[INFO] fetching crate dill 0.5.1...
[INFO] documenting dill-0.5.1 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate dill 0.5.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate dill 0.5.1 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 dill 0.5.1
[INFO] finished tweaking crates.io crate dill 0.5.1
[INFO] tweaked toml for crates.io crate dill 0.5.1 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 dill-impl v0.5.1
[INFO] [stderr]   Downloaded multimap v0.9.0
[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] b115c80ebd5a43f44f9a8e01ea51a9d4b0e97c36eb6806204434f61d835f61d1
[INFO] running `Command { std: "docker" "start" "-a" "b115c80ebd5a43f44f9a8e01ea51a9d4b0e97c36eb6806204434f61d835f61d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b115c80ebd5a43f44f9a8e01ea51a9d4b0e97c36eb6806204434f61d835f61d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b115c80ebd5a43f44f9a8e01ea51a9d4b0e97c36eb6806204434f61d835f61d1", kill_on_drop: false }`
[INFO] [stdout] b115c80ebd5a43f44f9a8e01ea51a9d4b0e97c36eb6806204434f61d835f61d1
[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] 34ecb8bb3c41c884e1150b1d45c17edb9a8a90ce1159863b059e92b0477d31b3
[INFO] running `Command { std: "docker" "start" "-a" "34ecb8bb3c41c884e1150b1d45c17edb9a8a90ce1159863b059e92b0477d31b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.15
[INFO] [stderr]     Checking multimap v0.9.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]    Compiling dill-impl v0.5.1
[INFO] [stderr]     Checking thiserror v1.0.40
[INFO] [stderr]  Documenting dill v0.5.1 (/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(unsize)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(min_specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `dill`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name dill src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=92d88eb8b0491b13 -L dependency=/opt/rustwide/target/debug/deps --extern dill_impl=/opt/rustwide/target/debug/deps/libdill_impl-86ab607e4c68d301.so --extern multimap=/opt/rustwide/target/debug/deps/libmultimap-0bc4b8465a8d5ef2.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-47f87b7bc908169e.rmeta --cap-lints=warn --crate-version 0.5.1` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "34ecb8bb3c41c884e1150b1d45c17edb9a8a90ce1159863b059e92b0477d31b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34ecb8bb3c41c884e1150b1d45c17edb9a8a90ce1159863b059e92b0477d31b3", kill_on_drop: false }`
[INFO] [stdout] 34ecb8bb3c41c884e1150b1d45c17edb9a8a90ce1159863b059e92b0477d31b3
