[INFO] fetching crate connectorx 0.2.0...
[INFO] documenting connectorx-0.2.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate connectorx 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate connectorx 0.2.0 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 connectorx 0.2.0
[INFO] finished tweaking crates.io crate connectorx 0.2.0
[INFO] tweaked toml for crates.io crate connectorx 0.2.0 written to /workspace/builds/worker-0/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stdout] b080450bdeba94ef2add2016932373576ea329018f0234e1253738819c6ddabf
[INFO] running `Command { std: "docker" "start" "-a" "b080450bdeba94ef2add2016932373576ea329018f0234e1253738819c6ddabf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b080450bdeba94ef2add2016932373576ea329018f0234e1253738819c6ddabf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b080450bdeba94ef2add2016932373576ea329018f0234e1253738819c6ddabf", kill_on_drop: false }`
[INFO] [stdout] b080450bdeba94ef2add2016932373576ea329018f0234e1253738819c6ddabf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 558c60e09a752048cc234bec3354f4e4dfa9ac50ee5a896461df734cc7897b73
[INFO] running `Command { std: "docker" "start" "-a" "558c60e09a752048cc234bec3354f4e4dfa9ac50ee5a896461df734cc7897b73", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking sqlparser v0.9.0
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling fehler-macros v1.0.0
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking fehler v1.0.0
[INFO] [stderr]  Documenting connectorx v0.2.0 (/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 --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-c71486e08dde7454.rmeta --extern fehler=/opt/rustwide/target/debug/deps/libfehler-67128919e8c93cf9.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-74a9ecb2cbac341a.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-f8abb66ffc16068c.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-acf2ecf5bd7cd82c.rmeta --extern sqlparser=/opt/rustwide/target/debug/deps/libsqlparser-5f4a445b8696bff5.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-b1f328e544134bf4.rmeta --cap-lints=warn --crate-version 0.2.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "558c60e09a752048cc234bec3354f4e4dfa9ac50ee5a896461df734cc7897b73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "558c60e09a752048cc234bec3354f4e4dfa9ac50ee5a896461df734cc7897b73", kill_on_drop: false }`
[INFO] [stdout] 558c60e09a752048cc234bec3354f4e4dfa9ac50ee5a896461df734cc7897b73
