[INFO] fetching crate rust_readability 0.1.2...
[INFO] documenting rust_readability-0.1.2 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate rust_readability 0.1.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate rust_readability 0.1.2 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 rust_readability 0.1.2
[INFO] finished tweaking crates.io crate rust_readability 0.1.2
[INFO] tweaked toml for crates.io crate rust_readability 0.1.2 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" "+1.76.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rust-freqdist v0.1.5
[INFO] [stderr]   Downloaded punkt v1.0.5
[INFO] [stderr]   Downloaded stop-words v0.2.2
[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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3275f93bdc3d8b6457fad7eb63a570bb327f30f9523ad4e1cce5d565fabf11da
[INFO] running `Command { std: "docker" "start" "-a" "3275f93bdc3d8b6457fad7eb63a570bb327f30f9523ad4e1cce5d565fabf11da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3275f93bdc3d8b6457fad7eb63a570bb327f30f9523ad4e1cce5d565fabf11da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3275f93bdc3d8b6457fad7eb63a570bb327f30f9523ad4e1cce5d565fabf11da", kill_on_drop: false }`
[INFO] [stdout] 3275f93bdc3d8b6457fad7eb63a570bb327f30f9523ad4e1cce5d565fabf11da
[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" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7bd119e14b2f7ccbb82423d70e7d36504ae90a28e829fb239613418251b315d
[INFO] running `Command { std: "docker" "start" "-a" "b7bd119e14b2f7ccbb82423d70e7d36504ae90a28e829fb239613418251b315d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking rust-freqdist v0.1.5
[INFO] [stderr]     Checking unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking wordsworth v0.1.1
[INFO] [stderr]     Checking stop-words v0.2.2
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]    Compiling phf_macros v0.7.24
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking punkt v1.0.5
[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/punkt-1.0.5/src/lib.rs:141:1
[INFO] [stdout]     |
[INFO] [stdout] 141 | #![feature(proc_macro_hygiene)]
[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 compile `punkt` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "b7bd119e14b2f7ccbb82423d70e7d36504ae90a28e829fb239613418251b315d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7bd119e14b2f7ccbb82423d70e7d36504ae90a28e829fb239613418251b315d", kill_on_drop: false }`
[INFO] [stdout] b7bd119e14b2f7ccbb82423d70e7d36504ae90a28e829fb239613418251b315d
[INFO] documenting rust_readability-0.1.2 against beta-2024-02-10 for beta-1.77-rustdoc-1
[INFO] extracting crate rust_readability 0.1.2 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate rust_readability 0.1.2 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 rust_readability 0.1.2
[INFO] finished tweaking crates.io crate rust_readability 0.1.2
[INFO] tweaked toml for crates.io crate rust_readability 0.1.2 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-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-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-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ccc101baed10dcbcb9d618c1388931a4b1af55a60d09b1d8eab0b5bcf15dfdd
[INFO] running `Command { std: "docker" "start" "-a" "2ccc101baed10dcbcb9d618c1388931a4b1af55a60d09b1d8eab0b5bcf15dfdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ccc101baed10dcbcb9d618c1388931a4b1af55a60d09b1d8eab0b5bcf15dfdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ccc101baed10dcbcb9d618c1388931a4b1af55a60d09b1d8eab0b5bcf15dfdd", kill_on_drop: false }`
[INFO] [stdout] 2ccc101baed10dcbcb9d618c1388931a4b1af55a60d09b1d8eab0b5bcf15dfdd
[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-2024-02-10" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2df70fd5a3041ee12ac1b9e9d6267a37727368c530a35c1bb1d1b31439044cb
[INFO] running `Command { std: "docker" "start" "-a" "a2df70fd5a3041ee12ac1b9e9d6267a37727368c530a35c1bb1d1b31439044cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking rust-freqdist v0.1.5
[INFO] [stderr]     Checking unicode-segmentation v1.11.0
[INFO] [stderr]     Checking stop-words v0.2.2
[INFO] [stderr]     Checking wordsworth v0.1.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]    Compiling phf_macros v0.7.24
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking punkt v1.0.5
[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/punkt-1.0.5/src/lib.rs:141:1
[INFO] [stdout]     |
[INFO] [stdout] 141 | #![feature(proc_macro_hygiene)]
[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 compile `punkt` (lib) due to 2 previous errors; 11 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a2df70fd5a3041ee12ac1b9e9d6267a37727368c530a35c1bb1d1b31439044cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2df70fd5a3041ee12ac1b9e9d6267a37727368c530a35c1bb1d1b31439044cb", kill_on_drop: false }`
[INFO] [stdout] a2df70fd5a3041ee12ac1b9e9d6267a37727368c530a35c1bb1d1b31439044cb
