[INFO] cloning repository https://github.com/insomnimus/cada
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/insomnimus/cada" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finsomnimus%2Fcada", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finsomnimus%2Fcada'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6744539e51dc226b917cecf4fd3dd45e8dbfb476
[INFO] documenting insomnimus/cada against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finsomnimus%2Fcada" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/insomnimus/cada on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/insomnimus/cada
[INFO] finished tweaking git repo https://github.com/insomnimus/cada
[INFO] tweaked toml for git repo https://github.com/insomnimus/cada written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/insomnimus/cada already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rdev v0.5.1
[INFO] [stderr]   Downloaded enum-map v1.0.0
[INFO] [stderr]   Downloaded core-graphics v0.21.0
[INFO] [stderr]   Downloaded enum-map-derive v0.5.0
[INFO] [stderr]   Downloaded cocoa v0.22.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "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] 350e93896d05d045f05b8cf4a50d749500184171531f9c7bff48623636545729
[INFO] running `Command { std: "docker" "start" "-a" "350e93896d05d045f05b8cf4a50d749500184171531f9c7bff48623636545729", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "350e93896d05d045f05b8cf4a50d749500184171531f9c7bff48623636545729", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "350e93896d05d045f05b8cf4a50d749500184171531f9c7bff48623636545729", kill_on_drop: false }`
[INFO] [stdout] 350e93896d05d045f05b8cf4a50d749500184171531f9c7bff48623636545729
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] d98a7d4d6732f509292e8c3e1b7b076455483994f336f1def488262d11d12c35
[INFO] running `Command { std: "docker" "start" "-a" "d98a7d4d6732f509292e8c3e1b7b076455483994f336f1def488262d11d12c35", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling cpal v0.13.3
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rdev v0.5.1
[INFO] [stderr]     Checking alsa v0.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling enum-map-derive v0.5.0
[INFO] [stderr]     Checking enum-map v1.0.0
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]  Documenting cada 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:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(atomic_mut_ptr)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `cada`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name cada src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=605d2468005c6b64 -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-46a140f6ae8ebcb6.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-7af16dd76610ff1d.rmeta --extern cpal=/opt/rustwide/target/debug/deps/libcpal-ac378acf0260374e.rmeta --extern enum_map=/opt/rustwide/target/debug/deps/libenum_map-e6ea15e73b9510d6.rmeta --extern rdev=/opt/rustwide/target/debug/deps/librdev-da5a64d286244ebc.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "d98a7d4d6732f509292e8c3e1b7b076455483994f336f1def488262d11d12c35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d98a7d4d6732f509292e8c3e1b7b076455483994f336f1def488262d11d12c35", kill_on_drop: false }`
[INFO] [stdout] d98a7d4d6732f509292e8c3e1b7b076455483994f336f1def488262d11d12c35