[INFO] fetching crate tomcat 0.1.12...
[INFO] documenting tomcat-0.1.12 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate tomcat 0.1.12 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate tomcat 0.1.12 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 tomcat 0.1.12
[INFO] finished tweaking crates.io crate tomcat 0.1.12
[INFO] tweaked toml for crates.io crate tomcat 0.1.12 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate tomcat 0.1.12 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]  Downloading crates ...
[INFO] [stderr]   Downloaded openssl-sys v0.9.76
[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] 410e15eeee9f76a3abcecd387bdab55e04fa7d097fcc2350884aeccd82d1bd40
[INFO] running `Command { std: "docker" "start" "-a" "410e15eeee9f76a3abcecd387bdab55e04fa7d097fcc2350884aeccd82d1bd40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "410e15eeee9f76a3abcecd387bdab55e04fa7d097fcc2350884aeccd82d1bd40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "410e15eeee9f76a3abcecd387bdab55e04fa7d097fcc2350884aeccd82d1bd40", kill_on_drop: false }`
[INFO] [stdout] 410e15eeee9f76a3abcecd387bdab55e04fa7d097fcc2350884aeccd82d1bd40
[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] 2e315dc1dde29fb3e1b26c1f0fef6f44d35fbc662086c1a9f55a2910250a761f
[INFO] running `Command { std: "docker" "start" "-a" "2e315dc1dde29fb3e1b26c1f0fef6f44d35fbc662086c1a9f55a2910250a761f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling openssl v0.10.42
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]     Checking futures-sink v0.3.24
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]     Checking futures-io v0.3.24
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling serde_json v1.0.86
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking ipnet v2.5.0
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]    Compiling openssl-sys v0.9.76
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]     Checking url v2.3.1
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling openssl-macros v0.1.0
[INFO] [stderr]     Checking tokio-util v0.7.4
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.3.14
[INFO] [stderr]     Checking hyper v0.14.20
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.12
[INFO] [stderr]  Documenting tomcat v0.1.12 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(async_closure)]
[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 `tomcat`
[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=2021 --crate-type lib --crate-name tomcat src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=11fa0b9d309a397f -L dependency=/opt/rustwide/target/debug/deps --extern http=/opt/rustwide/target/debug/deps/libhttp-1e10cd7e5dccd49f.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-27a3b84863439527.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-708010b881ab8a2e.rmeta --cap-lints=warn --crate-version 0.1.12` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "2e315dc1dde29fb3e1b26c1f0fef6f44d35fbc662086c1a9f55a2910250a761f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e315dc1dde29fb3e1b26c1f0fef6f44d35fbc662086c1a9f55a2910250a761f", kill_on_drop: false }`
[INFO] [stdout] 2e315dc1dde29fb3e1b26c1f0fef6f44d35fbc662086c1a9f55a2910250a761f
[INFO] documenting tomcat-0.1.12 against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] extracting crate tomcat 0.1.12 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate tomcat 0.1.12 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 tomcat 0.1.12
[INFO] finished tweaking crates.io crate tomcat 0.1.12
[INFO] tweaked toml for crates.io crate tomcat 0.1.12 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate tomcat 0.1.12 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-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] 87e46d298cc19c5500347fc5a9ff37d0c7458fbdb3d65255b3fc90dd6945b5d9
[INFO] running `Command { std: "docker" "start" "-a" "87e46d298cc19c5500347fc5a9ff37d0c7458fbdb3d65255b3fc90dd6945b5d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87e46d298cc19c5500347fc5a9ff37d0c7458fbdb3d65255b3fc90dd6945b5d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87e46d298cc19c5500347fc5a9ff37d0c7458fbdb3d65255b3fc90dd6945b5d9", kill_on_drop: false }`
[INFO] [stdout] 87e46d298cc19c5500347fc5a9ff37d0c7458fbdb3d65255b3fc90dd6945b5d9
[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] de7ca1b6c923d1b25acf9c85a5d19a5cf4cb52ef90f69520f7c1f913471db3f0
[INFO] running `Command { std: "docker" "start" "-a" "de7ca1b6c923d1b25acf9c85a5d19a5cf4cb52ef90f69520f7c1f913471db3f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]     Checking itoa v1.0.4
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]    Compiling openssl v0.10.42
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]     Checking futures-sink v0.3.24
[INFO] [stderr]     Checking futures-io v0.3.24
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]    Compiling serde_json v1.0.86
[INFO] [stderr]     Checking ipnet v2.5.0
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]    Compiling openssl-sys v0.9.76
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]     Checking url v2.3.1
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling openssl-macros v0.1.0
[INFO] [stderr]     Checking tokio-util v0.7.4
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.3.14
[INFO] [stderr]     Checking hyper v0.14.20
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.12
[INFO] [stderr]  Documenting tomcat v0.1.12 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(async_closure)]
[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 `tomcat`
[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=2021 --crate-type lib --crate-name tomcat src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=2513e0975acf57c6 -L dependency=/opt/rustwide/target/debug/deps --extern http=/opt/rustwide/target/debug/deps/libhttp-1d3249462d06572d.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-7056f5fa4a1bd0c2.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-2ebf57f9dc481459.rmeta --cap-lints=warn --crate-version 0.1.12` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "de7ca1b6c923d1b25acf9c85a5d19a5cf4cb52ef90f69520f7c1f913471db3f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de7ca1b6c923d1b25acf9c85a5d19a5cf4cb52ef90f69520f7c1f913471db3f0", kill_on_drop: false }`
[INFO] [stdout] de7ca1b6c923d1b25acf9c85a5d19a5cf4cb52ef90f69520f7c1f913471db3f0
