[INFO] fetching crate core2 0.4.0...
[INFO] documenting core2-0.4.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate core2 0.4.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate core2 0.4.0 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] started tweaking crates.io crate core2 0.4.0
[INFO] finished tweaking crates.io crate core2 0.4.0
[INFO] tweaked toml for crates.io crate core2 0.4.0 written to /workspace/builds/worker-5-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] 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 2c5e09b81149df7e8d5dbf20537b4c3b421525c00a52d3f199d858dbee9aa0dc
[INFO] running `Command { std: "docker" "start" "-a" "2c5e09b81149df7e8d5dbf20537b4c3b421525c00a52d3f199d858dbee9aa0dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c5e09b81149df7e8d5dbf20537b4c3b421525c00a52d3f199d858dbee9aa0dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c5e09b81149df7e8d5dbf20537b4c3b421525c00a52d3f199d858dbee9aa0dc", kill_on_drop: false }`
[INFO] [stdout] 2c5e09b81149df7e8d5dbf20537b4c3b421525c00a52d3f199d858dbee9aa0dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] cf942cce3d029a3acf125604d8642951b92d75adb9a9425b611e0fbe914c9b89
[INFO] running `Command { std: "docker" "start" "-a" "cf942cce3d029a3acf125604d8642951b92d75adb9a9425b611e0fbe914c9b89", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]  Documenting core2 v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/core2/index.html
[INFO] running `Command { std: "docker" "inspect" "cf942cce3d029a3acf125604d8642951b92d75adb9a9425b611e0fbe914c9b89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf942cce3d029a3acf125604d8642951b92d75adb9a9425b611e0fbe914c9b89", kill_on_drop: false }`
[INFO] [stdout] cf942cce3d029a3acf125604d8642951b92d75adb9a9425b611e0fbe914c9b89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "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] 11a88b97735f37df2f742956f90665d93eea6db5f1706c878559287fb55baff9
[INFO] running `Command { std: "docker" "start" "-a" "11a88b97735f37df2f742956f90665d93eea6db5f1706c878559287fb55baff9", kill_on_drop: false }`
[INFO] [stderr]  Documenting core2 v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `read_initializer`
[INFO] [stdout]  --> src/lib.rs:3:64
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![cfg_attr(all(feature = "std", feature = "nightly"), feature(read_initializer))]
[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 E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `core2`
[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=2018 --crate-type lib --crate-name core2 src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="alloc"' --cfg 'feature="default"' --cfg 'feature="nightly"' --cfg 'feature="std"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat -C metadata=a57923d2f98cd5f8 -L dependency=/opt/rustwide/target/debug/deps --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-3222c08d0c2ad9b0.rmeta --extern-html-root-url 'memchr=https://docs.rs/memchr/2.7.1/' -Zunstable-options --cap-lints=warn --crate-version 0.4.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "11a88b97735f37df2f742956f90665d93eea6db5f1706c878559287fb55baff9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11a88b97735f37df2f742956f90665d93eea6db5f1706c878559287fb55baff9", kill_on_drop: false }`
[INFO] [stdout] 11a88b97735f37df2f742956f90665d93eea6db5f1706c878559287fb55baff9
[INFO] documenting core2-0.4.0 against beta-2024-02-10 for beta-1.77-rustdoc-1
[INFO] extracting crate core2 0.4.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate core2 0.4.0 on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate core2 0.4.0
[INFO] finished tweaking crates.io crate core2 0.4.0
[INFO] tweaked toml for crates.io crate core2 0.4.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82891d02c8afe1d7bd3476a871a27bf1532c84ac7ad2f4969a614677009ee003
[INFO] running `Command { std: "docker" "start" "-a" "82891d02c8afe1d7bd3476a871a27bf1532c84ac7ad2f4969a614677009ee003", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82891d02c8afe1d7bd3476a871a27bf1532c84ac7ad2f4969a614677009ee003", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82891d02c8afe1d7bd3476a871a27bf1532c84ac7ad2f4969a614677009ee003", kill_on_drop: false }`
[INFO] [stdout] 82891d02c8afe1d7bd3476a871a27bf1532c84ac7ad2f4969a614677009ee003
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ff5f7ffef1413bbde2c5a6765a81f6133dae3cc4a6c8b92edddd700d8e196cc
[INFO] running `Command { std: "docker" "start" "-a" "1ff5f7ffef1413bbde2c5a6765a81f6133dae3cc4a6c8b92edddd700d8e196cc", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]  Documenting core2 v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/core2/index.html
[INFO] running `Command { std: "docker" "inspect" "1ff5f7ffef1413bbde2c5a6765a81f6133dae3cc4a6c8b92edddd700d8e196cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ff5f7ffef1413bbde2c5a6765a81f6133dae3cc4a6c8b92edddd700d8e196cc", kill_on_drop: false }`
[INFO] [stdout] 1ff5f7ffef1413bbde2c5a6765a81f6133dae3cc4a6c8b92edddd700d8e196cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "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] ca92433250f17485b4445e405b30a382edb278e0a8285a5ced6f006f5121cbc8
[INFO] running `Command { std: "docker" "start" "-a" "ca92433250f17485b4445e405b30a382edb278e0a8285a5ced6f006f5121cbc8", kill_on_drop: false }`
[INFO] [stderr]  Documenting core2 v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `read_initializer`
[INFO] [stdout]  --> src/lib.rs:3:64
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![cfg_attr(all(feature = "std", feature = "nightly"), feature(read_initializer))]
[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 E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `core2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2024-02-10-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type lib --crate-name core2 src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="alloc"' --cfg 'feature="default"' --cfg 'feature="nightly"' --cfg 'feature="std"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat -C metadata=964db6c0b27ab70b -L dependency=/opt/rustwide/target/debug/deps --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-7fa12465b3217276.rmeta --extern-html-root-url 'memchr=https://docs.rs/memchr/2.7.1/' -Zunstable-options --cap-lints=warn --crate-version 0.4.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "ca92433250f17485b4445e405b30a382edb278e0a8285a5ced6f006f5121cbc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca92433250f17485b4445e405b30a382edb278e0a8285a5ced6f006f5121cbc8", kill_on_drop: false }`
[INFO] [stdout] ca92433250f17485b4445e405b30a382edb278e0a8285a5ced6f006f5121cbc8
