[INFO] fetching crate hidefix 0.2.0...
[INFO] documenting hidefix-0.2.0 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate hidefix 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate hidefix 0.2.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hidefix 0.2.0
[INFO] finished tweaking crates.io crate hidefix 0.2.0
[INFO] tweaked toml for crates.io crate hidefix 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate hidefix 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c7b67603c48b5ed980271d43b0f964b6e6eec5a812b3b24831c62749da2b98b
[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" "9c7b67603c48b5ed980271d43b0f964b6e6eec5a812b3b24831c62749da2b98b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c7b67603c48b5ed980271d43b0f964b6e6eec5a812b3b24831c62749da2b98b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c7b67603c48b5ed980271d43b0f964b6e6eec5a812b3b24831c62749da2b98b", kill_on_drop: false }`
[INFO] [stdout] 9c7b67603c48b5ed980271d43b0f964b6e6eec5a812b3b24831c62749da2b98b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e7652cbee4e7565510755ee83a71d698930abc790f99c7704f903de857c8707
[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" "0e7652cbee4e7565510755ee83a71d698930abc790f99c7704f903de857c8707", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]    Compiling hdf5 v0.7.0
[INFO] [stderr]     Checking strength_reduce v0.2.3
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling libdeflate-sys v0.5.0
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]    Compiling hdf5-src v0.7.0
[INFO] [stderr]     Checking hdf5-types v0.7.0
[INFO] [stderr]     Checking num-complex v0.2.4
[INFO] [stderr]    Compiling hdf5-sys v0.7.0
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking lru v0.6.0
[INFO] [stderr]     Checking libdeflater v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling hdf5-derive v0.7.0
[INFO] [stderr]    Compiling zerocopy-derive v0.2.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.0
[INFO] [stderr]     Checking async-stream v0.3.0
[INFO] [stderr]     Checking zerocopy v0.3.0
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling num_enum_derive v0.5.1
[INFO] [stderr]     Checking num_enum v0.5.1
[INFO] [stderr]     Checking flexbuffers v0.1.1
[INFO] [stderr]     Checking hidefix v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting hidefix v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | #![feature(test)]
[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:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | #![feature(const_generics, fixed_size_array, cow_is_borrowed)]
[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:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | #![feature(test)]
[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:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | #![feature(const_generics, fixed_size_array, cow_is_borrowed)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 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 `hidefix`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name hidefix src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="static"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-939bb92c8d96bb88.rmeta --extern async_stream=/opt/rustwide/target/debug/deps/libasync_stream-8fccc25658f04e30.rmeta --extern bincode=/opt/rustwide/target/debug/deps/libbincode-5f7a5333ab8fd99e.rmeta --extern byte_slice_cast=/opt/rustwide/target/debug/deps/libbyte_slice_cast-3879bf25c48ef786.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-c28f5fd38aa58f5e.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-060d9d2e342fea55.rmeta --extern flexbuffers=/opt/rustwide/target/debug/deps/libflexbuffers-ccb75e2b593c76b9.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-6df982d9107d118b.rmeta --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-be8a27a0dc58093d.rmeta --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-a7a39778c4f879bd.rmeta --extern hdf5=/opt/rustwide/target/debug/deps/libhdf5-1fca30369f103ae5.rmeta --extern hdf5_sys=/opt/rustwide/target/debug/deps/libhdf5_sys-9ed590dfc0b25631.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-0b72e8ad65a84c6a.rmeta --extern libdeflater=/opt/rustwide/target/debug/deps/liblibdeflater-d0728a8f47f3f123.rmeta --extern lru=/opt/rustwide/target/debug/deps/liblru-72fe189aa2149cad.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-db4c437c0bd495e3.rmeta --extern serde_bytes=/opt/rustwide/target/debug/deps/libserde_bytes-b50bf07908f24b36.rmeta --extern strength_reduce=/opt/rustwide/target/debug/deps/libstrength_reduce-0358575ee9dc21e2.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-0ae135ce45fbd156.rmeta --extern zerocopy=/opt/rustwide/target/debug/deps/libzerocopy-e63abff006873555.rmeta --cap-lints=warn --crate-version 0.2.0` (exit code: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "0e7652cbee4e7565510755ee83a71d698930abc790f99c7704f903de857c8707", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e7652cbee4e7565510755ee83a71d698930abc790f99c7704f903de857c8707", kill_on_drop: false }`
[INFO] [stdout] 0e7652cbee4e7565510755ee83a71d698930abc790f99c7704f903de857c8707
