[INFO] fetching crate mantle-macros 0.2.1...
[INFO] documenting mantle-macros-0.2.1 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate mantle-macros 0.2.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate mantle-macros 0.2.1 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 mantle-macros 0.2.1
[INFO] finished tweaking crates.io crate mantle-macros 0.2.1
[INFO] tweaked toml for crates.io crate mantle-macros 0.2.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tiny-keccak v1.5.0
[INFO] [stderr]   Downloaded proc-quote-impl v0.2.2
[INFO] [stderr]   Downloaded proc-quote v0.2.2
[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] 0977457fdd0693d09940701464e49e2134283fc56ebb4805223b9b3953beb34c
[INFO] running `Command { std: "docker" "start" "-a" "0977457fdd0693d09940701464e49e2134283fc56ebb4805223b9b3953beb34c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0977457fdd0693d09940701464e49e2134283fc56ebb4805223b9b3953beb34c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0977457fdd0693d09940701464e49e2134283fc56ebb4805223b9b3953beb34c", kill_on_drop: false }`
[INFO] [stdout] 0977457fdd0693d09940701464e49e2134283fc56ebb4805223b9b3953beb34c
[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] b37154253bf29000ac8c1fa707b16988c7727c585bcbd8735f585290375f3da3
[INFO] running `Command { std: "docker" "start" "-a" "b37154253bf29000ac8c1fa707b16988c7727c585bcbd8735f585290375f3da3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking tiny-keccak v1.5.0
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]    Compiling proc-quote-impl v0.2.2
[INFO] [stderr]     Checking proc-quote v0.2.2
[INFO] [stderr]  Documenting mantle-macros v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic, type_ascription)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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 document `mantle-macros`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type proc-macro --crate-name mantle_macros src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=c6213bc672a4beb5 -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-c59054d75ea39f73.rmeta --extern proc_quote=/opt/rustwide/target/debug/deps/libproc_quote-f57819d28adf763a.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-caa5c1b664846d0f.rmeta --extern tiny_keccak=/opt/rustwide/target/debug/deps/libtiny_keccak-0310c9f0d5e7d160.rmeta --extern proc_macro --cap-lints=warn --crate-version 0.2.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "b37154253bf29000ac8c1fa707b16988c7727c585bcbd8735f585290375f3da3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b37154253bf29000ac8c1fa707b16988c7727c585bcbd8735f585290375f3da3", kill_on_drop: false }`
[INFO] [stdout] b37154253bf29000ac8c1fa707b16988c7727c585bcbd8735f585290375f3da3
[INFO] documenting mantle-macros-0.2.1 against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] extracting crate mantle-macros 0.2.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate mantle-macros 0.2.1 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 mantle-macros 0.2.1
[INFO] finished tweaking crates.io crate mantle-macros 0.2.1
[INFO] tweaked toml for crates.io crate mantle-macros 0.2.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "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-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] 06d2f1fed16d3bcc7f97262cb97bca4ea5071764eda58bc65b14f221a58e6e59
[INFO] running `Command { std: "docker" "start" "-a" "06d2f1fed16d3bcc7f97262cb97bca4ea5071764eda58bc65b14f221a58e6e59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06d2f1fed16d3bcc7f97262cb97bca4ea5071764eda58bc65b14f221a58e6e59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06d2f1fed16d3bcc7f97262cb97bca4ea5071764eda58bc65b14f221a58e6e59", kill_on_drop: false }`
[INFO] [stdout] 06d2f1fed16d3bcc7f97262cb97bca4ea5071764eda58bc65b14f221a58e6e59
[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] 786b5d94baf35711b1f9f8b3ef5239a6c034414c924eaa13de5e962664dac4ff
[INFO] running `Command { std: "docker" "start" "-a" "786b5d94baf35711b1f9f8b3ef5239a6c034414c924eaa13de5e962664dac4ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking tiny-keccak v1.5.0
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]    Compiling proc-quote-impl v0.2.2
[INFO] [stderr]     Checking proc-quote v0.2.2
[INFO] [stderr]  Documenting mantle-macros v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic, type_ascription)]
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `mantle-macros`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type proc-macro --crate-name mantle_macros src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=1fdd3c4e7e76874c -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-4b5f6052f6f3fadb.rmeta --extern proc_quote=/opt/rustwide/target/debug/deps/libproc_quote-f99a70f0c04e6f00.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-61a6e3bc001df7a3.rmeta --extern tiny_keccak=/opt/rustwide/target/debug/deps/libtiny_keccak-28658e6d3cb0a8a6.rmeta --extern proc_macro --cap-lints=warn --crate-version 0.2.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "786b5d94baf35711b1f9f8b3ef5239a6c034414c924eaa13de5e962664dac4ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "786b5d94baf35711b1f9f8b3ef5239a6c034414c924eaa13de5e962664dac4ff", kill_on_drop: false }`
[INFO] [stdout] 786b5d94baf35711b1f9f8b3ef5239a6c034414c924eaa13de5e962664dac4ff
