[INFO] cloning repository https://github.com/QuartzLibrary/glowpub
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/QuartzLibrary/glowpub" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQuartzLibrary%2Fglowpub", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQuartzLibrary%2Fglowpub'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e20aeadafc7cddcbd9d91d4f289070afd328fc28
[INFO] documenting QuartzLibrary/glowpub against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQuartzLibrary%2Fglowpub" "/workspace/builds/worker-34/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-34/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/QuartzLibrary/glowpub 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 git repo https://github.com/QuartzLibrary/glowpub
[INFO] finished tweaking git repo https://github.com/QuartzLibrary/glowpub
[INFO] tweaked toml for git repo https://github.com/QuartzLibrary/glowpub written to /workspace/builds/worker-34/source/Cargo.toml
[INFO] crate git repo https://github.com/QuartzLibrary/glowpub already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/lise-henry/epub-builder`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded data-url v0.1.1
[INFO] [stderr]   Downloaded parking_lot_core v0.9.2
[INFO] [stderr]   Downloaded ttf-parser v0.15.0
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.34.0
[INFO] [stderr]   Downloaded resvg v0.22.0
[INFO] [stderr]   Downloaded ammonia v3.2.0
[INFO] [stderr]   Downloaded futf v0.1.5
[INFO] [stderr]   Downloaded mac v0.1.1
[INFO] [stderr]   Downloaded tendril v0.4.3
[INFO] [stderr]   Downloaded smawk v0.3.1
[INFO] [stderr]   Downloaded utf8-width v0.1.6
[INFO] [stderr]   Downloaded phf_shared v0.10.0
[INFO] [stderr]   Downloaded utf-8 v0.7.6
[INFO] [stderr]   Downloaded tempdir v0.3.7
[INFO] [stderr]   Downloaded phf_codegen v0.10.0
[INFO] [stderr]   Downloaded phf_generator v0.10.0
[INFO] [stderr]   Downloaded precomputed-hash v0.1.1
[INFO] [stderr]   Downloaded new_debug_unreachable v1.0.4
[INFO] [stderr]   Downloaded phf v0.10.1
[INFO] [stderr]   Downloaded pkg-config v0.3.25
[INFO] [stderr]   Downloaded backtrace v0.3.65
[INFO] [stderr]   Downloaded usvg v0.22.0
[INFO] [stderr]   Downloaded string_cache_codegen v0.5.2
[INFO] [stderr]   Downloaded roxmltree v0.14.1
[INFO] [stderr]   Downloaded rctree v0.4.0
[INFO] [stderr]   Downloaded rgb v0.8.32
[INFO] [stderr]   Downloaded unicode-linebreak v0.1.2
[INFO] [stderr]   Downloaded unicode-bidi-mirroring v0.1.0
[INFO] [stderr]   Downloaded unicode-ccc v0.1.2
[INFO] [stderr]   Downloaded simplecss v0.2.1
[INFO] [stderr]   Downloaded weezl v0.1.6
[INFO] [stderr]   Downloaded ipnet v2.5.0
[INFO] [stderr]   Downloaded gif v0.11.3
[INFO] [stderr]   Downloaded unicode-general-category v0.4.0
[INFO] [stderr]   Downloaded markup5ever v0.11.0
[INFO] [stderr]   Downloaded env_logger v0.8.4
[INFO] [stderr]   Downloaded safe_arch v0.5.2
[INFO] [stderr]   Downloaded tiny-skia v0.6.3
[INFO] [stderr]   Downloaded string_cache v0.8.4
[INFO] [stderr]   Downloaded unicode-vo v0.1.0
[INFO] [stderr]   Downloaded object v0.28.3
[INFO] [stderr]   Downloaded error-chain v0.12.4
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.30
[INFO] [stderr]   Downloaded pico-args v0.4.2
[INFO] [stderr]   Downloaded html-escape v0.2.11
[INFO] [stderr]   Downloaded kurbo v0.8.3
[INFO] [stderr]   Downloaded fontdb v0.9.1
[INFO] [stderr]   Downloaded xmlparser v0.13.3
[INFO] [stderr]   Downloaded html5ever v0.26.0
[INFO] [stderr]   Downloaded float-cmp v0.9.0
[INFO] [stderr]   Downloaded svgtypes v0.8.0
[INFO] [stderr]   Downloaded unicode-script v0.5.4
[INFO] [stderr]   Downloaded xmlwriter v0.1.0
[INFO] [stderr]   Downloaded bytemuck v1.9.1
[INFO] [stderr]   Downloaded zip v0.5.13
[INFO] [stderr]   Downloaded siphasher v0.3.10
[INFO] [stderr]   Downloaded flate2 v1.0.23
[INFO] [stderr]   Downloaded color_quant v1.1.0
[INFO] [stderr]   Downloaded memmap2 v0.5.3
[INFO] [stderr]   Downloaded fontconfig-parser v0.5.0
[INFO] [stderr]   Downloaded svgfilters v0.4.0
[INFO] [stderr]   Downloaded mustache v0.9.0
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.34.0
[INFO] [stderr]   Downloaded windows_i686_msvc v0.34.0
[INFO] [stderr]   Downloaded libc v0.2.124
[INFO] [stderr]   Downloaded web-sys v0.3.57
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.34.0
[INFO] [stderr]   Downloaded windows_i686_gnu v0.34.0
[INFO] [stderr]   Downloaded jpeg-decoder v0.2.6
[INFO] [stderr]   Downloaded rustybuzz v0.5.0
[INFO] [stderr]   Downloaded windows-sys v0.34.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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] [stdout] f8b794cd9e28bc7179eb692eff920b59430b5a26c3e451b072b237634b5af4ea
[INFO] running `Command { std: "docker" "start" "-a" "f8b794cd9e28bc7179eb692eff920b59430b5a26c3e451b072b237634b5af4ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8b794cd9e28bc7179eb692eff920b59430b5a26c3e451b072b237634b5af4ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8b794cd9e28bc7179eb692eff920b59430b5a26c3e451b072b237634b5af4ea", kill_on_drop: false }`
[INFO] [stdout] f8b794cd9e28bc7179eb692eff920b59430b5a26c3e451b072b237634b5af4ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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] 039e7f9c247239defc7191dfbc4926ad46e053c648ed54d84c5f653f30874a16
[INFO] running `Command { std: "docker" "start" "-a" "039e7f9c247239defc7191dfbc4926ad46e053c648ed54d84c5f653f30874a16", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling parking_lot_core v0.9.2
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]     Checking bytemuck v1.9.1
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling httparse v1.7.0
