[INFO] fetching crate matrix-sdk-base 0.5.1...
[INFO] documenting matrix-sdk-base-0.5.1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate matrix-sdk-base 0.5.1 into /workspace/builds/worker-29/source
[INFO] validating manifest of crates.io crate matrix-sdk-base 0.5.1 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-29/source/.cargo/config
[INFO] started tweaking crates.io crate matrix-sdk-base 0.5.1
[INFO] finished tweaking crates.io crate matrix-sdk-base 0.5.1
[INFO] tweaked toml for crates.io crate matrix-sdk-base 0.5.1 written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 374417d68a5cf852d8fd6c5ec27c79aebbe8e7b8046b918b05d56b8f225658b3
[INFO] running `Command { std: "docker" "start" "-a" "374417d68a5cf852d8fd6c5ec27c79aebbe8e7b8046b918b05d56b8f225658b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "374417d68a5cf852d8fd6c5ec27c79aebbe8e7b8046b918b05d56b8f225658b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "374417d68a5cf852d8fd6c5ec27c79aebbe8e7b8046b918b05d56b8f225658b3", kill_on_drop: false }`
[INFO] [stdout] 374417d68a5cf852d8fd6c5ec27c79aebbe8e7b8046b918b05d56b8f225658b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5c5623b3dd21aaec673df5df45439f32b7c894147fdb7e27a23babf7aa49f26
[INFO] running `Command { std: "docker" "start" "-a" "d5c5623b3dd21aaec673df5df45439f32b7c894147fdb7e27a23babf7aa49f26", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
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[INFO] [stderr]  Documenting matrix-sdk-base v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.81s
[INFO] running `Command { std: "docker" "inspect" "d5c5623b3dd21aaec673df5df45439f32b7c894147fdb7e27a23babf7aa49f26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5c5623b3dd21aaec673df5df45439f32b7c894147fdb7e27a23babf7aa49f26", kill_on_drop: false }`
[INFO] [stdout] d5c5623b3dd21aaec673df5df45439f32b7c894147fdb7e27a23babf7aa49f26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=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" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--all-features" "--frozen" "--message-format=json" "--" "--cfg" "docsrs" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 733bf85e379b56aa08983873c306f2e5225f0398b99e3f48aa57fc976a763b4e
[INFO] running `Command { std: "docker" "start" "-a" "733bf85e379b56aa08983873c306f2e5225f0398b99e3f48aa57fc976a763b4e", kill_on_drop: false }`
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[INFO] [stderr]    Compiling proc-macro-crate v1.1.3
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[INFO] [stderr]     Checking ed25519 v1.5.2
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[INFO] [stderr]     Checking ed25519-dalek v1.0.1
[INFO] [stderr]     Checking x25519-dalek v1.2.0
[INFO] [stderr]     Checking vodozemac v0.2.0
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[INFO] [stderr]     Checking matrix-sdk-qrcode v0.3.0
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[INFO] [stderr]     Checking matrix-sdk-common v0.5.0
[INFO] [stderr]     Checking matrix-sdk-crypto v0.5.0
[INFO] [stderr]  Documenting matrix-sdk-base v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected expression, found `$`
[INFO] [stdout]    --> src/store/memory_store.rs:684:22
[INFO] [stdout]     |
[INFO] [stdout] 684 |           let stream = stream! {
[INFO] [stdout]     |  ______________________^
[INFO] [stdout] 685 | |             for (_, item) in events {
[INFO] [stdout] 686 | |                 yield Ok(item);
[INFO] [stdout] 687 | |             }
[INFO] [stdout] 688 | |         };
