testsuite: Mark cgrun057 as fragile on all platforms

I have seen this fail both on x86-64/Debian 9 and armv7/Debian 9

See #17554.
22 jobs for !2405 with wip/fragile-tests in 524 minutes and 12 seconds (queued for 1 second)
detached
Status Job ID Name Coverage
  Lint
passed #229753
lint
ghc-linters

00:00:13

passed #229754
lint
lint-linters

00:00:13

passed #229757
lint
lint-submods-mr

00:00:19

passed #229755
lint
lint-testsuite

00:00:15

passed #229756
lint
typecheck-testsuite

00:00:15

 
  Quick Build
passed #229758
x86_64-linux
hadrian-ghc-in-ghci

00:08:16

 
  Build
passed #229759
x86_64-linux
validate-x86_64-linux-deb9-hadrian

02:57:14

 
  Full Build
failed #229762
aarch64-linux allowed to fail
validate-aarch64-linux-deb9

03:48:07

passed #229763
armv7-linux
validate-armv7-linux-deb9

03:35:01

passed #229764
x86_64-linux
validate-i386-linux-deb9

01:55:28

passed #229761
x86_64-darwin
validate-x86_64-darwin

01:03:50

passed #229765
x86_64-linux
validate-x86_64-linux-deb9-debug

03:58:58

passed #229767
x86_64-linux
validate-x86_64-linux-deb9-dwarf

01:59:43

passed #229766
x86_64-linux
validate-x86_64-linux-deb9-integer-simple

01:04:35

passed #229760
x86_64-linux
validate-x86_64-linux-deb9-unreg-hadrian

04:33:59

passed #229768
x86_64-linux
validate-x86_64-linux-fedora27

02:01:21

failed #229770
x86_64-windows allowed to fail
validate-x86_64-windows

02:58:58

failed #229769
x86_64-windows allowed to fail
validate-x86_64-windows-hadrian

01:30:03

 
  Cleanup
passed #229771
x86_64-darwin
cleanup-darwin

00:00:07

 
  Packaging
passed #229772
x86_64-linux
doc-tarball

00:03:37

 
  Testing
manual #229773
x86_64-linux allowed to fail manual
hackage
passed #229774
x86_64-linux
perf-nofib

00:26:25

 
Name Stage Failure
failed
validate-x86_64-windows-hadrian Full Build
ghc.tar.xz: found 1 matching files                 
WARNING: junit.xml: no matching files
WARNING: Failed to load system CertPool:crypto/x509: system root pool is not available on Windows
Uploading artifacts to coordinator... ok
id=229769 responseStatus=201 Created token=obu8K8ph
Uploading artifacts...
Runtime platform
arch=amd64 os=windows pid=7144 revision=1f513601 version=11.10.1
WARNING: junit.xml: no matching files
ERROR: No files to upload
ERROR: Job failed: exit status 1
failed
validate-x86_64-windows Full Build
junit.xml: found 1 matching files                  
WARNING: Failed to load system CertPool:crypto/x509: system root pool is not available on Windows
Uploading artifacts to coordinator... ok
id=229770 responseStatus=201 Created token=ozJzXUKT
Uploading artifacts...
Runtime platform
arch=amd64 os=windows pid=4252 revision=1f513601 version=11.10.1
junit.xml: found 1 matching files

WARNING: Failed to load system CertPool:crypto/x509: system root pool is not available on Windows
Uploading artifacts to coordinator... ok
id=229770 responseStatus=201 Created token=ozJzXUKT
ERROR: Job failed: exit status 2
failed
validate-aarch64-linux-deb9 Full Build
Uploading artifacts...
ghc-aarch64-linux-deb9.tar.xz: found 1 matching files
junit.xml: found 1 matching files

performance-metrics.tsv: found 1 matching files

Uploading artifacts to coordinator... ok
id=229762 responseStatus=201 Created token=x8vxGzQ3
Uploading artifacts...
junit.xml: found 1 matching files

Uploading artifacts to coordinator... ok
id=229762 responseStatus=201 Created token=x8vxGzQ3
ERROR: Job failed: exit code 1