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking xmlparser v0.13.3
[INFO] [stderr]    Compiling unicode-general-category v0.4.0
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking ttf-parser v0.15.0
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking unicode-script v0.5.4
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking unicode-ccc v0.1.2
[INFO] [stderr]     Checking unicode-bidi-mirroring v0.1.0
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]     Checking rctree v0.4.0
[INFO] [stderr]     Checking pico-args v0.4.2
[INFO] [stderr]     Checking unicode-vo v0.1.0
[INFO] [stderr]     Checking weezl v0.1.6
[INFO] [stderr]     Checking xmlwriter v0.1.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking utf8-width v0.1.6
[INFO] [stderr]     Checking ipnet v2.5.0
[INFO] [stderr]     Checking smawk v0.3.1
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking jpeg-decoder v0.2.6
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]     Checking miniz_oxide v0.5.1
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]     Checking tracing-core v0.1.26
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking deflate v1.0.0
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking data-url v0.1.1
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]     Checking object v0.28.3
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]     Checking futf v0.1.5
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]     Checking rgb v0.8.32
[INFO] [stderr]     Checking safe_arch v0.5.2
[INFO] [stderr]     Checking svgtypes v0.8.0
[INFO] [stderr]     Checking html-escape v0.2.11
[INFO] [stderr]     Checking kurbo v0.8.3
[INFO] [stderr]     Checking tendril v0.4.3
[INFO] [stderr]     Checking roxmltree v0.14.1
[INFO] [stderr]     Checking phf v0.10.1
[INFO] [stderr]     Checking gif v0.11.3
[INFO] [stderr]     Checking svgfilters v0.4.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking simplecss v0.2.1
[INFO] [stderr]     Checking png v0.17.5
[INFO] [stderr]     Checking fontconfig-parser v0.5.0
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling backtrace v0.3.65
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking mio v0.8.2
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking memmap2 v0.5.3
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand v0.4.6
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[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking tiny-skia v0.6.3
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]     Checking fontdb v0.9.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]     Checking rustybuzz v0.5.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling unicode-linebreak v0.1.2
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.2
[INFO] [stderr]    Compiling phf_codegen v0.10.0
[INFO] [stderr]    Compiling markup5ever v0.11.0
[INFO] [stderr]     Checking usvg v0.22.0
[INFO] [stderr]     Checking resvg v0.22.0
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.20
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling html5ever v0.26.0
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking tracing v0.1.34
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking zip v0.5.13
[INFO] [stderr]     Checking serde v1.0.136
[INFO] [stderr]     Checking tokio-util v0.7.1
[INFO] [stderr]     Checking h2 v0.3.13
[INFO] [stderr]     Checking string_cache v0.8.4
[INFO] [stderr]     Checking mustache v0.9.0
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking hyper v0.14.18
[INFO] [stderr]     Checking epub-builder v0.5.0 (https://github.com/lise-henry/epub-builder#e989f9e8)
[INFO] [stderr]     Checking ammonia v3.2.0
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.10
[INFO] [stderr]  Documenting glowfic_to_epub 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:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(iter_intersperse)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 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 `glowfic_to_epub`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name glowfic_to_epub src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=a8cdcb5f87f40b59 -L dependency=/opt/rustwide/target/debug/deps --extern ammonia=/opt/rustwide/target/debug/deps/libammonia-4f2ad55ea72ae4f1.rmeta --extern epub_builder=/opt/rustwide/target/debug/deps/libepub_builder-cb369717c0ce57ce.rmeta --extern fontdb=/opt/rustwide/target/debug/deps/libfontdb-875909677629156c.rmeta --extern glob=/opt/rustwide/target/debug/deps/libglob-ad7a2bc260eeb594.rmeta --extern mime=/opt/rustwide/target/debug/deps/libmime-1d79507d89b2ca88.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-cb768725e26a3b91.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-ded6185c1cf513be.rmeta --extern resvg=/opt/rustwide/target/debug/deps/libresvg-4b55e92f25eede26.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-d00d83ee84c4fea9.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-ff791c12e3d40d1a.rmeta --extern textwrap=/opt/rustwide/target/debug/deps/libtextwrap-9b5d612f704e270a.rmeta --extern tiny_skia=/opt/rustwide/target/debug/deps/libtiny_skia-26cd624501896df3.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-06a6b724b4612cf9.rmeta --extern usvg=/opt/rustwide/target/debug/deps/libusvg-c7d66983369b6633.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "039e7f9c247239defc7191dfbc4926ad46e053c648ed54d84c5f653f30874a16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "039e7f9c247239defc7191dfbc4926ad46e053c648ed54d84c5f653f30874a16", kill_on_drop: false }`
[INFO] [stdout] 039e7f9c247239defc7191dfbc4926ad46e053c648ed54d84c5f653f30874a16