[INFO] fetching crate rtx 0.1.0...
[INFO] documenting rtx-0.1.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate rtx 0.1.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate rtx 0.1.0 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rtx 0.1.0
[INFO] finished tweaking crates.io crate rtx 0.1.0
[INFO] tweaked toml for crates.io crate rtx 0.1.0 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76c9568de8ae944feb95442ddf494f15a61ce1c1bdaaaea5e3dc3d481adbc796
[INFO] running `Command { std: "docker" "start" "-a" "76c9568de8ae944feb95442ddf494f15a61ce1c1bdaaaea5e3dc3d481adbc796", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76c9568de8ae944feb95442ddf494f15a61ce1c1bdaaaea5e3dc3d481adbc796", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76c9568de8ae944feb95442ddf494f15a61ce1c1bdaaaea5e3dc3d481adbc796", kill_on_drop: false }`
[INFO] [stdout] 76c9568de8ae944feb95442ddf494f15a61ce1c1bdaaaea5e3dc3d481adbc796
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51b704db3026ae6e8a7f54be045b70b4c14438f3ec6f16ee17ea166d320b196d
[INFO] running `Command { std: "docker" "start" "-a" "51b704db3026ae6e8a7f54be045b70b4c14438f3ec6f16ee17ea166d320b196d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]  Documenting rtx v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `futures_io`
[INFO] [stdout]   --> src/io.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub use futures_io::AsyncRead;
[INFO] [stdout]    |         ^^^^^^^^^^ use of undeclared crate or module `futures_io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `futures_io`
[INFO] [stdout]   --> src/io.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub use futures_io::AsyncWrite;
[INFO] [stdout]    |         ^^^^^^^^^^ use of undeclared crate or module `futures_io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `rtx`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name rtx src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=bbf5b4027fdd980f -L dependency=/opt/rustwide/target/debug/deps --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-b06fb62b00d511df.rmeta --extern smallvec=/opt/rustwide/target/debug/deps/libsmallvec-ff6006ac5a7457f8.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "51b704db3026ae6e8a7f54be045b70b4c14438f3ec6f16ee17ea166d320b196d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51b704db3026ae6e8a7f54be045b70b4c14438f3ec6f16ee17ea166d320b196d", kill_on_drop: false }`
[INFO] [stdout] 51b704db3026ae6e8a7f54be045b70b4c14438f3ec6f16ee17ea166d320b196d