[INFO] fetching crate tg-rcore-tutorial-2026-T3L3-ch1-virtioblk-wzy 0.1.0-preview.1...
[INFO] testing tg-rcore-tutorial-2026-T3L3-ch1-virtioblk-wzy-0.1.0-preview.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate tg-rcore-tutorial-2026-T3L3-ch1-virtioblk-wzy 0.1.0-preview.1 into /workspace/builds/worker-1-tc2/source
[INFO] removed /workspace/builds/worker-1-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate tg-rcore-tutorial-2026-T3L3-ch1-virtioblk-wzy 0.1.0-preview.1
[INFO] finished tweaking crates.io crate tg-rcore-tutorial-2026-T3L3-ch1-virtioblk-wzy 0.1.0-preview.1
[INFO] tweaked toml for crates.io crate tg-rcore-tutorial-2026-T3L3-ch1-virtioblk-wzy 0.1.0-preview.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tg-rcore-tutorial-2026-T3L3-ch1-virtioblk-wzy 0.1.0-preview.1 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 crates.io crate tg-rcore-tutorial-2026-T3L3-ch1-virtioblk-wzy 0.1.0-preview.1 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] d825cf81325bdeec439e4f60860898d732d55740afe9e7310d8b92b62450ad1b
[INFO] running `Command { std: "docker" "start" "-a" "d825cf81325bdeec439e4f60860898d732d55740afe9e7310d8b92b62450ad1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d825cf81325bdeec439e4f60860898d732d55740afe9e7310d8b92b62450ad1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d825cf81325bdeec439e4f60860898d732d55740afe9e7310d8b92b62450ad1b", kill_on_drop: false }`
[INFO] [stdout] d825cf81325bdeec439e4f60860898d732d55740afe9e7310d8b92b62450ad1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c7f34416933d07eb2bfbfc181d462c3b9410d5279ff4be419b646672817462f5
[INFO] running `Command { std: "docker" "start" "-a" "c7f34416933d07eb2bfbfc181d462c3b9410d5279ff4be419b646672817462f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling riscv v0.11.1
[INFO] [stderr]    Compiling critical-section v1.2.0
[INFO] [stderr]    Compiling embedded-hal v1.0.0
[INFO] [stderr]    Compiling tg-rcore-tutorial-2026-T3L3-ch1-virtioblk-wzy v0.1.0-preview.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling fdt v0.1.5
[INFO] [stderr]    Compiling tg-rcore-tutorial-sbi v0.4.8
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling buddy_system_allocator v0.9.1
[INFO] [stdout] error: invalid instruction mnemonic 'fence'
[INFO] [stdout]    --> src/main.rs:330:31
[INFO] [stdout]     |
[INFO] [stdout] 330 |             core::arch::asm!("fence r, rw");
[INFO] [stdout]     |                               ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: instantiated into assembly here
[INFO] [stdout]    --> <inline asm>:2:2
[INFO] [stdout]     |
[INFO] [stdout]   2 |     fence r, rw
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid instruction mnemonic 'fence'
[INFO] [stdout]    --> src/main.rs:307:31
[INFO] [stdout]     |
[INFO] [stdout] 307 |             core::arch::asm!("fence w, w"); // Ensure desc written before idx
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: instantiated into assembly here
[INFO] [stdout]    --> <inline asm>:2:2
[INFO] [stdout]     |
[INFO] [stdout]   2 |     fence w, w
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid instruction mnemonic 'fence'
[INFO] [stdout]    --> src/main.rs:310:31
[INFO] [stdout]     |
[INFO] [stdout] 310 |             core::arch::asm!("fence w, w"); // Ensure idx written before notify
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: instantiated into assembly here
[INFO] [stdout]    --> <inline asm>:2:2
[INFO] [stdout]     |
[INFO] [stdout]   2 |     fence w, w
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tg-rcore-tutorial-2026-T3L3-ch1-virtioblk-wzy` (bin "tg-rcore-tutorial-2026-T3L3-ch1-virtioblk-wzy") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "c7f34416933d07eb2bfbfc181d462c3b9410d5279ff4be419b646672817462f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7f34416933d07eb2bfbfc181d462c3b9410d5279ff4be419b646672817462f5", kill_on_drop: false }`
[INFO] [stdout] c7f34416933d07eb2bfbfc181d462c3b9410d5279ff4be419b646672817462f5
