[INFO] cloning repository https://github.com/RomanAkberov/learn-wgpu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RomanAkberov/learn-wgpu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRomanAkberov%2Flearn-wgpu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRomanAkberov%2Flearn-wgpu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 71616072ce3ffeffd23f84aabc5f0bb58dee0de6
[INFO] documenting RomanAkberov/learn-wgpu 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%2FRomanAkberov%2Flearn-wgpu" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RomanAkberov/learn-wgpu 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/RomanAkberov/learn-wgpu
[INFO] finished tweaking git repo https://github.com/RomanAkberov/learn-wgpu
[INFO] tweaked toml for git repo https://github.com/RomanAkberov/learn-wgpu written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/RomanAkberov/learn-wgpu 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]  Downloading crates ...
[INFO] [stderr]   Downloaded hibitset v0.6.3
[INFO] [stderr]   Downloaded gfx-hal v0.5.2
[INFO] [stderr]   Downloaded shaderc v0.6.2
[INFO] [stderr]   Downloaded gfx-backend-dx11 v0.5.1
[INFO] [stderr]   Downloaded wio v0.2.2
[INFO] [stderr]   Downloaded futures-executor v0.3.5
[INFO] [stderr]   Downloaded once_cell v1.4.0
[INFO] [stderr]   Downloaded cc v1.0.54
[INFO] [stderr]   Downloaded miniz_oxide v0.3.7
[INFO] [stderr]   Downloaded range-alloc v0.1.1
[INFO] [stderr]   Downloaded js-sys v0.3.40
[INFO] [stderr]   Downloaded png v0.16.5
[INFO] [stderr]   Downloaded hermit-abi v0.1.14
[INFO] [stderr]   Downloaded cgmath v0.17.0
[INFO] [stderr]   Downloaded core-graphics v0.19.0
[INFO] [stderr]   Downloaded bumpalo v3.4.0
[INFO] [stderr]   Downloaded cocoa v0.20.1
[INFO] [stderr]   Downloaded pin-project-internal v0.4.22
[INFO] [stderr]   Downloaded futures-io v0.3.5
[INFO] [stderr]   Downloaded num-iter v0.1.41
[INFO] [stderr]   Downloaded toml v0.5.6
[INFO] [stderr]   Downloaded core-foundation v0.7.0
[INFO] [stderr]   Downloaded derivative v2.1.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.18
[INFO] [stderr]   Downloaded atom v0.3.5
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[INFO] [stderr]   Downloaded futures-channel v0.3.5
[INFO] [stderr]   Downloaded pin-project v0.4.22
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.63
[INFO] [stderr]   Downloaded syn v1.0.31
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.19
[INFO] [stderr]   Downloaded objc_exception v0.1.2
[INFO] [stderr]   Downloaded gfx-backend-dx12 v0.5.7
[INFO] [stderr]   Downloaded wgpu v0.5.0
[INFO] [stderr]   Downloaded futures-sink v0.3.5
[INFO] [stderr]   Downloaded futures-util v0.3.5
[INFO] [stderr]   Downloaded core-foundation-sys v0.7.0
[INFO] [stderr]   Downloaded futures-task v0.3.5
[INFO] [stderr]   Downloaded ash v0.30.0
[INFO] [stderr]   Downloaded libloading v0.6.2
[INFO] [stderr]   Downloaded libc v0.2.71
[INFO] [stderr]   Downloaded mio v0.6.22
[INFO] [stderr]   Downloaded serde v1.0.111
[INFO] [stderr]   Downloaded cmake v0.1.44
[INFO] [stderr]   Downloaded storage-map v0.2.0
[INFO] [stderr]   Downloaded shaderc-sys v0.6.2
[INFO] [stderr]   Downloaded metal v0.18.0
[INFO] [stderr]   Downloaded core-video-sys v0.1.4
[INFO] [stderr]   Downloaded instant v0.1.4
[INFO] [stderr]   Downloaded android_log-sys v0.1.2
[INFO] [stderr]   Downloaded jni-sys v0.3.0
[INFO] [stderr]   Downloaded proc-macro-crate v0.1.4
[INFO] [stderr]   Downloaded num_enum_derive v0.4.3
[INFO] [stderr]   Downloaded num_enum v0.4.3
[INFO] [stderr]   Downloaded ndk-glue v0.1.0
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[INFO] [stderr]   Downloaded gfx-auxil v0.4.0
[INFO] [stderr]   Downloaded gfx-backend-metal v0.5.4
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[INFO] [stderr]   Downloaded spirv_cross v0.20.0
