[INFO] cloning repository https://github.com/Hakkero-OS/hakkero
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Hakkero-OS/hakkero" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHakkero-OS%2Fhakkero", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHakkero-OS%2Fhakkero'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b8d5095adf5ca5ce4eefab1f94559d7d9e2c652
[INFO] documenting Hakkero-OS/hakkero against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHakkero-OS%2Fhakkero" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Hakkero-OS/hakkero on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-9/source/.cargo/config
[INFO] removed /workspace/builds/worker-9/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/Hakkero-OS/hakkero
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/Hakkero-OS/hakkero
[INFO] tweaked toml for git repo https://github.com/Hakkero-OS/hakkero written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/Hakkero-OS/hakkero already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/yusdacra/bootloader.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smallstr v0.2.0
[INFO] [stderr]   Downloaded pic8259 v0.10.1
[INFO] [stderr]   Downloaded bootloader-locator v0.0.4
[INFO] [stderr]   Downloaded linked_list_allocator v0.9.0
[INFO] [stderr]   Downloaded spinning_top v0.2.4
[INFO] [stderr]   Downloaded font8x8 v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eaa97ee48e34fcd804a8acec88d2d02e215981cc1475719a57e9571863c31b38
[INFO] running `Command { std: "docker" "start" "-a" "eaa97ee48e34fcd804a8acec88d2d02e215981cc1475719a57e9571863c31b38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eaa97ee48e34fcd804a8acec88d2d02e215981cc1475719a57e9571863c31b38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaa97ee48e34fcd804a8acec88d2d02e215981cc1475719a57e9571863c31b38", kill_on_drop: false }`
[INFO] [stdout] eaa97ee48e34fcd804a8acec88d2d02e215981cc1475719a57e9571863c31b38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 752fd9953aa13ec67de3a32eaa64891d85c8bdcf559341b3d81ac2a5f1a5c9ba
[INFO] running `Command { std: "docker" "start" "-a" "752fd9953aa13ec67de3a32eaa64891d85c8bdcf559341b3d81ac2a5f1a5c9ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling x86_64 v0.14.3
[INFO] [stderr]     Checking volatile v0.4.4
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking bit_field v0.9.0
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]    Compiling bootloader v0.10.6 (https://github.com/yusdacra/bootloader.git?branch=fix/dependency-detection#5ebcaa15)
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]     Checking pc-keyboard v0.5.1
[INFO] [stderr]     Checking font8x8 v0.3.1
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking smallstr v0.2.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lock_api-0.4.4/src/lib.rs:91:34
[INFO] [stdout]    |
[INFO] [stdout] 91 | #![cfg_attr(feature = "nightly", feature(const_fn_trait_bound))]
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lock_api` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/bootloader-8359278255e8ec2c/5ebcaa1/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]   --> /opt/rustwide/cargo-home/git/checkouts/bootloader-8359278255e8ec2c/5ebcaa1/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]   --> /opt/rustwide/cargo-home/git/checkouts/bootloader-8359278255e8ec2c/5ebcaa1/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: build failed
[INFO] running `Command { std: "docker" "inspect" "752fd9953aa13ec67de3a32eaa64891d85c8bdcf559341b3d81ac2a5f1a5c9ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "752fd9953aa13ec67de3a32eaa64891d85c8bdcf559341b3d81ac2a5f1a5c9ba", kill_on_drop: false }`
[INFO] [stdout] 752fd9953aa13ec67de3a32eaa64891d85c8bdcf559341b3d81ac2a5f1a5c9ba
