[INFO] fetching crate valuable_value 1.0.0...
[INFO] documenting valuable_value-1.0.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate valuable_value 1.0.0 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate valuable_value 1.0.0 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate valuable_value 1.0.0
[INFO] finished tweaking crates.io crate valuable_value 1.0.0
[INFO] tweaked toml for crates.io crate valuable_value 1.0.0 written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ryu_floating_decimal v0.1.0
[INFO] [stderr]   Downloaded pretty_dtoa v0.3.0
[INFO] [stderr]   Downloaded atm_parser_helper v1.0.0
[INFO] [stderr]   Downloaded atm_parser_helper_common_syntax v2.0.0
[INFO] [stderr]   Downloaded strtod2 v0.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] beb92b8fffcc7c5c3029b17c3975912e5d15976cd6f9b8942da85fbe9272c3b5
[INFO] running `Command { std: "docker" "start" "-a" "beb92b8fffcc7c5c3029b17c3975912e5d15976cd6f9b8942da85fbe9272c3b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "beb92b8fffcc7c5c3029b17c3975912e5d15976cd6f9b8942da85fbe9272c3b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "beb92b8fffcc7c5c3029b17c3975912e5d15976cd6f9b8942da85fbe9272c3b5", kill_on_drop: false }`
[INFO] [stdout] beb92b8fffcc7c5c3029b17c3975912e5d15976cd6f9b8942da85fbe9272c3b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4f8590c9e15ef71099a82b75ee37375ff2f99f3c0d9bb58ea06dff06e40b357
[INFO] running `Command { std: "docker" "start" "-a" "c4f8590c9e15ef71099a82b75ee37375ff2f99f3c0d9bb58ea06dff06e40b357", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling ryu_floating_decimal v0.1.0
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]     Checking strtod2 v0.0.1
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking pretty_dtoa v0.3.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling derive_arbitrary v1.1.0
[INFO] [stderr]     Checking arbitrary v1.1.0
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking atm_parser_helper v1.0.0
[INFO] [stderr]     Checking atm_parser_helper_common_syntax v2.0.0
[INFO] [stderr]  Documenting valuable_value v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(total_cmp)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `arbitrary::Arbitrary`
[INFO] [stdout]  --> src/lib.rs:7:79
[INFO] [stdout]   |
[INFO] [stdout] 7 | //! Enable the `arbitrary` feature for an implementation of the [`Arbitrary`](arbitrary::Arbitrary) trait for the [`Value`](Value) type a...
[INFO] [stdout]   |                                                                               ^^^^^^^^^^^^^^^^^^^^ no item named `arbitrary` in scope
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 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 `valuable_value`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name valuable_value src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=f4708a071330a3dc -L dependency=/opt/rustwide/target/debug/deps --extern atm_parser_helper=/opt/rustwide/target/debug/deps/libatm_parser_helper-0896efef2cfc2f8f.rmeta --extern atm_parser_helper_common_syntax=/opt/rustwide/target/debug/deps/libatm_parser_helper_common_syntax-e2431b457e614faf.rmeta --extern itoa=/opt/rustwide/target/debug/deps/libitoa-9980eb29dd4d9bf3.rmeta --extern pretty_dtoa=/opt/rustwide/target/debug/deps/libpretty_dtoa-0e1d109f4fa0a732.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-69a2bcf8b67d1cdf.rmeta --extern strtod2=/opt/rustwide/target/debug/deps/libstrtod2-427c9dafb6606d78.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-0201a942757f7262.rmeta --cap-lints=warn --crate-version 1.0.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "c4f8590c9e15ef71099a82b75ee37375ff2f99f3c0d9bb58ea06dff06e40b357", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4f8590c9e15ef71099a82b75ee37375ff2f99f3c0d9bb58ea06dff06e40b357", kill_on_drop: false }`
[INFO] [stdout] c4f8590c9e15ef71099a82b75ee37375ff2f99f3c0d9bb58ea06dff06e40b357