[INFO] cloning repository https://github.com/ryanhossain9797/terminal_alpha_beta
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ryanhossain9797/terminal_alpha_beta" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanhossain9797%2Fterminal_alpha_beta", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanhossain9797%2Fterminal_alpha_beta'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04eef2484094237dad4928799408f3cf32ee60d4
[INFO] documenting ryanhossain9797/terminal_alpha_beta against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryanhossain9797%2Fterminal_alpha_beta" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryanhossain9797/terminal_alpha_beta on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ryanhossain9797/terminal_alpha_beta
[INFO] finished tweaking git repo https://github.com/ryanhossain9797/terminal_alpha_beta
[INFO] tweaked toml for git repo https://github.com/ryanhossain9797/terminal_alpha_beta written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ryanhossain9797/terminal_alpha_beta already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f6d2cf5189d1bd0d0a99b82749bc35ccbc3b73fa69ae98d871a1ddb70b8730f
[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" "5f6d2cf5189d1bd0d0a99b82749bc35ccbc3b73fa69ae98d871a1ddb70b8730f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f6d2cf5189d1bd0d0a99b82749bc35ccbc3b73fa69ae98d871a1ddb70b8730f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f6d2cf5189d1bd0d0a99b82749bc35ccbc3b73fa69ae98d871a1ddb70b8730f", kill_on_drop: false }`
[INFO] [stdout] 5f6d2cf5189d1bd0d0a99b82749bc35ccbc3b73fa69ae98d871a1ddb70b8730f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e2f34dfdd06cbe71d1e975ff19312ad29112fc081975a1d3e84bb828c826a05
[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" "6e2f34dfdd06cbe71d1e975ff19312ad29112fc081975a1d3e84bb828c826a05", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling openssl v0.10.34
[INFO] [stderr]    Compiling signal-hook v0.3.8
[INFO] [stderr]    Compiling serenity v0.10.5
[INFO] [stderr]     Checking typemap_rev v0.1.5
[INFO] [stderr]    Compiling terminal_alpha_beta v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking boolinator v2.4.0
[INFO] [stderr]    Compiling openssl-src v111.15.0+1.1.1k
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling tokio v0.3.7
[INFO] [stderr]    Compiling backtrace v0.3.58
[INFO] [stderr]    Compiling im-rc v15.0.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking spinning_top v0.2.3
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]     Checking regex v1.5.3
[INFO] [stderr]     Checking sized-chunks v0.6.5
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking md-5 v0.8.0
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]    Compiling openssl-sys v0.9.62
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking ring v0.16.20
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking resolv-conf v0.7.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking dashmap v4.0.2
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking nanorand v0.5.2
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rayon v0.7.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking closestmatch v0.1.2
[INFO] [stderr]     Checking webpki-roots v0.21.1
[INFO] [stderr]     Checking webpki-roots v0.20.0
[INFO] [stderr]     Checking webpki-roots v0.18.0
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling selectors v0.22.0
[INFO] [stderr]    Compiling markup5ever v0.10.1
[INFO] [stderr]    Compiling darling_core v0.12.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling derive_utils v0.11.2
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling cssparser v0.27.2
[INFO] [stderr]    Compiling cssparser-macros v0.6.0
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling derive_more v0.99.13
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling typed-builder v0.4.1
[INFO] [stderr]    Compiling async-recursion v0.3.2
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling serde-query-derive v0.1.3
[INFO] [stderr]    Compiling iter-enum v1.0.1
[INFO] [stderr]    Compiling darling_macro v0.12.4
[INFO] [stderr]     Checking value-bag v1.0.0-alpha.6
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking flume v0.10.5
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking rustls v0.19.1
[INFO] [stderr]     Checking polling v2.0.3
[INFO] [stderr]     Checking rustls v0.17.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking tungstenite v0.11.1
[INFO] [stderr]     Checking os_info v3.0.4
