[INFO] fetching crate piqel 0.202107.4...
[INFO] documenting piqel-0.202107.4 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate piqel 0.202107.4 into /workspace/builds/worker-52/source
[INFO] validating manifest of crates.io crate piqel 0.202107.4 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-52/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate piqel 0.202107.4
[INFO] finished tweaking crates.io crate piqel 0.202107.4
[INFO] tweaked toml for crates.io crate piqel 0.202107.4 written to /workspace/builds/worker-52/source/Cargo.toml
[INFO] crate crates.io crate piqel 0.202107.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc78e4fb8d29da8e88cff62dc86e2dce8a29ab2599d61da17ba9738f73ee3236
[INFO] running `Command { std: "docker" "start" "-a" "bc78e4fb8d29da8e88cff62dc86e2dce8a29ab2599d61da17ba9738f73ee3236", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc78e4fb8d29da8e88cff62dc86e2dce8a29ab2599d61da17ba9738f73ee3236", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc78e4fb8d29da8e88cff62dc86e2dce8a29ab2599d61da17ba9738f73ee3236", kill_on_drop: false }`
[INFO] [stdout] bc78e4fb8d29da8e88cff62dc86e2dce8a29ab2599d61da17ba9738f73ee3236
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9571246e8e62dd734c6bc24ce5f967f004135ae6e2246283ad205b07dee32bc
[INFO] running `Command { std: "docker" "start" "-a" "b9571246e8e62dd734c6bc24ce5f967f004135ae6e2246283ad205b07dee32bc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]    Compiling serde_partiql v1.1.64
[INFO] [stderr]    Compiling anyhow v1.0.41
[INFO] [stderr]     Checking collect-mac v0.1.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking bitvec v0.19.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking quick-xml v0.22.0
[INFO] [stderr]     Checking ordered-float v2.6.0
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]    Compiling structmeta-derive v0.1.3
[INFO] [stderr]    Compiling structmeta v0.1.3
[INFO] [stderr]    Compiling parse-display-derive v0.5.0
[INFO] [stderr]     Checking parse-display v0.5.0
[INFO] [stderr]  Documenting piqel v0.202107.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib/mod.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns)]
[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 `piqel`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name piqel src/lib/mod.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --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-6dd9ac488d04ae29.rmeta --extern atty=/opt/rustwide/target/debug/deps/libatty-a1196629b61c4065.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-a9fa56ed921671a2.rmeta --extern collect_mac=/opt/rustwide/target/debug/deps/libcollect_mac-200117ce2ef39ba8.rmeta --extern indexmap=/opt/rustwide/target/debug/deps/libindexmap-8c213dbb65122397.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-6635f409b49c75d7.rmeta --extern nom=/opt/rustwide/target/debug/deps/libnom-700d891af2cfae21.rmeta --extern ordered_float=/opt/rustwide/target/debug/deps/libordered_float-645d45ab543c6702.rmeta --extern parse_display=/opt/rustwide/target/debug/deps/libparse_display-2954860dfb1a08d4.rmeta --extern quick_xml=/opt/rustwide/target/debug/deps/libquick_xml-5c71a53456e59db2.rmeta --extern rayon=/opt/rustwide/target/debug/deps/librayon-37f4af207a9dee7b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-9e2d21caad08945c.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-f270ccfc62081e60.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-b4ac43b3061c071c.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-5f06838be3ff3edc.rmeta --extern serde_partiql=/opt/rustwide/target/debug/deps/libserde_partiql-22fbd63b653039f7.rmeta --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-5afd3e412a29a838.rmeta --extern toml=/opt/rustwide/target/debug/deps/libtoml-1fcdc86538b60aa3.rmeta --cap-lints=warn --crate-version 0.202107.4` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "b9571246e8e62dd734c6bc24ce5f967f004135ae6e2246283ad205b07dee32bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9571246e8e62dd734c6bc24ce5f967f004135ae6e2246283ad205b07dee32bc", kill_on_drop: false }`
[INFO] [stdout] b9571246e8e62dd734c6bc24ce5f967f004135ae6e2246283ad205b07dee32bc
