containerd fails to build

[Tanguy Le Carrour <tanguy@bioneland.org>]

Hi Guix!

containerd fails to build on my system! :-(

```
❯ sudo guix system reconfigure ~/config/system.config.scm
Password:
building /gnu/store/gal5f2xm3476jvfpf2x91hjrp4ccj36i-containerd-1.2.5.drv...
- 'check' phasebuilder for `/gnu/store/gal5f2xm3476jvfpf2x91hjrp4ccj36i-containerd-1.2.5.drv' failed with exit code 1
build of /gnu/store/gal5f2xm3476jvfpf2x91hjrp4ccj36i-containerd-1.2.5.drv failed
View build log at '/var/log/guix/drvs/ga/l5f2xm3476jvfpf2x91hjrp4ccj36i-containerd-1.2.5.drv.bz2'.
guix system: error: build of `/gnu/store/gal5f2xm3476jvfpf2x91hjrp4ccj36i-containerd-1.2.5.drv' failed
```

I checked out the latest Guix version and ran:

```
❯ ./pre-inst-env guix build containerd
```

but this ends up with:

```
...
phase `build' succeeded after 17.3 seconds
starting phase `check'
flag provided but not defined: -test.testlogfile
Usage of /tmp/guix-build-containerd-1.2.5.drv-0/go-build772692618/b001/containerd.test:
  -address string
    	The address to the containerd socket for use in the tests (default "/run/containerd-test/containerd.sock")
  -no-criu
    	Do not run the checkpoint tests
  -no-daemon
    	Do not start a dedicated daemon for the tests
  -test.root
    	enable tests that require root
FAIL	github.com/containerd/containerd	0.004s
FAIL
command "go" "test" "github.com/containerd/containerd" failed with status 1
```

Any idea?!

-- 
Tanguy