[INFO] cloning repository https://github.com/marc2332/rust_blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/marc2332/rust_blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarc2332%2Frust_blockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarc2332%2Frust_blockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 28354a23c6b0c270cd80fba875e1b62db652ee87
[INFO] documenting marc2332/rust_blockchain 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%2Fmarc2332%2Frust_blockchain" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/marc2332/rust_blockchain 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] started tweaking git repo https://github.com/marc2332/rust_blockchain
[INFO] finished tweaking git repo https://github.com/marc2332/rust_blockchain
[INFO] tweaked toml for git repo https://github.com/marc2332/rust_blockchain written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/marc2332/rust_blockchain 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-appender v0.1.2
[INFO] [stderr]   Downloaded headers v0.3.5
[INFO] [stderr]   Downloaded der v0.4.4
[INFO] [stderr]   Downloaded bson v2.0.0
[INFO] [stderr]   Downloaded mongodb v2.0.0
[INFO] [stderr]   Downloaded const-oid v0.7.0
[INFO] [stderr]   Downloaded crossterm v0.21.0
[INFO] [stderr]   Downloaded elliptic-curve v0.11.1
[INFO] [stderr]   Downloaded jsonrpc_client v0.7.0
[INFO] [stderr]   Downloaded ff v0.11.0
[INFO] [stderr]   Downloaded jsonrpc_client_macro v0.3.0
[INFO] [stderr]   Downloaded http-client v6.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ebe9a122289e39a6e6accbadef23325a3dccb1492313c2187a17aaac10e63359
[INFO] running `Command { std: "docker" "start" "-a" "ebe9a122289e39a6e6accbadef23325a3dccb1492313c2187a17aaac10e63359", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebe9a122289e39a6e6accbadef23325a3dccb1492313c2187a17aaac10e63359", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebe9a122289e39a6e6accbadef23325a3dccb1492313c2187a17aaac10e63359", kill_on_drop: false }`
[INFO] [stdout] ebe9a122289e39a6e6accbadef23325a3dccb1492313c2187a17aaac10e63359
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 076ab2ea469ac136302d1f214823c40695dfde5cf7df6c420ca13131397e374a
[INFO] running `Command { std: "docker" "start" "-a" "076ab2ea469ac136302d1f214823c40695dfde5cf7df6c420ca13131397e374a", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
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[INFO] [stderr]    Compiling libnghttp2-sys v0.1.6+1.43.0
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[INFO] [stderr]     Checking os_info v3.0.7
[INFO] [stderr]    Compiling jsonrpc_client_macro v0.3.0
[INFO] [stderr]    Compiling typed-builder v0.9.1
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking md-5 v0.9.1
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking elliptic-curve v0.11.1
[INFO] [stderr]     Checking jsonrpc-core-client v18.0.0
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]     Checking jsonrpc_client v0.7.0
[INFO] [stderr]     Checking k256 v0.9.6
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]    Compiling actix-macros v0.1.3
[INFO] [stderr]     Checking actix-threadpool v0.3.3
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]    Compiling jsonrpc-derive v18.0.0
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking tokio-stream v0.1.7
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking actix-rt v1.1.1
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]     Checking jsonrpc-server-utils v18.0.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling signal-hook v0.3.9
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking pin-project v0.4.28
[INFO] [stderr]     Checking mongodb v2.0.0
[INFO] [stderr]     Checking parity-ws v0.11.0
[INFO] [stderr]     Checking actix-codec v0.3.0
[INFO] [stderr]     Checking actix-service v1.0.6
[INFO] [stderr]     Checking trust-dns-proto v0.19.7
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]     Checking actix-utils v2.0.0
