[INFO] fetching crate parallel-stream 2.1.2...
[INFO] documenting parallel-stream-2.1.2 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate parallel-stream 2.1.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate parallel-stream 2.1.2 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate parallel-stream 2.1.2
[INFO] finished tweaking crates.io crate parallel-stream 2.1.2
[INFO] tweaked toml for crates.io crate parallel-stream 2.1.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "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] cce76de8c96fa38fddbc025e63a78665f66960b8b3acdacec8210591f909d103
[INFO] running `Command { std: "docker" "start" "-a" "cce76de8c96fa38fddbc025e63a78665f66960b8b3acdacec8210591f909d103", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cce76de8c96fa38fddbc025e63a78665f66960b8b3acdacec8210591f909d103", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cce76de8c96fa38fddbc025e63a78665f66960b8b3acdacec8210591f909d103", kill_on_drop: false }`
[INFO] [stdout] cce76de8c96fa38fddbc025e63a78665f66960b8b3acdacec8210591f909d103
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45cc6c16f06707ff69e7bee046627b4a032a6f470c8c2fbeefb8150bbf6cd271
[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" "45cc6c16f06707ff69e7bee046627b4a032a6f470c8c2fbeefb8150bbf6cd271", kill_on_drop: false }`
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]     Checking value-bag v1.0.0-alpha.7
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking polling v2.1.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking async-io v1.6.0
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking async-process v1.2.0
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]  Documenting parallel-stream v2.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved imports `async_std::sync::Receiver`, `async_std::sync::Sender`
[INFO] [stdout]  --> src/par_stream/for_each.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | use async_std::sync::{self, Receiver, Sender};
[INFO] [stdout]   |                             ^^^^^^^^  ^^^^^^ no `Sender` in `sync`
[INFO] [stdout]   |                             |
[INFO] [stdout]   |                             no `Receiver` in `sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `async_std::sync::Receiver`
[INFO] [stdout]  --> src/par_stream/map.rs:3:29
[INFO] [stdout]   |
[INFO] [stdout] 3 | use async_std::sync::{self, Receiver};
[INFO] [stdout]   |                             ^^^^^^^^ no `Receiver` in `sync`
[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 `parallel-stream`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name parallel_stream 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_std=/opt/rustwide/target/debug/deps/libasync_std-279d52cc4ecccc72.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-d21b1b707f596e2f.rmeta --cap-lints=warn --crate-version 2.1.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "45cc6c16f06707ff69e7bee046627b4a032a6f470c8c2fbeefb8150bbf6cd271", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45cc6c16f06707ff69e7bee046627b4a032a6f470c8c2fbeefb8150bbf6cd271", kill_on_drop: false }`
[INFO] [stdout] 45cc6c16f06707ff69e7bee046627b4a032a6f470c8c2fbeefb8150bbf6cd271
