[INFO] cloning repository https://github.com/js2xxx/ferroc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/js2xxx/ferroc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjs2xxx%2Fferroc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjs2xxx%2Fferroc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ca572e20be52039b27530749b3082a0c68488afb
[INFO] documenting js2xxx/ferroc against 1.100.0-beta.1 for beta-rustdoc-1.100-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjs2xxx%2Fferroc" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/js2xxx/ferroc
[INFO] finished tweaking git repo https://github.com/js2xxx/ferroc
[INFO] tweaked toml for git repo https://github.com/js2xxx/ferroc written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/js2xxx/ferroc on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/js2xxx/ferroc 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:53:12
[INFO] [stderr]    |
[INFO] [stderr] 53 | homepage = "https://github.com/Js2xxx/ferroc"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 57 | repository = "https://github.com/Js2xxx/ferroc"
[INFO] [stderr]    |              ----------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `ferroc` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4753d9ee098c75e020baf7b4170d333d7ad2f149ba5dbcdc426f073f65239a14
[INFO] running `Command { std: "docker" "start" "4753d9ee098c75e020baf7b4170d333d7ad2f149ba5dbcdc426f073f65239a14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4753d9ee098c75e020baf7b4170d333d7ad2f149ba5dbcdc426f073f65239a14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4753d9ee098c75e020baf7b4170d333d7ad2f149ba5dbcdc426f073f65239a14" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4753d9ee098c75e020baf7b4170d333d7ad2f149ba5dbcdc426f073f65239a14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "4753d9ee098c75e020baf7b4170d333d7ad2f149ba5dbcdc426f073f65239a14" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: `package.homepage` is redundant with `package.repository`
[INFO] [stderr]   --> Cargo.toml:53:12
[INFO] [stderr]    |
[INFO] [stderr] 53 | homepage = "https://github.com/Js2xxx/ferroc"
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 57 | repository = "https://github.com/Js2xxx/ferroc"
[INFO] [stderr]    |              ----------------------------------
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::redundant_homepage` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.homepage`
[INFO] [stderr] warning: `ferroc` (manifest) generated 1 warning
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling ferroc v1.0.0-pre.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking array-macro v2.1.8
[INFO] [stderr]     Checking memmap2 v0.9.8
[INFO] [stderr]     Checking errno v0.3.14
[INFO] [stderr]  Documenting ferroc v1.0.0-pre.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:137:1
[INFO] [stdout]     |
[INFO] [stdout] 137 | #![feature(pointer_is_aligned_to)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `ferroc`
[INFO] running `Command { std: "docker" "inspect" "4753d9ee098c75e020baf7b4170d333d7ad2f149ba5dbcdc426f073f65239a14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4753d9ee098c75e020baf7b4170d333d7ad2f149ba5dbcdc426f073f65239a14", kill_on_drop: false }`
[INFO] [stdout] 4753d9ee098c75e020baf7b4170d333d7ad2f149ba5dbcdc426f073f65239a14
