[INFO] cloning repository https://github.com/simonjiao/learning-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simonjiao/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonjiao%2Flearning-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonjiao%2Flearning-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8e8f46e8831e9c70b907852e2f9c9868463fe878
[INFO] documenting simonjiao/learning-rust against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonjiao%2Flearning-rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/simonjiao/learning-rust on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/simonjiao/learning-rust
[INFO] finished tweaking git repo https://github.com/simonjiao/learning-rust
[INFO] tweaked toml for git repo https://github.com/simonjiao/learning-rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/simonjiao/learning-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d2d04ecf583ac16f59d3aa7fdec011f88aa7ceb03fe783f763c95f6000aecea
[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" "9d2d04ecf583ac16f59d3aa7fdec011f88aa7ceb03fe783f763c95f6000aecea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d2d04ecf583ac16f59d3aa7fdec011f88aa7ceb03fe783f763c95f6000aecea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d2d04ecf583ac16f59d3aa7fdec011f88aa7ceb03fe783f763c95f6000aecea", kill_on_drop: false }`
[INFO] [stdout] 9d2d04ecf583ac16f59d3aa7fdec011f88aa7ceb03fe783f763c95f6000aecea
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] ebdd54ac73038ef92f9c96e100df292e8aab8b65480753cda157b5c61b5c70bb
[INFO] running `Command { std: "docker" "start" "-a" "ebdd54ac73038ef92f9c96e100df292e8aab8b65480753cda157b5c61b5c70bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]    Compiling rustls v0.20.4
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking bytemuck v1.9.1
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking sahw4 v0.1.0 (/opt/rustwide/workdir/sahw4)
[INFO] [stderr]  Documenting sahw4 v0.1.0 (/opt/rustwide/workdir/sahw4)
[INFO] [stderr]  Documenting sahw2 v0.1.0 (/opt/rustwide/workdir/sahw2)
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]     Checking tracing-core v0.1.24
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking rustls-pemfile v0.3.0
[INFO] [stderr]     Checking crossbeam-utils v0.8.8
[INFO] [stderr]     Checking crc32fast v1.3.2
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking futures-util v0.3.21
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]     Checking crossbeam-queue v0.3.5
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]    Compiling libsqlite3-sys v0.22.2
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking filetime v0.2.15
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking tar v0.4.38
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking crossbeam v0.8.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking hashlink v0.7.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking webpki-roots v0.22.2
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling tracing-attributes v0.1.20
[INFO] [stderr]     Checking rusqlite v0.25.4
[INFO] [stderr]     Checking tracing v0.1.32
[INFO] [stderr]     Checking serde v1.0.136
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking mio v0.8.2
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking syslog v5.0.0
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking tokio-util v0.7.1
[INFO] [stderr]     Checking tokio-rustls v0.23.3
[INFO] [stderr]     Checking h2 v0.3.13
[INFO] [stderr]     Checking hyper v0.14.18
[INFO] [stderr]     Checking hyper-rustls v0.23.0
[INFO] [stderr]     Checking reqwest v0.11.10
[INFO] [stderr]  Documenting learning-rust v0.1.0 (/opt/rustwide/workdir/cookbook)
[INFO] [stderr]     Checking learning-rust v0.1.0 (/opt/rustwide/workdir/cookbook)
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]   --> cookbook/src/encoding/character_set.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | /// https://url.spec.whatwg.org/#fragment-percent-encode-set
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://url.spec.whatwg.org/#fragment-percent-encode-set>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::bare_urls)]` on by default
[INFO] [stdout]    = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `learning-rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name develop_tools cookbook/src/bin/develop_tools.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=559d53db3b86f597 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-f1182eb1ea07fabc.rmeta --extern base64=/opt/rustwide/target/debug/deps/libbase64-277e048baafe960a.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-885ae3214f28c119.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-21d0a7105b7fc30b.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-a20c5d76c8679345.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-48e12ce205b0f053.rmeta --extern csv=/opt/rustwide/target/debug/deps/libcsv-c2dee16edaf394f8.rmeta --extern data_encoding=/opt/rustwide/target/debug/deps/libdata_encoding-0f5d7e9bf36b9b28.