[INFO] fetching crate tallystick 0.4.3...
[INFO] documenting tallystick-0.4.3 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate tallystick 0.4.3 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate tallystick 0.4.3 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 tallystick 0.4.3
[INFO] finished tweaking crates.io crate tallystick 0.4.3
[INFO] tweaked toml for crates.io crate tallystick 0.4.3 written to /workspace/builds/worker-2-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 criterion v0.2.11
[INFO] [stderr]   Downloaded rand_xoshiro v0.1.0
[INFO] [stderr]   Downloaded criterion-plot v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 27424ed9dd09957e4b8cced1c387963d0b3622c3b600bd8dd630f20c7850d548
[INFO] running `Command { std: "docker" "start" "-a" "27424ed9dd09957e4b8cced1c387963d0b3622c3b600bd8dd630f20c7850d548", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27424ed9dd09957e4b8cced1c387963d0b3622c3b600bd8dd630f20c7850d548", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27424ed9dd09957e4b8cced1c387963d0b3622c3b600bd8dd630f20c7850d548", kill_on_drop: false }`
[INFO] [stdout] 27424ed9dd09957e4b8cced1c387963d0b3622c3b600bd8dd630f20c7850d548
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 7d2ab08fe1bde3876e5f01573af1c50f68b08694b02f88299c1a1a457e738470
[INFO] running `Command { std: "docker" "start" "-a" "7d2ab08fe1bde3876e5f01573af1c50f68b08694b02f88299c1a1a457e738470", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking fixedbitset v0.4.2
[INFO] [stderr]     Checking partial-min-max v0.4.0
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking ahash v0.7.7
[INFO] [stderr]     Checking petgraph v0.6.4
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking serde v1.0.195
[INFO] [stderr]  Documenting tallystick v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:13:34
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![cfg_attr(feature = "nightly", feature(specialization))]
[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 `tallystick`
[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 lib --crate-name tallystick src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="nightly"' --cfg 'feature="serde"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=ae4bb2cf22bc060b -L dependency=/opt/rustwide/target/debug/deps --extern derive_more=/opt/rustwide/target/debug/deps/libderive_more-8b6b0fa8ddf7a50e.so --extern failure=/opt/rustwide/target/debug/deps/libfailure-52c3e4100f69ae15.rmeta --extern hashbrown=/opt/rustwide/target/debug/deps/libhashbrown-cd1434fb85fc6856.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-8c2cab534c36cbcf.rmeta --extern partial_min_max=/opt/rustwide/target/debug/deps/libpartial_min_max-ebec0824e3d3413f.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-eddc30aa392af0ad.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-319bf41ec1876518.rmeta --cap-lints=warn --crate-version 0.4.3` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "7d2ab08fe1bde3876e5f01573af1c50f68b08694b02f88299c1a1a457e738470", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d2ab08fe1bde3876e5f01573af1c50f68b08694b02f88299c1a1a457e738470", kill_on_drop: false }`
[INFO] [stdout] 7d2ab08fe1bde3876e5f01573af1c50f68b08694b02f88299c1a1a457e738470
[INFO] documenting tallystick-0.4.3 against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] extracting crate tallystick 0.4.3 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate tallystick 0.4.3 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 tallystick 0.4.3
[INFO] finished tweaking crates.io crate tallystick 0.4.3
[INFO] tweaked toml for crates.io crate tallystick 0.4.3 written to /workspace/builds/worker-2-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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f7a2912e99958decf37f4fa368b6e6461ff694f494d698c5ef0d6a0062a4b0ec
[INFO] running `Command { std: "docker" "start" "-a" "f7a2912e99958decf37f4fa368b6e6461ff694f494d698c5ef0d6a0062a4b0ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7a2912e99958decf37f4fa368b6e6461ff694f494d698c5ef0d6a0062a4b0ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7a2912e99958decf37f4fa368b6e6461ff694f494d698c5ef0d6a0062a4b0ec", kill_on_drop: false }`
[INFO] [stdout] f7a2912e99958decf37f4fa368b6e6461ff694f494d698c5ef0d6a0062a4b0ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] c2b166e29614d1db48d1b8d35b3d2d61a29dcbca38c8c0d64f5fc14a53cf4e23
[INFO] running `Command { std: "docker" "start" "-a" "c2b166e29614d1db48d1b8d35b3d2d61a29dcbca38c8c0d64f5fc14a53cf4e23", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking fixedbitset v0.4.2
[INFO] [stderr]     Checking partial-min-max v0.4.0
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]     Checking ahash v0.7.7
[INFO] [stderr]     Checking petgraph v0.6.4
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking serde v1.0.195
[INFO] [stderr]  Documenting tallystick v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:13:34
[INFO] [stdout]    |
[INFO] [stdout] 13 | #![cfg_attr(feature = "nightly", feature(specialization))]
[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 `tallystick`
[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 lib --crate-name tallystick src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="nightly"' --cfg 'feature="serde"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=ea43f0bea4ae7859 -L dependency=/opt/rustwide/target/debug/deps --extern derive_more=/opt/rustwide/target/debug/deps/libderive_more-ad24b3382443fa69.so --extern failure=/opt/rustwide/target/debug/deps/libfailure-7ded26286ee98095.rmeta --extern hashbrown=/opt/rustwide/target/debug/deps/libhashbrown-d5779c4644e430b2.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-4e7ac28810aa7d15.rmeta --extern partial_min_max=/opt/rustwide/target/debug/deps/libpartial_min_max-2639332fca7d2f06.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-2767e52220edc5e7.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-da6f26dbfe339ccf.rmeta --cap-lints=warn --crate-version 0.4.3` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "c2b166e29614d1db48d1b8d35b3d2d61a29dcbca38c8c0d64f5fc14a53cf4e23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2b166e29614d1db48d1b8d35b3d2d61a29dcbca38c8c0d64f5fc14a53cf4e23", kill_on_drop: false }`
[INFO] [stdout] c2b166e29614d1db48d1b8d35b3d2d61a29dcbca38c8c0d64f5fc14a53cf4e23
