[INFO] cloning repository https://github.com/eoxxs/differential-aggregate-query
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eoxxs/differential-aggregate-query" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feoxxs%2Fdifferential-aggregate-query", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feoxxs%2Fdifferential-aggregate-query'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 74676c1f142ec38772493440e085dc56af7fa005
[INFO] documenting eoxxs/differential-aggregate-query against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feoxxs%2Fdifferential-aggregate-query" "/workspace/builds/worker-18/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-18/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eoxxs/differential-aggregate-query 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 git repo https://github.com/eoxxs/differential-aggregate-query
[INFO] finished tweaking git repo https://github.com/eoxxs/differential-aggregate-query
[INFO] tweaked toml for git repo https://github.com/eoxxs/differential-aggregate-query written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] crate git repo https://github.com/eoxxs/differential-aggregate-query already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded byteorder v1.3.1
[INFO] [stderr]   Downloaded proc-macro2 v0.4.25
[INFO] [stderr]   Downloaded serde_json v1.0.38
[INFO] [stderr]   Downloaded timely_sort v0.1.6
[INFO] [stderr]   Downloaded abomonation_derive v0.3.0
[INFO] [stderr]   Downloaded bincode v1.0.1
[INFO] [stderr]   Downloaded ryu v0.2.7
[INFO] [stderr]   Downloaded timely_communication v0.9.0
[INFO] [stderr]   Downloaded abomonation v0.7.0
[INFO] [stderr]   Downloaded timely_bytes v0.9.0
[INFO] [stderr]   Downloaded timely_logging v0.9.0
[INFO] [stderr]   Downloaded timely v0.9.0
[INFO] [stderr]   Downloaded differential-dataflow v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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] a22fb155f9776c0f4c8c1a6aeffdedafdadebbd6841f04249aae170e2b36e67e
[INFO] running `Command { std: "docker" "start" "-a" "a22fb155f9776c0f4c8c1a6aeffdedafdadebbd6841f04249aae170e2b36e67e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a22fb155f9776c0f4c8c1a6aeffdedafdadebbd6841f04249aae170e2b36e67e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a22fb155f9776c0f4c8c1a6aeffdedafdadebbd6841f04249aae170e2b36e67e", kill_on_drop: false }`
[INFO] [stdout] a22fb155f9776c0f4c8c1a6aeffdedafdadebbd6841f04249aae170e2b36e67e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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] 19edd440145b3cded378034f6ac9fc7c7de48fe9f377b97dca65fcee9de220c5
[INFO] running `Command { std: "docker" "start" "-a" "19edd440145b3cded378034f6ac9fc7c7de48fe9f377b97dca65fcee9de220c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.25
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde v1.0.84
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]     Checking abomonation v0.7.0
[INFO] [stderr]     Checking timely_bytes v0.9.0
[INFO] [stderr]     Checking timely_logging v0.9.0
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking timely_sort v0.1.6
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking getopts v0.2.18
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling abomonation_derive v0.3.0
[INFO] [stderr]     Checking bincode v1.0.1
[INFO] [stderr]     Checking serde_json v1.0.38
[INFO] [stderr]    Compiling serde_derive v1.0.84
[INFO] [stderr]     Checking timely_communication v0.9.0
[INFO] [stderr]     Checking timely v0.9.0
[INFO] [stderr]     Checking differential-dataflow v0.9.0
[INFO] [stderr]  Documenting differential-aggregate-query v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(drain_filter)]
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `differential-aggregate-query`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name differential_aggregate_query src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=2cb2898c276f7b00 -L dependency=/opt/rustwide/target/debug/deps --extern abomonation=/opt/rustwide/target/debug/deps/libabomonation-f46b6173b5c1dc14.rmeta --extern abomonation_derive=/opt/rustwide/target/debug/deps/libabomonation_derive-211b725fce0ffac2.so --extern differential_dataflow=/opt/rustwide/target/debug/deps/libdifferential_dataflow-c4bd815252ecccbe.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-1461f913c3ee6e80.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-d5db422d669d586a.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-936378369e2b563f.rmeta --extern timely=/opt/rustwide/target/debug/deps/libtimely-63f6fe61ab0599b8.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "19edd440145b3cded378034f6ac9fc7c7de48fe9f377b97dca65fcee9de220c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19edd440145b3cded378034f6ac9fc7c7de48fe9f377b97dca65fcee9de220c5", kill_on_drop: false }`
[INFO] [stdout] 19edd440145b3cded378034f6ac9fc7c7de48fe9f377b97dca65fcee9de220c5