[INFO] fetching crate loader-rs 0.7.0...
[INFO] documenting loader-rs-0.7.0 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate loader-rs 0.7.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate loader-rs 0.7.0 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-4-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate loader-rs 0.7.0
[INFO] finished tweaking crates.io crate loader-rs 0.7.0
[INFO] tweaked toml for crates.io crate loader-rs 0.7.0 written to /workspace/builds/worker-4-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 test-case v1.2.3
[INFO] [stderr]   Downloaded join-lazy-fmt v0.9.2
[INFO] [stderr]   Downloaded json-trait-rs v0.11.0
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[INFO] [stderr]   Downloaded mockito v0.32.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 1a97932d094ec096c15996205ca69fd0bbd54c04322d5ab513fca26cafd914f3
[INFO] running `Command { std: "docker" "start" "-a" "1a97932d094ec096c15996205ca69fd0bbd54c04322d5ab513fca26cafd914f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a97932d094ec096c15996205ca69fd0bbd54c04322d5ab513fca26cafd914f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a97932d094ec096c15996205ca69fd0bbd54c04322d5ab513fca26cafd914f3", kill_on_drop: false }`
[INFO] [stdout] 1a97932d094ec096c15996205ca69fd0bbd54c04322d5ab513fca26cafd914f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 3a8fe99125f02f1fa9d72b4b1175fc67ddbd81b03cfd1691a7b0e17f9627fb16
[INFO] running `Command { std: "docker" "start" "-a" "3a8fe99125f02f1fa9d72b4b1175fc67ddbd81b03cfd1691a7b0e17f9627fb16", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.15
[INFO] [stderr]     Checking futures-sink v0.3.28
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[INFO] [stderr]     Checking futures-io v0.3.28
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[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling ident_case v1.0.1
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[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]     Checking miniz_oxide v0.7.1
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[INFO] [stderr]    Compiling tokio-macros v2.1.0
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[INFO] [stderr]    Compiling pin-project-internal v1.0.12
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]    Compiling darling_macro v0.14.4
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[INFO] [stderr]     Checking futures-executor v0.3.28
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[INFO] [stderr]    Compiling cached_proc_macro v0.16.0
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[INFO] [stderr]  Documenting loader-rs v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:43:1
[INFO] [stdout]    |
[INFO] [stdout] 43 | #![feature(specialization)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `const_err` has been removed: converted into hard error, see issue #71800 <https://github.com/rust-lang/rust/issues/71800> for more information
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     const_err,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]   --> src/lib.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 | #![feature(specialization)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]    = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     warnings,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(incomplete_features)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `loader-rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name loader_rs src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=145de012967d4a26 -L dependency=/opt/rustwide/target/debug/deps --extern cached=/opt/rustwide/target/debug/deps/libcached-37eea8e7c9f172d7.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-9c7d51f549cf58b7.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-1712d1a9d93d1347.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-b8944c519120be43.rmeta --extern strum=/opt/rustwide/target/debug/deps/libstrum-0f303d0155652a21.rmeta --extern strum_macros=/opt/rustwide/target/debug/deps/libstrum_macros-d5d0792c58eb772b.so --extern url=/opt/rustwide/target/debug/deps/liburl-6e5df2884b0d3805.rmeta --cap-lints=warn --crate-version 0.7.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "3a8fe99125f02f1fa9d72b4b1175fc67ddbd81b03cfd1691a7b0e17f9627fb16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a8fe99125f02f1fa9d72b4b1175fc67ddbd81b03cfd1691a7b0e17f9627fb16", kill_on_drop: false }`
[INFO] [stdout] 3a8fe99125f02f1fa9d72b4b1175fc67ddbd81b03cfd1691a7b0e17f9627fb16