[INFO] [stderr]   Downloaded x11 v2.18.2
[INFO] [stderr]   Downloaded gfx-descriptor v0.1.0
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.63
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.16
[INFO] [stderr]   Downloaded net2 v0.2.34
[INFO] [stderr]   Downloaded futures-core v0.3.5
[INFO] [stderr]   Downloaded futures-macro v0.3.5
[INFO] [stderr]   Downloaded memchr v2.3.3
[INFO] [stderr]   Downloaded pin-utils v0.1.0
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.6
[INFO] [stderr]   Downloaded futures v0.3.5
[INFO] [stderr]   Downloaded crossbeam-queue v0.2.3
[INFO] [stderr]   Downloaded num-integer v0.1.43
[INFO] [stderr]   Downloaded xml-rs v0.8.3
[INFO] [stderr]   Downloaded dlib v0.4.2
[INFO] [stderr]   Downloaded winit v0.22.2
[INFO] [stderr]   Downloaded d3d12 v0.3.0
[INFO] [stderr]   Downloaded gfx-backend-empty v0.5.0
[INFO] [stderr]   Downloaded copyless v0.1.5
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.63
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.63
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.63
[INFO] [stderr]   Downloaded fxhash v0.2.1
[INFO] [stderr]   Downloaded peek-poke v0.2.0
[INFO] [stderr]   Downloaded vec_map v0.8.2
[INFO] [stderr]   Downloaded synstructure v0.12.4
[INFO] [stderr]   Downloaded num-traits v0.2.12
[INFO] [stderr]   Downloaded gfx-memory v0.1.3
[INFO] [stderr]   Downloaded wgpu-core v0.5.5
[INFO] [stderr]   Downloaded wgpu-native v0.5.0
[INFO] [stderr]   Downloaded peek-poke-derive v0.2.1
[INFO] [stderr]   Downloaded wgpu-types v0.5.1
[INFO] [stderr]   Downloaded ndk v0.1.0
[INFO] [stderr]   Downloaded ndk-sys v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] c774660edd530bb30b04ca7eea5b74b8bc4b05182f380fbdbf45662546f109fe
[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" "c774660edd530bb30b04ca7eea5b74b8bc4b05182f380fbdbf45662546f109fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c774660edd530bb30b04ca7eea5b74b8bc4b05182f380fbdbf45662546f109fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c774660edd530bb30b04ca7eea5b74b8bc4b05182f380fbdbf45662546f109fe", kill_on_drop: false }`
[INFO] [stdout] c774660edd530bb30b04ca7eea5b74b8bc4b05182f380fbdbf45662546f109fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e7b09b67eeb9ed8532139f865d752329cb321cb42ee3697af3b3388d735aefbc
[INFO] running `Command { std: "docker" "start" "-a" "e7b09b67eeb9ed8532139f865d752329cb321cb42ee3697af3b3388d735aefbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling shaderc-sys v0.6.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking gfx-hal v0.5.2
[INFO] [stderr]     Checking ash v0.30.0
[INFO] [stderr]     Checking image v0.23.5
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking cgmath v0.17.0
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking smithay-client-toolkit v0.6.6
[INFO] [stderr] error: could not compile `syn`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.31/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -Cembed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=b33c83f0ab2a4d9e -C extra-filename=-b33c83f0ab2a4d9e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-47f91dee37306a13.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-c5bbe94514f4f0e8.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-00e718d0d0f7c0e6.rmeta --cap-lints allow --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr] warning: System installed library not found.  Falling back to build from source
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e7b09b67eeb9ed8532139f865d752329cb321cb42ee3697af3b3388d735aefbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7b09b67eeb9ed8532139f865d752329cb321cb42ee3697af3b3388d735aefbc", kill_on_drop: false }`
[INFO] [stdout] e7b09b67eeb9ed8532139f865d752329cb321cb42ee3697af3b3388d735aefbc