[INFO] cloning repository https://github.com/enricobn/slideshow
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/enricobn/slideshow" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenricobn%2Fslideshow", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenricobn%2Fslideshow'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a25775a1c4c1416d3efbf3f49905ed0234e72afa
[INFO] documenting enricobn/slideshow against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenricobn%2Fslideshow" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/enricobn/slideshow on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/enricobn/slideshow
[INFO] finished tweaking git repo https://github.com/enricobn/slideshow
[INFO] tweaked toml for git repo https://github.com/enricobn/slideshow written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/enricobn/slideshow already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded getrandom v0.1.9
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.49
[INFO] [stderr]   Downloaded gfx_gl v0.6.0
[INFO] [stderr]   Downloaded nix v0.11.1
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.49
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.49
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.49
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.49
[INFO] [stderr]   Downloaded glyph_brush v0.5.3
[INFO] [stderr]   Downloaded stdweb v0.4.18
[INFO] [stderr]   Downloaded image v0.22.1
[INFO] [stderr]   Downloaded bumpalo v2.5.0
[INFO] [stderr]   Downloaded quote v1.0.1
[INFO] [stderr]   Downloaded syn v1.0.2
[INFO] [stderr]   Downloaded gilrs v0.7.2
[INFO] [stderr]   Downloaded glyph_brush_layout v0.1.6
[INFO] [stderr]   Downloaded zip v0.5.3
[INFO] [stderr]   Downloaded gfx_core v0.9.1
[INFO] [stderr]   Downloaded gfx v0.18.1
[INFO] [stderr]   Downloaded gilrs-core v0.2.3
[INFO] [stderr]   Downloaded gfx_device_gl v0.16.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b89259fbf12f5d25e63bdf47e2f9aa8fe2e68179d563f1fbbeb5bb032a170f46
[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" "b89259fbf12f5d25e63bdf47e2f9aa8fe2e68179d563f1fbbeb5bb032a170f46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b89259fbf12f5d25e63bdf47e2f9aa8fe2e68179d563f1fbbeb5bb032a170f46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b89259fbf12f5d25e63bdf47e2f9aa8fe2e68179d563f1fbbeb5bb032a170f46", kill_on_drop: false }`
[INFO] [stdout] b89259fbf12f5d25e63bdf47e2f9aa8fe2e68179d563f1fbbeb5bb032a170f46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1180e015cffe8428969c88c896f3f4cd73f1fd49b4b9802ee121d3f1b9c2840
[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" "f1180e015cffe8428969c88c896f3f4cd73f1fd49b4b9802ee121d3f1b9c2840", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.9
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling minimp3-sys v0.3.1
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking nix v0.11.1
[INFO] [stderr]     Checking toml v0.5.3
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]     Checking bzip2-sys v0.1.7
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking png v0.15.0
[INFO] [stderr]    Compiling backtrace v0.3.34
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]    Compiling euclid_macros v0.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.98
[INFO] [stderr]    Compiling derivative v1.0.2
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling smart-default v0.5.2
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking sid v0.5.2
[INFO] [stderr]     Checking zip v0.5.3
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]     Checking num-iter v0.1.39
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking cpal v0.8.2
[INFO] [stderr]     Checking alga v0.9.1
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking minimp3 v0.3.3
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]    Compiling gfx_gl v0.6.0
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.3
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.5
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr] error: could not compile `derivative`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name derivative /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/derivative-1.0.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -Cembed-bitcode=no -C debuginfo=2 -C metadata=11e3688350db546b -C extra-filename=-11e3688350db546b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-1c8cd06d03ec2d01.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-179b18ceb2cbc452.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-b3468758892a6b1b.rlib --extern proc_macro --cap-lints allow` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f1180e015cffe8428969c88c896f3f4cd73f1fd49b4b9802ee121d3f1b9c2840", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1180e015cffe8428969c88c896f3f4cd73f1fd49b4b9802ee121d3f1b9c2840", kill_on_drop: false }`
[INFO] [stdout] f1180e015cffe8428969c88c896f3f4cd73f1fd49b4b9802ee121d3f1b9c2840