[INFO] cloning repository https://github.com/Mesagisto/mesagisto-center
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Mesagisto/mesagisto-center" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMesagisto%2Fmesagisto-center", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMesagisto%2Fmesagisto-center'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bac26e1ea7d6b125f1eb76b4407f72c229b3c63c
[INFO] documenting Mesagisto/mesagisto-center against 1.75.0 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMesagisto%2Fmesagisto-center" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Mesagisto/mesagisto-center on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/Mesagisto/mesagisto-center
[INFO] finished tweaking git repo https://github.com/Mesagisto/mesagisto-center
[INFO] tweaked toml for git repo https://github.com/Mesagisto/mesagisto-center written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Mesagisto/mesagisto-center already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/Itsusinn/automatic-config-rs.git`
[INFO] [stderr]     Updating git repository `https://github.com/Itsusinn/lateinit-rs.git`
[INFO] [stderr]     Updating git repository `https://github.com/Itsusinn/singleton-rs.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded console-subscriber v0.1.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d78cee7107279f3b1117d47354adde48e72f237bbdc081ac124ffc39ddf2d5b
[INFO] running `Command { std: "docker" "start" "-a" "3d78cee7107279f3b1117d47354adde48e72f237bbdc081ac124ffc39ddf2d5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d78cee7107279f3b1117d47354adde48e72f237bbdc081ac124ffc39ddf2d5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d78cee7107279f3b1117d47354adde48e72f237bbdc081ac124ffc39ddf2d5b", kill_on_drop: false }`
[INFO] [stdout] 3d78cee7107279f3b1117d47354adde48e72f237bbdc081ac124ffc39ddf2d5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e2e07564b610e4052cb98fe82bc381da6a8cc54ba0eb1e067a6674fa48eb4be
[INFO] running `Command { std: "docker" "start" "-a" "0e2e07564b610e4052cb98fe82bc381da6a8cc54ba0eb1e067a6674fa48eb4be", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.60
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling log v0.4.18
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling time-core v0.1.1
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling time-macros v0.2.9
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling tokio v1.28.2
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]     Checking percent-encoding v2.3.0
[INFO] [stderr]     Checking form_urlencoded v1.2.0
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]     Checking gimli v0.27.2
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking cpufeatures v0.2.7
[INFO] [stderr]    Compiling rustls v0.21.1
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking object v0.30.4
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking idna v0.4.0
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking ciborium-io v0.2.1
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking url v2.4.0
[INFO] [stderr]     Checking data-encoding v2.4.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking time v0.3.22
[INFO] [stderr]     Checking ciborium-ll v0.2.1
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking base64 v0.21.2
[INFO] [stderr]     Checking sha1 v0.10.5
[INFO] [stderr]     Checking unsafe-libyaml v0.2.8
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking dashmap v5.4.0
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking lateinit v0.1.0 (https://github.com/Itsusinn/lateinit-rs.git?branch=master#579ebbd1)
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking rustls-pemfile v1.0.2
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking addr2line v0.19.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.17
[INFO] [stderr]    Compiling singleton v0.1.0 (https://github.com/Itsusinn/singleton-rs.git?branch=master#bee321ce)
[INFO] [stderr]    Compiling automatic-config v0.1.0 (https://github.com/Itsusinn/automatic-config-rs.git?branch=master#04ce6dea)
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking rustls-webpki v0.100.1
[INFO] [stderr]    Compiling serde_derive v1.0.164
[INFO] [stderr]    Compiling tracing-attributes v0.1.24
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling enum-ordinalize v3.1.13
[INFO] [stderr]    Compiling educe v0.4.22
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking color-spantrace v0.2.0
[INFO] [stderr]     Checking color-eyre v0.6.2
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking uuid v1.3.3
[INFO] [stderr]     Checking arcstr v1.1.5
[INFO] [stderr]     Checking ciborium v0.2.1
[INFO] [stderr]     Checking serde_yaml v0.9.21
[INFO] [stderr]     Checking serde_bytes v0.11.9
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking tungstenite v0.19.0
[INFO] [stderr]     Checking tokio-tungstenite v0.19.0
[INFO] [stderr]     Checking tokio-rustls v0.24.0
[INFO] [stderr]  Documenting mesagisto-center v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_chains)]
