[INFO] crate fuse3 0.1.0-beta1.3 is already in cache
[INFO] documenting fuse3-0.1.0-beta1.3 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate fuse3 0.1.0-beta1.3 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate fuse3 0.1.0-beta1.3 on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fuse3 0.1.0-beta1.3
[INFO] finished tweaking crates.io crate fuse3 0.1.0-beta1.3
[INFO] tweaked toml for crates.io crate fuse3 0.1.0-beta1.3 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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" "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" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9425f7ba801450250ab7844ee3e2b67422993b8fed4ee02a6683b56767faef88
[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" "9425f7ba801450250ab7844ee3e2b67422993b8fed4ee02a6683b56767faef88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9425f7ba801450250ab7844ee3e2b67422993b8fed4ee02a6683b56767faef88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9425f7ba801450250ab7844ee3e2b67422993b8fed4ee02a6683b56767faef88", kill_on_drop: false }`
[INFO] [stdout] 9425f7ba801450250ab7844ee3e2b67422993b8fed4ee02a6683b56767faef88
[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" "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" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0cd2afd0c7577713541f25625720241f74fc4a4eae1f7135690cd7155bbbfcdb
[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" "0cd2afd0c7577713541f25625720241f74fc4a4eae1f7135690cd7155bbbfcdb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]  Documenting fuse3 v0.1.0-beta1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `(): std::future::Future` is not satisfied
[INFO] [stdout]   --> src/spawn.rs:16:38
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn spawn_blocking<F, T>(f: F) -> impl Future<Output = T>
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::future::Future` is not implemented for `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the return type of a function must have a statically known size
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `fuse3`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name fuse3 src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-ae9d72692ccb2ca6.so --extern bincode=/opt/rustwide/target/debug/deps/libbincode-1641ea4548736601.rmeta --extern futures_channel=/opt/rustwide/target/debug/deps/libfutures_channel-0ef719fef7c592a8.rmeta --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-cce7e9e291726adf.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-b2c940d7bd864b5c.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-eaffe9296a03ec05.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-00a2a49b51da603b.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-8225e56346014da6.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-a5af776efad44680.rmeta --cap-lints=forbid` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "0cd2afd0c7577713541f25625720241f74fc4a4eae1f7135690cd7155bbbfcdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cd2afd0c7577713541f25625720241f74fc4a4eae1f7135690cd7155bbbfcdb", kill_on_drop: false }`
[INFO] [stdout] 0cd2afd0c7577713541f25625720241f74fc4a4eae1f7135690cd7155bbbfcdb