[INFO] cloning repository https://github.com/ogbcode/rustkerneldev
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ogbcode/rustkerneldev" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fogbcode%2Frustkerneldev", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fogbcode%2Frustkerneldev'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f48b3ae18f0e9808c39fae9902d2dac309fff942
[INFO] testing ogbcode/rustkerneldev against beta-2025-10-28 for beta-1.92-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fogbcode%2Frustkerneldev" "/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/ogbcode/rustkerneldev
[INFO] finished tweaking git repo https://github.com/ogbcode/rustkerneldev
[INFO] tweaked toml for git repo https://github.com/ogbcode/rustkerneldev written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ogbcode/rustkerneldev on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ogbcode/rustkerneldev 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 34 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v2.10.0
[INFO] [stderr]       Adding bootloader-boot-config v0.11.12
[INFO] [stderr]       Adding bootloader-x86_64-common v0.11.12
[INFO] [stderr]     Updating bootloader_api v0.11.3 -> v0.11.12
[INFO] [stderr]       Adding conquer-once v0.3.2
[INFO] [stderr]       Adding conquer-util v0.3.0
[INFO] [stderr]       Adding either v1.15.0
[INFO] [stderr]       Adding good_memory_allocator v0.1.7
[INFO] [stderr]       Adding lazy_static v1.5.0
[INFO] [stderr]       Adding lock_api v0.4.14
[INFO] [stderr]       Adding log v0.4.28
[INFO] [stderr]       Adding noto-sans-mono-bitmap v0.2.0 (available: v0.3.1)
[INFO] [stderr]       Adding pc-keyboard v0.5.1 (available: v0.8.0)
[INFO] [stderr]       Adding pic8259 v0.10.4 (available: v0.11.0)
[INFO] [stderr]       Adding proc-macro2 v1.0.103
[INFO] [stderr]       Adding quote v1.0.41
[INFO] [stderr]       Adding rand v0.8.5
[INFO] [stderr]       Adding rand_core v0.6.4
[INFO] [stderr]       Adding rand_hc v0.3.2
[INFO] [stderr]       Adding raw-cpuid v10.7.0
[INFO] [stderr]       Adding scopeguard v1.2.0
[INFO] [stderr]       Adding serde v1.0.228
[INFO] [stderr]       Adding serde_core v1.0.228
[INFO] [stderr]       Adding serde_derive v1.0.228
[INFO] [stderr]       Adding spin v0.9.8 (available: v0.10.0)
[INFO] [stderr]       Adding spinning_top v0.2.5
[INFO] [stderr]       Adding syn v2.0.108
[INFO] [stderr]       Adding uart_16550 v0.3.2
[INFO] [stderr]       Adding unicode-ident v1.0.22
[INFO] [stderr]       Adding usize_conversions v0.2.0
[INFO] [stderr]       Adding x86 v0.52.0
[INFO] [stderr]       Adding x86_64 v0.15.2
[INFO] [stderr]       Adding xmas-elf v0.8.0
[INFO] [stderr]       Adding zero v0.1.3
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb930d2197fbe6b1d3b62d8f143297723a6462799395c84b683b332d11ec4269
[INFO] running `Command { std: "docker" "start" "-a" "eb930d2197fbe6b1d3b62d8f143297723a6462799395c84b683b332d11ec4269", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb930d2197fbe6b1d3b62d8f143297723a6462799395c84b683b332d11ec4269", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb930d2197fbe6b1d3b62d8f143297723a6462799395c84b683b332d11ec4269", kill_on_drop: false }`
[INFO] [stdout] eb930d2197fbe6b1d3b62d8f143297723a6462799395c84b683b332d11ec4269
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0da1ec5de87df9474c3a600bd6573988aa19b2664dc8a601d608b28582c179a
[INFO] running `Command { std: "docker" "start" "-a" "c0da1ec5de87df9474c3a600bd6573988aa19b2664dc8a601d608b28582c179a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]    Compiling bit_field v0.10.2
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling x86 v0.52.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling volatile v0.4.6
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling bootloader_api v0.11.12
[INFO] [stderr]    Compiling bitflags v2.10.0
[INFO] [stderr]    Compiling zero v0.1.3
[INFO] [stderr]    Compiling conquer-util v0.3.0
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling raw-cpuid v10.7.0
[INFO] [stderr]    Compiling usize_conversions v0.2.0
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/usize_conversions-0.2.0/src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(i128_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `i128_type` has been stable since `1.26.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `usize_conversions` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c0da1ec5de87df9474c3a600bd6573988aa19b2664dc8a601d608b28582c179a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0da1ec5de87df9474c3a600bd6573988aa19b2664dc8a601d608b28582c179a", kill_on_drop: false }`
[INFO] [stdout] c0da1ec5de87df9474c3a600bd6573988aa19b2664dc8a601d608b28582c179a