Another common, but less obvious source of unstable inputs is when a task consumes the output of another task which produces non-repeatable results, such as the example before of a code generator that embeds timestamps in its output.

A task can only be loaded from the cache if it has stable task inputs.

func splitGopkgIn(path string) (prefix, pathMajor string, ok bool) {
	if !strings.HasPrefix(path, "gopkg.in/") {
		return path, "", false
	}
	i := len(path)
	if strings.HasSuffix(path, "-unstable") {
		i -= len("-unstable")
	}
	for i > 0 && ('0' <= path[i-1] && path[i-1] <= '9') {
		i--
	}
	if i <= 1 || path[i-1] != 'v' || path[i-2] != '.' {
		// All gopkg.in paths must end in vN for some N.

		//                                                                           v1.9.0-alpha.0                                             -> v1.9.0-alpha.1 -> v1.9.0-alpha.2

		// Get and output the current latest unstable version
		latestVersionStr, latestVersion, err := versionGetterImpl.VersionFromCILabel("latest", "experimental version")
		if err != nil {
			return upgrades, err
		}

						EtcdVersion:    getEtcdVersion(v1Z0alpha2),
					},
				},
			},
			allowExperimental: true,
			errExpected:       false,
		},
		{
			name: "upgrade from an unstable version to an unstable version should be supported",
			vg: &fakeVersionGetter{
				clusterVersion:   v1Z0alpha1.String(),
				componentVersion: v1Z0alpha1.String(),
				kubeletVersion:   v1Y5.String(),

        outputs.snapshot { run language.compileTaskName }

        when:
        // Compile more classes, so there is possibility some is generated before a compile failure.
        // Since order of passed classes to javac is unstable we can compile classes in different order on different platforms.
        // Compile .java also for Groovy, so the file is written before failure.
        sourceWithFileSuffix("java", "package a; class A {}")

 *  Fix in okhttp-coroutines: Publish a valid artifact. The coroutines JAR file in 5.0.0-alpha.13
    was corrupt and should not be used.


## Version 5.0.0-alpha.13

_2024-04-16_

 *  Breaking: Tag unstable new APIs as `@ExperimentalOkHttpApi`. We intend to release OkHttp 5.0
    without stabilizing these new APIs first.

    Do not use these experimental APIs in modules that may be executed using a version of OkHttp

        return isNullOrEmpty(dsl) ? BuildInitDsl.KOTLIN.getId() : dsl;
    }

    /**
     * Can the generated build use new and unstable features?
     *
     * When enabled, the generated build will use new patterns, APIs or features that
     * may be unstable between minor releases. Use this if you'd like to try out the
     * latest features of Gradle.
     *

	CmdName string // "build", "install", "list", "mod tidy", etc.

	DebugActiongraph  string // -debug-actiongraph flag (undocumented, unstable)
	DebugTrace        string // -debug-trace flag
	DebugRuntimeTrace string // -debug-runtime-trace flag (undocumented, unstable)

	// GoPathError is set when GOPATH is not set. it contains an
	// explanation why GOPATH is unset.
	GoPathError   string
	GOPATHChanged bool

func (r *codeRepo) Versions(ctx context.Context, prefix string) (*Versions, error) {
	// Special case: gopkg.in/macaroon-bakery.v2-unstable
	// does not use the v2 tags (those are for macaroon-bakery.v2).
	// It has no possible tags at all.
	if strings.HasPrefix(r.modPath, "gopkg.in/") && strings.HasSuffix(r.modPath, "-unstable") {
		return &Versions{}, nil
	}

	p := prefix
	if r.codeDir != "" {
		p = r.codeDir + "/" + p
	}

	// If the first disconnected before the last connected, we likely had a network issue.
	if delta <= 0 {
		rx = 0
		errStr = "detected network disconnections, possibly an unstable network"
	}

	globalSiteNetPerfRX.Reset()
	return madmin.SiteNetPerfNodeResult{
		Endpoint:        "",
		TX:              r.n,
		TXTotalDuration: duration,
		RX:              uint64(rx),