[INFO] cloning repository https://github.com/vitvakatu/cubes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vitvakatu/cubes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvitvakatu%2Fcubes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvitvakatu%2Fcubes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5b283eefe87fbfe0e83b33bfd8b9e4a7cfdd17ef
[INFO] checking vitvakatu/cubes against master#d62d3f7fa9a91d933213cc10e20e740608983f64 for pr-77015
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvitvakatu%2Fcubes" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vitvakatu/cubes on toolchain d62d3f7fa9a91d933213cc10e20e740608983f64
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vitvakatu/cubes
[INFO] finished tweaking git repo https://github.com/vitvakatu/cubes
[INFO] tweaked toml for git repo https://github.com/vitvakatu/cubes written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/vitvakatu/cubes already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21cd012a53f0af9b2c6b38b401a8f895ae9c81d1d3c028fcf40cd9bfbed35e26
[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" "21cd012a53f0af9b2c6b38b401a8f895ae9c81d1d3c028fcf40cd9bfbed35e26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21cd012a53f0af9b2c6b38b401a8f895ae9c81d1d3c028fcf40cd9bfbed35e26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21cd012a53f0af9b2c6b38b401a8f895ae9c81d1d3c028fcf40cd9bfbed35e26", kill_on_drop: false }`
[INFO] [stdout] 21cd012a53f0af9b2c6b38b401a8f895ae9c81d1d3c028fcf40cd9bfbed35e26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be5ecab3a56ea34a57c61c87d27ac6b53f270bcae35ba2d80669b4f1f6a749ad
[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" "be5ecab3a56ea34a57c61c87d27ac6b53f270bcae35ba2d80669b4f1f6a749ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling syn v0.15.30
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking rustc-demangle v0.1.13
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]    Compiling arrayref v0.3.5
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling cmake v0.1.37
[INFO] [stderr]     Checking froggy v0.4.4 (https://github.com/kvark/froggy?rev=c10e2dd1ce8bdd194#c10e2dd1)
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking stb_truetype v0.2.6
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking x11-dl v2.18.3
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.6.6
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-sys v0.21.12
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]     Checking rusttype v0.7.5
[INFO] [stderr]     Checking wayland-commons v0.21.12
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]    Compiling wayland-scanner v0.21.12
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]    Compiling glsl-to-spirv v0.1.7
[INFO] [stderr]     Checking tempfile v3.0.7
[INFO] [stderr]     Checking cgmath v0.17.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking regex v1.1.5
[INFO] [stderr]    Compiling wayland-client v0.21.12
[INFO] [stderr]    Compiling wayland-protocols v0.21.12
[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-0.15.30/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --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="extra-traits"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=5822c542325934e1 -C extra-filename=-5822c542325934e1 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-32150671430a1756.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-d006e8c10ab2ac37.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-5ef45b28e7fc52f2.rmeta --cap-lints allow --cap-lints=forbid --cfg syn_can_use_thread_id --cfg syn_can_call_macro_by_path` (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" "be5ecab3a56ea34a57c61c87d27ac6b53f270bcae35ba2d80669b4f1f6a749ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be5ecab3a56ea34a57c61c87d27ac6b53f270bcae35ba2d80669b4f1f6a749ad", kill_on_drop: false }`
[INFO] [stdout] be5ecab3a56ea34a57c61c87d27ac6b53f270bcae35ba2d80669b4f1f6a749ad