[INFO] cloning repository https://github.com/tonyxty/minesweeper_bot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tonyxty/minesweeper_bot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftonyxty%2Fminesweeper_bot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftonyxty%2Fminesweeper_bot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f67e7110d5e20418ffb53c9f063a633a7932c685
[INFO] documenting tonyxty/minesweeper_bot against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftonyxty%2Fminesweeper_bot" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tonyxty/minesweeper_bot 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] started tweaking git repo https://github.com/tonyxty/minesweeper_bot
[INFO] finished tweaking git repo https://github.com/tonyxty/minesweeper_bot
[INFO] tweaked toml for git repo https://github.com/tonyxty/minesweeper_bot written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/tonyxty/minesweeper_bot 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]     Updating git repository `https://github.com/ayrat555/telegram-bot`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-socks5 v0.3.2
[INFO] [stderr]   Downloaded serde-value v0.5.3
[INFO] [stderr]   Downloaded hyper-socks2 v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5b38cdd5431e366ed712d799c8b8e0d66ea92da36b977b8d44c6351d22564f87
[INFO] running `Command { std: "docker" "start" "-a" "5b38cdd5431e366ed712d799c8b8e0d66ea92da36b977b8d44c6351d22564f87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b38cdd5431e366ed712d799c8b8e0d66ea92da36b977b8d44c6351d22564f87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b38cdd5431e366ed712d799c8b8e0d66ea92da36b977b8d44c6351d22564f87", kill_on_drop: false }`
[INFO] [stdout] 5b38cdd5431e366ed712d799c8b8e0d66ea92da36b977b8d44c6351d22564f87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] dc3511792167f3bdcabf7c740708e9824db858feca2f18ead2136763dcfb0c86
[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" "dc3511792167f3bdcabf7c740708e9824db858feca2f18ead2136763dcfb0c86", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking native-tls v0.2.7
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]     Checking telegram-bot-raw v0.8.0 (https://github.com/ayrat555/telegram-bot?branch=ayrat555/api-fixes-10#64c9a2e6)
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking multipart v0.16.1
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking async-socks5 v0.3.2
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking hyper-socks2 v0.5.0
[INFO] [stderr]     Checking telegram-bot v0.8.0 (https://github.com/ayrat555/telegram-bot?branch=ayrat555/api-fixes-10#64c9a2e6)
[INFO] [stderr]  Documenting minesweeper_bot v0.1.0 (/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(box_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(bool_to_option)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(option_result_contains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 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 `minesweeper_bot`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name minesweeper_bot src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern futures=/opt/rustwide/target/debug/deps/libfutures-21b29412544db910.rmeta --extern hyper=/opt/rustwide/target/debug/deps/libhyper-a477893035f27864.rmeta --extern hyper_socks2=/opt/rustwide/target/debug/deps/libhyper_socks2-e1a12f7dcedcfbf9.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-0219993a3d642127.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-0bd24da4c87f6077.rmeta --extern telegram_bot=/opt/rustwide/target/debug/deps/libtelegram_bot-f61984c26a9ac9fd.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-134c5f6268749605.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-693a19bf1f038a27.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "dc3511792167f3bdcabf7c740708e9824db858feca2f18ead2136763dcfb0c86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc3511792167f3bdcabf7c740708e9824db858feca2f18ead2136763dcfb0c86", kill_on_drop: false }`
[INFO] [stdout] dc3511792167f3bdcabf7c740708e9824db858feca2f18ead2136763dcfb0c86
