[INFO] cloning repository https://github.com/beyarkay/attractors
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/beyarkay/attractors" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeyarkay%2Fattractors", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbeyarkay%2Fattractors'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 26cf0d1c7f92efdb9792baf1c8489943ca0b6d15
[INFO] documenting beyarkay/attractors 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%2Fbeyarkay%2Fattractors" "/workspace/builds/worker-23/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-23/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/beyarkay/attractors 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/beyarkay/attractors
[INFO] finished tweaking git repo https://github.com/beyarkay/attractors
[INFO] tweaked toml for git repo https://github.com/beyarkay/attractors written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] crate git repo https://github.com/beyarkay/attractors 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 wayland-sys v0.29.4
[INFO] [stderr]   Downloaded pkg-config v0.3.24
[INFO] [stderr]   Downloaded x11-dl v2.19.1
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.30
[INFO] [stderr]   Downloaded xcursor v0.3.4
[INFO] [stderr]   Downloaded wayland-client v0.29.4
[INFO] [stderr]   Downloaded fastrand v1.7.0
[INFO] [stderr]   Downloaded futures-macro v0.3.21
[INFO] [stderr]   Downloaded tempfile v3.3.0
[INFO] [stderr]   Downloaded futures-executor v0.3.21
[INFO] [stderr]   Downloaded futures-channel v0.3.21
[INFO] [stderr]   Downloaded pin-project-lite v0.2.9
[INFO] [stderr]   Downloaded wayland-commons v0.29.4
[INFO] [stderr]   Downloaded dlib v0.5.0
[INFO] [stderr]   Downloaded unidiff v0.3.3
[INFO] [stderr]   Downloaded raw-window-handle v0.4.2
[INFO] [stderr]   Downloaded image v0.24.1
[INFO] [stderr]   Downloaded wayland-protocols v0.29.4
[INFO] [stderr]   Downloaded adler32 v1.2.0
[INFO] [stderr]   Downloaded png v0.17.5
[INFO] [stderr]   Downloaded rgb v0.8.32
[INFO] [stderr]   Downloaded raw-window-handle v0.3.4
[INFO] [stderr]   Downloaded version-compare v0.0.10
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.80
[INFO] [stderr]   Downloaded serde_derive v1.0.136
[INFO] [stderr]   Downloaded cty v0.2.2
[INFO] [stderr]   Downloaded js-sys v0.3.57
[INFO] [stderr]   Downloaded tar v0.4.38
[INFO] [stderr]   Downloaded wayland-cursor v0.29.4
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.80
[INFO] [stderr]   Downloaded futures-io v0.3.21
[INFO] [stderr]   Downloaded color_quant v1.1.0
[INFO] [stderr]   Downloaded filetime v0.2.15
[INFO] [stderr]   Downloaded nix v0.22.3
[INFO] [stderr]   Downloaded sdl2 v0.34.5
[INFO] [stderr]   Downloaded futures v0.3.21
[INFO] [stderr]   Downloaded deflate v1.0.0
[INFO] [stderr]   Downloaded wayland-scanner v0.29.4
[INFO] [stderr]   Downloaded bytemuck v1.9.0
[INFO] [stderr]   Downloaded sdl2-sys v0.34.5
[INFO] [stderr]   Downloaded minifb v0.23.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.80
[INFO] [stderr]   Downloaded encoding_rs v0.8.30
[INFO] [stderr]   Downloaded orbclient v0.3.31
[INFO] [stderr]   Downloaded xml-rs v0.8.4
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.80
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.80
[INFO] [stderr]   Downloaded libc v0.2.121
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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] [stdout] 04763f2c93a512d892889fb943fc913e91900c7cb298109df574f3fcfef1f19a
[INFO] running `Command { std: "docker" "start" "-a" "04763f2c93a512d892889fb943fc913e91900c7cb298109df574f3fcfef1f19a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04763f2c93a512d892889fb943fc913e91900c7cb298109df574f3fcfef1f19a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04763f2c93a512d892889fb943fc913e91900c7cb298109df574f3fcfef1f19a", kill_on_drop: false }`
[INFO] [stdout] 04763f2c93a512d892889fb943fc913e91900c7cb298109df574f3fcfef1f19a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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] [stdout] 84c14606e039c789a9859a465571284f585564595b6fcb379afe08883e50e746
[INFO] running `Command { std: "docker" "start" "-a" "84c14606e039c789a9859a465571284f585564595b6fcb379afe08883e50e746", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]    Compiling crc32fast v1.3.0
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]     Checking bytemuck v1.9.0
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking libloading v0.7.2
[INFO] [stderr]     Checking deflate v1.0.0
[INFO] [stderr]     Checking miniz_oxide v0.5.1
[INFO] [stderr]     Checking raw-window-handle v0.4.2
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]     Checking rgb v0.8.32
[INFO] [stderr]    Compiling wayland-sys v0.29.4
[INFO] [stderr]    Compiling x11-dl v2.19.1
[INFO] [stderr]     Checking png v0.17.5
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling minifb v0.23.0
[INFO] [stderr]    Compiling wayland-scanner v0.29.4
[INFO] [stderr]     Checking nix v0.22.3
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling wayland-client v0.29.4
[INFO] [stderr]    Compiling wayland-protocols v0.29.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking image v0.24.1
[INFO] [stderr]     Checking xcursor v0.3.4
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking wayland-commons v0.29.4
[INFO] [stderr]     Checking wayland-cursor v0.29.4
[INFO] [stderr]  Documenting attractors v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[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 `attractors`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name attractors src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=b93f80087c68c247 -L dependency=/opt/rustwide/target/debug/deps --extern image=/opt/rustwide/target/debug/deps/libimage-25b3f4d6b6dce835.rmeta --extern minifb=/opt/rustwide/target/debug/deps/libminifb-40fb3abb8f8fbedb.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-32211806134729f7.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "84c14606e039c789a9859a465571284f585564595b6fcb379afe08883e50e746", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84c14606e039c789a9859a465571284f585564595b6fcb379afe08883e50e746", kill_on_drop: false }`
[INFO] [stdout] 84c14606e039c789a9859a465571284f585564595b6fcb379afe08883e50e746