[INFO] cloning repository https://github.com/MarkusAkesson/rost
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MarkusAkesson/rost" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarkusAkesson%2Frost", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarkusAkesson%2Frost'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a63dc0d44a0e49649c54c9b91339dcfc343b41c0
[INFO] documenting MarkusAkesson/rost against 1.76.0 for beta-1.77-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarkusAkesson%2Frost" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MarkusAkesson/rost on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1-tc1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/MarkusAkesson/rost
[INFO] finished tweaking git repo https://github.com/MarkusAkesson/rost
[INFO] tweaked toml for git repo https://github.com/MarkusAkesson/rost written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/rust-embedded/riscv.git`
[INFO] [stderr]     Updating git repository `https://github.com/rust-embedded/riscv-rt.git`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded embedded-hal v1.0.0
[INFO] [stderr]   Downloaded critical-section v1.1.2
[INFO] [stderr]   Downloaded riscv v0.10.1
[INFO] [stderr]   Downloaded nb v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 996b841dbc1ea6bf352b0c2cbc3e3dd093a9ec095302fad2ee159e13a0dc648a
[INFO] running `Command { std: "docker" "start" "-a" "996b841dbc1ea6bf352b0c2cbc3e3dd093a9ec095302fad2ee159e13a0dc648a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "996b841dbc1ea6bf352b0c2cbc3e3dd093a9ec095302fad2ee159e13a0dc648a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "996b841dbc1ea6bf352b0c2cbc3e3dd093a9ec095302fad2ee159e13a0dc648a", kill_on_drop: false }`
[INFO] [stdout] 996b841dbc1ea6bf352b0c2cbc3e3dd093a9ec095302fad2ee159e13a0dc648a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2a91a83a5a8898834a4f4151131004acb57bf7f80c99ad2a49962c0cf28363f
[INFO] running `Command { std: "docker" "start" "-a" "a2a91a83a5a8898834a4f4151131004acb57bf7f80c99ad2a49962c0cf28363f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]     Checking nb v1.1.0
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]    Compiling riscv v0.10.1
[INFO] [stderr]     Checking critical-section v1.1.2
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking bit_field v0.10.2
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling riscv v0.11.1 (https://github.com/rust-embedded/riscv.git#527b27d9)
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling indexmap v2.2.3
[INFO] [stderr]     Checking embedded-hal v1.0.0
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling rost v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking volatile v0.2.7
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling regex-automata v0.4.5
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling regex v1.10.3
[INFO] [stderr]    Compiling riscv-target v0.1.2
[INFO] [stderr]    Compiling riscv-rt-macros v0.2.0 (https://github.com/rust-embedded/riscv-rt.git#f7b4f6ec)
[INFO] [stderr]    Compiling num_enum_derive v0.5.11
[INFO] [stderr]    Compiling riscv-rt v0.11.0 (https://github.com/rust-embedded/riscv-rt.git#f7b4f6ec)
[INFO] [stderr]  Documenting rost v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(panic_info_message)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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 document `rost`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type lib --crate-name rost src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=2a62bac929f76e86 -L dependency=/opt/rustwide/target/debug/deps --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-0ce58a39040c3e77.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-c2b9fe8f0bb60ac5.rmeta --extern num_enum_derive=/opt/rustwide/target/debug/deps/libnum_enum_derive-d244329103d80d1d.so --extern riscv=/opt/rustwide/target/debug/deps/libriscv-2e9aff179cbeada9.rmeta --extern riscv_rt=/opt/rustwide/target/debug/deps/libriscv_rt-66d7a57120687d37.rmeta --extern spin=/opt/rustwide/target/debug/deps/libspin-22dce740b2fdeb24.rmeta --extern volatile=/opt/rustwide/target/debug/deps/libvolatile-908048e868b0c28b.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "a2a91a83a5a8898834a4f4151131004acb57bf7f80c99ad2a49962c0cf28363f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2a91a83a5a8898834a4f4151131004acb57bf7f80c99ad2a49962c0cf28363f", kill_on_drop: false }`
[INFO] [stdout] a2a91a83a5a8898834a4f4151131004acb57bf7f80c99ad2a49962c0cf28363f
