[INFO] cloning repository https://github.com/iPTF14hls/mandelbrot-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iPTF14hls/mandelbrot-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FiPTF14hls%2Fmandelbrot-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FiPTF14hls%2Fmandelbrot-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] afc54b9bd2856512f4efd4fc45e539b37e6d93ae
[INFO] documenting iPTF14hls/mandelbrot-rs against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FiPTF14hls%2Fmandelbrot-rs" "/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/iPTF14hls/mandelbrot-rs on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iPTF14hls/mandelbrot-rs
[INFO] finished tweaking git repo https://github.com/iPTF14hls/mandelbrot-rs
[INFO] tweaked toml for git repo https://github.com/iPTF14hls/mandelbrot-rs written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/iPTF14hls/mandelbrot-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gobject-sys v0.8.0
[INFO] [stderr]   Downloaded pango-sys v0.8.0
[INFO] [stderr]   Downloaded gdk-pixbuf v0.6.0
[INFO] [stderr]   Downloaded atk v0.6.0
[INFO] [stderr]   Downloaded cairo-rs v0.6.0
[INFO] [stderr]   Downloaded atk-sys v0.8.0
[INFO] [stderr]   Downloaded gif v0.10.2
[INFO] [stderr]   Downloaded rayon-core v1.5.0
[INFO] [stderr]   Downloaded num-bigint v0.2.2
[INFO] [stderr]   Downloaded gdk-pixbuf-sys v0.8.0
[INFO] [stderr]   Downloaded gio v0.6.0
[INFO] [stderr]   Downloaded glib v0.7.1
[INFO] [stderr]   Downloaded x11 v2.18.1
[INFO] [stderr]   Downloaded fragile v0.3.0
[INFO] [stderr]   Downloaded rayon v1.1.0
[INFO] [stderr]   Downloaded image v0.22.1
[INFO] [stderr]   Downloaded cairo-sys-rs v0.8.0
[INFO] [stderr]   Downloaded gtk-sys v0.8.0
[INFO] [stderr]   Downloaded gtk v0.6.0
[INFO] [stderr]   Downloaded gdk v0.10.0
[INFO] [stderr]   Downloaded gio-sys v0.8.0
[INFO] [stderr]   Downloaded glib-sys v0.8.0
[INFO] [stderr]   Downloaded pango v0.6.0
[INFO] [stderr]   Downloaded relm-derive-common v0.16.0
[INFO] [stderr]   Downloaded gdk-sys v0.8.0
[INFO] [stderr]   Downloaded relm-state v0.16.0
[INFO] [stderr]   Downloaded relm v0.16.0
[INFO] [stderr]   Downloaded relm-core v0.16.0
[INFO] [stderr]   Downloaded relm-gen-widget v0.16.0
[INFO] [stderr]   Downloaded relm-derive v0.16.0
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77a1bdbce7e60ccdd4428c58a3f3282daf2dd4494c9fa9031aa969fe87f4684f
[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" "77a1bdbce7e60ccdd4428c58a3f3282daf2dd4494c9fa9031aa969fe87f4684f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77a1bdbce7e60ccdd4428c58a3f3282daf2dd4494c9fa9031aa969fe87f4684f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77a1bdbce7e60ccdd4428c58a3f3282daf2dd4494c9fa9031aa969fe87f4684f", kill_on_drop: false }`
[INFO] [stdout] 77a1bdbce7e60ccdd4428c58a3f3282daf2dd4494c9fa9031aa969fe87f4684f
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d84c356edb576a96915e1d3e419447e1c1d3b883b65bee55b4d77f6408cc548e
[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" "d84c356edb576a96915e1d3e419447e1c1d3b883b65bee55b4d77f6408cc548e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling gio v0.6.0
[INFO] [stderr]    Compiling cairo-rs v0.6.0
[INFO] [stderr]    Compiling pango v0.6.0
[INFO] [stderr]    Compiling gdk-pixbuf v0.6.0
[INFO] [stderr]    Compiling gdk v0.10.0
[INFO] [stderr]    Compiling gtk v0.6.0
[INFO] [stderr]    Compiling glib-sys v0.8.0
[INFO] [stderr]    Compiling gobject-sys v0.8.0
[INFO] [stderr]    Compiling gio-sys v0.8.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.8.0
[INFO] [stderr]    Compiling pango-sys v0.8.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.8.0
[INFO] [stderr]    Compiling x11 v2.18.1
[INFO] [stderr]    Compiling gdk-sys v0.8.0
[INFO] [stderr]    Compiling atk-sys v0.8.0
[INFO] [stderr]    Compiling gtk-sys v0.8.0
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]     Checking num-bigint v0.2.2
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling relm-gen-widget v0.16.0
[INFO] [stderr]     Checking rayon-core v1.5.0
[INFO] [stderr]    Compiling atk v0.6.0
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking glib v0.7.1
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]    Compiling relm-derive-common v0.16.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking image v0.22.1
[INFO] [stderr]    Compiling relm-derive v0.16.0
[INFO] [stderr]     Checking relm-core v0.16.0
[INFO] [stderr]     Checking relm-state v0.16.0
[INFO] [stderr]     Checking relm v0.16.0
[INFO] [stderr]  Documenting mandelbrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[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 `mandelbrot`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name mandelbrot src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern gdk_pixbuf=/opt/rustwide/target/debug/deps/libgdk_pixbuf-5faa95cba26d6799.rmeta --extern gdk_pixbuf_sys=/opt/rustwide/target/debug/deps/libgdk_pixbuf_sys-f9c0212d1333401f.rmeta --extern gio=/opt/rustwide/target/debug/deps/libgio-51ee32cb27c2ea0b.rmeta --extern gtk=/opt/rustwide/target/debug/deps/libgtk-fc7d696630d89b5f.rmeta --extern image=/opt/rustwide/target/debug/deps/libimage-54796313ca77ba08.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-afb99c67a6a005eb.rmeta --extern relm=/opt/rustwide/target/debug/deps/librelm-01ca75e324428dea.rmeta --extern relm_derive=/opt/rustwide/target/debug/deps/librelm_derive-fd1f01e9af2c856e.so --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "d84c356edb576a96915e1d3e419447e1c1d3b883b65bee55b4d77f6408cc548e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d84c356edb576a96915e1d3e419447e1c1d3b883b65bee55b4d77f6408cc548e", kill_on_drop: false }`
[INFO] [stdout] d84c356edb576a96915e1d3e419447e1c1d3b883b65bee55b4d77f6408cc548e