[INFO] [stderr]     Checking multipart v0.17.1
[INFO] [stderr]     Checking sled v0.34.6
[INFO] [stderr]    Compiling darling v0.12.4
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking async-io v1.4.1
[INFO] [stderr]    Compiling serde_with_macros v1.4.1
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking async-process v1.1.0
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking trust-dns-proto v0.19.7
[INFO] [stderr]     Checking tokio-rustls v0.13.1
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking string_cache v0.8.1
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking serde-value v0.7.0
[INFO] [stderr]     Checking sqlparser v0.8.0
[INFO] [stderr]     Checking serde_with v1.8.1
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking serde-query v0.1.3
[INFO] [stderr]     Checking tokio-util v0.6.6
[INFO] [stderr]     Checking tokio-rustls v0.22.0
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]     Checking async-tungstenite v0.11.0
[INFO] [stderr]     Checking xml5ever v0.16.1
[INFO] [stderr]     Checking bson v1.2.2
[INFO] [stderr]     Checking telegram-bot-raw v0.9.0 (https://github.com/telegram-rs/telegram-bot#07a9f9a1)
[INFO] [stderr]     Checking yeelib_rs v0.1.1
[INFO] [stderr]     Checking h2 v0.3.3
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking trust-dns-resolver v0.19.7
[INFO] [stderr]     Checking scraper v0.12.0
[INFO] [stderr]     Checking markup5ever_rcdom v0.1.0
[INFO] [stderr]     Checking select v0.5.0
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking hyper v0.14.7
[INFO] [stderr]     Checking mongodb v1.2.1
[INFO] [stderr]     Checking gluesql v0.5.1
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.10
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking hyper-rustls v0.22.1
[INFO] [stderr]     Checking reqwest v0.11.3
[INFO] [stderr]     Checking telegram-bot v0.9.0 (https://github.com/telegram-rs/telegram-bot#07a9f9a1)
[INFO] [stderr]     Checking search_with_google v0.5.0
[INFO] [stderr]  Documenting terminal_alpha_beta v0.4.0 (/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(async_closure)]
[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: Compilation failed, aborting rustdoc
[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 `terminal_alpha_beta`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name terminal_alpha_beta 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 anyhow=/opt/rustwide/target/debug/deps/libanyhow-ed234740686b5bee.rmeta --extern async_std=/opt/rustwide/target/debug/deps/libasync_std-acdc7895c543c8da.rmeta --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-c8a47c2e14872b29.so --extern closestmatch=/opt/rustwide/target/debug/deps/libclosestmatch-e43dc7429839f012.rmeta --extern colored=/opt/rustwide/target/debug/deps/libcolored-bf5557373417786e.rmeta --extern dashmap=/opt/rustwide/target/debug/deps/libdashmap-f15d2ef9c46f0d43.rmeta --extern flume=/opt/rustwide/target/debug/deps/libflume-217979987e4f8e1a.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-8e651d9c1fd16b86.rmeta --extern gluesql=/opt/rustwide/target/debug/deps/libgluesql-a0c93d2255e2b1c9.rmeta --extern mongodb=/opt/rustwide/target/debug/deps/libmongodb-773b8c05a5c9aaa6.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-2b26e8ca876f44b4.rmeta --extern openssl=/opt/rustwide/target/debug/deps/libopenssl-c32909ea9731d380.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-d1de2b8be8101e31.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-e5c037ba37f85b0a.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-8125a8dbfadf3971.rmeta --extern search_with_google=/opt/rustwide/target/debug/deps/libsearch_with_google-af1a0a0248d1a226.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-a6ae60f36af22b7c.rmeta --extern serde_query=/opt/rustwide/target/debug/deps/libserde_query-3020bc8b3e4af086.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-0db9084ec9917698.rmeta --extern serenity=/opt/rustwide/target/debug/deps/libserenity-b38a0ddfa484fe80.rmeta --extern telegram_bot=/opt/rustwide/target/debug/deps/libtelegram_bot-5058a754083b7e79.rmeta --extern yeelib_rs=/opt/rustwide/target/debug/deps/libyeelib_rs-eb5a46c03b158f7d.rmeta --cap-lints=warn --crate-version 0.4.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "6e2f34dfdd06cbe71d1e975ff19312ad29112fc081975a1d3e84bb828c826a05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e2f34dfdd06cbe71d1e975ff19312ad29112fc081975a1d3e84bb828c826a05", kill_on_drop: false }`
[INFO] [stdout] 6e2f34dfdd06cbe71d1e975ff19312ad29112fc081975a1d3e84bb828c826a05
