cmd/go: toolchain=auto doesn't upgrade version with local replacement module

[andig]

What version of Go are you using (go version)?

$ go version
go version go1.23.6 darwin/arm64

Does this issue reproduce with the latest release?

What operating system and processor architecture are you using (go env)?

go env Output

$ go env
GO111MODULE=''
GOARCH='arm64'
GOBIN=''
GOCACHE='/Users/andig/Library/Caches/go-build'
GOENV='/Users/andig/Library/Application Support/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFLAGS=''
GOHOSTARCH='arm64'
GOHOSTOS='darwin'
GOINSECURE=''
GOMODCACHE='/Users/andig/go/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='darwin'
GOPATH='/Users/andig/go'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/opt/homebrew/Cellar/go/1.23.6/libexec'
GOSUMDB='sum.golang.org'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/opt/homebrew/Cellar/go/1.23.6/libexec/pkg/tool/darwin_arm64'
GOVCS=''
GOVERSION='go1.23.6'
GODEBUG=''
GOTELEMETRY='on'
GOTELEMETRYDIR='/Users/andig/Library/Application Support/go/telemetry'
GCCGO='gccgo'
GOARM64='v8.0'
AR='ar'
CC='cc'
CXX='c++'
CGO_ENABLED='1'
GOMOD='/Users/andig/htdocs/evcc-sponsor/go.mod'
GOWORK=''
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
PKG_CONFIG='pkg-config'
GOGCCFLAGS='-fPIC -arch arm64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -ffile-prefix-map=/var/folders/sv/rs_453y57xj86xsbz3kw1mbc0000gn/T/go-build2589966869=/tmp/go-build -gno-record-gcc-switches -fno-common'
GOROOT/bin/go version: go version go1.23.6 darwin/arm64
GOROOT/bin/go tool compile -V: compile version go1.23.6
uname -v: Darwin Kernel Version 24.3.0: Thu Jan  2 20:24:06 PST 2025; root:xnu-11215.81.4~3/RELEASE_ARM64_T8103
ProductName:		macOS
ProductVersion:		15.3
BuildVersion:		24D60
lldb --version: lldb-1600.0.39.109
Apple Swift version 6.0.3 (swiftlang-6.0.3.1.10 clang-1600.0.30.1)

What did you do?

I have go1.23 in the path. My bar module is upgraded in go.mod to require 1.24. This works compiling the module.
I have a second module foo that depends on the first module and uses a replacement to use the local version:

module github.com/evcc/foo

go 1.24

require github.com/evcc-io/bar v0.0.0-20240913125300-7837bacb886f

replace github.com/evcc-io/bar => ../evcc

What did you expect to see?

Build success

What did you see instead?

# github.com/evcc/bar
❯ go build -o app
(ok)

# github.com/evcc/foo
❯ go build -o app
go: module ../evcc requires go >= 1.24 (running go 1.23.6)