[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 `mesagisto-center`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type bin --crate-name mesagisto_center src/main.rs -o /opt/rustwide/target/doc --cfg 'feature="color"' --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=cf195b5960f40e9e -L dependency=/opt/rustwide/target/debug/deps --extern arcstr=/opt/rustwide/target/debug/deps/libarcstr-fdf7247836b101d7.rmeta --extern automatic_config=/opt/rustwide/target/debug/deps/libautomatic_config-8c66cd366bb41dc7.so --extern bytes=/opt/rustwide/target/debug/deps/libbytes-73d15252abb86ae9.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-3c8819b5bf0a584c.rmeta --extern ciborium=/opt/rustwide/target/debug/deps/libciborium-a0760914c1f246b2.rmeta --extern color_eyre=/opt/rustwide/target/debug/deps/libcolor_eyre-e9f263fc4456e12c.rmeta --extern colored=/opt/rustwide/target/debug/deps/libcolored-b2f092c0ac4a8019.rmeta --extern dashmap=/opt/rustwide/target/debug/deps/libdashmap-bcd1485500682a75.rmeta --extern educe=/opt/rustwide/target/debug/deps/libeduce-4bd2bdc879befa01.so --extern either=/opt/rustwide/target/debug/deps/libeither-1571eeb37bcb2014.rmeta --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-ce000d4d7843726c.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-154257be2cdb5bdc.rmeta --extern lateinit=/opt/rustwide/target/debug/deps/liblateinit-8c126f8c7f01ecf6.rmeta --extern linked_hash_map=/opt/rustwide/target/debug/deps/liblinked_hash_map-967ac1d03a896dbf.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-5022bfb9325dfd1a.rmeta --extern rustls=/opt/rustwide/target/debug/deps/librustls-891614d2445168fa.rmeta --extern rustls_pemfile=/opt/rustwide/target/debug/deps/librustls_pemfile-5f1b2cb83f31f899.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-f1288174a5203fb3.rmeta --extern serde_bytes=/opt/rustwide/target/debug/deps/libserde_bytes-0fa6317cf53d0f1c.rmeta --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-4e42bf04beeb17f5.rmeta --extern singleton=/opt/rustwide/target/debug/deps/libsingleton-5a8ce17f855f59dd.so --extern time=/opt/rustwide/target/debug/deps/libtime-d6da8a47a1ba61cc.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-f1badea3266cd1a6.rmeta --extern tokio_rustls=/opt/rustwide/target/debug/deps/libtokio_rustls-b5f8f1a8af9bae3c.rmeta --extern tokio_tungstenite=/opt/rustwide/target/debug/deps/libtokio_tungstenite-176eabf75eea5a35.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-78e0afe8c1ae91c1.rmeta --extern tracing_error=/opt/rustwide/target/debug/deps/libtracing_error-9d5088d963c82a85.rmeta --extern tracing_subscriber=/opt/rustwide/target/debug/deps/libtracing_subscriber-792e094f95edeb3f.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-9649284ccf94892c.rmeta --extern yaml_rust=/opt/rustwide/target/debug/deps/libyaml_rust-411458cd4ac76b95.rmeta --cap-lints=warn --crate-version 0.2.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "0e2e07564b610e4052cb98fe82bc381da6a8cc54ba0eb1e067a6674fa48eb4be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e2e07564b610e4052cb98fe82bc381da6a8cc54ba0eb1e067a6674fa48eb4be", kill_on_drop: false }`
[INFO] [stdout] 0e2e07564b610e4052cb98fe82bc381da6a8cc54ba0eb1e067a6674fa48eb4be
[INFO] documenting Mesagisto/mesagisto-center against beta-2023-12-22 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMesagisto%2Fmesagisto-center" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Mesagisto/mesagisto-center on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/Mesagisto/mesagisto-center
[INFO] finished tweaking git repo https://github.com/Mesagisto/mesagisto-center
[INFO] tweaked toml for git repo https://github.com/Mesagisto/mesagisto-center written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Mesagisto/mesagisto-center already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54c6e9c1aaf66cde2f67287fd09e6355c279e52fca3cf890b3d9d29e984aee20
[INFO] running `Command { std: "docker" "start" "-a" "54c6e9c1aaf66cde2f67287fd09e6355c279e52fca3cf890b3d9d29e984aee20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54c6e9c1aaf66cde2f67287fd09e6355c279e52fca3cf890b3d9d29e984aee20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54c6e9c1aaf66cde2f67287fd09e6355c279e52fca3cf890b3d9d29e984aee20", kill_on_drop: false }`
[INFO] [stdout] 54c6e9c1aaf66cde2f67287fd09e6355c279e52fca3cf890b3d9d29e984aee20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03c250d313f719aa3dca38f0535f2698a5d33d0ae785b0dd7936e03c39c7487f
[INFO] running `Command { std: "docker" "start" "-a" "03c250d313f719aa3dca38f0535f2698a5d33d0ae785b0dd7936e03c39c7487f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.60
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]    Compiling serde v1.0.164
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling log v0.4.18
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling time-core v0.1.1
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]    Compiling time-macros v0.2.9
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling tokio v1.28.2
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking percent-encoding v2.3.0
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]     Checking form_urlencoded v1.2.0
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]     Checking cpufeatures v0.2.7
[INFO] [stderr]     Checking gimli v0.27.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling rustls v0.21.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking object v0.30.4
[INFO] [stderr]     Checking idna v0.4.0