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-3693cb7205d424b9.rmeta --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-a716ab11ec928f3f.rmeta --extern flate2=/opt/rustwide/target/debug/deps/libflate2-a0f7807630845bd2.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-2129c1460a18c11d.rmeta --extern image=/opt/rustwide/target/debug/deps/libimage-86a236f9055bd059.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-701e134f05ff346a.rmeta --extern learning_rust=/opt/rustwide/target/debug/deps/liblearning_rust-aafdac16478916a0.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-25b88c997b76e54d.rmeta --extern memmap=/opt/rustwide/target/debug/deps/libmemmap-f673ac7f82e5fb17.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-93a6ab86a9f03a6e.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-9f4466bc320c7148.rmeta --extern percent_encoding=/opt/rustwide/target/debug/deps/libpercent_encoding-7752a685f98d59d0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-0d0dd5828719ddd5.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-f7e0997c4c9847e0.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-53c901764b5c5d30.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-86113ee8d116c2bd.rmeta --extern ring=/opt/rustwide/target/debug/deps/libring-7cf5356f32902973.rmeta --extern rusqlite=/opt/rustwide/target/debug/deps/librusqlite-cfd660f2f77704ed.rmeta --extern same_file=/opt/rustwide/target/debug/deps/libsame_file-03134bf524d1632d.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-17c23225a1c370ce.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-1f34807f232914de.rmeta --extern syslog=/opt/rustwide/target/debug/deps/libsyslog-7225ca464eef0a28.rmeta --extern tar=/opt/rustwide/target/debug/deps/libtar-c96ad1ad371aed98.rmeta --extern threadpool=/opt/rustwide/target/debug/deps/libthreadpool-96ead66609847d62.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-2628a44b0989a744.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-2cb8d24f6bca81a7.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-d3d6186354e1d0a7.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not document `learning-rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name memory_management cookbook/src/bin/memory_management.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=3661a7eef592a797 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-f1182eb1ea07fabc.rmeta --extern base64=/opt/rustwide/target/debug/deps/libbase64-277e048baafe960a.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-885ae3214f28c119.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-21d0a7105b7fc30b.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-a20c5d76c8679345.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-48e12ce205b0f053.rmeta --extern csv=/opt/rustwide/target/debug/deps/libcsv-c2dee16edaf394f8.rmeta --extern data_encoding=/opt/rustwide/target/debug/deps/libdata_encoding-0f5d7e9bf36b9b28.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-3693cb7205d424b9.rmeta --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-a716ab11ec928f3f.rmeta --extern flate2=/opt/rustwide/target/debug/deps/libflate2-a0f7807630845bd2.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-2129c1460a18c11d.rmeta --extern image=/opt/rustwide/target/debug/deps/libimage-86a236f9055bd059.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-701e134f05ff346a.rmeta --extern learning_rust=/opt/rustwide/target/debug/deps/liblearning_rust-aafdac16478916a0.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-25b88c997b76e54d.rmeta --extern memmap=/opt/rustwide/target/debug/deps/libmemmap-f673ac7f82e5fb17.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-93a6ab86a9f03a6e.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-9f4466bc320c7148.rmeta --extern percent_encoding=/opt/rustwide/target/debug/deps/libpercent_encoding-7752a685f98d59d0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-0d0dd5828719ddd5.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-f7e0997c4c9847e0.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-53c901764b5c5d30.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-86113ee8d116c2bd.rmeta --extern ring=/opt/rustwide/target/debug/deps/libring-7cf5356f32902973.rmeta --extern rusqlite=/opt/rustwide/target/debug/deps/librusqlite-cfd660f2f77704ed.rmeta --extern same_file=/opt/rustwide/target/debug/deps/libsame_file-03134bf524d1632d.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-17c23225a1c370ce.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-1f34807f232914de.rmeta --extern syslog=/opt/rustwide/target/debug/deps/libsyslog-7225ca464eef0a28.rmeta --extern tar=/opt/rustwide/target/debug/deps/libtar-c96ad1ad371aed98.rmeta --extern threadpool=/opt/rustwide/target/debug/deps/libthreadpool-96ead66609847d62.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-2628a44b0989a744.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-2cb8d24f6bca81a7.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-d3d6186354e1d0a7.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `learning-rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name sort_vector cookbook/src/bin/sort_vector.