[INFO] fetching crate rattish 0.6.0...
[INFO] documenting rattish-0.6.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate rattish 0.6.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate rattish 0.6.0 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 rattish 0.6.0
[INFO] finished tweaking crates.io crate rattish 0.6.0
[INFO] tweaked toml for crates.io crate rattish 0.6.0 written to /workspace/builds/worker-5-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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] f68543ea0dc297043ee4819de5089b3c3979d6e3fa69f9aa91cced49808c4be2
[INFO] running `Command { std: "docker" "start" "-a" "f68543ea0dc297043ee4819de5089b3c3979d6e3fa69f9aa91cced49808c4be2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f68543ea0dc297043ee4819de5089b3c3979d6e3fa69f9aa91cced49808c4be2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f68543ea0dc297043ee4819de5089b3c3979d6e3fa69f9aa91cced49808c4be2", kill_on_drop: false }`
[INFO] [stdout] f68543ea0dc297043ee4819de5089b3c3979d6e3fa69f9aa91cced49808c4be2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] f20ea65854273ded0c18c09912da79dfc2aaad629d622ee3521bd8c072214519
[INFO] running `Command { std: "docker" "start" "-a" "f20ea65854273ded0c18c09912da79dfc2aaad629d622ee3521bd8c072214519", kill_on_drop: false }`
[INFO] [stderr]  Documenting rattish v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::lazy`
[INFO] [stdout]   --> src/db/hash_map.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::lazy::SyncOnceCell;
[INFO] [stdout]    |          ^^^^ could not find `lazy` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:43
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(any(feature = "global", doc), feature(once_cell))]
[INFO] [stdout]   |                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(doc_cfg, generic_associated_types, ptr_metadata, unsize)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `generic_associated_types` has been stable since `1.65.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not resolve path `SyncOnceCell::new`
[INFO] [stdout]   --> src/db/hash_map.rs:55:52
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub static DB: SyncOnceCell<HashMapTypeDatabase> = SyncOnceCell::new();
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^^^^^^ could not resolve path `SyncOnceCell::new`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error was originally ignored because you are running `rustdoc`
[INFO] [stdout]    = note: try running again with `rustc` or `cargo check` and you may get a more detailed error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `rattish`
[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=2018 --crate-type lib --crate-name rattish src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=6b383d9b4d1f8e1e -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.6.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "f20ea65854273ded0c18c09912da79dfc2aaad629d622ee3521bd8c072214519", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f20ea65854273ded0c18c09912da79dfc2aaad629d622ee3521bd8c072214519", kill_on_drop: false }`
[INFO] [stdout] f20ea65854273ded0c18c09912da79dfc2aaad629d622ee3521bd8c072214519
