xcaddy build getting stuck

[xombiemp]

I'm having trouble building using xcaddy build with this module.
xcaddy build by itself completes successfully. xcaddy build with a different module (caddy-security) completes successfully. But I can't get xcaddy build --with github.com/mholt/caddy-events-exec to complete successfully.
It always seems to get stuck on some dependancy. Here is the output. It got stuck so I had to eventually just ctrl+c to stop it:

xcaddy build --with github.com/mholt/caddy-events-exec
2023/02/20 22:11:21 [INFO] Temporary folder: /tmp/buildenv_2023-02-20-2211.3715409004
2023/02/20 22:11:21 [INFO] Writing main module: /tmp/buildenv_2023-02-20-2211.3715409004/main.go
package main

import (
	caddycmd "github.com/caddyserver/caddy/v2/cmd"

	// plug in Caddy modules here
	_ "github.com/caddyserver/caddy/v2/modules/standard"
	_ "github.com/mholt/caddy-events-exec"
)

func main() {
	caddycmd.Main()
}
2023/02/20 22:11:21 [INFO] Initializing Go module
2023/02/20 22:11:21 [INFO] exec (timeout=10s): /usr/bin/go mod init caddy 
go: creating new go.mod: module caddy
go: to add module requirements and sums:
	go mod tidy
2023/02/20 22:11:21 [INFO] Pinning versions
2023/02/20 22:11:21 [INFO] exec (timeout=0s): /usr/bin/go get -d -v github.com/caddyserver/caddy/v2 
go: downloading github.com/caddyserver/caddy/v2 v2.6.4
go: downloading github.com/caddyserver/caddy v1.0.5
go: downloading github.com/caddyserver/certmagic v0.17.2
go: downloading github.com/google/uuid v1.3.0
go: downloading github.com/prometheus/client_golang v1.14.0
go: downloading github.com/quic-go/quic-go v0.32.0
go: downloading go.uber.org/zap v1.24.0
go: downloading golang.org/x/sys v0.5.0
go: downloading golang.org/x/term v0.5.0
go: downloading github.com/klauspost/cpuid/v2 v2.2.3
go: downloading github.com/libdns/libdns v0.2.1
go: downloading github.com/mholt/acmez v1.1.0
go: downloading github.com/miekg/dns v1.1.50
go: downloading golang.org/x/crypto v0.5.0
go: downloading golang.org/x/net v0.7.0
go: downloading github.com/beorn7/perks v1.0.1
go: downloading github.com/cespare/xxhash/v2 v2.1.2
go: downloading github.com/cespare/xxhash v1.1.0
go: downloading github.com/golang/protobuf v1.5.2
go: downloading github.com/prometheus/client_model v0.3.0
go: downloading github.com/prometheus/common v0.37.0
go: downloading github.com/prometheus/procfs v0.8.0
go: downloading google.golang.org/protobuf v1.28.1
go: downloading go.uber.org/atomic v1.9.0
go: downloading go.uber.org/multierr v1.6.0
go: downloading github.com/quic-go/qpack v0.4.0
go: downloading github.com/golang/mock v1.6.0
go: downloading github.com/onsi/ginkgo/v2 v2.2.0
go: downloading golang.org/x/tools v0.2.0
go: downloading github.com/matttproud/golang_protobuf_extensions v1.0.1
go: downloading github.com/quic-go/qtls-go1-18 v0.2.0
go: downloading github.com/quic-go/qtls-go1-19 v0.2.0
go: downloading github.com/quic-go/qtls-go1-20 v0.1.0
go: downloading golang.org/x/exp v0.0.0-20221205204356-47842c84f3db
go: downloading golang.org/x/text v0.7.0
go: downloading golang.org/x/mod v0.6.0
go: downloading github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0
go: downloading github.com/google/pprof v0.0.0-20210407192527-94a9f03dee38
go: added github.com/beorn7/perks v1.0.1
go: added github.com/caddyserver/caddy/v2 v2.6.4
go: added github.com/caddyserver/certmagic v0.17.2
go: added github.com/cespare/xxhash/v2 v2.1.2
go: added github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0
go: added github.com/golang/mock v1.6.0
go: added github.com/golang/protobuf v1.5.2
