runtime error: index out of range (warningServerTypeDeprecated)

[frivoire]

Description:

The CLI is "buggy", at least for my instance, cf below:

How to reproduce:

scw instance server get bd7de168-a479-4793-aa99-ddc7609fe315

Expected Behavior

It should return the details of my instance, without error ;)

Actual Behavior

But it just returns an error:

runtime error: index out of range [0] with length 0
stacktrace from panic:
goroutine 1 [running]:
runtime/debug.Stack()
        /opt/hostedtoolcache/go/1.26.4/x64/src/runtime/debug/stack.go:26 +0x5e
main.cleanup(0xf041a33d600)
        /home/runner/work/scaleway-cli/scaleway-cli/cmd/scw/main.go:45 +0xc5
panic({0x2393ae0?, 0xf041a2e3d70?})
        /opt/hostedtoolcache/go/1.26.4/x64/src/runtime/panic.go:860 +0x13a
github.com/scaleway/scaleway-cli/v2/internal/namespaces/instance/v1.warningServerTypeDeprecated({0x21b0920?, 0xf041a6070a8?}, 0xf041a718570?, 0xf0419f9f4a0)
        /home/runner/work/scaleway-cli/scaleway-cli/internal/namespaces/instance/v1/helpers_types.go:70 +0x9d
github.com/scaleway/scaleway-cli/v2/internal/namespaces/instance/v1.serverGetBuilder.func2({0x2608868, 0xf041a251a70}, {0x1fa9de0?, 0xf041a783cc0?}, 0x0?)
        /home/runner/work/scaleway-cli/scaleway-cli/internal/namespaces/instance/v1/custom_server.go:573 +0x8db
github.com/scaleway/scaleway-cli/v2/core.run.CombineCommandInterceptor.func3.1({0x2608868?, 0xf041a251a70?}, {0x0?, 0xf041a298008?})
        /home/runner/work/scaleway-cli/scaleway-cli/core/command_interceptor.go:34 +0x2e
github.com/scaleway/scaleway-cli/v2/core.sdkStdTypeInterceptor({0x2608868, 0xf041a251a70}, {0x1fa9de0?, 0xf041a783cc0?}, 0x48c929?)
        /home/runner/work/scaleway-cli/scaleway-cli/core/command_interceptor.go:150 +0x2f
github.com/scaleway/scaleway-cli/v2/core.run.CombineCommandInterceptor.func3.1({0x2608868?, 0xf041a251a70?}, {0x5333ef?, 0xf041a718540?})
        /home/runner/work/scaleway-cli/scaleway-cli/core/command_interceptor.go:34 +0x2e
github.com/scaleway/scaleway-cli/v2/core.sdkStdErrorInterceptor({0x2608868?, 0xf041a251a70?}, {0x1fa9de0?, 0xf041a783cc0?}, 0x28?)
        /home/runner/work/scaleway-cli/scaleway-cli/core/command_interceptor.go:49 +0x46
github.com/scaleway/scaleway-cli/v2/core.run.CombineCommandInterceptor.func3({0x2608868, 0xf041a251a70}, {0x1fa9de0, 0xf041a783cc0}, 0xf041a7e32c0)
        /home/runner/work/scaleway-cli/scaleway-cli/core/command_interceptor.go:30 +0xb9
github.com/scaleway/scaleway-cli/v2/core.run.CombineCommandInterceptor.func3({0x2608868, 0xf041a251a70}, {0x1fa9de0, 0xf041a783cc0}, 0xf041a785530)
        /home/runner/work/scaleway-cli/scaleway-cli/core/command_interceptor.go:30 +0xb9
github.com/scaleway/scaleway-cli/v2/core.run({0x2608868, 0xf041a251a70}, 0xf041a156608, 0xf0419f05a20, {0xf041a783ca0, 0x2, 0x2})
        /home/runner/work/scaleway-cli/scaleway-cli/core/cobra_utils.go:213 +0x3c4
github.com/scaleway/scaleway-cli/v2/core.(*cobraBuilder).hydrateCobra.cobraRun.func3(0xf041a156608, {0xf041a784ff0, 0x1, 0x1})
        /home/runner/work/scaleway-cli/scaleway-cli/core/cobra_utils.go:131 +0x8b8
github.com/spf13/cobra.(*Command).execute(0xf041a156608, {0xf041a784fb0, 0x1, 0x1})
        /home/runner/go/pkg/mod/github.com/spf13/cobra@v1.10.2/command.go:1015 +0xb14
github.com/spf13/cobra.(*Command).ExecuteC(0xf0419f96608)
        /home/runner/go/pkg/mod/github.com/spf13/cobra@v1.10.2/command.go:1148 +0x465
github.com/spf13/cobra.(*Command).Execute(...)
        /home/runner/go/pkg/mod/github.com/spf13/cobra@v1.10.2/command.go:1071
github.com/scaleway/scaleway-cli/v2/core.Bootstrap({0x2608830, 0x3abe2a0}, 0xf041a607e68)
        /home/runner/work/scaleway-cli/scaleway-cli/core/bootstrap.go:281 +0x126c
main.mainNoExit()
        /home/runner/work/scaleway-cli/scaleway-cli/cmd/scw/main.go:87 +0x3b2
main.main()
        /home/runner/work/scaleway-cli/scaleway-cli/cmd/scw/main.go:68 +0x13

runtime error: index out of range [0] with length 0%  

Version

Version          2.56.3
BuildDate        2026-06-09T10:18:17Z
GoVersion        go1.26.4
GitBranch        HEAD
GitCommit        94a66f7a
GoArch           amd64
GoOS             linux
UserAgentPrefix  scaleway-cli

(inside WSL)

Don't hesitate to ask if you need more info

[frivoire]

I'm pretty bad at golang (and unfamiliar with scw-cli), so I asked a good "friend" (called Claude) who proposed me this: #5683

[remyleone]

Have you done anything with your instance? I cannot reproduce on my side.