[INFO] cloning repository https://github.com/rust-osdev/bootloader
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-osdev/bootloader" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-osdev%2Fbootloader", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-osdev%2Fbootloader'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2bdc5ac8e0fd658cc30aecbe7b0aed8d1521cb04
[INFO] testing rust-osdev/bootloader against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-osdev%2Fbootloader" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rust-osdev/bootloader on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-6/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/rust-osdev/bootloader
[INFO] finished tweaking git repo https://github.com/rust-osdev/bootloader
[INFO] tweaked toml for git repo https://github.com/rust-osdev/bootloader written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/rust-osdev/bootloader already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xmas-elf v0.6.2
[INFO] [stderr]   Downloaded uefi-macros v0.3.3
[INFO] [stderr]   Downloaded rsdp v1.1.0
[INFO] [stderr]   Downloaded spinning_top v0.2.4
[INFO] [stderr]   Downloaded argh_shared v0.1.4
[INFO] [stderr]   Downloaded fatfs v0.3.5
[INFO] [stderr]   Downloaded json v0.12.4
[INFO] [stderr]   Downloaded bootloader-locator v0.0.4
[INFO] [stderr]   Downloaded locate-cargo-manifest v0.2.2
[INFO] [stderr]   Downloaded anyhow v1.0.40
[INFO] [stderr]   Downloaded gpt v2.0.0
[INFO] [stderr]   Downloaded ucs2 v0.3.2
[INFO] [stderr]   Downloaded conquer-util v0.2.0
[INFO] [stderr]   Downloaded argh v0.1.4
[INFO] [stderr]   Downloaded bit_field v0.10.1
[INFO] [stderr]   Downloaded volatile v0.4.4
[INFO] [stderr]   Downloaded x86_64 v0.14.2
[INFO] [stderr]   Downloaded uart_16550 v0.2.14
[INFO] [stderr]   Downloaded displaydoc v0.1.7
[INFO] [stderr]   Downloaded usize_conversions v0.2.0
[INFO] [stderr]   Downloaded x86_64 v0.13.6
[INFO] [stderr]   Downloaded conquer-once v0.2.1
[INFO] [stderr]   Downloaded font8x8 v0.2.7
[INFO] [stderr]   Downloaded llvm-tools v0.1.1
[INFO] [stderr]   Downloaded argh_derive v0.1.4
[INFO] [stderr]   Downloaded uefi v0.11.0
[INFO] [stderr]   Downloaded zero v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] afeb4b28c7856eda802b9bb7f178a72802424b46263b5d66734175e49f905945
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "afeb4b28c7856eda802b9bb7f178a72802424b46263b5d66734175e49f905945", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afeb4b28c7856eda802b9bb7f178a72802424b46263b5d66734175e49f905945", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afeb4b28c7856eda802b9bb7f178a72802424b46263b5d66734175e49f905945", kill_on_drop: false }`
[INFO] [stdout] afeb4b28c7856eda802b9bb7f178a72802424b46263b5d66734175e49f905945
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a22cd1c9fe159412ad317dfe8605801aade6abe5527f6a2b8ec1b3ee8a1d73ba
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a22cd1c9fe159412ad317dfe8605801aade6abe5527f6a2b8ec1b3ee8a1d73ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling bootloader v0.10.8 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:69:1
[INFO] [stdout]    |
[INFO] [stdout] 69 | #![feature(asm)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:70:1
[INFO] [stdout]    |
[INFO] [stdout] 70 | #![feature(maybe_uninit_extra)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:71:1
[INFO] [stdout]    |
[INFO] [stdout] 71 | #![feature(maybe_uninit_slice)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bootloader` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "a22cd1c9fe159412ad317dfe8605801aade6abe5527f6a2b8ec1b3ee8a1d73ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a22cd1c9fe159412ad317dfe8605801aade6abe5527f6a2b8ec1b3ee8a1d73ba", kill_on_drop: false }`
[INFO] [stdout] a22cd1c9fe159412ad317dfe8605801aade6abe5527f6a2b8ec1b3ee8a1d73ba