[INFO] fetching crate futures-macro-await 0.2.1...
[INFO] documenting futures-macro-await-0.2.1 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate futures-macro-await 0.2.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate futures-macro-await 0.2.1 on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-macro-await 0.2.1
[INFO] finished tweaking crates.io crate futures-macro-await 0.2.1
[INFO] tweaked toml for crates.io crate futures-macro-await 0.2.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d1681be866f7e358e16fa696532362e6ee97300f03a6823fe391b41c9def2bdc
[INFO] running `Command { std: "docker" "start" "-a" "d1681be866f7e358e16fa696532362e6ee97300f03a6823fe391b41c9def2bdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1681be866f7e358e16fa696532362e6ee97300f03a6823fe391b41c9def2bdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1681be866f7e358e16fa696532362e6ee97300f03a6823fe391b41c9def2bdc", kill_on_drop: false }`
[INFO] [stdout] d1681be866f7e358e16fa696532362e6ee97300f03a6823fe391b41c9def2bdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3831103c6ef59a667993b7964372596f6ea2fba5e6ad67ad4202d08b17e71764
[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" "3831103c6ef59a667993b7964372596f6ea2fba5e6ad67ad4202d08b17e71764", kill_on_drop: false }`
[INFO] [stderr]  Documenting futures-macro-await v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[futures::prelude]` cannot be resolved, ignoring it.
[INFO] [stdout]  --> src/lib.rs:6:53
[INFO] [stdout]   |
[INFO] [stdout] 6 | //! All macros defined here should be imported via [`futures::prelude`] instead.
[INFO] [stdout]   |                                                     ^^^^^^^^^^^^^^^^^^ cannot be resolved, ignoring
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(intra_doc_link_resolution_failure)]` on by default
[INFO] [stdout]   = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[Future]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / /// Await a sub-future inside an `#[async]` function.
[INFO] [stdout] 9  | | ///
[INFO] [stdout] 10 | | /// You should pass an object implementing [`Future`] or [`StableFuture`] to
[INFO] [stdout] 11 | | /// this macro, it will implicitly `yield` while that future returns
[INFO] [stdout] ...  |
[INFO] [stdout] 32 | | /// assert_eq!(Ok(1), block_on_stable(probably_one()));
[INFO] [stdout] 33 | | /// ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the link appears in this line:
[INFO] [stdout]            
[INFO] [stdout]            You should pass an object implementing [`Future`] or [`StableFuture`] to
[INFO] [stdout]                                                    ^^^^^^^^
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[StableFuture]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / /// Await a sub-future inside an `#[async]` function.
[INFO] [stdout] 9  | | ///
[INFO] [stdout] 10 | | /// You should pass an object implementing [`Future`] or [`StableFuture`] to
[INFO] [stdout] 11 | | /// this macro, it will implicitly `yield` while that future returns
[INFO] [stdout] ...  |
[INFO] [stdout] 32 | | /// assert_eq!(Ok(1), block_on_stable(probably_one()));
[INFO] [stdout] 33 | | /// ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the link appears in this line:
[INFO] [stdout]            
[INFO] [stdout]            You should pass an object implementing [`Future`] or [`StableFuture`] to
[INFO] [stdout]                                                                  ^^^^^^^^^^^^^^
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[Async::Pending]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / /// Await a sub-future inside an `#[async]` function.
[INFO] [stdout] 9  | | ///
[INFO] [stdout] 10 | | /// You should pass an object implementing [`Future`] or [`StableFuture`] to
[INFO] [stdout] 11 | | /// this macro, it will implicitly `yield` while that future returns
[INFO] [stdout] ...  |
[INFO] [stdout] 32 | | /// assert_eq!(Ok(1), block_on_stable(probably_one()));
[INFO] [stdout] 33 | | /// ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the link appears in this line:
[INFO] [stdout]            
[INFO] [stdout]            [`Async::Pending`] and evaluate to a [`Result`] containing the result of
[INFO] [stdout]             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[Stream]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:67:1
[INFO] [stdout]    |
[INFO] [stdout] 67 | / /// Await an item from a stream inside an `#[async]` function.
[INFO] [stdout] 68 | | ///
[INFO] [stdout] 69 | | /// You should pass an object implementing [`Stream`] to this macro, it will
[INFO] [stdout] 70 | | /// implicitly `yield` while that stream returns [`Async::Pending`] and evaluate
[INFO] [stdout] ...  |
[INFO] [stdout] 98 | | /// assert_eq!(Ok(10), block_on_stable(eventually_ten()));
[INFO] [stdout] 99 | | /// ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the link appears in this line:
[INFO] [stdout]            
[INFO] [stdout]            You should pass an object implementing [`Stream`] to this macro, it will
[INFO] [stdout]                                                    ^^^^^^^^
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[Async::Pending]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/lib.rs:67:1
[INFO] [stdout]    |
[INFO] [stdout] 67 | / /// Await an item from a stream inside an `#[async]` function.
[INFO] [stdout] 68 | | ///
[INFO] [stdout] 69 | | /// You should pass an object implementing [`Stream`] to this macro, it will
[INFO] [stdout] 70 | | /// implicitly `yield` while that stream returns [`Async::Pending`] and evaluate
[INFO] [stdout] ...  |
[INFO] [stdout] 98 | | /// assert_eq!(Ok(10), block_on_stable(eventually_ten()));
[INFO] [stdout] 99 | | /// ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the link appears in this line:
[INFO] [stdout]            
[INFO] [stdout]            implicitly `yield` while that stream returns [`Async::Pending`] and evaluate
[INFO] [stdout]                                                          ^^^^^^^^^^^^^^^^
[INFO] [stdout]    = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "3831103c6ef59a667993b7964372596f6ea2fba5e6ad67ad4202d08b17e71764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3831103c6ef59a667993b7964372596f6ea2fba5e6ad67ad4202d08b17e71764", kill_on_drop: false }`
[INFO] [stdout] 3831103c6ef59a667993b7964372596f6ea2fba5e6ad67ad4202d08b17e71764