go: added github.com/google/pprof v0.0.0-20210407192527-94a9f03dee38
go: added github.com/google/uuid v1.3.0
go: added github.com/klauspost/cpuid/v2 v2.2.3
go: added github.com/libdns/libdns v0.2.1
go: added github.com/matttproud/golang_protobuf_extensions v1.0.1
go: added github.com/mholt/acmez v1.1.0
go: added github.com/miekg/dns v1.1.50
go: added github.com/onsi/ginkgo/v2 v2.2.0
go: added github.com/prometheus/client_golang v1.14.0
go: added github.com/prometheus/client_model v0.3.0
go: added github.com/prometheus/common v0.37.0
go: added github.com/prometheus/procfs v0.8.0
go: added github.com/quic-go/qpack v0.4.0
go: added github.com/quic-go/qtls-go1-18 v0.2.0
go: added github.com/quic-go/qtls-go1-19 v0.2.0
go: added github.com/quic-go/qtls-go1-20 v0.1.0
go: added github.com/quic-go/quic-go v0.32.0
go: added go.uber.org/atomic v1.9.0
go: added go.uber.org/multierr v1.6.0
go: added go.uber.org/zap v1.24.0
go: added golang.org/x/crypto v0.5.0
go: added golang.org/x/exp v0.0.0-20221205204356-47842c84f3db
go: added golang.org/x/mod v0.6.0
go: added golang.org/x/net v0.7.0
go: added golang.org/x/sys v0.5.0
go: added golang.org/x/term v0.5.0
go: added golang.org/x/text v0.7.0
go: added golang.org/x/tools v0.2.0
go: added google.golang.org/protobuf v1.28.1
2023/02/20 22:11:26 [INFO] exec (timeout=0s): /usr/bin/go get -d -v github.com/mholt/caddy-events-exec github.com/caddyserver/caddy/v2 
go: downloading github.com/mholt/caddy-events-exec v0.0.0-20221013172934-88290c6b74c4
go: added github.com/mholt/caddy-events-exec v0.0.0-20221013172934-88290c6b74c4
2023/02/20 22:11:27 [INFO] exec (timeout=0s): /usr/bin/go get -d -v  
go: downloading github.com/aryann/difflib v0.0.0-20210328193216-ff5ff6dc229b
go: downloading github.com/spf13/cobra v1.6.1
go: downloading github.com/spf13/pflag v1.0.5
go: downloading github.com/inconshreveable/mousetrap v1.0.1
go: downloading github.com/cpuguy83/go-md2man/v2 v2.0.2
go: downloading gopkg.in/yaml.v3 v3.0.1
go: downloading github.com/smallstep/certificates v0.23.2
go: downloading github.com/smallstep/truststore v0.12.1
go: downloading go.step.sm/crypto v0.23.2
go: downloading github.com/go-chi/chi v4.1.2+incompatible
go: downloading github.com/smallstep/nosql v0.5.0
go: downloading github.com/tailscale/tscert v0.0.0-20230124224810-c6dc1f4049b2
go: downloading github.com/dustin/go-humanize v1.0.1
go: downloading gopkg.in/natefinch/lumberjack.v2 v2.2.1
go: downloading github.com/google/cel-go v0.13.0
go: downloading google.golang.org/genproto v0.0.0-20230202175211-008b39050e57
go: downloading golang.org/x/sync v0.1.0
go: downloading github.com/klauspost/compress v1.15.15
go: downloading github.com/BurntSushi/toml v1.2.1
go: downloading github.com/Masterminds/sprig/v3 v3.2.3
go: downloading github.com/alecthomas/chroma/v2 v2.5.0
go: downloading github.com/yuin/goldmark v1.5.4
go: downloading github.com/yuin/goldmark-highlighting/v2 v2.0.0-20220924101305-151362477c87
go: downloading go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.39.0
go: downloading go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.4.0
go: downloading go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.4.0
go: downloading go.opentelemetry.io/otel v1.13.0
go: downloading go.opentelemetry.io/otel/sdk v1.13.0
go: downloading github.com/russross/blackfriday/v2 v2.1.0
go: downloading howett.net/plist v1.0.0
go: downloading github.com/pkg/errors v0.9.1
go: downloading github.com/fxamacker/cbor/v2 v2.4.0
go: downloading github.com/slackhq/nebula v1.6.1
go: downloading go.step.sm/linkedca v0.19.0
go: downloading go.step.sm/cli-utils v0.7.5
