[INFO] cloning repository https://github.com/awoimbee/fractol_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/awoimbee/fractol_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fawoimbee%2Ffractol_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fawoimbee%2Ffractol_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 51e05f36f57377f5ab9a187b50e72285c4d9bbd2
[INFO] checking awoimbee/fractol_rust against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fawoimbee%2Ffractol_rust" "/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/awoimbee/fractol_rust on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/awoimbee/fractol_rust
[INFO] finished tweaking git repo https://github.com/awoimbee/fractol_rust
[INFO] tweaked toml for git repo https://github.com/awoimbee/fractol_rust written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/awoimbee/fractol_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded metal v0.13.1
[INFO] [stderr]   Downloaded bitfield v0.13.2
[INFO] [stderr]   Downloaded downcast-rs v1.1.0
[INFO] [stderr]   Downloaded xml-rs v0.8.0
[INFO] [stderr]   Downloaded wayland-scanner v0.21.13
[INFO] [stderr]   Downloaded shaderc v0.6.1
[INFO] [stderr]   Downloaded cmake v0.1.42
[INFO] [stderr]   Downloaded stb_truetype v0.3.0
[INFO] [stderr]   Downloaded wayland-commons v0.21.13
[INFO] [stderr]   Downloaded wayland-sys v0.21.13
[INFO] [stderr]   Downloaded cocoa v0.18.4
[INFO] [stderr]   Downloaded rusttype v0.8.1
[INFO] [stderr]   Downloaded half v1.4.0
[INFO] [stderr]   Downloaded wayland-protocols v0.21.13
[INFO] [stderr]   Downloaded smithay-client-toolkit v0.4.6
[INFO] [stderr]   Downloaded libc v0.2.64
[INFO] [stderr]   Downloaded x11-dl v2.18.4
[INFO] [stderr]   Downloaded wayland-client v0.21.13
[INFO] [stderr]   Downloaded shaderc-sys v0.6.1
[INFO] [stderr]   Downloaded objc_exception v0.1.1
[INFO] [stderr]   Downloaded vulkano-win v0.14.0
[INFO] [stderr]   Downloaded vulkano-shaders v0.14.0
[INFO] [stderr]   Downloaded vk-sys v0.4.0
[INFO] [stderr]   Downloaded vulkano v0.14.0
[INFO] [stderr]   Downloaded winit v0.19.3
[INFO] [stderr]   Downloaded objc v0.2.6
[INFO] [stderr]   Downloaded crossbeam v0.7.2
[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" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ae9e5114cc6cbb84a7cacdf98fa4a5d2f84a205effcc8aaf5b75c5b5f026a5d
[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" "5ae9e5114cc6cbb84a7cacdf98fa4a5d2f84a205effcc8aaf5b75c5b5f026a5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ae9e5114cc6cbb84a7cacdf98fa4a5d2f84a205effcc8aaf5b75c5b5f026a5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ae9e5114cc6cbb84a7cacdf98fa4a5d2f84a205effcc8aaf5b75c5b5f026a5d", kill_on_drop: false }`
[INFO] [stdout] 5ae9e5114cc6cbb84a7cacdf98fa4a5d2f84a205effcc8aaf5b75c5b5f026a5d
[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" "RUSTFLAGS=--cap-lints=forbid" "-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" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab1de62f7295276b029e4fd3426837e3fdc8addde4864bd4db0d610120b669a5
[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" "ab1de62f7295276b029e4fd3426837e3fdc8addde4864bd4db0d610120b669a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.64
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking downcast-rs v1.1.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]    Compiling vulkano v0.14.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking half v1.4.0
[INFO] [stderr]     Checking vk-sys v0.4.0
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking arrayvec v0.4.12
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[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 crossbeam-channel v0.3.9
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking stb_truetype v0.3.0
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling shaderc-sys v0.6.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking x11-dl v2.18.4
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking rusttype v0.8.1
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking crossbeam v0.7.2
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]    Compiling wayland-client v0.21.13
[INFO] [stderr]    Compiling wayland-protocols v0.21.13
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.44/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=89a11654a768fdc0 -C extra-filename=-89a11654a768fdc0 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ab33b97f38e6e831.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-476d26c939207289.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-e62bdf8dd5704851.rmeta --cap-lints allow --cap-lints=forbid --cfg syn_can_match_trailing_dollar --cfg syn_can_use_thread_id --cfg syn_can_use_associated_constants --cfg syn_can_call_macro_by_path` (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" "ab1de62f7295276b029e4fd3426837e3fdc8addde4864bd4db0d610120b669a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab1de62f7295276b029e4fd3426837e3fdc8addde4864bd4db0d610120b669a5", kill_on_drop: false }`
[INFO] [stdout] ab1de62f7295276b029e4fd3426837e3fdc8addde4864bd4db0d610120b669a5