ci: Clear unused /msan/llvm-project #30369

Could help to fix the no space left on device that are sometimes seen.

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Ref: https://cirrus-ci.com/task/5394417295556608?logs=ci#L8647

Error: committing container for step {Env:[FILE_ENV=./ci/test/00_setup_env_native_msan.sh PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin] Command:run Args:[bash -c cd /ci_container_base/ && set -o errexit && source ./ci/test/00_setup_env.sh && ./ci/test/01_base_install.sh] Flags:[] Attrs:map[json:true] Message:RUN bash -c cd /ci_container_base/ && set -o errexit && source ./ci/test/00_setup_env.sh && ./ci/test/01_base_install.sh Original:RUN ["bash", "-c", "cd /ci_container_base/ && set -o errexit && source ./ci/test/00_setup_env.sh && ./ci/test/01_base_install.sh"]}: copying layers and metadata for container "f35a5e63978cc691cb69690293f1f3522acef4e867af1ceb48c02c832ae0522c": writing blob: adding layer with blob "sha256:84db50a40abcc65940e24ce0a99b1fbd48c19aa3d290e3720cd04619b446959a": processing tar file(write /msan/llvm-project/llvm/test/CodeGen/AMDGPU/branch-relaxation.ll: no space left on device): exit status 1

cc @hebasto

Concept ACK.

utACK fa6beb8cfcabd58273f15e03f781016ac610e788

Could delete the sdk tarball as well.

Could delete the sdk tarball as well.

IIRC it is only 77M and a volume (https://github.com/bitcoin/bitcoin/blob/0bd2bd1efb4b88d7f9eb9a1203560d69e07d97c3/ci/test/02_run_container.sh#L30), so it should only consume the 77M once per machine, regardless of whether an image is re-generated or not.

For me, msan is the largest image locally so far:

 podman image ls 'localhost/ci_*'
REPOSITORY                                     TAG         IMAGE ID      CREATED      SIZE
localhost/ci_native_asan                       latest      1ae3884f0bd3  6 days ago   1.81 GB
localhost/ci_native_valgrind                   latest      fa2461c0e0d5  2 weeks ago  1.36 GB
localhost/ci_native_fuzz_msan                  latest      682198747e18  2 weeks ago  6.02 GB
localhost/ci_native_fuzz_valgrind              latest      84fec02871f5  2 weeks ago  1.28 GB
localhost/ci_macos_cross                       latest      49b2d3ad6d04  2 weeks ago  1.62 GB
localhost/ci_s390x                             latest      d5fe9fb0978a  2 weeks ago  539 MB
localhost/ci_native_msan                       latest      901b867ade25  2 weeks ago  6.02 GB
localhost/ci_native_tidy                       latest      15fed375c141  2 weeks ago  2.64 GB
localhost/ci_win64                             latest      5e2364ec8c8c  2 weeks ago  2.61 GB
localhost/ci_native_previous_releases          latest      c8feaac3f9ea  2 weeks ago  537 MB
localhost/ci_native_nowallet_libbitcoinkernel  latest      951fd4615e36  2 weeks ago  909 MB
localhost/ci_native_fuzz                       latest      4875a0dcc4c7  2 weeks ago  1.21 GB
localhost/ci_i686_centos                       latest      a331b16f0046  3 weeks ago  704 MB
localhost/ci_arm_linux                         latest      34961f67c7ab  3 weeks ago  892 MB
localhost/ci_native_tsan                       latest      9d7b28339df2  3 weeks ago  1.05 GB
localhost/ci_i686_multiprocess                 latest      7e3205a702fd  3 weeks ago  1.08 GB

ACK fa6beb8cfcabd58273f15e03f781016ac610e788

https://cirrus-ci.com/task/5273350220546048:

+ du -sh /msan/llvm-project
2.1G	/msan/llvm-project
+ rm -rf /msan/llvm-project