[INFO] cloning repository https://github.com/kamicut/rust-fractal-experiments
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kamicut/rust-fractal-experiments" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamicut%2Frust-fractal-experiments", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamicut%2Frust-fractal-experiments'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] afa741af34b8c345ec77b53ef570fd47d86b296c
[INFO] documenting kamicut/rust-fractal-experiments 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%2Fkamicut%2Frust-fractal-experiments" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kamicut/rust-fractal-experiments 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/kamicut/rust-fractal-experiments
[INFO] finished tweaking git repo https://github.com/kamicut/rust-fractal-experiments
[INFO] tweaked toml for git repo https://github.com/kamicut/rust-fractal-experiments written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/kamicut/rust-fractal-experiments 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-0/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a3e766f9abab99d65c3494e95e418f4b35eed0322e27ef6dcd24215c8ed89b43
[INFO] running `Command { std: "docker" "start" "-a" "a3e766f9abab99d65c3494e95e418f4b35eed0322e27ef6dcd24215c8ed89b43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3e766f9abab99d65c3494e95e418f4b35eed0322e27ef6dcd24215c8ed89b43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3e766f9abab99d65c3494e95e418f4b35eed0322e27ef6dcd24215c8ed89b43", kill_on_drop: false }`
[INFO] [stdout] a3e766f9abab99d65c3494e95e418f4b35eed0322e27ef6dcd24215c8ed89b43
[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] [stdout] 3e29ab2313a2dd71fa5d00db0e99a4925bb1791d583430a063c6bb29697f008c
[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" "3e29ab2313a2dd71fa5d00db0e99a4925bb1791d583430a063c6bb29697f008c", kill_on_drop: false }`
[INFO] [stderr]     Checking piston-shaders_graphics2d v0.2.1
[INFO] [stderr]    Compiling xml-rs v0.6.1
[INFO] [stderr]     Checking draw_state v0.3.0
[INFO] [stderr]     Checking piston2d-graphics v0.15.0
[INFO] [stderr]    Compiling wayland-scanner v0.5.11
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling gl_generator v0.4.2
[INFO] [stderr]     Checking pistoncore-window v0.15.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking png v0.4.3
[INFO] [stderr]     Checking freetype-rs v0.5.0
[INFO] [stderr]    Compiling serde_json v0.9.10
[INFO] [stderr]     Checking pistoncore-event_loop v0.18.0
[INFO] [stderr]     Checking piston v0.18.0
[INFO] [stderr]     Checking gfx_core v0.1.2
[INFO] [stderr]    Compiling glutin v0.4.9
[INFO] [stderr]    Compiling gl v0.5.2
[INFO] [stderr]     Checking image v0.7.2
[INFO] [stderr]    Compiling wayland-client v0.5.12
[INFO] [stderr]    Compiling gl_generator v0.5.5
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling target_build_utils v0.3.1
[INFO] [stderr]    Compiling gfx_gl v0.3.1
[INFO] [stderr]     Checking gfx v0.9.1
[INFO] [stderr]     Checking piston-gfx_texture v0.10.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.23.1
[INFO] [stdout] error: `$crate` may not be imported
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/piston2d-gfx_graphics-0.23.1/src/back_end.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | / gfx_pipeline_base!( pipe_colored {
[INFO] [stdout] 31 | |     pos: gfx::VertexBuffer<PositionFormat>,
[INFO] [stdout] 32 | |     color: gfx::VertexBuffer<ColorFormat>,
[INFO] [stdout] 33 | |     blend_target: gfx::BlendTarget<gfx::format::Srgb8>,
[INFO] [stdout] ...  |
[INFO] [stdout] 36 | |     scissor: gfx::Scissor,
[INFO] [stdout] 37 | | });
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `$crate` may not be imported
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/piston2d-gfx_graphics-0.23.1/src/back_end.rs:39:1
[INFO] [stdout]    |
[INFO] [stdout] 39 | / gfx_pipeline_base!( pipe_textured {
[INFO] [stdout] 40 | |     pos: gfx::VertexBuffer<PositionFormat>,
[INFO] [stdout] 41 | |     uv: gfx::VertexBuffer<TexCoordsFormat>,
[INFO] [stdout] 42 | |     color: gfx::Global<[f32; 4]>,
[INFO] [stdout] ...  |
[INFO] [stdout] 47 | |     scissor: gfx::Scissor,
[INFO] [stdout] 48 | | });
[INFO] [stdout]    | |___^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `piston2d-gfx_graphics`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3e29ab2313a2dd71fa5d00db0e99a4925bb1791d583430a063c6bb29697f008c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e29ab2313a2dd71fa5d00db0e99a4925bb1791d583430a063c6bb29697f008c", kill_on_drop: false }`
[INFO] [stdout] 3e29ab2313a2dd71fa5d00db0e99a4925bb1791d583430a063c6bb29697f008c