[INFO] cloning repository https://github.com/semtexzv/rafka
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/semtexzv/rafka" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsemtexzv%2Frafka", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsemtexzv%2Frafka'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c93a9cb3646824605b62b382ef05770f39235fe4
[INFO] documenting semtexzv/rafka against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsemtexzv%2Frafka" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/semtexzv/rafka on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/semtexzv/rafka
[INFO] finished tweaking git repo https://github.com/semtexzv/rafka
[INFO] tweaked toml for git repo https://github.com/semtexzv/rafka written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/semtexzv/rafka already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 244b46a26f254b2c240aced1d58188b3eff215340779b67926f66bb1c3ac70bc
[INFO] running `Command { std: "docker" "start" "-a" "244b46a26f254b2c240aced1d58188b3eff215340779b67926f66bb1c3ac70bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "244b46a26f254b2c240aced1d58188b3eff215340779b67926f66bb1c3ac70bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "244b46a26f254b2c240aced1d58188b3eff215340779b67926f66bb1c3ac70bc", kill_on_drop: false }`
[INFO] [stdout] 244b46a26f254b2c240aced1d58188b3eff215340779b67926f66bb1c3ac70bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ac31fede0ccb9b6ffdf6a7159bd2742572e9b969f9f33da425f5220063e9570
[INFO] running `Command { std: "docker" "start" "-a" "3ac31fede0ccb9b6ffdf6a7159bd2742572e9b969f9f33da425f5220063e9570", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.23
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling pin-project-internal v0.4.24
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking pin-project-lite v0.1.8
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]     Checking tower-layer v0.3.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking tracing-core v0.1.16
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking webpki v0.21.3
[INFO] [stderr]     Checking rustls v0.18.1
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling rafka_codegen v0.0.0 (/opt/rustwide/workdir/codegen)
[INFO] [stderr]     Checking pin-project v0.4.24
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking tower-discover v0.3.0
[INFO] [stderr]     Checking tower-load-shed v0.3.0
[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-rustls v0.14.1
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tower-limit v0.3.1
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking tower-util v0.3.1
[INFO] [stderr]     Checking tokio-tower v0.4.0
[INFO] [stderr]     Checking futures v0.3.5
[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: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[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: `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 --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-1ddb0cb3ede81055.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-461198e3a3e1689c.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-5a69d67e5415873b.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-79122f5ac4b4eced.rmeta --extern rafka_codegen=/opt/rustwide/target/debug/deps/librafka_codegen-3842615647fba398.so --extern tokio=/opt/rustwide/target/debug/deps/libtokio-73b3941b92382e92.rmeta --extern tokio_rustls=/opt/rustwide/target/debug/deps/libtokio_rustls-a73891b9280276f2.rmeta --extern tokio_tower=/opt/rustwide/target/debug/deps/libtokio_tower-2f38240d87f2e91c.rmeta --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-6c0f20dbdc0d3c2d.rmeta --extern tower=/opt/rustwide/target/debug/deps/libtower-1cecac496cc5a70d.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "3ac31fede0ccb9b6ffdf6a7159bd2742572e9b969f9f33da425f5220063e9570", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ac31fede0ccb9b6ffdf6a7159bd2742572e9b969f9f33da425f5220063e9570", kill_on_drop: false }`
[INFO] [stdout] 3ac31fede0ccb9b6ffdf6a7159bd2742572e9b969f9f33da425f5220063e9570
