[INFO] fetching crate thiserror-ext 0.0.10...
[INFO] documenting thiserror-ext-0.0.10 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate thiserror-ext 0.0.10 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate thiserror-ext 0.0.10 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] removed /workspace/builds/worker-0-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate thiserror-ext 0.0.10
[INFO] finished tweaking crates.io crate thiserror-ext 0.0.10
[INFO] tweaked toml for crates.io crate thiserror-ext 0.0.10 written to /workspace/builds/worker-0-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 sealed_test v1.0.0
[INFO] [stderr]   Downloaded rusty-forkfork v0.4.0
[INFO] [stderr]   Downloaded thiserror-ext-derive v0.0.10
[INFO] [stderr]   Downloaded sealed_test_derive v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a0a477fc7f5887d069010fb2b1bb46846236dd9b3a6f6faac0f4d9ddf864c18e
[INFO] running `Command { std: "docker" "start" "-a" "a0a477fc7f5887d069010fb2b1bb46846236dd9b3a6f6faac0f4d9ddf864c18e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a0a477fc7f5887d069010fb2b1bb46846236dd9b3a6f6faac0f4d9ddf864c18e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0a477fc7f5887d069010fb2b1bb46846236dd9b3a6f6faac0f4d9ddf864c18e", kill_on_drop: false }`
[INFO] [stdout] a0a477fc7f5887d069010fb2b1bb46846236dd9b3a6f6faac0f4d9ddf864c18e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] bfd12840e0f84b8db1c5159bf6e4fc716078bbd392402fad32d4930e11b3f044
[INFO] running `Command { std: "docker" "start" "-a" "bfd12840e0f84b8db1c5159bf6e4fc716078bbd392402fad32d4930e11b3f044", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling thiserror-ext-derive v0.0.10
[INFO] [stderr]     Checking thiserror v1.0.57
[INFO] [stderr]  Documenting thiserror-ext v0.0.10 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(error_generic_member_access)] // TODO: it's nightly-only
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]  --> src/ptr.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 | /// Workaround for https://github.com/rust-lang/rust/issues/117432.
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://github.com/rust-lang/rust/issues/117432.>`
[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 `thiserror-ext`
[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 thiserror_ext src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=27ceddd712f0cd89 -L dependency=/opt/rustwide/target/debug/deps --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-ad5887282137f653.rmeta --extern thiserror_ext_derive=/opt/rustwide/target/debug/deps/libthiserror_ext_derive-0ef111343743e08e.so --cap-lints=warn --crate-version 0.0.10` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "bfd12840e0f84b8db1c5159bf6e4fc716078bbd392402fad32d4930e11b3f044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfd12840e0f84b8db1c5159bf6e4fc716078bbd392402fad32d4930e11b3f044", kill_on_drop: false }`
[INFO] [stdout] bfd12840e0f84b8db1c5159bf6e4fc716078bbd392402fad32d4930e11b3f044
