[INFO] fetching crate rafka 0.1.0...
[INFO] documenting rafka-0.1.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate rafka 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate rafka 0.1.0 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 rafka 0.1.0
[INFO] finished tweaking crates.io crate rafka 0.1.0
[INFO] tweaked toml for crates.io crate rafka 0.1.0 written to /workspace/builds/worker-7-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 rafka_codegen v0.0.0
[INFO] [stderr]   Downloaded tokio-rustls v0.14.1
[INFO] [stderr]   Downloaded tower-load-shed v0.3.0
[INFO] [stderr]   Downloaded tower-limit v0.3.1
[INFO] [stderr]   Downloaded tokio-tower v0.4.0
[INFO] [stderr]   Downloaded tower-retry v0.3.0
[INFO] [stderr]   Downloaded tower-timeout v0.3.0
[INFO] [stderr]   Downloaded tower-discover v0.3.0
[INFO] [stderr]   Downloaded tower-util v0.3.1
[INFO] [stderr]   Downloaded tower-load v0.3.0
[INFO] [stderr]   Downloaded tower-buffer v0.3.0
[INFO] [stderr]   Downloaded tower v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6d0d919e379485ad1941558e01d26d36ac5951e384e55b69cea97f1900c343b7
[INFO] running `Command { std: "docker" "start" "-a" "6d0d919e379485ad1941558e01d26d36ac5951e384e55b69cea97f1900c343b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d0d919e379485ad1941558e01d26d36ac5951e384e55b69cea97f1900c343b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d0d919e379485ad1941558e01d26d36ac5951e384e55b69cea97f1900c343b7", kill_on_drop: false }`
[INFO] [stdout] 6d0d919e379485ad1941558e01d26d36ac5951e384e55b69cea97f1900c343b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 98b54d31a8119011118ff2c1f7046d18dc80590243d892d34bfa1765af55e19c
[INFO] running `Command { std: "docker" "start" "-a" "98b54d31a8119011118ff2c1f7046d18dc80590243d892d34bfa1765af55e19c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling pin-project-internal v0.4.30
[INFO] [stderr]     Checking tower-layer v0.3.2
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling rafka_codegen v0.0.0
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking rustls v0.18.1
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]     Checking pin-project v0.4.30
[INFO] [stderr]     Checking tower-discover v0.3.0
[INFO] [stderr]     Checking tower-load-shed v0.3.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tower-load v0.3.0
[INFO] [stderr]     Checking tower-buffer v0.3.0
[INFO] [stderr]     Checking tower-timeout v0.3.0
[INFO] [stderr]     Checking tower-retry v0.3.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-rustls v0.14.1
[INFO] [stderr]     Checking tower-limit v0.3.1
[INFO] [stderr]     Checking tower-util v0.3.1
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking tokio-tower v0.4.0
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking tower v0.3.1
[INFO] [stderr]  Documenting rafka v0.1.0 (/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(min_const_generics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `min_const_generics` has been stable since `1.51.0` 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 document `rafka`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type staticlib --crate-type cdylib --crate-name rafka src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="tls"' --cfg 'feature="tokio-rustls"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=893a15adf8c78a07 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-d4cbb8ebf8c675b1.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-4d0457ff00ff859b.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-32a3eb8244f1e483.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-dab30a1fa84f3c85.rmeta --extern rafka_codegen=/opt/rustwide/target/debug/deps/librafka_codegen-a62df1415fe524d2.so --extern tokio=/opt/rustwide/target/debug/deps/libtokio-c0827cc2ddf0ddda.rmeta --extern tokio_rustls=/opt/rustwide/target/debug/deps/libtokio_rustls-7c601dff02896cfd.rmeta --extern tokio_tower=/opt/rustwide/target/debug/deps/libtokio_tower-20c2640875a8f22b.rmeta --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-b97f60c81c96e990.rmeta --extern tower=/opt/rustwide/target/debug/deps/libtower-9c77bdd6efcd3c77.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "98b54d31a8119011118ff2c1f7046d18dc80590243d892d34bfa1765af55e19c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98b54d31a8119011118ff2c1f7046d18dc80590243d892d34bfa1765af55e19c", kill_on_drop: false }`
[INFO] [stdout] 98b54d31a8119011118ff2c1f7046d18dc80590243d892d34bfa1765af55e19c
