[INFO] cloning repository https://github.com/0AC0/krt2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0AC0/krt2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0AC0%2Fkrt2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0AC0%2Fkrt2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 82a545efc5c7eaaa24e7a5a3dbdc3c8de689ffe6
[INFO] documenting 0AC0/krt2 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0AC0%2Fkrt2" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/0AC0/krt2 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/0AC0/krt2
[INFO] finished tweaking git repo https://github.com/0AC0/krt2
[INFO] tweaked toml for git repo https://github.com/0AC0/krt2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/0AC0/krt2 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uart_16550 v0.2.18
[INFO] [stderr]   Downloaded riscv-rt-macros v0.2.0
[INFO] [stderr]   Downloaded r0 v1.0.0
[INFO] [stderr]   Downloaded riscv-target v0.1.2
[INFO] [stderr]   Downloaded fdt v0.1.5
[INFO] [stderr]   Downloaded x86_64 v0.14.10
[INFO] [stderr]   Downloaded micromath v2.0.0
[INFO] [stderr]   Downloaded tinybmp v0.5.0
[INFO] [stderr]   Downloaded embedded-graphics v0.8.0
[INFO] [stderr]   Downloaded volatile v0.4.6
[INFO] [stderr]   Downloaded riscv-rt v0.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1114718cf5db32c435298c5590cab0e37ee3fb062c37ae6f55519c7bc127d25b
[INFO] running `Command { std: "docker" "start" "-a" "1114718cf5db32c435298c5590cab0e37ee3fb062c37ae6f55519c7bc127d25b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1114718cf5db32c435298c5590cab0e37ee3fb062c37ae6f55519c7bc127d25b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1114718cf5db32c435298c5590cab0e37ee3fb062c37ae6f55519c7bc127d25b", kill_on_drop: false }`
[INFO] [stdout] 1114718cf5db32c435298c5590cab0e37ee3fb062c37ae6f55519c7bc127d25b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b5b23d81a33e57840b19a8f909c61deaaf69c9ef3aad98b8fe86a799f71933e
[INFO] running `Command { std: "docker" "start" "-a" "5b5b23d81a33e57840b19a8f909c61deaaf69c9ef3aad98b8fe86a799f71933e", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling regex-syntax v0.7.2
[INFO] [stderr]     Checking bit_field v0.10.2
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling riscv v0.10.1
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]     Checking volatile v0.4.6
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking micromath v2.0.0
[INFO] [stderr]     Checking critical-section v1.1.1
[INFO] [stderr]    Compiling aho-corasick v1.0.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking embedded-graphics-core v0.4.0
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]    Compiling krt2 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking r0 v1.0.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking fdt v0.1.5
[INFO] [stderr]     Checking x86_64 v0.14.10
[INFO] [stderr]     Checking embedded-graphics v0.8.0
[INFO] [stderr]    Compiling regex v1.8.4
[INFO] [stderr]     Checking uart_16550 v0.2.18
[INFO] [stderr]    Compiling riscv-target v0.1.2
[INFO] [stderr]     Checking tinybmp v0.5.0
[INFO] [stderr]    Compiling riscv-rt v0.11.0
[INFO] [stderr]    Compiling riscv-rt-macros v0.2.0
[INFO] [stderr]  Documenting krt2 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(panic_info_message)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(atomic_from_mut)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 document `krt2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type bin --crate-name krt2 src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=938e81c098ef7f7c -L dependency=/opt/rustwide/target/debug/deps --extern embedded_graphics=/opt/rustwide/target/debug/deps/libembedded_graphics-6cc727436ec1bdae.rmeta --extern fdt=/opt/rustwide/target/debug/deps/libfdt-02665c23eba5dea3.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-6d2a33c49de0f4a0.rmeta --extern riscv=/opt/rustwide/target/debug/deps/libriscv-3f1ce17fcdcc236a.rmeta --extern riscv_rt=/opt/rustwide/target/debug/deps/libriscv_rt-b3fc6bb5d17c833f.rmeta --extern spin=/opt/rustwide/target/debug/deps/libspin-00ac1ba283a83e09.rmeta --extern tinybmp=/opt/rustwide/target/debug/deps/libtinybmp-59f4c136c2deddb5.rmeta --extern uart_16550=/opt/rustwide/target/debug/deps/libuart_16550-0133cdb804297587.rmeta --cap-lints=warn --crate-version 0.2.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "5b5b23d81a33e57840b19a8f909c61deaaf69c9ef3aad98b8fe86a799f71933e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b5b23d81a33e57840b19a8f909c61deaaf69c9ef3aad98b8fe86a799f71933e", kill_on_drop: false }`
[INFO] [stdout] 5b5b23d81a33e57840b19a8f909c61deaaf69c9ef3aad98b8fe86a799f71933e
