[INFO] fetching crate connectorx 0.2.5...
[INFO] documenting connectorx-0.2.5 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate connectorx 0.2.5 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate connectorx 0.2.5 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] started tweaking crates.io crate connectorx 0.2.5
[INFO] finished tweaking crates.io crate connectorx 0.2.5
[INFO] tweaked toml for crates.io crate connectorx 0.2.5 written to /workspace/builds/worker-26/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded winauth v0.0.4
[INFO] [stderr]   Downloaded bufstream v0.1.4
[INFO] [stderr]   Downloaded symbolic-common v8.7.3
[INFO] [stderr]   Downloaded r2d2-oracle v0.5.0
[INFO] [stderr]   Downloaded symbolic-demangle v8.7.3
[INFO] [stderr]   Downloaded debugid v0.7.3
[INFO] [stderr]   Downloaded cpp_demangle v0.3.5
[INFO] [stderr]   Downloaded hash_hasher v2.0.3
[INFO] [stderr]   Downloaded polars v0.20.0
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[INFO] [stderr]   Downloaded polars-io v0.20.0
[INFO] [stderr]   Downloaded polars-utils v0.20.0
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[INFO] [stderr]   Downloaded iai v0.1.1
[INFO] [stderr]   Downloaded bb8 v0.7.1
[INFO] [stderr]   Downloaded md5 v0.6.1
[INFO] [stderr]   Downloaded pretty-hex v0.1.1
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[INFO] [stderr]   Downloaded r2d2_mysql v21.0.0
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[INFO] [stderr]   Downloaded mysql_common v0.27.5
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[INFO] [stderr]   Downloaded pprof v0.5.1
[INFO] [stderr]   Downloaded opentls v0.2.1
[INFO] [stderr]   Downloaded polars-lazy v0.20.0
[INFO] [stderr]   Downloaded lru v0.6.6
[INFO] [stderr]   Downloaded rusqlite v0.25.4
[INFO] [stderr]   Downloaded mysql v21.0.2
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[INFO] [stderr]   Downloaded bindgen v0.58.1
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[INFO] [stderr]   Downloaded simdutf8 v0.1.4
[INFO] [stderr]   Downloaded lexical v6.1.1
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[INFO] [stderr]   Downloaded lexical-util v0.8.5
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[INFO] [stderr]   Downloaded polars-core v0.20.0
[INFO] [stderr]   Downloaded sqlparser v0.11.0
[INFO] [stderr]   Downloaded async-native-tls v0.3.3
[INFO] [stderr]   Downloaded connection-string v0.1.13
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[INFO] [stderr]   Downloaded strength_reduce v0.2.3
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[INFO] [stderr]   Downloaded saturating v0.1.0
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[INFO] [stderr]   Downloaded async-stream-impl v0.2.1
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[INFO] [stderr]   Downloaded lexical v5.2.2
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[INFO] [stderr]   Downloaded yup-oauth2 v6.7.0
[INFO] [stderr]   Downloaded r2d2_postgres v0.18.1
[INFO] [stderr]   Downloaded r2d2_sqlite v0.18.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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] a5b14b008090980022e1122d7a74c4682531c3d19972af0afeb983927a217c19
[INFO] running `Command { std: "docker" "start" "-a" "a5b14b008090980022e1122d7a74c4682531c3d19972af0afeb983927a217c19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5b14b008090980022e1122d7a74c4682531c3d19972af0afeb983927a217c19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5b14b008090980022e1122d7a74c4682531c3d19972af0afeb983927a217c19", kill_on_drop: false }`
[INFO] [stdout] a5b14b008090980022e1122d7a74c4682531c3d19972af0afeb983927a217c19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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] 338a17ee89da10b35d49e562f248765cf257e2a6bd69217e44812111fc2c9ed3
[INFO] running `Command { std: "docker" "start" "-a" "338a17ee89da10b35d49e562f248765cf257e2a6bd69217e44812111fc2c9ed3", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking sqlparser v0.11.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]    Compiling fehler-macros v1.0.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking fehler v1.0.0
[INFO] [stderr]  Documenting connectorx v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(generic_associated_types)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `connectorx`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type cdylib --crate-type rlib --crate-name connectorx src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="fptr"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=a72fec0e06dc3815 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-a2ad8fa07e0781ab.rmeta --extern fehler=/opt/rustwide/target/debug/deps/libfehler-caeb683ed700359e.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-c3e915a3b5e36158.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-4c2b941844e2fcbb.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-4748b1b291feb50d.rmeta --extern sqlparser=/opt/rustwide/target/debug/deps/libsqlparser-7cd4cb47ceb01270.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-b5d0d6ebf0d7777b.rmeta --cap-lints=warn --crate-version 0.2.5` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "338a17ee89da10b35d49e562f248765cf257e2a6bd69217e44812111fc2c9ed3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "338a17ee89da10b35d49e562f248765cf257e2a6bd69217e44812111fc2c9ed3", kill_on_drop: false }`
[INFO] [stdout] 338a17ee89da10b35d49e562f248765cf257e2a6bd69217e44812111fc2c9ed3