[INFO] fetching crate bsalib 0.1.0...
[INFO] documenting bsalib-0.1.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate bsalib 0.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate bsalib 0.1.0 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded generics v0.3.2
[INFO] [stderr]   Downloaded newtype-derive-2018 v0.0.3
[INFO] [stderr]   Downloaded macro-attr-2018 v1.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cac03d22e04461ef773619d7dec103bfe3902cc4c4e7f2b157301aafb38234e6
[INFO] running `Command { std: "docker" "start" "-a" "cac03d22e04461ef773619d7dec103bfe3902cc4c4e7f2b157301aafb38234e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cac03d22e04461ef773619d7dec103bfe3902cc4c4e7f2b157301aafb38234e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cac03d22e04461ef773619d7dec103bfe3902cc4c4e7f2b157301aafb38234e6", kill_on_drop: false }`
[INFO] [stdout] cac03d22e04461ef773619d7dec103bfe3902cc4c4e7f2b157301aafb38234e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad440b56910970283d8c86861114ef694a55caeb7f6f4e6ad4162a71cfbcf678
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ad440b56910970283d8c86861114ef694a55caeb7f6f4e6ad4162a71cfbcf678", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking generics v0.3.2
[INFO] [stderr]     Checking macro-attr-2018 v1.1.2
[INFO] [stderr]     Checking libflate_lz77 v1.1.0
[INFO] [stderr]     Checking crc32fast v1.3.2
[INFO] [stderr]     Checking newtype-derive-2018 v0.0.3
[INFO] [stderr]     Checking libflate v1.2.0
[INFO] [stderr]    Compiling lz4-sys v1.9.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling enumflags2_derive v0.7.4
[INFO] [stderr]    Compiling bytemuck_derive v1.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking enumflags2 v0.7.5
[INFO] [stderr]     Checking bytemuck v1.9.1
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking lz4 v1.23.3
[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] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[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 `bsalib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `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=015cdfc03ec6bc43 -L dependency=/opt/rustwide/target/debug/deps --extern bytemuck=/opt/rustwide/target/debug/deps/libbytemuck-773f7a872cddd817.rmeta --extern enumflags2=/opt/rustwide/target/debug/deps/libenumflags2-7dbe4ea9d6688db1.rmeta --extern libflate=/opt/rustwide/target/debug/deps/liblibflate-14852167b7f165bd.rmeta --extern lz4=/opt/rustwide/target/debug/deps/liblz4-af906e3d817f8255.rmeta --extern macro_attr_2018=/opt/rustwide/target/debug/deps/libmacro_attr_2018-ed691a2279fd44e0.rmeta --extern newtype_derive_2018=/opt/rustwide/target/debug/deps/libnewtype_derive_2018-eb53ca60bb822332.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-df45c3ad67fe1eda.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "ad440b56910970283d8c86861114ef694a55caeb7f6f4e6ad4162a71cfbcf678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad440b56910970283d8c86861114ef694a55caeb7f6f4e6ad4162a71cfbcf678", kill_on_drop: false }`
[INFO] [stdout] ad440b56910970283d8c86861114ef694a55caeb7f6f4e6ad4162a71cfbcf678