[INFO] [stdout]     | |_________^ expected expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$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 `matrix-sdk-base`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name matrix_sdk_base src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="chacha20poly1305"' --cfg 'feature="default"' --cfg 'feature="e2e-encryption"' --cfg 'feature="experimental-timeline"' --cfg 'feature="hmac"' --cfg 'feature="http"' --cfg 'feature="matrix-sdk-crypto"' --cfg 'feature="pbkdf2"' --cfg 'feature="qrcode"' --cfg 'feature="rand"' --cfg 'feature="sha2"' --cfg 'feature="testing"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --cfg docsrs -Z unstable-options --document-private-items -C metadata=394526010d711d20 -L dependency=/opt/rustwide/target/debug/deps --extern async_stream=/opt/rustwide/target/debug/deps/libasync_stream-3fd17dd432e431c6.rmeta --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-8ebf2e0bc4105a3e.so --extern chacha20poly1305=/opt/rustwide/target/debug/deps/libchacha20poly1305-803db9023137a3c5.rmeta --extern dashmap=/opt/rustwide/target/debug/deps/libdashmap-ebb884d45a7943ce.rmeta --extern futures_channel=/opt/rustwide/target/debug/deps/libfutures_channel-d1cc63ec82e536d1.rmeta --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-60458e76f3df90f4.rmeta --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-5633cf663f09987a.rmeta --extern hmac=/opt/rustwide/target/debug/deps/libhmac-61d46c10549e9e99.rmeta --extern http=/opt/rustwide/target/debug/deps/libhttp-679a46388cba1084.rmeta --extern lru=/opt/rustwide/target/debug/deps/liblru-96ec427b4bff62fd.rmeta --extern matrix_sdk_common=/opt/rustwide/target/debug/deps/libmatrix_sdk_common-6531f631b6215704.rmeta --extern matrix_sdk_crypto=/opt/rustwide/target/debug/deps/libmatrix_sdk_crypto-996352af0d8484a0.rmeta --extern pbkdf2=/opt/rustwide/target/debug/deps/libpbkdf2-01a773f6b507f00c.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-efb7a43670652d5c.rmeta --extern ruma=/opt/rustwide/target/debug/deps/libruma-c4a7e59af4c8e8c6.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-82948b2cf8ceec72.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-4c20d7044b3f46c4.rmeta --extern sha2=/opt/rustwide/target/debug/deps/libsha2-df43187b163d7b50.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-3e53de7f84d3f50d.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-8c0e6a5d05296935.rmeta --extern zeroize=/opt/rustwide/target/debug/deps/libzeroize-e84f36b9f38ad608.rmeta --extern-html-root-url 'async_stream=https://docs.rs/async-stream/0.3.3/' --extern-html-root-url 'async_trait=https://docs.rs/async-trait/0.1.53/' --extern-html-root-url 'chacha20poly1305=https://docs.rs/chacha20poly1305/0.9.0/' --extern-html-root-url 'dashmap=https://docs.rs/dashmap/5.3.4/' --extern-html-root-url 'futures_channel=https://docs.rs/futures-channel/0.3.21/' --extern-html-root-url 'futures_core=https://docs.rs/futures-core/0.3.21/' --extern-html-root-url 'futures_util=https://docs.rs/futures-util/0.3.21/' --extern-html-root-url 'hmac=https://docs.rs/hmac/0.12.1/' --extern-html-root-url 'http=https://docs.rs/http/0.2.7/' --extern-html-root-url 'lru=https://docs.rs/lru/0.7.6/' --extern-html-root-url 'matrix_sdk_common=https://docs.rs/matrix-sdk-common/0.5.0/' --extern-html-root-url 'matrix_sdk_crypto=https://docs.rs/matrix-sdk-crypto/0.5.0/' --extern-html-root-url 'pbkdf2=https://docs.rs/pbkdf2/0.11.0/' --extern-html-root-url 'rand=https://docs.rs/rand/0.8.5/' --extern-html-root-url 'ruma=https://docs.rs/ruma/0.6.3/' --extern-html-root-url 'serde=https://docs.rs/serde/1.0.137/' --extern-html-root-url 'serde_json=https://docs.rs/serde_json/1.0.81/' --extern-html-root-url 'sha2=https://docs.rs/sha2/0.10.2/' --extern-html-root-url 'thiserror=https://docs.rs/thiserror/1.0.31/' --extern-html-root-url 'tracing=https://docs.rs/tracing/0.1.34/' --extern-html-root-url 'zeroize=https://docs.rs/zeroize/1.3.0/' -Zunstable-options --crate-version 0.5.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "733bf85e379b56aa08983873c306f2e5225f0398b99e3f48aa57fc976a763b4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "733bf85e379b56aa08983873c306f2e5225f0398b99e3f48aa57fc976a763b4e", kill_on_drop: false }`
[INFO] [stdout] 733bf85e379b56aa08983873c306f2e5225f0398b99e3f48aa57fc976a763b4e