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=e482c5a6d7ae3cea -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-f1182eb1ea07fabc.rmeta --extern base64=/opt/rustwide/target/debug/deps/libbase64-277e048baafe960a.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-885ae3214f28c119.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-21d0a7105b7fc30b.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-a20c5d76c8679345.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-48e12ce205b0f053.rmeta --extern csv=/opt/rustwide/target/debug/deps/libcsv-c2dee16edaf394f8.rmeta --extern data_encoding=/opt/rustwide/target/debug/deps/libdata_encoding-0f5d7e9bf36b9b28.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-3693cb7205d424b9.rmeta --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-a716ab11ec928f3f.rmeta --extern flate2=/opt/rustwide/target/debug/deps/libflate2-a0f7807630845bd2.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-2129c1460a18c11d.rmeta --extern image=/opt/rustwide/target/debug/deps/libimage-86a236f9055bd059.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-701e134f05ff346a.rmeta --extern learning_rust=/opt/rustwide/target/debug/deps/liblearning_rust-aafdac16478916a0.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-25b88c997b76e54d.rmeta --extern memmap=/opt/rustwide/target/debug/deps/libmemmap-f673ac7f82e5fb17.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-93a6ab86a9f03a6e.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-9f4466bc320c7148.rmeta --extern percent_encoding=/opt/rustwide/target/debug/deps/libpercent_encoding-7752a685f98d59d0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-0d0dd5828719ddd5.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-f7e0997c4c9847e0.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-53c901764b5c5d30.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-86113ee8d116c2bd.rmeta --extern ring=/opt/rustwide/target/debug/deps/libring-7cf5356f32902973.rmeta --extern rusqlite=/opt/rustwide/target/debug/deps/librusqlite-cfd660f2f77704ed.rmeta --extern same_file=/opt/rustwide/target/debug/deps/libsame_file-03134bf524d1632d.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-17c23225a1c370ce.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-1f34807f232914de.rmeta --extern syslog=/opt/rustwide/target/debug/deps/libsyslog-7225ca464eef0a28.rmeta --extern tar=/opt/rustwide/target/debug/deps/libtar-c96ad1ad371aed98.rmeta --extern threadpool=/opt/rustwide/target/debug/deps/libthreadpool-96ead66609847d62.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-2628a44b0989a744.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-2cb8d24f6bca81a7.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-d3d6186354e1d0a7.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `learning-rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name cryptography cookbook/src/bin/cryptography.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=4f9ed0cf56e74b53 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-f1182eb1ea07fabc.rmeta --extern base64=/opt/rustwide/target/debug/deps/libbase64-277e048baafe960a.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-885ae3214f28c119.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-21d0a7105b7fc30b.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-a20c5d76c8679345.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-48e12ce205b0f053.rmeta --extern csv=/opt/rustwide/target/debug/deps/libcsv-c2dee16edaf394f8.rmeta --extern data_encoding=/opt/rustwide/target/debug/deps/libdata_encoding-0f5d7e9bf36b9b28.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-3693cb7205d424b9.rmeta --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-a716ab11ec928f3f.rmeta --extern flate2=/opt/rustwide/target/debug/deps/libflate2-a0f7807630845bd2.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-2129c1460a18c11d.rmeta --extern image=/opt/rustwide/target/debug/deps/libimage-86a236f9055bd059.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-701e134f05ff346a.rmeta --extern learning_rust=/opt/rustwide/target/debug/deps/liblearning_rust-aafdac16478916a0.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-25b88c997b76e54d.rmeta --extern memmap=/opt/rustwide/target/debug/deps/libmemmap-f673ac7f82e5fb17.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-93a6ab86a9f03a6e.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-9f4466bc320c7148.rmeta --extern percent_encoding=/opt/rustwide/target/debug/deps/libpercent_encoding-7752a685f98d59d0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-0d0dd5828719ddd5.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-f7e0997c4c9847e0.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-53c901764b5c5d30.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-86113ee8d116c2bd.rmeta --extern ring=/opt/rustwide/target/debug/deps/libring-7cf5356f32902973.rmeta --extern rusqlite=/opt/rustwide/target/debug/deps/librusqlite-cfd660f2f77704ed.rmeta --extern same_file=/opt/rustwide/target/debug/deps/libsame_file-03134bf524d1632d.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-17c23225a1c370ce.