[INFO] cloning repository https://github.com/mwalczyk/folding
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mwalczyk/folding" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwalczyk%2Ffolding", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwalczyk%2Ffolding'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a503a84c7f8dc2595e81b3429634b508c10ec6e4
[INFO] documenting mwalczyk/folding 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%2Fmwalczyk%2Ffolding" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mwalczyk/folding 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/mwalczyk/folding
[INFO] finished tweaking git repo https://github.com/mwalczyk/folding
[INFO] tweaked toml for git repo https://github.com/mwalczyk/folding written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/mwalczyk/folding 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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 2c3372bda3fdcb7a0218c6c439087bfcd9089c082ee860ce2d7da6ff0e9c8bf3
[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" "2c3372bda3fdcb7a0218c6c439087bfcd9089c082ee860ce2d7da6ff0e9c8bf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c3372bda3fdcb7a0218c6c439087bfcd9089c082ee860ce2d7da6ff0e9c8bf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c3372bda3fdcb7a0218c6c439087bfcd9089c082ee860ce2d7da6ff0e9c8bf3", kill_on_drop: false }`
[INFO] [stdout] 2c3372bda3fdcb7a0218c6c439087bfcd9089c082ee860ce2d7da6ff0e9c8bf3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 31bfaf9f511cc6dcefe6c8f6c80467b5ed75ec1684fafd3955cd5b390d98d02f
[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" "31bfaf9f511cc6dcefe6c8f6c80467b5ed75ec1684fafd3955cd5b390d98d02f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]     Checking inflate v0.3.4
[INFO] [stderr]    Compiling gl_generator v0.13.1
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking raw-window-handle v0.1.2
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking wayland-sys v0.23.6
[INFO] [stderr]     Checking parking_lot_core v0.5.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.16
[INFO] [stderr]     Checking wayland-commons v0.23.6
[INFO] [stderr]     Checking rusttype v0.8.0
[INFO] [stderr]     Checking cgmath v0.17.0
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking parking_lot v0.8.0
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking image v0.18.0
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking calloop v0.4.4
[INFO] [stderr]    Compiling gl v0.13.0
[INFO] [stderr]    Compiling wayland-client v0.23.6
[INFO] [stderr]    Compiling wayland-protocols v0.23.6
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]     Checking graphics_utils v0.1.0 (https://github.com/mwalczyk/graphics_utils#82eaeff4)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `image`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/graphics_utils-2faf48c2dc80d419/82eaeff/src/utils.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     image::save_buffer(path, &pixels, width, height, image::RGB(8)).unwrap();
[INFO] [stdout]    |     ^^^^^ use of undeclared type or module `image`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `image`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/graphics_utils-2faf48c2dc80d419/82eaeff/src/utils.rs:26:54
[INFO] [stdout]    |
[INFO] [stdout] 26 |     image::save_buffer(path, &pixels, width, height, image::RGB(8)).unwrap();
[INFO] [stdout]    |                                                      ^^^^^ use of undeclared type or module `image`
[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 E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `graphics_utils`.
[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" "31bfaf9f511cc6dcefe6c8f6c80467b5ed75ec1684fafd3955cd5b390d98d02f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31bfaf9f511cc6dcefe6c8f6c80467b5ed75ec1684fafd3955cd5b390d98d02f", kill_on_drop: false }`
[INFO] [stdout] 31bfaf9f511cc6dcefe6c8f6c80467b5ed75ec1684fafd3955cd5b390d98d02f