[INFO] cloning repository https://github.com/plazmoid/bind_it
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/plazmoid/bind_it" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplazmoid%2Fbind_it", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplazmoid%2Fbind_it'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f12378b4e53ef0b46b6bd530b8360d1a9ec09c73
[INFO] documenting plazmoid/bind_it against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fplazmoid%2Fbind_it" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/plazmoid/bind_it on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-10/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/plazmoid/bind_it
[INFO] finished tweaking git repo https://github.com/plazmoid/bind_it
[INFO] tweaked toml for git repo https://github.com/plazmoid/bind_it written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/plazmoid/bind_it already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82c105fb3bb3aa552cfb981f2127c73baf5a7f0207bbd053d6c8170aa41edfb7
[INFO] running `Command { std: "docker" "start" "-a" "82c105fb3bb3aa552cfb981f2127c73baf5a7f0207bbd053d6c8170aa41edfb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82c105fb3bb3aa552cfb981f2127c73baf5a7f0207bbd053d6c8170aa41edfb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82c105fb3bb3aa552cfb981f2127c73baf5a7f0207bbd053d6c8170aa41edfb7", kill_on_drop: false }`
[INFO] [stdout] 82c105fb3bb3aa552cfb981f2127c73baf5a7f0207bbd053d6c8170aa41edfb7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e14fd24a84e378d328ef9c8cbb788835d01c5c6cf522d3cef3547b59f8614eab
[INFO] running `Command { std: "docker" "start" "-a" "e14fd24a84e378d328ef9c8cbb788835d01c5c6cf522d3cef3547b59f8614eab", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.90
[INFO] [stderr]     Checking quote v1.0.17
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]  Documenting bind_it v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(type_alias_impl_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[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 `bind_it`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type proc-macro --crate-name bind_it src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=769857b280f272d5 -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-5653350d727f284c.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-a2b4968c03290612.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-df334212fd86cd8f.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-ceaaef180c5e47d8.rmeta --extern proc_macro --cap-lints=warn --crate-version 0.1.3` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "e14fd24a84e378d328ef9c8cbb788835d01c5c6cf522d3cef3547b59f8614eab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e14fd24a84e378d328ef9c8cbb788835d01c5c6cf522d3cef3547b59f8614eab", kill_on_drop: false }`
[INFO] [stdout] e14fd24a84e378d328ef9c8cbb788835d01c5c6cf522d3cef3547b59f8614eab