[INFO] fetching crate cfx-core 0.1.0...
[INFO] documenting cfx-core-0.1.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate cfx-core 0.1.0 into /workspace/builds/worker-78/source
[INFO] validating manifest of crates.io crate cfx-core 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 cfx-core 0.1.0
[INFO] finished tweaking crates.io crate cfx-core 0.1.0
[INFO] tweaked toml for crates.io crate cfx-core 0.1.0 written to /workspace/builds/worker-78/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] a94607573ddd542bf25c8a2e5e0943b4d00dbeac1208d5843760266a450e9cdd
[INFO] running `Command { std: "docker" "start" "-a" "a94607573ddd542bf25c8a2e5e0943b4d00dbeac1208d5843760266a450e9cdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a94607573ddd542bf25c8a2e5e0943b4d00dbeac1208d5843760266a450e9cdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a94607573ddd542bf25c8a2e5e0943b4d00dbeac1208d5843760266a450e9cdd", kill_on_drop: false }`
[INFO] [stdout] a94607573ddd542bf25c8a2e5e0943b4d00dbeac1208d5843760266a450e9cdd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] b3cf646f98f2245e79a4c0e02051b44262f9b32211db5f41768dd49fd71586ef
[INFO] running `Command { std: "docker" "start" "-a" "b3cf646f98f2245e79a4c0e02051b44262f9b32211db5f41768dd49fd71586ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking rmp v0.8.11
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling async-stream-impl v0.3.3
[INFO] [stderr]     Checking async-stream v0.3.3
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking rmp-serde v0.15.5
[INFO] [stderr]     Checking serde_bytes v0.11.6
[INFO] [stderr]     Checking cfx-wasm-rt-types v0.1.0
[INFO] [stderr]  Documenting cfx-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.55s
[INFO] running `Command { std: "docker" "inspect" "b3cf646f98f2245e79a4c0e02051b44262f9b32211db5f41768dd49fd71586ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3cf646f98f2245e79a4c0e02051b44262f9b32211db5f41768dd49fd71586ef", kill_on_drop: false }`
[INFO] [stdout] b3cf646f98f2245e79a4c0e02051b44262f9b32211db5f41768dd49fd71586ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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" "RUSTFLAGS=--cap-lints=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] d7efc613cf5351468ce2cd8559dda417abb03affe036ad15fdc9db8598ac4a08
[INFO] running `Command { std: "docker" "start" "-a" "d7efc613cf5351468ce2cd8559dda417abb03affe036ad15fdc9db8598ac4a08", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking rmp v0.8.11
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling async-stream-impl v0.3.3
[INFO] [stderr]     Checking async-stream v0.3.3
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking rmp-serde v0.15.5
[INFO] [stderr]     Checking serde_bytes v0.11.6
[INFO] [stderr]     Checking cfx-wasm-rt-types v0.1.0
[INFO] [stderr]  Documenting cfx-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected expression, found `$`
[INFO] [stdout]    --> src/events.rs:166:5
[INFO] [stdout]     |
[INFO] [stdout] 166 | /     async_stream::stream! {
[INFO] [stdout] 167 | |         while let Some(event) = events.next().await {
[INFO] [stdout] 168 | |             if let Ok(payload) = rmp_serde::from_read_ref(&event.payload) {
[INFO] [stdout] 169 | |                 let event = Event {
[INFO] [stdout] ...   |
[INFO] [stdout] 176 | |         }
[INFO] [stdout] 177 | |     }
[INFO] [stdout]     | |_____^ expected expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::async_stream_impl::stream_inner` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `cfx-core`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name cfx_core src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat -Z unstable-options --document-private-items -C metadata=7c280223a5d4fee6 -L dependency=/opt/rustwide/target/debug/deps --extern async_stream=/opt/rustwide/target/debug/deps/libasync_stream-dd9dbea86eb11cb5.rmeta --extern cfx_wasm_rt_types=/opt/rustwide/target/debug/deps/libcfx_wasm_rt_types-3563b03a29844936.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-8a9be2a49b571ad2.rmeta --extern rmp_serde=/opt/rustwide/target/debug/deps/librmp_serde-1f61c838f02f6484.rmeta --extern rustc_hash=/opt/rustwide/target/debug/deps/librustc_hash-3daba49e2eb25686.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-9ac4f65a4b7e7052.rmeta --extern serde_bytes=/opt/rustwide/target/debug/deps/libserde_bytes-261050b4e9aa0d49.rmeta --extern-html-root-url 'async_stream=https://docs.rs/async-stream/0.3.3/' --extern-html-root-url 'cfx_wasm_rt_types=https://docs.rs/cfx-wasm-rt-types/0.1.0/' --extern-html-root-url 'futures=https://docs.rs/futures/0.3.21/' --extern-html-root-url 'rmp_serde=https://docs.rs/rmp-serde/0.15.5/' --extern-html-root-url 'rustc_hash=https://docs.rs/rustc-hash/1.1.0/' --extern-html-root-url 'serde=https://docs.rs/serde/1.0.137/' --extern-html-root-url 'serde_bytes=https://docs.rs/serde_bytes/0.11.6/' -Zunstable-options --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "d7efc613cf5351468ce2cd8559dda417abb03affe036ad15fdc9db8598ac4a08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7efc613cf5351468ce2cd8559dda417abb03affe036ad15fdc9db8598ac4a08", kill_on_drop: false }`
[INFO] [stdout] d7efc613cf5351468ce2cd8559dda417abb03affe036ad15fdc9db8598ac4a08