[INFO] fetching crate net_sync_tokio 0.2.1...
[INFO] documenting net_sync_tokio-0.2.1 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate net_sync_tokio 0.2.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate net_sync_tokio 0.2.1 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 crates.io crate net_sync_tokio 0.2.1
[INFO] finished tweaking crates.io crate net_sync_tokio 0.2.1
[INFO] tweaked toml for crates.io crate net_sync_tokio 0.2.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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 bincode2 v2.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 23ed42b2a1066c9dba91e5b61c7102fcf30863db89304356282203368b012f1f
[INFO] running `Command { std: "docker" "start" "-a" "23ed42b2a1066c9dba91e5b61c7102fcf30863db89304356282203368b012f1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23ed42b2a1066c9dba91e5b61c7102fcf30863db89304356282203368b012f1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23ed42b2a1066c9dba91e5b61c7102fcf30863db89304356282203368b012f1f", kill_on_drop: false }`
[INFO] [stdout] 23ed42b2a1066c9dba91e5b61c7102fcf30863db89304356282203368b012f1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] acd58d319511533ef0df2d91c9565663d4a50dd1f7b4fbb1f63a3ca4a23585fd
[INFO] running `Command { std: "docker" "start" "-a" "acd58d319511533ef0df2d91c9565663d4a50dd1f7b4fbb1f63a3ca4a23585fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking gimli v0.27.2
[INFO] [stderr]    Compiling syn v2.0.15
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking getrandom v0.2.9
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking thread-id v4.0.0
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking mio v0.8.6
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling tokio v1.28.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking object v0.30.3
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking addr2line v0.19.0
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling async-trait v0.1.68
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking serde v1.0.160
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking tokio-util v0.6.10
[INFO] [stderr]     Checking bincode2 v2.0.1
[INFO] [stderr]  Documenting net_sync_tokio v0.2.1 (/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]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `generic_associated_types` has been stable since `1.65.0` and no longer requires an attribute to enable
[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 `net_sync_tokio`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name net_sync_tokio src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=3f787dc1ddba2cbd -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-3570d1a0a25354c2.rmeta --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-aa6eea4426c29787.so --extern bincode2=/opt/rustwide/target/debug/deps/libbincode2-5ef4aef500d3ae43.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-cdba088f09c8631e.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-aa7520a21e0ba38d.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-08ec50130ee988fa.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-e6c44e7a537e8740.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-eeffde7c4f935a5e.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-0bc9d1a5d13f66c2.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-eb88023b88ae611a.rmeta --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-91a9ab9deb24d307.rmeta --cap-lints=warn --crate-version 0.2.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "acd58d319511533ef0df2d91c9565663d4a50dd1f7b4fbb1f63a3ca4a23585fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acd58d319511533ef0df2d91c9565663d4a50dd1f7b4fbb1f63a3ca4a23585fd", kill_on_drop: false }`
[INFO] [stdout] acd58d319511533ef0df2d91c9565663d4a50dd1f7b4fbb1f63a3ca4a23585fd
