[INFO] cloning repository https://github.com/koompi/substrate-api-client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/koompi/substrate-api-client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoompi%2Fsubstrate-api-client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoompi%2Fsubstrate-api-client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 125d0348098a496c5d9c05cfa3047eca50b46a0d
[INFO] documenting koompi/substrate-api-client against 1.69.0 for beta-1.70-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkoompi%2Fsubstrate-api-client" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/koompi/substrate-api-client on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/koompi/substrate-api-client
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/koompi/substrate-api-client
[INFO] tweaked toml for git repo https://github.com/koompi/substrate-api-client written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/koompi/substrate-api-client already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1c3ed7d3500be87649002551ac09f3d0d4bb775545709d20e2a0fe213cfc0f0
[INFO] running `Command { std: "docker" "start" "-a" "a1c3ed7d3500be87649002551ac09f3d0d4bb775545709d20e2a0fe213cfc0f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1c3ed7d3500be87649002551ac09f3d0d4bb775545709d20e2a0fe213cfc0f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1c3ed7d3500be87649002551ac09f3d0d4bb775545709d20e2a0fe213cfc0f0", kill_on_drop: false }`
[INFO] [stdout] a1c3ed7d3500be87649002551ac09f3d0d4bb775545709d20e2a0fe213cfc0f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f757506b91702e0b04b0512d682cce9a6d1e4dff5672774a3175975977d42112
[INFO] running `Command { std: "docker" "start" "-a" "f757506b91702e0b04b0512d682cce9a6d1e4dff5672774a3175975977d42112", kill_on_drop: false }`
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[INFO] [stderr]     Checking frame-support v4.0.0-dev (https://github.com/paritytech/substrate.git?branch=master#b9cafba3)
[INFO] [stderr]     Checking frame-system v4.0.0-dev (https://github.com/paritytech/substrate.git?branch=master#b9cafba3)
[INFO] [stderr]     Checking frame-benchmarking v4.0.0-dev (https://github.com/paritytech/substrate.git?branch=master#b9cafba3)
[INFO] [stderr]     Checking pallet-transaction-payment v4.0.0-dev (https://github.com/paritytech/substrate.git?branch=master#b9cafba3)
[INFO] [stderr]     Checking ac-node-api v0.1.0 (/opt/rustwide/workdir/node-api)
[INFO] [stderr]     Checking pallet-balances v4.0.0-dev (https://github.com/paritytech/substrate.git?branch=master#b9cafba3)
[INFO] [stderr]  Documenting substrate-api-client v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(assert_matches)]
[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 `substrate-api-client`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name substrate_api_client src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="ac-node-api"' --cfg 'feature="balances"' --cfg 'feature="default"' --cfg 'feature="log"' --cfg 'feature="primitive-types"' --cfg 'feature="serde"' --cfg 'feature="serde_json"' --cfg 'feature="sp-rpc"' --cfg 'feature="sp-version"' --cfg 'feature="std"' --cfg 'feature="system"' --cfg 'feature="thiserror"' --cfg 'feature="transaction-payment"' --cfg 'feature="ws"' --cfg 'feature="ws-client"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=85e8986b455891d0 -L dependency=/opt/rustwide/target/debug/deps --extern ac_compose_macros=/opt/rustwide/target/debug/deps/libac_compose_macros-24abebd02c1f8314.rmeta --extern ac_node_api=/opt/rustwide/target/debug/deps/libac_node_api-81e3f2bc12fbd439.rmeta --extern ac_primitives=/opt/rustwide/target/debug/deps/libac_primitives-6f6dc34b97673ead.rmeta --extern metadata=/opt/rustwide/target/debug/deps/libframe_metadata-76b77c49d0653186.rmeta --extern support=/opt/rustwide/target/debug/deps/libframe_support-3cac92555ff53b0f.rmeta --extern system=/opt/rustwide/target/debug/deps/libframe_system-19bad62d2cc53a7a.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-7658a505e7fe0549.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-cfdf503dbcd0d4be.rmeta --extern balances=/opt/rustwide/target/debug/deps/libpallet_balances-5a679d5e7e117324.rmeta --extern transaction_payment=/opt/rustwide/target/debug/deps/libpallet_transaction_payment-ad2e8a36b47fe8e4.rmeta --extern codec=/opt/rustwide/target/debug/deps/libparity_scale_codec-0d1d08e9efd44a92.rmeta --extern primitive_types=/opt/rustwide/target/debug/deps/libprimitive_types-e44d607e7009fd58.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-cff601565d256132.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-414f702e8953bcf3.rmeta --extern sp_application_crypto=/opt/rustwide/target/debug/deps/libsp_application_crypto-80f8f0bbffb7df71.rmeta --extern sp_core=/opt/rustwide/target/debug/deps/libsp_core-a8b457fdca8889e8.rmeta --extern sp_rpc=/opt/rustwide/target/debug/deps/libsp_rpc-26b3d8537c81e371.rmeta --extern sp_runtime=/opt/rustwide/target/debug/deps/libsp_runtime-1ace2f113ec9d945.rmeta --extern sp_std=/opt/rustwide/target/debug/deps/libsp_std-c4137b175e84dd4b.rmeta --extern sp_version=/opt/rustwide/target/debug/deps/libsp_version-c51d2b5433857d9b.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-f81f1bba0c35538f.rmeta --extern ws=/opt/rustwide/target/debug/deps/libws-544dfc224daed2de.rmeta --cap-lints=warn --crate-version 0.6.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "f757506b91702e0b04b0512d682cce9a6d1e4dff5672774a3175975977d42112", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f757506b91702e0b04b0512d682cce9a6d1e4dff5672774a3175975977d42112", kill_on_drop: false }`
[INFO] [stdout] f757506b91702e0b04b0512d682cce9a6d1e4dff5672774a3175975977d42112
