[INFO] cloning repository https://github.com/Ricky12Awesome/sysusage
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ricky12Awesome/sysusage" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRicky12Awesome%2Fsysusage", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRicky12Awesome%2Fsysusage'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de08784a59c739ee29ace44ed26a1386ab577473
[INFO] documenting Ricky12Awesome/sysusage 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%2FRicky12Awesome%2Fsysusage" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ricky12Awesome/sysusage 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/Ricky12Awesome/sysusage
[INFO] finished tweaking git repo https://github.com/Ricky12Awesome/sysusage
[INFO] tweaked toml for git repo https://github.com/Ricky12Awesome/sysusage written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Ricky12Awesome/sysusage 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap_derive v3.0.0-beta.5
[INFO] [stderr]   Downloaded proc-macro2 v1.0.30
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.5
[INFO] [stderr]   Downloaded syn v1.0.80
[INFO] [stderr]   Downloaded sysinfo v0.20.4
[INFO] [stderr]   Downloaded quote v1.0.10
[INFO] [stderr]   Downloaded crossbeam-deque v0.8.1
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.1
[INFO] [stderr]   Downloaded once_cell v1.8.0
[INFO] [stderr]   Downloaded indexmap v1.7.0
[INFO] [stderr]   Downloaded rayon v1.5.1
[INFO] [stderr]   Downloaded pretty_env_logger v0.4.0
[INFO] [stderr]   Downloaded memoffset v0.6.4
[INFO] [stderr]   Downloaded clap v3.0.0-beta.5
[INFO] [stderr]   Downloaded os_str_bytes v4.2.0
[INFO] [stderr]   Downloaded textwrap v0.14.2
[INFO] [stderr]   Downloaded rayon-core v1.9.1
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 3ed2fe03176510a3cf091b0ec3a16b93bbb32044439ba46ee817dd0c14f5d698
[INFO] running `Command { std: "docker" "start" "-a" "3ed2fe03176510a3cf091b0ec3a16b93bbb32044439ba46ee817dd0c14f5d698", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ed2fe03176510a3cf091b0ec3a16b93bbb32044439ba46ee817dd0c14f5d698", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ed2fe03176510a3cf091b0ec3a16b93bbb32044439ba46ee817dd0c14f5d698", kill_on_drop: false }`
[INFO] [stdout] 3ed2fe03176510a3cf091b0ec3a16b93bbb32044439ba46ee817dd0c14f5d698
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] d0d9b1880765b41bbc104f940abafadf55ad92048a4f352eb024dac7323025a4
[INFO] running `Command { std: "docker" "start" "-a" "d0d9b1880765b41bbc104f940abafadf55ad92048a4f352eb024dac7323025a4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling sysinfo v0.20.4
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.5
[INFO] [stderr]     Checking clap v3.0.0-beta.5
[INFO] [stderr]  Documenting sysusage 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:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(format_args_capture, associated_type_defaults, result_flattening)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `format_args_capture` has been stable since 1.58.0 and no longer requires an attribute to enable
[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 `sysusage`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name sysusage src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=ff206af1bdf60e1e -L dependency=/opt/rustwide/target/debug/deps --extern clap=/opt/rustwide/target/debug/deps/libclap-047b534e38b3d648.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-1e3c371ab90a7930.rmeta --extern pretty_env_logger=/opt/rustwide/target/debug/deps/libpretty_env_logger-436f87431254421a.rmeta --extern sysinfo=/opt/rustwide/target/debug/deps/libsysinfo-65d27c0521919f4c.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "d0d9b1880765b41bbc104f940abafadf55ad92048a4f352eb024dac7323025a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0d9b1880765b41bbc104f940abafadf55ad92048a4f352eb024dac7323025a4", kill_on_drop: false }`
[INFO] [stdout] d0d9b1880765b41bbc104f940abafadf55ad92048a4f352eb024dac7323025a4