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-1f34807f232914de.rmeta --extern syslog=/opt/rustwide/target/debug/deps/libsyslog-7225ca464eef0a28.rmeta --extern tar=/opt/rustwide/target/debug/deps/libtar-c96ad1ad371aed98.rmeta --extern threadpool=/opt/rustwide/target/debug/deps/libthreadpool-96ead66609847d62.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-2628a44b0989a744.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-2cb8d24f6bca81a7.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-d3d6186354e1d0a7.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `learning-rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name database cookbook/src/bin/database.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=0322aaf2ef4aa8c3 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-f1182eb1ea07fabc.rmeta --extern base64=/opt/rustwide/target/debug/deps/libbase64-277e048baafe960a.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-885ae3214f28c119.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-21d0a7105b7fc30b.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-a20c5d76c8679345.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-48e12ce205b0f053.rmeta --extern csv=/opt/rustwide/target/debug/deps/libcsv-c2dee16edaf394f8.rmeta --extern data_encoding=/opt/rustwide/target/debug/deps/libdata_encoding-0f5d7e9bf36b9b28.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-3693cb7205d424b9.rmeta --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-a716ab11ec928f3f.rmeta --extern flate2=/opt/rustwide/target/debug/deps/libflate2-a0f7807630845bd2.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-2129c1460a18c11d.rmeta --extern image=/opt/rustwide/target/debug/deps/libimage-86a236f9055bd059.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-701e134f05ff346a.rmeta --extern learning_rust=/opt/rustwide/target/debug/deps/liblearning_rust-aafdac16478916a0.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-25b88c997b76e54d.rmeta --extern memmap=/opt/rustwide/target/debug/deps/libmemmap-f673ac7f82e5fb17.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-93a6ab86a9f03a6e.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-9f4466bc320c7148.rmeta --extern percent_encoding=/opt/rustwide/target/debug/deps/libpercent_encoding-7752a685f98d59d0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-0d0dd5828719ddd5.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-f7e0997c4c9847e0.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-53c901764b5c5d30.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-86113ee8d116c2bd.rmeta --extern ring=/opt/rustwide/target/debug/deps/libring-7cf5356f32902973.rmeta --extern rusqlite=/opt/rustwide/target/debug/deps/librusqlite-cfd660f2f77704ed.rmeta --extern same_file=/opt/rustwide/target/debug/deps/libsame_file-03134bf524d1632d.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-17c23225a1c370ce.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-1f34807f232914de.rmeta --extern syslog=/opt/rustwide/target/debug/deps/libsyslog-7225ca464eef0a28.rmeta --extern tar=/opt/rustwide/target/debug/deps/libtar-c96ad1ad371aed98.rmeta --extern threadpool=/opt/rustwide/target/debug/deps/libthreadpool-96ead66609847d62.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-2628a44b0989a744.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-2cb8d24f6bca81a7.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-d3d6186354e1d0a7.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `learning-rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name encoding cookbook/src/bin/encoding.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=372cfb3d294c74c5 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-f1182eb1ea07fabc.rmeta --extern base64=/opt/rustwide/target/debug/deps/libbase64-277e048baafe960a.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-885ae3214f28c119.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-21d0a7105b7fc30b.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-a20c5d76c8679345.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-48e12ce205b0f053.rmeta --extern csv=/opt/rustwide/target/debug/deps/libcsv-c2dee16edaf394f8.rmeta --extern data_encoding=/opt/rustwide/target/debug/deps/libdata_encoding-0f5d7e9bf36b9b28.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-3693cb7205d424b9.rmeta --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-a716ab11ec928f3f.rmeta --extern flate2=/opt/rustwide/target/debug/deps/libflate2-a0f7807630845bd2.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-2129c1460a18c11d.rmeta --extern image=/opt/rustwide/target/debug/deps/libimage-86a236f9055bd059.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-701e134f05ff346a.rmeta --extern learning_rust=/opt/rustwide/target/debug/deps/liblearning_rust-aafdac16478916a0.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-25b88c997b76e54d.rmeta --extern memmap=/opt/rustwide/target/debug/deps/libmemmap-f673ac7f82e5fb17.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-93a6ab86a9f03a6e.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-9f4466bc320c7148.rmeta --extern percent_encoding=/opt/rustwide/target/debug/deps/libpercent_encoding-7752a685f98d59d0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-0d0dd5828719ddd5.