[INFO] fetching crate futures-util-preview 0.3.0-alpha.19...
[INFO] documenting futures-util-preview-0.3.0-alpha.19 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate futures-util-preview 0.3.0-alpha.19 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate futures-util-preview 0.3.0-alpha.19 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-util-preview 0.3.0-alpha.19
[INFO] finished tweaking crates.io crate futures-util-preview 0.3.0-alpha.19
[INFO] tweaked toml for crates.io crate futures-util-preview 0.3.0-alpha.19 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc76958bcfebb655b72469bdda89bf0501fb41dae4b9a3a56f1f0993a772cfb3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fc76958bcfebb655b72469bdda89bf0501fb41dae4b9a3a56f1f0993a772cfb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc76958bcfebb655b72469bdda89bf0501fb41dae4b9a3a56f1f0993a772cfb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc76958bcfebb655b72469bdda89bf0501fb41dae4b9a3a56f1f0993a772cfb3", kill_on_drop: false }`
[INFO] [stdout] fc76958bcfebb655b72469bdda89bf0501fb41dae4b9a3a56f1f0993a772cfb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4c6096d01612edfcaf99f1b50a18f4b22e929fd8176412b999e42a78562a16a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f4c6096d01612edfcaf99f1b50a18f4b22e929fd8176412b999e42a78562a16a", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.19
[INFO] [stderr]  Documenting futures-util-preview v0.3.0-alpha.19 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `select`
[INFO] [stdout]    --> src/try_future/mod.rs:173:16
[INFO] [stdout]     |
[INFO] [stdout] 173 |     /// using [`select!`] or [`join!`].
[INFO] [stdout]     |                ^^^^^^^^^ the module `try_future` contains no item named `select`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(broken_intra_doc_links)]` on by default
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `join`
[INFO] [stdout]    --> src/try_future/mod.rs:173:31
[INFO] [stdout]     |
[INFO] [stdout] 173 |     /// using [`select!`] or [`join!`].
[INFO] [stdout]     |                               ^^^^^^^ the module `try_future` contains no item named `join`
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `select`
[INFO] [stdout]    --> src/try_future/mod.rs:220:26
[INFO] [stdout]     |
[INFO] [stdout] 220 |     /// type when using [`select!`] or [`join!`].
[INFO] [stdout]     |                          ^^^^^^^^^ the module `try_future` contains no item named `select`
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `join`
[INFO] [stdout]    --> src/try_future/mod.rs:220:41
[INFO] [stdout]     |
[INFO] [stdout] 220 |     /// type when using [`select!`] or [`join!`].
[INFO] [stdout]     |                                         ^^^^^^^ the module `try_future` contains no item named `join`
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: incompatible link kind for `usize::max_value`
[INFO] [stdout]    --> src/stream/mod.rs:279:10
[INFO] [stdout]     |
[INFO] [stdout] 279 |     /// [`usize::max_value()`] elements either produces the wrong result or panics. If
[INFO] [stdout]     |          ^^^^^^^^^^^^^^^^^^^^ help: to link to the builtin type, prefix with `prim@`: ``prim@usize::max_value``
[INFO] [stdout]     |
[INFO] [stdout]     = note: this link resolved to a builtin type, which is not a function
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `select`
[INFO] [stdout]     --> src/stream/mod.rs:1154:14
[INFO] [stdout]      |
[INFO] [stdout] 1154 |     /// the [`select!`] macro.
[INFO] [stdout]      |              ^^^^^^^^^
[INFO] [stdout]      |              |
[INFO] [stdout]      |              this link resolves to the module `select`, which is not in the macro namespace
[INFO] [stdout]      |              help: to link to the module, prefix with `mod@`: ``mod@select``
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `select`
[INFO] [stdout]     --> src/stream/mod.rs:1158:10
[INFO] [stdout]      |
[INFO] [stdout] 1158 |     /// [`select!`] macro will prevent this.
[INFO] [stdout]      |          ^^^^^^^^^
[INFO] [stdout]      |          |
[INFO] [stdout]      |          this link resolves to the module `select`, which is not in the macro namespace
[INFO] [stdout]      |          help: to link to the module, prefix with `mod@`: ``mod@select``
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `SpawnExt::spawn_with_handle`
[INFO] [stdout]   --> src/task/spawn.rs:26:43
[INFO] [stdout]    |
[INFO] [stdout] 26 |     /// You can use [`spawn_with_handle`](SpawnExt::spawn_with_handle) if
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `SpawnExt` has no associated item named `spawn_with_handle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `SpawnExt::spawn_with_handle`
[INFO] [stdout]    --> src/task/spawn.rs:103:43
[INFO] [stdout]     |
[INFO] [stdout] 103 |     /// You can use [`spawn_with_handle`](SpawnExt::spawn_with_handle) if
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `SpawnExt` has no associated item named `spawn_with_handle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.75s
[INFO] running `Command { std: "docker" "inspect" "f4c6096d01612edfcaf99f1b50a18f4b22e929fd8176412b999e42a78562a16a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4c6096d01612edfcaf99f1b50a18f4b22e929fd8176412b999e42a78562a16a", kill_on_drop: false }`
[INFO] [stdout] f4c6096d01612edfcaf99f1b50a18f4b22e929fd8176412b999e42a78562a16a