go: downloading google.golang.org/grpc v1.52.3
go: downloading gopkg.in/square/go-jose.v2 v2.6.0
go: downloading github.com/antlr/antlr4/runtime/Go/antlr v1.4.10
go: downloading github.com/stoewer/go-strcase v1.2.0
go: downloading github.com/Masterminds/goutils v1.1.1
go: downloading github.com/Masterminds/semver/v3 v3.2.0
go: downloading github.com/huandu/xstrings v1.3.3
go: downloading github.com/imdario/mergo v0.3.12
go: downloading github.com/mitchellh/copystructure v1.2.0
go: downloading github.com/shopspring/decimal v1.2.0
go: downloading github.com/spf13/cast v1.4.1
go: downloading github.com/felixge/httpsnoop v1.0.3
go: downloading go.opentelemetry.io/otel/metric v0.36.0
go: downloading go.opentelemetry.io/otel/trace v1.13.0
go: downloading go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.4.0
go: downloading go.opentelemetry.io/proto/otlp v0.12.0
go: downloading filippo.io/edwards25519 v1.0.0
go: downloading github.com/x448/float16 v0.8.4
go: downloading github.com/rs/xid v1.4.0
go: downloading github.com/sirupsen/logrus v1.9.0
go: downloading github.com/micromdm/scep/v2 v2.1.0
go: downloading go.mozilla.org/pkcs7 v0.0.0-20210826202110-33d05740a352
go: downloading github.com/urfave/cli v1.22.12
go: downloading github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e
go: downloading github.com/manifoldco/promptui v0.9.0
go: downloading github.com/Microsoft/go-winio v0.6.0
go: downloading github.com/mitchellh/go-ps v1.0.0
go: downloading github.com/dgraph-io/badger v1.6.2
go: downloading github.com/dgraph-io/badger/v2 v2.2007.4
go: downloading go.etcd.io/bbolt v1.3.6
go: downloading github.com/go-sql-driver/mysql v1.6.0
go: downloading github.com/jackc/pgx/v4 v4.17.2
go: downloading github.com/mitchellh/reflectwalk v1.0.2
go: downloading github.com/dlclark/regexp2 v1.7.0
go: downloading github.com/go-logr/logr v1.2.3
go: downloading github.com/cenkalti/backoff/v4 v4.1.2
go: downloading github.com/go-logr/stdr v1.2.2
go: downloading github.com/grpc-ecosystem/grpc-gateway v1.16.0
go: downloading github.com/go-kit/kit v0.10.0
go: downloading github.com/dgraph-io/ristretto v0.1.0
go: downloading github.com/dgryski/go-farm v0.0.0-20200201041132-a6ae2369ad13
go: downloading github.com/jackc/pgconn v1.13.0
go: downloading github.com/jackc/pgtype v1.12.0
go: downloading github.com/jackc/pgio v1.0.0
go: downloading github.com/jackc/pgproto3/v2 v2.3.1
go: downloading github.com/go-logfmt/logfmt v0.5.1
go: downloading github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96
go: downloading github.com/golang/snappy v0.0.4
go: downloading github.com/jackc/chunkreader/v2 v2.0.1
go: downloading github.com/jackc/pgpassfile v1.0.0
go: downloading github.com/jackc/pgservicefile v0.0.0-20200714003250-2b9c44734f2b
go: downloading github.com/golang/glog v1.0.0
go: downloading github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d
go: downloading github.com/shurcooL/sanitized_anchor_name v1.0.0
go: downloading github.com/mattn/go-colorable v0.1.8
go: downloading github.com/mattn/go-isatty v0.0.13
^C2023/02/20 22:13:52 [INFO] SIGINT: Shutting down
2023/02/20 22:13:52 [FATAL] context canceled

[mholt]

Ah yeah, this is likely a known bug in the Go command. It's apparently sporadic, like a race condition.

We've noticed that a workaround is for plugins to update their go.mod files to use Caddy v2.6.3 or newer. I've just pushed a commit to this repo that does that. Will you try it now?

[xombiemp]

Looks like that fixed it. I was able to build successfully now. Thanks!
Hopefully that upstream bug gets worked out.