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking data-encoding v2.4.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking ciborium-io v0.2.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking url v2.4.0
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking ciborium-ll v0.2.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking base64 v0.21.2
[INFO] [stderr]     Checking unsafe-libyaml v0.2.8
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking time v0.3.22
[INFO] [stderr]     Checking sha1 v0.10.5
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking dashmap v5.4.0
[INFO] [stderr]     Checking lateinit v0.1.0 (https://github.com/Itsusinn/lateinit-rs.git?branch=master#579ebbd1)
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking rustls-pemfile v1.0.2
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking tracing-subscriber v0.3.17
[INFO] [stderr]     Checking addr2line v0.19.0
[INFO] [stderr]    Compiling automatic-config v0.1.0 (https://github.com/Itsusinn/automatic-config-rs.git?branch=master#04ce6dea)
[INFO] [stderr]    Compiling singleton v0.1.0 (https://github.com/Itsusinn/singleton-rs.git?branch=master#bee321ce)
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking rustls-webpki v0.100.1
[INFO] [stderr]    Compiling serde_derive v1.0.164
[INFO] [stderr]    Compiling tracing-attributes v0.1.24
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling enum-ordinalize v3.1.13
[INFO] [stderr]    Compiling educe v0.4.22
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking color-spantrace v0.2.0
[INFO] [stderr]     Checking color-eyre v0.6.2
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking uuid v1.3.3
[INFO] [stderr]     Checking serde_yaml v0.9.21
[INFO] [stderr]     Checking ciborium v0.2.1
[INFO] [stderr]     Checking serde_bytes v0.11.9
[INFO] [stderr]     Checking arcstr v1.1.5
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking tungstenite v0.19.0
[INFO] [stderr]     Checking tokio-rustls v0.24.0
[INFO] [stderr]     Checking tokio-tungstenite v0.19.0
[INFO] [stderr]  Documenting mesagisto-center v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_chains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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 `mesagisto-center`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type bin --crate-name mesagisto_center src/main.rs -o /opt/rustwide/target/doc --cfg 'feature="color"' --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=3b920f6421325a59 -L dependency=/opt/rustwide/target/debug/deps --extern arcstr=/opt/rustwide/target/debug/deps/libarcstr-a3b84121c1e7784f.rmeta --extern automatic_config=/opt/rustwide/target/debug/deps/libautomatic_config-14c3343c02b4b52f.so --extern bytes=/opt/rustwide/target/debug/deps/libbytes-b6f53b7c7a18f194.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-ede0eb50af8d7faa.rmeta --extern ciborium=/opt/rustwide/target/debug/deps/libciborium-77b9be3b8c0a8b56.rmeta --extern color_eyre=/opt/rustwide/target/debug/deps/libcolor_eyre-210976cfbc2a7d1b.rmeta --extern colored=/opt/rustwide/target/debug/deps/libcolored-50fcdd76a68b4144.rmeta --extern dashmap=/opt/rustwide/target/debug/deps/libdashmap-da374969f1ccaf1f.rmeta --extern educe=/opt/rustwide/target/debug/deps/libeduce-2d5d8f4c14784e10.so --extern either=/opt/rustwide/target/debug/deps/libeither-6ab2bb9766899e6d.rmeta --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-3eb2c7b352ef495a.rmeta --extern hex=/opt/rustwide/target/debug/deps/libhex-5d39bbac87d797f4.rmeta --extern lateinit=/opt/rustwide/target/debug/deps/liblateinit-03b91cca42328f10.rmeta --extern linked_hash_map=/opt/rustwide/target/debug/deps/liblinked_hash_map-164335059823db75.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-69e0e9fac18d9775.rmeta --extern rustls=/opt/rustwide/target/debug/deps/librustls-691a0b16dbb83b96.rmeta --extern rustls_pemfile=/opt/rustwide/target/debug/deps/librustls_pemfile-bc9368a4d701dfff.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-4afe38bd804735b1.rmeta --extern serde_bytes=/opt/rustwide/target/debug/deps/libserde_bytes-0f37781c8b7dcaac.rmeta --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-398348e8830a603d.rmeta --extern singleton=/opt/rustwide/target/debug/deps/libsingleton-ace9939956247e57.so --extern time=/opt/rustwide/target/debug/deps/libtime-46885286c4387851.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-1e59b596d93c50bc.rmeta --extern tokio_rustls=/opt/rustwide/target/debug/deps/libtokio_rustls-cb5ce74787ea7952.rmeta --extern tokio_tungstenite=/opt/rustwide/target/debug/deps/libtokio_tungstenite-639dacb5209ac7df.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-7ae8c3e39c8508a5.rmeta --extern tracing_error=/opt/rustwide/target/debug/deps/libtracing_error-b0f86e3e6235aafc.rmeta --extern tracing_subscriber=/opt/rustwide/target/debug/deps/libtracing_subscriber-cb087c8f4e1f0fd6.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-4fd2178ebd9e3420.rmeta --extern yaml_rust=/opt/rustwide/target/debug/deps/libyaml_rust-a4620d32c7d6e377.rmeta --cap-lints=warn --crate-version 0.2.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "03c250d313f719aa3dca38f0535f2698a5d33d0ae785b0dd7936e03c39c7487f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03c250d313f719aa3dca38f0535f2698a5d33d0ae785b0dd7936e03c39c7487f", kill_on_drop: false }`
[INFO] [stdout] 03c250d313f719aa3dca38f0535f2698a5d33d0ae785b0dd7936e03c39c7487f
