[INFO] fetching crate visibility 0.0.1...
[INFO] documenting visibility-0.0.1 against beta-2023-04-20 for beta-1.70-rustdoc-1
[INFO] extracting crate visibility 0.0.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate visibility 0.0.1 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate visibility 0.0.1
[INFO] finished tweaking crates.io crate visibility 0.0.1
[INFO] tweaked toml for crates.io crate visibility 0.0.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63889173903e4caac5f68256a66dd2f4f4a00cb571e1b7fb13b5b9953cee0c67
[INFO] running `Command { std: "docker" "start" "-a" "63889173903e4caac5f68256a66dd2f4f4a00cb571e1b7fb13b5b9953cee0c67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63889173903e4caac5f68256a66dd2f4f4a00cb571e1b7fb13b5b9953cee0c67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63889173903e4caac5f68256a66dd2f4f4a00cb571e1b7fb13b5b9953cee0c67", kill_on_drop: false }`
[INFO] [stdout] 63889173903e4caac5f68256a66dd2f4f4a00cb571e1b7fb13b5b9953cee0c67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bee51cceab0ec80e1f8652c1fa5aea8790b37c7a367e2dab4b4291c1a0277ee3
[INFO] running `Command { std: "docker" "start" "-a" "bee51cceab0ec80e1f8652c1fa5aea8790b37c7a367e2dab4b4291c1a0277ee3", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-ident v1.0.8
[INFO] [stderr]     Checking proc-macro2 v1.0.56
[INFO] [stderr]     Checking quote v1.0.26
[INFO] [stderr]     Checking syn v1.0.109
[INFO] [stderr]  Documenting visibility v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.38s
[INFO] running `Command { std: "docker" "inspect" "bee51cceab0ec80e1f8652c1fa5aea8790b37c7a367e2dab4b4291c1a0277ee3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bee51cceab0ec80e1f8652c1fa5aea8790b37c7a367e2dab4b4291c1a0277ee3", kill_on_drop: false }`
[INFO] [stdout] bee51cceab0ec80e1f8652c1fa5aea8790b37c7a367e2dab4b4291c1a0277ee3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "rustdoc" "--lib" "-Zrustdoc-map" "--features" "nightly" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7451d874d5884444f730fc683243aeca96de3d2116c9ef0c7cbd77ba247661a
[INFO] running `Command { std: "docker" "start" "-a" "e7451d874d5884444f730fc683243aeca96de3d2116c9ef0c7cbd77ba247661a", kill_on_drop: false }`
[INFO] [stderr]  Documenting visibility v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     feature(external_doc),
[INFO] [stdout]   |             ^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: use #[doc = include_str!("filename")] instead, which handles macro invocations
[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 E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `visibility`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type proc-macro --crate-name visibility src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="nightly"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat -C metadata=685b69a4dcc26264 -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-51d880c542a9af92.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-a52e91a248d06c41.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-1fb70c356fbccfb9.rmeta --extern proc_macro --extern-html-root-url 'proc_macro2=https://docs.rs/proc-macro2/1.0.56/' --extern-html-root-url 'quote=https://docs.rs/quote/1.0.26/' --extern-html-root-url 'syn=https://docs.rs/syn/1.0.109/' -Zunstable-options --cap-lints=warn --crate-version 0.0.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "e7451d874d5884444f730fc683243aeca96de3d2116c9ef0c7cbd77ba247661a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7451d874d5884444f730fc683243aeca96de3d2116c9ef0c7cbd77ba247661a", kill_on_drop: false }`
[INFO] [stdout] e7451d874d5884444f730fc683243aeca96de3d2116c9ef0c7cbd77ba247661a
