[INFO] cloning repository https://github.com/4r33x/proto-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/4r33x/proto-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4r33x%2Fproto-rs", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 820d1e8b8ef3a7c564038ca036d616af379e8c22
[INFO] documenting 4r33x/proto-rs against 1.91.0 for beta-1.92-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4r33x%2Fproto-rs" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain.toml
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[INFO] finished tweaking git repo https://github.com/4r33x/proto-rs
[INFO] tweaked toml for git repo https://github.com/4r33x/proto-rs written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/4r33x/proto-rs on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/4r33x/proto-rs 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8adb2e185c7c3c2dedc9c5b1d6dcb66e554621e3d3f74dc1dfce8fa683c47ab
[INFO] running `Command { std: "docker" "start" "-a" "e8adb2e185c7c3c2dedc9c5b1d6dcb66e554621e3d3f74dc1dfce8fa683c47ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8adb2e185c7c3c2dedc9c5b1d6dcb66e554621e3d3f74dc1dfce8fa683c47ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8adb2e185c7c3c2dedc9c5b1d6dcb66e554621e3d3f74dc1dfce8fa683c47ab", kill_on_drop: false }`
[INFO] [stdout] e8adb2e185c7c3c2dedc9c5b1d6dcb66e554621e3d3f74dc1dfce8fa683c47ab
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d58fc3cc56cbb16f0022e888427803da1f26cc75d9e08d44cd05360a16a2993
[INFO] running `Command { std: "docker" "start" "-a" "9d58fc3cc56cbb16f0022e888427803da1f26cc75d9e08d44cd05360a16a2993", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
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[INFO] [stderr]    Compiling async-trait v0.1.89
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[INFO] [stderr]     Checking pin-project v1.1.10
[INFO] [stderr]     Checking const_panic v0.2.15
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking tokio-util v0.7.16
[INFO] [stderr]     Checking tokio-stream v0.1.17
[INFO] [stderr]     Checking h2 v0.4.12
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[INFO] [stderr]  Documenting proto_rs v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:38
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(not(feature = "stable"), feature(impl_trait_in_assoc_type, maybe_uninit_array_assume_init))]
[INFO] [stdout]   |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `proto_rs`
[INFO] running `Command { std: "docker" "inspect" "9d58fc3cc56cbb16f0022e888427803da1f26cc75d9e08d44cd05360a16a2993", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d58fc3cc56cbb16f0022e888427803da1f26cc75d9e08d44cd05360a16a2993", kill_on_drop: false }`
[INFO] [stdout] 9d58fc3cc56cbb16f0022e888427803da1f26cc75d9e08d44cd05360a16a2993