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking jsonrpc-ws-server v18.0.0
[INFO] [stderr]     Checking tracing-subscriber v0.2.20
[INFO] [stderr]     Checking jsonrpc-http-server v18.0.0
[INFO] [stderr]     Checking signal-hook-mio v0.2.1
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking trust-dns-resolver v0.19.7
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking input_buffer v0.4.0
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking actix-server v1.0.4
[INFO] [stderr]     Checking actix-connect v2.0.0
[INFO] [stderr]     Checking tungstenite v0.12.0
[INFO] [stderr]    Compiling actix-macros v0.2.1
[INFO] [stderr]     Checking tracing-appender v0.1.2
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking bytestring v1.0.0
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]    Compiling argh_shared v0.1.5
[INFO] [stderr]     Checking multipart v0.17.1
[INFO] [stderr]     Checking actix-router v0.2.7
[INFO] [stderr]     Checking headers v0.3.5
[INFO] [stderr]    Compiling argh_derive v0.1.5
[INFO] [stderr]     Checking actix-rt v2.2.0
[INFO] [stderr]     Checking tokio-tungstenite v0.13.0
[INFO] [stderr]     Checking actix-testing v1.0.1
[INFO] [stderr]     Checking crossterm v0.20.0
[INFO] [stderr]     Checking actix-tls v2.0.0
[INFO] [stderr]    Compiling actix_derive v0.6.0
[INFO] [stderr]    Compiling actix-web-codegen v0.4.0
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking actix v0.12.0
[INFO] [stderr]     Checking warp v0.3.1
[INFO] [stderr]     Checking tui v0.16.0
[INFO] [stderr]     Checking crossterm v0.21.0
[INFO] [stderr]     Checking argh v0.1.5
[INFO] [stderr]     Checking brotli2 v0.3.2
[INFO] [stderr]     Checking actix-http v2.2.1
[INFO] [stderr]     Checking blockchain v0.1.0 (/opt/rustwide/workdir/blockchain)
[INFO] [stderr]  Documenting blockchain v0.1.0 (/opt/rustwide/workdir/blockchain)
[INFO] [stderr]     Checking consensus v0.1.0 (/opt/rustwide/workdir/consensus)
[INFO] [stderr]     Checking client v0.1.0 (/opt/rustwide/workdir/client)
[INFO] [stderr]  Documenting client v0.1.0 (/opt/rustwide/workdir/client)
[INFO] [stderr]  Documenting consensus v0.1.0 (/opt/rustwide/workdir/consensus)
[INFO] [stderr]  Documenting metrics_server v0.1.0 (/opt/rustwide/workdir/metrics_server)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> metrics_server/src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_closure)]
[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 `metrics_server`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name metrics_server metrics_server/src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=bdbe15651bb5c13d -L dependency=/opt/rustwide/target/debug/deps --extern blockchain=/opt/rustwide/target/debug/deps/libblockchain-f4c1d96e77f2836b.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-6031d687141d7655.rmeta --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-fc6ee9e2cdfc64d4.rmeta --extern jsonrpc_core=/opt/rustwide/target/debug/deps/libjsonrpc_core-8a6200ebee6d72e5.rmeta --extern jsonrpc_core_client=/opt/rustwide/target/debug/deps/libjsonrpc_core_client-3294eaf0dd7668aa.rmeta --extern jsonrpc_derive=/opt/rustwide/target/debug/deps/libjsonrpc_derive-a680b01c1ea9715f.so --extern jsonrpc_ws_server=/opt/rustwide/target/debug/deps/libjsonrpc_ws_server-a43939c103a6681c.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-ebc29f6f8ace58b4.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-55d93c39c157aee6.so --extern tokio=/opt/rustwide/target/debug/deps/libtokio-309d6cd2a1e5a18f.rmeta --extern warp=/opt/rustwide/target/debug/deps/libwarp-6e97ca3e305e3730.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "076ab2ea469ac136302d1f214823c40695dfde5cf7df6c420ca13131397e374a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "076ab2ea469ac136302d1f214823c40695dfde5cf7df6c420ca13131397e374a", kill_on_drop: false }`
[INFO] [stdout] 076ab2ea469ac136302d1f214823c40695dfde5cf7df6c420ca13131397e374a
