI2ZReAfVrE=

SECURITY ERROR
This download does NOT match an earlier download recorded in go.sum.
The bits may have been replaced on the origin server, or an attacker may
have intercepted the download attempt.

[xyproto]

Hi!

Please try:

go build -mod=vendor

To use the vendored dependencies.

[xyproto]

Tagged 1.12.6. Please try that version instead if there are issues with 1.12.5.

[xyproto]

Closing, since it seems to be solved in the issue linked to here.