[INFO] fetching crate mdrend-test-markdown-123 0.1.0...
[INFO] documenting mdrend-test-markdown-123-0.1.0 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate mdrend-test-markdown-123 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate mdrend-test-markdown-123 0.1.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdrend-test-markdown-123 0.1.0
[INFO] finished tweaking crates.io crate mdrend-test-markdown-123 0.1.0
[INFO] tweaked toml for crates.io crate mdrend-test-markdown-123 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate mdrend-test-markdown-123 0.1.0 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded literalext v0.1.1
[INFO] [stderr]   Downloaded maud_macros v0.20.0
[INFO] [stderr]   Downloaded maud v0.20.0
[INFO] [stderr]   Downloaded maud_htmlescape v0.17.0
[INFO] [stderr]   Downloaded pulldown-cmark v0.4.1
[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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b123cf386a354eedf86976320f4905fd18255391c0ab41bd43024754f075c861
[INFO] running `Command { std: "docker" "start" "-a" "b123cf386a354eedf86976320f4905fd18255391c0ab41bd43024754f075c861", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b123cf386a354eedf86976320f4905fd18255391c0ab41bd43024754f075c861", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b123cf386a354eedf86976320f4905fd18255391c0ab41bd43024754f075c861", kill_on_drop: false }`
[INFO] [stdout] b123cf386a354eedf86976320f4905fd18255391c0ab41bd43024754f075c861
[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" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd1f40b176b6d0fd91923021277b5d99b1db063db63d04cbe046d10a07cee300
[INFO] running `Command { std: "docker" "start" "-a" "dd1f40b176b6d0fd91923021277b5d99b1db063db63d04cbe046d10a07cee300", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling literalext v0.1.1
[INFO] [stderr]    Compiling pulldown-cmark v0.4.1
[INFO] [stderr]    Compiling maud_htmlescape v0.17.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/literalext-0.1.1/src/lib.rs:19:37
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![cfg_attr(feature = "proc-macro", feature(proc_macro))]
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `proc_macro` has been stable since `1.29.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 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 compile `literalext` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "dd1f40b176b6d0fd91923021277b5d99b1db063db63d04cbe046d10a07cee300", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd1f40b176b6d0fd91923021277b5d99b1db063db63d04cbe046d10a07cee300", kill_on_drop: false }`
[INFO] [stdout] dd1f40b176b6d0fd91923021277b5d99b1db063db63d04cbe046d10a07cee300
[INFO] documenting mdrend-test-markdown-123-0.1.0 against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] extracting crate mdrend-test-markdown-123 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate mdrend-test-markdown-123 0.1.0 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdrend-test-markdown-123 0.1.0
[INFO] finished tweaking crates.io crate mdrend-test-markdown-123 0.1.0
[INFO] tweaked toml for crates.io crate mdrend-test-markdown-123 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate mdrend-test-markdown-123 0.1.0 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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c204d0bfcca343c3fd6c42f3b2d99df5be20561a30135d19dc9e101b452ae4c
[INFO] running `Command { std: "docker" "start" "-a" "3c204d0bfcca343c3fd6c42f3b2d99df5be20561a30135d19dc9e101b452ae4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c204d0bfcca343c3fd6c42f3b2d99df5be20561a30135d19dc9e101b452ae4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c204d0bfcca343c3fd6c42f3b2d99df5be20561a30135d19dc9e101b452ae4c", kill_on_drop: false }`
[INFO] [stdout] 3c204d0bfcca343c3fd6c42f3b2d99df5be20561a30135d19dc9e101b452ae4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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-2023-12-22" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3490d36b04227cdb8f12b82ea939f08adfba612084d7fef92d9ed24de14b7fd
[INFO] running `Command { std: "docker" "start" "-a" "a3490d36b04227cdb8f12b82ea939f08adfba612084d7fef92d9ed24de14b7fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling maud_htmlescape v0.17.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling pulldown-cmark v0.4.1
[INFO] [stderr]    Compiling literalext v0.1.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/literalext-0.1.1/src/lib.rs:19:37
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![cfg_attr(feature = "proc-macro", feature(proc_macro))]
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]    |
[INFO] [stdout]    = help: the feature `proc_macro` has been stable since `1.29.0` and no longer requires an attribute to enable
[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 compile `literalext` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a3490d36b04227cdb8f12b82ea939f08adfba612084d7fef92d9ed24de14b7fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3490d36b04227cdb8f12b82ea939f08adfba612084d7fef92d9ed24de14b7fd", kill_on_drop: false }`
[INFO] [stdout] a3490d36b04227cdb8f12b82ea939f08adfba612084d7fef92d9ed24de14b7fd
