[INFO] fetching crate mephisto-raft 0.2.0...
[INFO] documenting mephisto-raft-0.2.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate mephisto-raft 0.2.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate mephisto-raft 0.2.0 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 mephisto-raft 0.2.0
[INFO] finished tweaking crates.io crate mephisto-raft 0.2.0
[INFO] tweaked toml for crates.io crate mephisto-raft 0.2.0 written to /workspace/builds/worker-1-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 prost v0.12.3
[INFO] [stderr]   Downloaded fail v0.5.1
[INFO] [stderr]   Downloaded prost-types v0.12.3
[INFO] [stderr]   Downloaded prost-derive v0.12.3
[INFO] [stderr]   Downloaded goldenfile v1.6.0
[INFO] [stderr]   Downloaded prost-build v0.12.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 4adec7e68489617a74017bb68f0336c9b706dcc6fcbe07f6d7f1a11fc46bec1c
[INFO] running `Command { std: "docker" "start" "-a" "4adec7e68489617a74017bb68f0336c9b706dcc6fcbe07f6d7f1a11fc46bec1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4adec7e68489617a74017bb68f0336c9b706dcc6fcbe07f6d7f1a11fc46bec1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4adec7e68489617a74017bb68f0336c9b706dcc6fcbe07f6d7f1a11fc46bec1c", kill_on_drop: false }`
[INFO] [stdout] 4adec7e68489617a74017bb68f0336c9b706dcc6fcbe07f6d7f1a11fc46bec1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 049ca1d6956946873b1ae333fd853f158c901551ff603f9b4f733a9a461945cb
[INFO] running `Command { std: "docker" "start" "-a" "049ca1d6956946873b1ae333fd853f158c901551ff603f9b4f733a9a461945cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling rustix v0.38.31
[INFO] [stderr]    Compiling linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]    Compiling bitflags v2.4.2
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling prettyplease v0.2.16
[INFO] [stderr]    Compiling home v0.5.9
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling fastrand v2.0.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling petgraph v0.6.4
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling autotools v0.2.6
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling regex-automata v0.4.5
[INFO] [stderr]     Checking fail v0.5.1
[INFO] [stderr]    Compiling protobuf-src v1.1.0+21.5
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling tempfile v3.10.0
[INFO] [stderr]    Compiling getset v0.1.2
[INFO] [stderr]    Compiling regex v1.10.3
[INFO] [stderr]    Compiling prost-derive v0.12.3
[INFO] [stderr]    Compiling enum-iterator-derive v1.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]     Checking enum-iterator v1.5.0
[INFO] [stderr]     Checking thiserror v1.0.57
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]    Compiling prost v0.12.3
[INFO] [stderr]    Compiling prost-types v0.12.3
[INFO] [stderr]    Compiling prost-build v0.12.3
[INFO] [stderr]    Compiling mephisto-raft v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting mephisto-raft v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:445:12
[INFO] [stdout]     |
[INFO] [stdout] 445 | #![feature(panic_update_hook)]
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]   --> src/raft.rs:95:13
[INFO] [stdout]    |
[INFO] [stdout] 95 |     /// See https://github.com/tikv/raft-rs/pull/398#discussion_r502417531 for more detail
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://github.com/tikv/raft-rs/pull/398#discussion_r502417531>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout]    = note: `#[warn(rustdoc::bare_urls)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `mephisto-raft`
[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=2021 --crate-type lib --crate-name mephisto_raft src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=2b016c3f593349a0 -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-83cef452744526c5.rmeta --extern enum_iterator=/opt/rustwide/target/debug/deps/libenum_iterator-2487818e089f2b46.rmeta --extern fail=/opt/rustwide/target/debug/deps/libfail-b350adba00d8dba8.rmeta --extern fxhash=/opt/rustwide/target/debug/deps/libfxhash-dbe595db59bc79e1.rmeta --extern getset=/opt/rustwide/target/debug/deps/libgetset-41ea16aa2f82151f.so --extern prost=/opt/rustwide/target/debug/deps/libprost-91eaf6913040a40a.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-780e419cd85b919a.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-7e72e4ae40eb5f84.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-ccebe927eb4b4677.rmeta --cap-lints=warn --crate-version 0.2.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "049ca1d6956946873b1ae333fd853f158c901551ff603f9b4f733a9a461945cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "049ca1d6956946873b1ae333fd853f158c901551ff603f9b4f733a9a461945cb", kill_on_drop: false }`
[INFO] [stdout] 049ca1d6956946873b1ae333fd853f158c901551ff603f9b4f733a9a461945cb
