[INFO] cloning repository https://github.com/great-sage-raphael/Vyn_os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/great-sage-raphael/Vyn_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgreat-sage-raphael%2FVyn_os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgreat-sage-raphael%2FVyn_os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2a4d0f867175238a6d163fbe7ad8e9412c7b9311
[INFO] testing great-sage-raphael/Vyn_os against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgreat-sage-raphael%2FVyn_os" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/great-sage-raphael/Vyn_os
[INFO] finished tweaking git repo https://github.com/great-sage-raphael/Vyn_os
[INFO] tweaked toml for git repo https://github.com/great-sage-raphael/Vyn_os written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/great-sage-raphael/Vyn_os on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/great-sage-raphael/Vyn_os already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec51a259e6bb9d8aef574b6b08f8b74669bba55074291d62fff7232a1c2cdf16
[INFO] running `Command { std: "docker" "start" "-a" "ec51a259e6bb9d8aef574b6b08f8b74669bba55074291d62fff7232a1c2cdf16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec51a259e6bb9d8aef574b6b08f8b74669bba55074291d62fff7232a1c2cdf16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec51a259e6bb9d8aef574b6b08f8b74669bba55074291d62fff7232a1c2cdf16", kill_on_drop: false }`
[INFO] [stdout] ec51a259e6bb9d8aef574b6b08f8b74669bba55074291d62fff7232a1c2cdf16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc5ab1a14cc8b7ba6867cf48d70f2c5608b831c524e43e4cc56569ae79c4c3f5
[INFO] running `Command { std: "docker" "start" "-a" "dc5ab1a14cc8b7ba6867cf48d70f2c5608b831c524e43e4cc56569ae79c4c3f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling bootloader v0.9.31
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling rust_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling volatile v0.2.7
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_os` (bin "rust_os") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "dc5ab1a14cc8b7ba6867cf48d70f2c5608b831c524e43e4cc56569ae79c4c3f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc5ab1a14cc8b7ba6867cf48d70f2c5608b831c524e43e4cc56569ae79c4c3f5", kill_on_drop: false }`
[INFO] [stdout] dc5ab1a14cc8b7ba6867cf48d70f2c5608b831c524e43e4cc56569ae79c4c3f5