[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 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate tg-rcore-tutorial-2026-T3L3-ch1-virtioblk-wzy 0.1.0-preview.1 into /workspace/builds/worker-7-tc2/source
[INFO] removed /workspace/builds/worker-7-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-7-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-7-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 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] f7aec97a28db1eb2b85622334c19913e94170522a2963fa043adb6b685f0ff6c
[INFO] running `Command { std: "docker" "start" "f7aec97a28db1eb2b85622334c19913e94170522a2963fa043adb6b685f0ff6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7aec97a28db1eb2b85622334c19913e94170522a2963fa043adb6b685f0ff6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f7aec97a28db1eb2b85622334c19913e94170522a2963fa043adb6b685f0ff6c" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7aec97a28db1eb2b85622334c19913e94170522a2963fa043adb6b685f0ff6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f7aec97a28db1eb2b85622334c19913e94170522a2963fa043adb6b685f0ff6c" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", 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] [stderr] warning: unused dependency `buddy_system_allocator`
[INFO] [stderr]  --> Cargo.toml:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | [dependencies.buddy_system_allocator]
[INFO] [stderr]   |               ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `buddy_system_allocator`
[INFO] [stderr] warning: unused dependency `riscv`
[INFO] [stderr]   --> Cargo.toml:11:15
[INFO] [stderr]    |
[INFO] [stderr] 11 | [dependencies.riscv]
[INFO] [stderr]    |               ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `riscv`
[INFO] [stderr] warning: `tg-rcore-tutorial-2026-T3L3-ch1-virtioblk-wzy` (manifest) generated 2 warnings
[INFO] running `Command { std: "docker" "inspect" "f7aec97a28db1eb2b85622334c19913e94170522a2963fa043adb6b685f0ff6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7aec97a28db1eb2b85622334c19913e94170522a2963fa043adb6b685f0ff6c", kill_on_drop: false }`
[INFO] [stdout] f7aec97a28db1eb2b85622334c19913e94170522a2963fa043adb6b685f0ff6c