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-f7e0997c4c9847e0.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-53c901764b5c5d30.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-86113ee8d116c2bd.rmeta --extern ring=/opt/rustwide/target/debug/deps/libring-7cf5356f32902973.rmeta --extern rusqlite=/opt/rustwide/target/debug/deps/librusqlite-cfd660f2f77704ed.rmeta --extern same_file=/opt/rustwide/target/debug/deps/libsame_file-03134bf524d1632d.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-17c23225a1c370ce.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-1f34807f232914de.rmeta --extern syslog=/opt/rustwide/target/debug/deps/libsyslog-7225ca464eef0a28.rmeta --extern tar=/opt/rustwide/target/debug/deps/libtar-c96ad1ad371aed98.rmeta --extern threadpool=/opt/rustwide/target/debug/deps/libthreadpool-96ead66609847d62.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-2628a44b0989a744.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-2cb8d24f6bca81a7.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-d3d6186354e1d0a7.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `learning-rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name macros cookbook/src/bin/macros.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=84a3dd889c801a9f -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-f1182eb1ea07fabc.rmeta --extern base64=/opt/rustwide/target/debug/deps/libbase64-277e048baafe960a.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-885ae3214f28c119.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-21d0a7105b7fc30b.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-a20c5d76c8679345.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-48e12ce205b0f053.rmeta --extern csv=/opt/rustwide/target/debug/deps/libcsv-c2dee16edaf394f8.rmeta --extern data_encoding=/opt/rustwide/target/debug/deps/libdata_encoding-0f5d7e9bf36b9b28.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-3693cb7205d424b9.rmeta --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-a716ab11ec928f3f.rmeta --extern flate2=/opt/rustwide/target/debug/deps/libflate2-a0f7807630845bd2.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-2129c1460a18c11d.rmeta --extern image=/opt/rustwide/target/debug/deps/libimage-86a236f9055bd059.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-701e134f05ff346a.rmeta --extern learning_rust=/opt/rustwide/target/debug/deps/liblearning_rust-aafdac16478916a0.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-25b88c997b76e54d.rmeta --extern memmap=/opt/rustwide/target/debug/deps/libmemmap-f673ac7f82e5fb17.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-93a6ab86a9f03a6e.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-9f4466bc320c7148.rmeta --extern percent_encoding=/opt/rustwide/target/debug/deps/libpercent_encoding-7752a685f98d59d0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-0d0dd5828719ddd5.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-f7e0997c4c9847e0.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-53c901764b5c5d30.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-86113ee8d116c2bd.rmeta --extern ring=/opt/rustwide/target/debug/deps/libring-7cf5356f32902973.rmeta --extern rusqlite=/opt/rustwide/target/debug/deps/librusqlite-cfd660f2f77704ed.rmeta --extern same_file=/opt/rustwide/target/debug/deps/libsame_file-03134bf524d1632d.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-17c23225a1c370ce.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-1f34807f232914de.rmeta --extern syslog=/opt/rustwide/target/debug/deps/libsyslog-7225ca464eef0a28.rmeta --extern tar=/opt/rustwide/target/debug/deps/libtar-c96ad1ad371aed98.rmeta --extern threadpool=/opt/rustwide/target/debug/deps/libthreadpool-96ead66609847d62.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-2628a44b0989a744.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-2cb8d24f6bca81a7.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-d3d6186354e1d0a7.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `learning-rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name compression cookbook/src/bin/compression.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=dfb19b7a388a0bbe -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-f1182eb1ea07fabc.rmeta --extern base64=/opt/rustwide/target/debug/deps/libbase64-277e048baafe960a.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-885ae3214f28c119.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-21d0a7105b7fc30b.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-a20c5d76c8679345.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-48e12ce205b0f053.rmeta --extern csv=/opt/rustwide/target/debug/deps/libcsv-c2dee16edaf394f8.rmeta --extern data_encoding=/opt/rustwide/target/debug/deps/libdata_encoding-0f5d7e9bf36b9b28.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-3693cb7205d424b9.rmeta --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-a716ab11ec928f3f.rmeta --extern flate2=/opt/rustwide/target/debug/deps/libflate2-a0f7807630845bd2.