[INFO] cloning repository https://github.com/petrochenkov/classifui
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/petrochenkov/classifui" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpetrochenkov%2Fclassifui", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpetrochenkov%2Fclassifui'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a949be6423a9d5ec1f99dead51cfba56ebb4de1
[INFO] documenting petrochenkov/classifui 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%2Fpetrochenkov%2Fclassifui" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/petrochenkov/classifui 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] removed /workspace/builds/worker-2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/petrochenkov/classifui
[INFO] finished tweaking git repo https://github.com/petrochenkov/classifui
[INFO] tweaked toml for git repo https://github.com/petrochenkov/classifui written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/petrochenkov/classifui 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 os_str_bytes v6.0.1
[INFO] [stderr]   Downloaded syn v1.0.94
[INFO] [stderr]   Downloaded liblinear v1.0.0
[INFO] [stderr]   Downloaded parsnip v0.3.0
[INFO] [stderr]   Downloaded object v0.28.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 68cb480b0ea7bf6c2fd44b96f7077573f029623a6129cdd9694dcbe9867b70e9
[INFO] running `Command { std: "docker" "start" "-a" "68cb480b0ea7bf6c2fd44b96f7077573f029623a6129cdd9694dcbe9867b70e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68cb480b0ea7bf6c2fd44b96f7077573f029623a6129cdd9694dcbe9867b70e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68cb480b0ea7bf6c2fd44b96f7077573f029623a6129cdd9694dcbe9867b70e9", kill_on_drop: false }`
[INFO] [stdout] 68cb480b0ea7bf6c2fd44b96f7077573f029623a6129cdd9694dcbe9867b70e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 66730271a440555c1f32e4ac17a928ad40a5c0d212af381c40c28e15ae6aec70
[INFO] running `Command { std: "docker" "start" "-a" "66730271a440555c1f32e4ac17a928ad40a5c0d212af381c40c28e15ae6aec70", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.38
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.94
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]     Checking os_str_bytes v6.0.1
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking parsnip v0.3.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking miniz_oxide v0.5.1
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking clap_lex v0.2.0
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking object v0.28.4
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling backtrace v0.3.65
[INFO] [stderr]    Compiling liblinear v1.0.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v3.1.18
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]  Documenting classifui 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(array_windows)]
[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 `classifui`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type bin --crate-name classifui src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=1e3041c035e41ca5 -L dependency=/opt/rustwide/target/debug/deps --extern clap=/opt/rustwide/target/debug/deps/libclap-20af18234f4ba7c2.rmeta --extern fxhash=/opt/rustwide/target/debug/deps/libfxhash-0d7fc89158955c8d.rmeta --extern liblinear=/opt/rustwide/target/debug/deps/libliblinear-0b727aaa2a921e30.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-6f05a460e7f44d13.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-cd6be4182a4574f3.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-252f48abfd839dff.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-e0ba9bd8e9fe9cb5.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-aa60abb9fe6cfa5b.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "66730271a440555c1f32e4ac17a928ad40a5c0d212af381c40c28e15ae6aec70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66730271a440555c1f32e4ac17a928ad40a5c0d212af381c40c28e15ae6aec70", kill_on_drop: false }`
[INFO] [stdout] 66730271a440555c1f32e4ac17a928ad40a5c0d212af381c40c28e15ae6aec70