[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 beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frtsmarty%2Fdiscord-bots" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rtsmarty/discord-bots on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", 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-4/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" "+beta-2020-10-09" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03fd19f8f0b2ea5a66ed7417f9b4284d7b580576a5058818f307f1437f7c9a9c
[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" "03fd19f8f0b2ea5a66ed7417f9b4284d7b580576a5058818f307f1437f7c9a9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03fd19f8f0b2ea5a66ed7417f9b4284d7b580576a5058818f307f1437f7c9a9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03fd19f8f0b2ea5a66ed7417f9b4284d7b580576a5058818f307f1437f7c9a9c", kill_on_drop: false }`
[INFO] [stdout] 03fd19f8f0b2ea5a66ed7417f9b4284d7b580576a5058818f307f1437f7c9a9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8123e77dcd7890c94c7f9af42cf8305e3058f4bd44a92eb1070b42e6a40986f9
[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" "8123e77dcd7890c94c7f9af42cf8305e3058f4bd44a92eb1070b42e6a40986f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking serde_json v1.0.52
[INFO] [stderr]     Checking native-tls v0.2.4
[INFO] [stderr]     Checking rust-crypto v0.2.36
[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]     Checking tokio v0.2.20
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking thiserror v1.0.16
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]     Checking pin-project v0.4.9
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.0
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking structopt v0.3.14
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking h2 v0.2.4
[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 beta 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 beta 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/libbase64-806a8d180b40d22d.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-e1a9b9121eac1683.rmeta --extern bytes=/opt/rustwide/target/debug/deps/libbytes-698f4871cab58c10.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-108b220f24220b85.rmeta --extern http=/opt/rustwide/target/debug/deps/libhttp-672e70c1a670f984.rmeta --extern hyper=/opt/rustwide/target/debug/deps/libhyper-89407525d1c7b05f.rmeta --extern native_tls=/opt/rustwide/target/debug/deps/libnative_tls-aa8fc5b3ad74d380.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-289b2a171f76f480.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-376bb620e989ee0a.rmeta --extern crypto=/opt/rustwide/target/debug/deps/libcrypto-fb4b4bb610192578.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-6319294348dc1d4f.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-37c14ce59cf12503.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-a612d78d019ab084.rmeta --extern smallvec=/opt/rustwide/target/debug/deps/libsmallvec-cffcbd4b322ec378.rmeta --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-caf63107219a35bd.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-165216beb8b6c6ce.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-9b723359d231d44d.rmeta --extern tokio_tls=/opt/rustwide/target/debug/deps/libtokio_tls-9e1124e2a81b63b4.rmeta --extern unicase=/opt/rustwide/target/debug/deps/libunicase-6ab4d846da5b6c7d.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 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" "8123e77dcd7890c94c7f9af42cf8305e3058f4bd44a92eb1070b42e6a40986f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8123e77dcd7890c94c7f9af42cf8305e3058f4bd44a92eb1070b42e6a40986f9", kill_on_drop: false }`
[INFO] [stdout] 8123e77dcd7890c94c7f9af42cf8305e3058f4bd44a92eb1070b42e6a40986f9