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-2129c1460a18c11d.rmeta --extern image=/opt/rustwide/target/debug/deps/libimage-86a236f9055bd059.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-701e134f05ff346a.rmeta --extern learning_rust=/opt/rustwide/target/debug/deps/liblearning_rust-aafdac16478916a0.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-25b88c997b76e54d.rmeta --extern memmap=/opt/rustwide/target/debug/deps/libmemmap-f673ac7f82e5fb17.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-93a6ab86a9f03a6e.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-9f4466bc320c7148.rmeta --extern percent_encoding=/opt/rustwide/target/debug/deps/libpercent_encoding-7752a685f98d59d0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-0d0dd5828719ddd5.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-f7e0997c4c9847e0.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-53c901764b5c5d30.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-86113ee8d116c2bd.rmeta --extern ring=/opt/rustwide/target/debug/deps/libring-7cf5356f32902973.rmeta --extern rusqlite=/opt/rustwide/target/debug/deps/librusqlite-cfd660f2f77704ed.rmeta --extern same_file=/opt/rustwide/target/debug/deps/libsame_file-03134bf524d1632d.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-17c23225a1c370ce.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-1f34807f232914de.rmeta --extern syslog=/opt/rustwide/target/debug/deps/libsyslog-7225ca464eef0a28.rmeta --extern tar=/opt/rustwide/target/debug/deps/libtar-c96ad1ad371aed98.rmeta --extern threadpool=/opt/rustwide/target/debug/deps/libthreadpool-96ead66609847d62.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-2628a44b0989a744.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-2cb8d24f6bca81a7.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-d3d6186354e1d0a7.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `learning-rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name operating_system cookbook/src/bin/operating_system.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=ce56084666c7b61e -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-f1182eb1ea07fabc.rmeta --extern base64=/opt/rustwide/target/debug/deps/libbase64-277e048baafe960a.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-885ae3214f28c119.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-21d0a7105b7fc30b.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-a20c5d76c8679345.rmeta --extern crossbeam_channel=/opt/rustwide/target/debug/deps/libcrossbeam_channel-48e12ce205b0f053.rmeta --extern csv=/opt/rustwide/target/debug/deps/libcsv-c2dee16edaf394f8.rmeta --extern data_encoding=/opt/rustwide/target/debug/deps/libdata_encoding-0f5d7e9bf36b9b28.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-3693cb7205d424b9.rmeta --extern error_chain=/opt/rustwide/target/debug/deps/liberror_chain-a716ab11ec928f3f.rmeta --extern flate2=/opt/rustwide/target/debug/deps/libflate2-a0f7807630845bd2.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-2129c1460a18c11d.rmeta --extern image=/opt/rustwide/target/debug/deps/libimage-86a236f9055bd059.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-701e134f05ff346a.rmeta --extern learning_rust=/opt/rustwide/target/debug/deps/liblearning_rust-aafdac16478916a0.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-25b88c997b76e54d.rmeta --extern memmap=/opt/rustwide/target/debug/deps/libmemmap-f673ac7f82e5fb17.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-93a6ab86a9f03a6e.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-9f4466bc320c7148.rmeta --extern percent_encoding=/opt/rustwide/target/debug/deps/libpercent_encoding-7752a685f98d59d0.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-0d0dd5828719ddd5.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-f7e0997c4c9847e0.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-53c901764b5c5d30.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-86113ee8d116c2bd.rmeta --extern ring=/opt/rustwide/target/debug/deps/libring-7cf5356f32902973.rmeta --extern rusqlite=/opt/rustwide/target/debug/deps/librusqlite-cfd660f2f77704ed.rmeta --extern same_file=/opt/rustwide/target/debug/deps/libsame_file-03134bf524d1632d.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-17c23225a1c370ce.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-1f34807f232914de.rmeta --extern syslog=/opt/rustwide/target/debug/deps/libsyslog-7225ca464eef0a28.rmeta --extern tar=/opt/rustwide/target/debug/deps/libtar-c96ad1ad371aed98.rmeta --extern threadpool=/opt/rustwide/target/debug/deps/libthreadpool-96ead66609847d62.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-2628a44b0989a744.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-2cb8d24f6bca81a7.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-d3d6186354e1d0a7.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "ebdd54ac73038ef92f9c96e100df292e8aab8b65480753cda157b5c61b5c70bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebdd54ac73038ef92f9c96e100df292e8aab8b65480753cda157b5c61b5c70bb", kill_on_drop: false }`
[INFO] [stdout] ebdd54ac73038ef92f9c96e100df292e8aab8b65480753cda157b5c61b5c70bb