[INFO] cloning repository https://github.com/akiszka/signal-bot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/akiszka/signal-bot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakiszka%2Fsignal-bot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakiszka%2Fsignal-bot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 449d2982ca2b897addfaea5ce545666883f19e6d
[INFO] documenting akiszka/signal-bot against 1.69.0 for beta-1.70-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakiszka%2Fsignal-bot" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/akiszka/signal-bot on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/akiszka/signal-bot
[INFO] finished tweaking git repo https://github.com/akiszka/signal-bot
[INFO] tweaked toml for git repo https://github.com/akiszka/signal-bot written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/akiszka/signal-bot 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rmp v0.8.10
[INFO] [stderr]   Downloaded uuid-macro-internal v1.0.0-alpha.1
[INFO] [stderr]   Downloaded uuid v1.0.0-alpha.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35556cf8a4d132bd306267f35bbc92ed92caa3ab415dd736dd14469de119e31c
[INFO] running `Command { std: "docker" "start" "-a" "35556cf8a4d132bd306267f35bbc92ed92caa3ab415dd736dd14469de119e31c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35556cf8a4d132bd306267f35bbc92ed92caa3ab415dd736dd14469de119e31c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35556cf8a4d132bd306267f35bbc92ed92caa3ab415dd736dd14469de119e31c", kill_on_drop: false }`
[INFO] [stdout] 35556cf8a4d132bd306267f35bbc92ed92caa3ab415dd736dd14469de119e31c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32001dcb3a5e6adf427afd6544297a87d8d0f992e4c0a755f0991bb274fe3c28
[INFO] running `Command { std: "docker" "start" "-a" "32001dcb3a5e6adf427afd6544297a87d8d0f992e4c0a755f0991bb274fe3c28", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.9.1
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling httparse v1.6.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling const_fn v0.4.9
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling cookie v0.15.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ref-cast v1.0.6
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling tokio v1.16.1
[INFO] [stderr]    Compiling tracing-core v0.1.22
[INFO] [stderr]     Checking http v0.2.6
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling tracing v0.1.30
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling uncased v0.9.6
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling http-body v0.4.4
[INFO] [stderr]    Compiling devise_core v0.3.1
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling encoding_rs v0.8.30
[INFO] [stderr]     Checking inlinable_string v0.1.15
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling httpdate v1.0.2
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[INFO] [stderr]    Compiling tokio-util v0.6.9
[INFO] [stderr]    Compiling stable-pattern v0.1.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling atomic v0.5.1
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling figment v0.10.6
[INFO] [stderr]    Compiling multer v2.0.2
[INFO] [stderr]    Compiling h2 v0.3.11
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[INFO] [stderr]    Compiling serde_json v1.0.79
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[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling rocket v0.5.0-rc.1
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling pear_codegen v0.2.3
[INFO] [stderr]    Compiling ref-cast-impl v1.0.6
[INFO] [stderr]    Compiling time-macros v0.1.1
[INFO] [stderr]    Compiling pear v0.2.3
[INFO] [stderr]    Compiling devise_codegen v0.3.1
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]    Compiling hyper v0.14.17
[INFO] [stderr]     Checking num_threads v0.1.3
[INFO] [stderr]    Compiling time-macros v0.2.3
[INFO] [stderr]     Checking spin v0.9.2
[INFO] [stderr]    Compiling devise v0.3.1
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking async-stream v0.3.2
[INFO] [stderr]    Compiling uuid-macro-internal v1.0.0-alpha.1
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking checked_int_cast v1.0.0
[INFO] [stderr]     Checking binascii v0.1.4
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking tokio-stream v0.1.8
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking uuid v1.0.0-alpha.1
[INFO] [stderr]     Checking time v0.3.7
[INFO] [stderr]     Checking qrcode v0.12.0
[INFO] [stderr]     Checking simple_logger v2.1.0
[INFO] [stderr]    Compiling rocket_http v0.5.0-rc.1
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking ubyte v0.10.1
[INFO] [stderr]     Checking rmp-serde v0.15.5
[INFO] [stderr]    Compiling rocket_codegen v0.5.0-rc.1
[INFO] [stderr]  Documenting bot v0.1.0 (/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(bool_to_option)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(never_type)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(box_into_inner)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `bot`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name bot src/main.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=199f57beac1d3aa7 -L dependency=/opt/rustwide/target/debug/deps --extern nix=/opt/rustwide/target/debug/deps/libnix-6ef3eb4d55f3db13.rmeta --extern qrcode=/opt/rustwide/target/debug/deps/libqrcode-5d1a99c714fc001e.rmeta --extern rocket=/opt/rustwide/target/debug/deps/librocket-f5af73b73a04215b.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-d64fa76b6a89c5ec.rmeta --extern simple_logger=/opt/rustwide/target/debug/deps/libsimple_logger-2583cf6414db28f3.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-2ce6dd2381dab717.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-6f965a22225b7ebb.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "32001dcb3a5e6adf427afd6544297a87d8d0f992e4c0a755f0991bb274fe3c28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32001dcb3a5e6adf427afd6544297a87d8d0f992e4c0a755f0991bb274fe3c28", kill_on_drop: false }`
[INFO] [stdout] 32001dcb3a5e6adf427afd6544297a87d8d0f992e4c0a755f0991bb274fe3c28
