[INFO] fetching crate bsalib 0.1.0...
[INFO] documenting bsalib-0.1.0 against 1.76.0 for beta-1.77-rustdoc-1
[INFO] extracting crate bsalib 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate bsalib 0.1.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bsalib 0.1.0
[INFO] finished tweaking crates.io crate bsalib 0.1.0
[INFO] tweaked toml for crates.io crate bsalib 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libflate v1.4.0
[INFO] [stderr]   Downloaded enumflags2 v0.7.9
[INFO] [stderr]   Downloaded libflate_lz77 v1.2.0
[INFO] [stderr]   Downloaded enumflags2_derive v0.7.9
[INFO] [stderr]   Downloaded rle-decode-fast v1.0.3
[INFO] [stderr]   Downloaded newtype-derive-2018 v0.0.3
[INFO] [stderr]   Downloaded generics v0.3.2
[INFO] [stderr]   Downloaded macro-attr-2018 v1.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 31d253f992069504ab519cf5aa4cdd0f2615305456cb6cd608cffddf880f03c9
[INFO] running `Command { std: "docker" "start" "-a" "31d253f992069504ab519cf5aa4cdd0f2615305456cb6cd608cffddf880f03c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31d253f992069504ab519cf5aa4cdd0f2615305456cb6cd608cffddf880f03c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31d253f992069504ab519cf5aa4cdd0f2615305456cb6cd608cffddf880f03c9", kill_on_drop: false }`
[INFO] [stdout] 31d253f992069504ab519cf5aa4cdd0f2615305456cb6cd608cffddf880f03c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc68332bec001fb914372ca9c526266b196e6b3ab070ca848c38284190e6a419
[INFO] running `Command { std: "docker" "start" "-a" "fc68332bec001fb914372ca9c526266b196e6b3ab070ca848c38284190e6a419", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]     Checking rle-decode-fast v1.0.3
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]     Checking generics v0.3.2
[INFO] [stderr]     Checking macro-attr-2018 v1.1.2
[INFO] [stderr]    Compiling lz4-sys v1.9.4
[INFO] [stderr]     Checking libflate_lz77 v1.2.0
[INFO] [stderr]     Checking newtype-derive-2018 v0.0.3
[INFO] [stderr]     Checking libflate v1.4.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling bytemuck_derive v1.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling enumflags2_derive v0.7.9
[INFO] [stderr]     Checking enumflags2 v0.7.9
[INFO] [stderr]     Checking bytemuck v1.14.3
[INFO] [stderr]     Checking lz4 v1.24.0
[INFO] [stderr]  Documenting bsalib v0.1.0 (/opt/rustwide/workdir)
[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(associated_type_defaults, wrapping_int_impl, specialization, arbitrary_enum_discriminant)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `arbitrary_enum_discriminant` has been stable since `1.66.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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 `bsalib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.76.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type lib --crate-name bsalib src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=9998f4fd99275749 -L dependency=/opt/rustwide/target/debug/deps --extern bytemuck=/opt/rustwide/target/debug/deps/libbytemuck-191197ef945b6263.rmeta --extern enumflags2=/opt/rustwide/target/debug/deps/libenumflags2-515c1564cb9f54c1.rmeta --extern libflate=/opt/rustwide/target/debug/deps/liblibflate-045dcb151d83501a.rmeta --extern lz4=/opt/rustwide/target/debug/deps/liblz4-6841cf9df69b5be4.rmeta --extern macro_attr_2018=/opt/rustwide/target/debug/deps/libmacro_attr_2018-477ca44924d768c3.rmeta --extern newtype_derive_2018=/opt/rustwide/target/debug/deps/libnewtype_derive_2018-6c09fe4f38aefe8c.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-ad5887282137f653.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "fc68332bec001fb914372ca9c526266b196e6b3ab070ca848c38284190e6a419", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc68332bec001fb914372ca9c526266b196e6b3ab070ca848c38284190e6a419", kill_on_drop: false }`
[INFO] [stdout] fc68332bec001fb914372ca9c526266b196e6b3ab070ca848c38284190e6a419
