[INFO] fetching crate forecast-async 0.1.1...
[INFO] documenting forecast-async-0.1.1 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate forecast-async 0.1.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate forecast-async 0.1.1 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 forecast-async 0.1.1
[INFO] finished tweaking crates.io crate forecast-async 0.1.1
[INFO] tweaked toml for crates.io crate forecast-async 0.1.1 written to /workspace/builds/worker-1-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] 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] fdbf038d7bb0d798ddbce0ee6d5065a8dd76a6bdd0a688e0b9c62b0d01d44381
[INFO] running `Command { std: "docker" "start" "-a" "fdbf038d7bb0d798ddbce0ee6d5065a8dd76a6bdd0a688e0b9c62b0d01d44381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdbf038d7bb0d798ddbce0ee6d5065a8dd76a6bdd0a688e0b9c62b0d01d44381", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdbf038d7bb0d798ddbce0ee6d5065a8dd76a6bdd0a688e0b9c62b0d01d44381", kill_on_drop: false }`
[INFO] [stdout] fdbf038d7bb0d798ddbce0ee6d5065a8dd76a6bdd0a688e0b9c62b0d01d44381
[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] de55e8f6c0dfd1a51fa684eba4294d584ddca20896b640f62b23eca400a7422f
[INFO] running `Command { std: "docker" "start" "-a" "de55e8f6c0dfd1a51fa684eba4294d584ddca20896b640f62b23eca400a7422f", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking parking_lot_core v0.6.3
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]     Checking gimli v0.27.2
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[INFO] [stderr]     Checking tokio-current-thread v0.1.7
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[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking serde v1.0.160
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling hyper v0.12.36
[INFO] [stderr]     Checking rustc-demangle v0.1.23
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[INFO] [stderr]     Checking object v0.30.3
[INFO] [stderr]    Compiling mime_guess v2.0.4
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[INFO] [stderr]     Checking miniz_oxide v0.7.1
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[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking openssl v0.10.52
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking publicsuffix v1.5.6
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[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking addr2line v0.19.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking serde_json v1.0.96
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking native-tls v0.2.11
[INFO] [stderr]     Checking failure v0.1.8
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[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking reqwest v0.9.24
[INFO] [stderr]  Documenting forecast-async v0.1.1 (/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(trait_alias)]
[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 `forecast-async`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name forecast_async src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=ba27d4c2676a175a -L dependency=/opt/rustwide/target/debug/deps --extern futures=/opt/rustwide/target/debug/deps/libfutures-a3d5cd7832f6a737.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-a029a020cb8b6c00.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-541212002a7d8b49.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-c328f1015fdb0e77.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-bc5bab6726cb7369.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-517f391becebfa9b.rmeta --cap-lints=warn --crate-version 0.1.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "de55e8f6c0dfd1a51fa684eba4294d584ddca20896b640f62b23eca400a7422f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de55e8f6c0dfd1a51fa684eba4294d584ddca20896b640f62b23eca400a7422f", kill_on_drop: false }`
[INFO] [stdout] de55e8f6c0dfd1a51fa684eba4294d584ddca20896b640f62b23eca400a7422f
