[INFO] cloning repository https://github.com/rtsmarty/discord-bots
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rtsmarty/discord-bots" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frtsmarty%2Fdiscord-bots", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frtsmarty%2Fdiscord-bots'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c64e3f8b14ca0e505230fd4b03ee5ec0a09f27d4
[INFO] documenting rtsmarty/discord-bots 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%2Frtsmarty%2Fdiscord-bots" "/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/rtsmarty/discord-bots 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/rtsmarty/discord-bots
[INFO] finished tweaking git repo https://github.com/rtsmarty/discord-bots
[INFO] tweaked toml for git repo https://github.com/rtsmarty/discord-bots written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/rtsmarty/discord-bots 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] [stderr]     Blocking waiting for file lock on package cache
[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" "+1.54.0" "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] c972174a23c057750c514ddbf8189e06790ce3e90af5387c5dcf524b7ea56dcd
[INFO] running `Command { std: "docker" "start" "-a" "c972174a23c057750c514ddbf8189e06790ce3e90af5387c5dcf524b7ea56dcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c972174a23c057750c514ddbf8189e06790ce3e90af5387c5dcf524b7ea56dcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c972174a23c057750c514ddbf8189e06790ce3e90af5387c5dcf524b7ea56dcd", kill_on_drop: false }`
[INFO] [stdout] c972174a23c057750c514ddbf8189e06790ce3e90af5387c5dcf524b7ea56dcd
[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" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c615b34ba01ed646b1cc98953171f1d1324744c57fb8bb6f67c77a869c8fb7a2
[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" "c615b34ba01ed646b1cc98953171f1d1324744c57fb8bb6f67c77a869c8fb7a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling openssl-sys v0.9.55
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking serde_json v1.0.52
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling pin-project-internal v0.4.9
[INFO] [stderr]    Compiling thiserror-impl v1.0.16
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]     Checking tokio v0.2.20
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking thiserror v1.0.16
[INFO] [stderr]     Checking pin-project v0.4.9
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.2.4
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking hyper v0.13.5
[INFO] [stderr]     Checking discord-bots v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting discord-bots 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:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(hash_set_entry, maybe_uninit_slice_assume_init, try_blocks)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(hash_set_entry, maybe_uninit_slice_assume_init, try_blocks)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 `discord-bots`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name discord_bots src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern base64=/opt/rustwide/target/debug/deps/libbase64-7fe6f05bd327ce9b.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-c759f8d07719039e.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-991d12bab4fcd132.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-ee61fe0c05b9892e.rmeta --extern http=/opt/rustwide/target/debug/deps/libhttp-ae5b6320eb2a6b58.rmeta --extern hyper=/opt/rustwide/target/debug/deps/libhyper-bf91e7d0d73b8076.rmeta --extern native_tls=/opt/rustwide/target/debug/deps/libnative_tls-858e0a40b7881134.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-6b989cd70292fffc.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-14a744e2bdc1a954.rmeta --extern crypto=/opt/rustwide/target/debug/deps/libcrypto-ae582ff7f7e9c41d.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-72970d1c40f92d9b.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-552674a6e3f507b0.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-30358be9a8ac450a.rmeta --extern smallvec=/opt/rustwide/target/debug/deps/libsmallvec-aee534673726e021.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-e8ea88774fe7bcd9.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-7bd1f7d70f30851c.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-d360f31c8613572c.rmeta --extern tokio_tls=/opt/rustwide/target/debug/deps/libtokio_tls-b27de339c88d1daa.rmeta --extern unicase=/opt/rustwide/target/debug/deps/libunicase-10623c9dd882f367.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: no function or associated item named `slice_get_mut` found for union `MaybeUninit` in the current scope
[INFO] [stdout]   --> src/ws/message.rs:73:55
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 let real_buf = std::mem::MaybeUninit::slice_get_mut(buf);
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^ function or associated item not found in `MaybeUninit<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c615b34ba01ed646b1cc98953171f1d1324744c57fb8bb6f67c77a869c8fb7a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c615b34ba01ed646b1cc98953171f1d1324744c57fb8bb6f67c77a869c8fb7a2", kill_on_drop: false }`
[INFO] [stdout] c615b34ba01ed646b1cc98953171f1d1324744c57fb8bb6f67c77a869c8fb7a2
