[INFO] cloning repository https://github.com/luojia65/luojia-os-labs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luojia65/luojia-os-labs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluojia65%2Fluojia-os-labs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluojia65%2Fluojia-os-labs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] efe6c41bc592847b276d61d60c5436b3db637919
[INFO] testing luojia65/luojia-os-labs 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%2Fluojia65%2Fluojia-os-labs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/luojia65/luojia-os-labs
[INFO] finished tweaking git repo https://github.com/luojia65/luojia-os-labs
[INFO] tweaked toml for git repo https://github.com/luojia65/luojia-os-labs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/luojia65/luojia-os-labs 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/luojia65/luojia-os-labs 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] b47d042efd89c52365d2fb4e67c0ecd4231c47595f87b1ad3ebcb8f0d606cebd
[INFO] running `Command { std: "docker" "start" "-a" "b47d042efd89c52365d2fb4e67c0ecd4231c47595f87b1ad3ebcb8f0d606cebd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b47d042efd89c52365d2fb4e67c0ecd4231c47595f87b1ad3ebcb8f0d606cebd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b47d042efd89c52365d2fb4e67c0ecd4231c47595f87b1ad3ebcb8f0d606cebd", kill_on_drop: false }`
[INFO] [stdout] b47d042efd89c52365d2fb4e67c0ecd4231c47595f87b1ad3ebcb8f0d606cebd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 9c1ec0297586d0c090e2249ef388bc4b0f66d5e05e97c82f46670d00397a6a11
[INFO] running `Command { std: "docker" "start" "-a" "9c1ec0297586d0c090e2249ef388bc4b0f66d5e05e97c82f46670d00397a6a11", kill_on_drop: false }`
[INFO] [stderr]    Compiling r0 v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling bit_field v0.10.1
[INFO] [stderr]    Compiling batch-kernel-user v0.1.0 (/opt/rustwide/workdir/01-batch-kernel/user)
[INFO] [stderr]    Compiling yield-batch-kernel-user v0.1.0 (/opt/rustwide/workdir/01a-yield-batch-kern/user)
[INFO] [stderr]    Compiling spin v0.7.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> 01-batch-kernel/user/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `asm` has been stable since 1.59.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> 01-batch-kernel/user/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(asm)]
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `panic_info_message` has been stable since 1.81.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> 01-batch-kernel/user/src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(panic_info_message)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `unwrap` found for struct `PanicMessage<'a>` in the current scope
[INFO] [stdout]   --> 01-batch-kernel/user/src/lib.rs:44:36
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let err = panic_info.message().unwrap().as_str();
[INFO] [stdout]    |                                    ^^^^^^ method not found in `PanicMessage<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `batch-kernel-user` (lib) due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9c1ec0297586d0c090e2249ef388bc4b0f66d5e05e97c82f46670d00397a6a11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c1ec0297586d0c090e2249ef388bc4b0f66d5e05e97c82f46670d00397a6a11", kill_on_drop: false }`
[INFO] [stdout] 9c1ec0297586d0c090e2249ef388bc4b0f66d5e05e97c82f46670d00397a6a11
