[INFO] cloning repository https://github.com/velvetops/mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/velvetops/mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvelvetops%2Fmandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvelvetops%2Fmandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 86990510289e881f5e1fb12b21a902d1c41d068d
[INFO] documenting velvetops/mandelbrot against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvelvetops%2Fmandelbrot" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  44% (641/1445)   
Checking out files:  45% (651/1445)   
Checking out files:  46% (665/1445)   
Checking out files:  47% (680/1445)   
Checking out files:  48% (694/1445)   
Checking out files:  49% (709/1445)   
Checking out files:  50% (723/1445)   
Checking out files:  51% (737/1445)   
Checking out files:  52% (752/1445)   
Checking out files:  53% (766/1445)   
Checking out files:  54% (781/1445)   
Checking out files:  55% (795/1445)   
Checking out files:  56% (810/1445)   
Checking out files:  57% (824/1445)   
Checking out files:  58% (839/1445)   
Checking out files:  59% (853/1445)   
Checking out files:  60% (867/1445)   
Checking out files:  61% (882/1445)   
Checking out files:  62% (896/1445)   
Checking out files:  63% (911/1445)   
Checking out files:  64% (925/1445)   
Checking out files:  65% (940/1445)   
Checking out files:  65% (943/1445)   
Checking out files:  66% (954/1445)   
Checking out files:  67% (969/1445)   
Checking out files:  68% (983/1445)   
Checking out files:  69% (998/1445)   
Checking out files:  70% (1012/1445)   
Checking out files:  71% (1026/1445)   
Checking out files:  72% (1041/1445)   
Checking out files:  73% (1055/1445)   
Checking out files:  74% (1070/1445)   
Checking out files:  75% (1084/1445)   
Checking out files:  76% (1099/1445)   
Checking out files:  77% (1113/1445)   
Checking out files:  78% (1128/1445)   
Checking out files:  79% (1142/1445)   
Checking out files:  80% (1156/1445)   
Checking out files:  81% (1171/1445)   
Checking out files:  82% (1185/1445)   
Checking out files:  83% (1200/1445)   
Checking out files:  84% (1214/1445)   
Checking out files:  85% (1229/1445)   
Checking out files:  86% (1243/1445)   
Checking out files:  87% (1258/1445)   
Checking out files:  88% (1272/1445)   
Checking out files:  89% (1287/1445)   
Checking out files:  90% (1301/1445)   
Checking out files:  91% (1315/1445)   
Checking out files:  92% (1330/1445)   
Checking out files:  93% (1344/1445)   
Checking out files:  94% (1359/1445)   
Checking out files:  95% (1373/1445)   
Checking out files:  96% (1388/1445)   
Checking out files:  97% (1402/1445)   
Checking out files:  98% (1417/1445)   
Checking out files:  99% (1431/1445)   
Checking out files: 100% (1445/1445)   
Checking out files: 100% (1445/1445), done.
[INFO] validating manifest of git repo https://github.com/velvetops/mandelbrot on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/velvetops/mandelbrot
[INFO] finished tweaking git repo https://github.com/velvetops/mandelbrot
[INFO] tweaked toml for git repo https://github.com/velvetops/mandelbrot written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/velvetops/mandelbrot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 323ed12a73d45d0058bb09059ebb0b37ee8ab975a0589ac01c25ed56ee683ef0
[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" "323ed12a73d45d0058bb09059ebb0b37ee8ab975a0589ac01c25ed56ee683ef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "323ed12a73d45d0058bb09059ebb0b37ee8ab975a0589ac01c25ed56ee683ef0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "323ed12a73d45d0058bb09059ebb0b37ee8ab975a0589ac01c25ed56ee683ef0", kill_on_drop: false }`
[INFO] [stdout] 323ed12a73d45d0058bb09059ebb0b37ee8ab975a0589ac01c25ed56ee683ef0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "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] 5223686c0b4f0d682a5677cadbf6f1f316e465d518230dc4d4fd7ab0839ae199
[INFO] running `Command { std: "docker" "start" "-a" "5223686c0b4f0d682a5677cadbf6f1f316e465d518230dc4d4fd7ab0839ae199", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.5
[INFO] [stderr]    Compiling cc v1.0.22
[INFO] [stderr]    Compiling serde v1.0.75
[INFO] [stderr]    Compiling num-bigint v0.2.0
[INFO] [stderr]    Compiling num-complex v0.2.0
[INFO] [stderr]     Checking log v0.4.4
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking stb_truetype v0.2.2
[INFO] [stderr]     Checking gif v0.10.0
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]     Checking tempfile v3.0.3
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling syn v0.14.8
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking ordered-float v0.5.0
[INFO] [stderr]     Checking gfx_core v0.8.2
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking num-iter v0.1.37
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking rusttype v0.4.3
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]     Checking piston2d-graphics v0.26.0
[INFO] [stderr]     Checking rayon v1.0.2
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-sys v0.12.5
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]    Compiling glutin v0.14.0
[INFO] [stderr]    Compiling gfx_gl v0.5.0
[INFO] [stderr]     Checking wayland-client v0.12.5
[INFO] [stderr]     Checking num-rational v0.2.1
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking wayland-protocols v0.12.5
[INFO] [stderr]     Checking wayland-kbd v0.13.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling serde_derive v1.0.75
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]     Checking gfx v0.17.1
[INFO] [stderr]     Checking image v0.19.0
[INFO] [stderr]     Checking wayland-window v0.13.3
[INFO] [stderr]     Checking winit v0.12.0
[INFO] [stderr]     Checking gfx_device_gl v0.15.3
[INFO] [stderr]     Checking piston-gfx_texture v0.32.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.51.0
[INFO] [stderr]     Checking pistoncore-input v0.21.0
[INFO] [stderr]     Checking pistoncore-window v0.32.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.37.0
[INFO] [stderr]     Checking pistoncore-glutin_window v0.47.0
[INFO] [stderr]     Checking piston v0.37.0
[INFO] [stderr]     Checking piston_window v0.80.0
[INFO] [stderr]  Documenting mandelbrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected identifier, found `<<`
[INFO] [stdout]  --> src/main.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | <<<<<<< HEAD
[INFO] [stdout]   | ^^ expected identifier
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `mandelbrot`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --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 image=/opt/rustwide/target/debug/deps/libimage-6f230e86b8cdce28.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-d19332f445a1fdc3.rmeta --extern piston_window=/opt/rustwide/target/debug/deps/libpiston_window-def8a86c36744a14.rmeta --cap-lints=warn` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "5223686c0b4f0d682a5677cadbf6f1f316e465d518230dc4d4fd7ab0839ae199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5223686c0b4f0d682a5677cadbf6f1f316e465d518230dc4d4fd7ab0839ae199", kill_on_drop: false }`
[INFO] [stdout] 5223686c0b4f0d682a5677cadbf6f1f316e465d518230dc4d4fd7ab0839ae199