Complete platform tools cache by making temp crate a SBPF program

[billythedummy]

Description

Building off #202

#202 downloads the platform tools, but cargo build-sbf appears to run further setup steps when it tries to compile a SBPF program for the first time. These further setup steps involve downloading criterion and switching out the toolchain. Dump of stdout is pasted in appendix section below for visibility.

This PR makes sure that those setup steps are ran as well by marking the temp/ repo as a SBPF program by setting

[lib]
crate-type = ["cdylib", "lib"]

in Cargo.toml.

Other

• cleans up temp/ folder by cd ../ before removing it
• change cargo build-sbf to cargo test-sbf in case the test step performs any additional setup (doesn't look like it does)

P.S. the bash command is getting a little unwieldy, idk if you guys want to factor it out into a bash script or something like that.

P.P.S the right thing to do would probably be to further figure out why the initial setup involves downloading a criterion release. Seems wholly unnecessary.

Appendix: setup stdout dump

+ wget https://github.com/Snaipe/Criterion/releases/download/v2.3.3/criterion-v2.3.3-linux-x86_64.tar.bz2 -O criterion-v2.3.3-linux-x86_64.tar.bz2 --progress=dot:giga --retry-connrefused --read-timeout=30
--2025-11-18 08:34:59--  https://github.com/Snaipe/Criterion/releases/download/v2.3.3/criterion-v2.3.3-linux-x86_64.tar.bz2
Resolving github.com (github.com)... 20.205.243.166
Connecting to github.com (github.com)|20.205.243.166|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://release-assets.githubusercontent.com/github-production-release-asset/30111969/98b27400-e1f1-11e8-8f10-e43f4ef84b92?sp=r&sv=2018-11-09&sr=b&spr=https&se=2025-11-18T09%3A20%3A47Z&rscd=attachment%3B+filename%3Dcriterion-v2.3.3-linux-x86_64.tar.bz2&rsct=application%2Foctet-stream&skoid=96c2d410-5711-43a1-aedd-ab1947aa7ab0&sktid=398a6654-997b-47e9-b12b-9515b896b4de&skt=2025-11-18T08%3A20%3A42Z&ske=2025-11-18T09%3A20%3A47Z&sks=b&skv=2018-11-09&sig=JR9I5t4cCOsqtCWs2f7kwky%2BP0Xeru0IX1ZzSicmQms%3D&jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmVsZWFzZS1hc3NldHMuZ2l0aHVidXNlcmNvbnRlbnQuY29tIiwia2V5Ijoia2V5MSIsImV4cCI6MTc2MzQ1NTE5OSwibmJmIjoxNzYzNDU0ODk5LCJwYXRoIjoicmVsZWFzZWFzc2V0cHJvZHVjdGlvbi5ibG9iLmNvcmUud2luZG93cy5uZXQifQ.95LsZcQ8RbLyMZ7pTrICIDBZ6oiLSX7dd254GTzTXpw&response-content-disposition=attachment%3B%20filename%3Dcriterion-v2.3.3-linux-x86_64.tar.bz2&response-content-type=application%2Foctet-stream [following]
--2025-11-18 08:35:00--  https://release-assets.githubusercontent.com/github-production-release-asset/30111969/98b27400-e1f1-11e8-8f10-e43f4ef84b92?sp=r&sv=2018-11-09&sr=b&spr=https&se=2025-11-18T09%3A20%3A47Z&rscd=attachment%3B+filename%3Dcriterion-v2.3.3-linux-x86_64.tar.bz2&rsct=application%2Foctet-stream&skoid=96c2d410-5711-43a1-aedd-ab1947aa7ab0&sktid=398a6654-997b-47e9-b12b-9515b896b4de&skt=2025-11-18T08%3A20%3A42Z&ske=2025-11-18T09%3A20%3A47Z&sks=b&skv=2018-11-09&sig=JR9I5t4cCOsqtCWs2f7kwky%2BP0Xeru0IX1ZzSicmQms%3D&jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmVsZWFzZS1hc3NldHMuZ2l0aHVidXNlcmNvbnRlbnQuY29tIiwia2V5Ijoia2V5MSIsImV4cCI6MTc2MzQ1NTE5OSwibmJmIjoxNzYzNDU0ODk5LCJwYXRoIjoicmVsZWFzZWFzc2V0cHJvZHVjdGlvbi5ibG9iLmNvcmUud2luZG93cy5uZXQifQ.95LsZcQ8RbLyMZ7pTrICIDBZ6oiLSX7dd254GTzTXpw&response-content-disposition=attachment%3B%20filename%3Dcriterion-v2.3.3-linux-x86_64.tar.bz2&response-content-type=application%2Foctet-stream
Resolving release-assets.githubusercontent.com (release-assets.githubusercontent.com)... 185.199.109.133, 185.199.108.133, 185.199.111.133, ...
Connecting to release-assets.githubusercontent.com (release-assets.githubusercontent.com)|185.199.109.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 677858 (662K) [application/octet-stream]
Saving to: 'criterion-v2.3.3-linux-x86_64.tar.bz2'

     0K                                    100% 10.7M=0.06s

2025-11-18 08:35:00 (10.7 MB/s) - 'criterion-v2.3.3-linux-x86_64.tar.bz2' saved [677858/677858]

+ tar --strip-components 1 -jxf criterion-v2.3.3-linux-x86_64.tar.bz2
+ ./platform-tools/rust/bin/rustc --version
+ ./platform-tools/rust/bin/rustc --print sysroot
+ [[ 5 -lt 4 ]]
+ mapfile -t toolchains
++ rustup toolchain list
+ set +e
+ for item in "${toolchains[@]}"
+ [[ 1.89.0-sbpf-solana-v1.52 == *\s\o\l\a\n\a* ]]
+ rustup toolchain uninstall 1.89.0-sbpf-solana-v1.52
info: uninstalling toolchain '1.89.0-sbpf-solana-v1.52'
info: toolchain '1.89.0-sbpf-solana-v1.52' uninstalled
+ for item in "${toolchains[@]}"
+ [[ 1.89.0-x86_64-unknown-linux-gnu (active, default) == *\s\o\l\a\n\a* ]]
+ set -e
+ rustup toolchain link 1.89.0-sbpf-solana-v1.52 platform-tools/rust
+ exit 0

[montana64]

https://github.com/Ellipsis-Labs/solana-verifiable-build/tree/d3811efeb651de2bd08a6d24112bb6d34b32cc3a