[INFO] updating cached repository https://github.com/eggmund/sort_visualiser
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b647b974dcd9e6ac494de2bf4d68a01c5cf15795
[INFO] checking eggmund/sort_visualiser against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66852
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feggmund%2Fsort_visualiser" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eggmund/sort_visualiser on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/eggmund/sort_visualiser
[INFO] finished tweaking git repo https://github.com/eggmund/sort_visualiser
[INFO] tweaked toml for git repo https://github.com/eggmund/sort_visualiser written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/eggmund/sort_visualiser already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] eda92b903dfe7f3919d1870f85ce6bad9af9fe852aa745777404df348563a264
[INFO] running `"docker" "start" "-a" "eda92b903dfe7f3919d1870f85ce6bad9af9fe852aa745777404df348563a264"`
[INFO] [stderr]    Compiling syn v0.15.36
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling cpal v0.10.0
[INFO] [stderr]     Checking conrod_winit v0.67.0
[INFO] [stderr]     Checking notosans v0.1.0
[INFO] [stderr]     Checking radix v0.5.0
[INFO] [stderr]    Compiling cmake v0.1.40
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]     Checking alsa-sys v0.1.2
[INFO] [stderr]     Checking x11-dl v2.18.3
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking euclid v0.20.3
[INFO] [stderr]     Checking pennereq v0.3.0
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling shrinkwraprs v0.2.1
[INFO] [stderr]     Checking backtrace v0.3.30
[INFO] [stderr]    Compiling shaderc-sys v0.6.1
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking sid v0.5.2
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking lyon_geom v0.14.1
[INFO] [stderr]     Checking rusttype v0.7.7
[INFO] [stderr]     Checking rayon-core v1.6.0
[INFO] [stderr]     Checking crossbeam v0.7.1
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking wayland-commons v0.21.13
[INFO] [stderr]     Checking vulkano v0.14.0
[INFO] [stderr]     Checking lyon_path v0.14.0
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking wayland-client v0.21.13
[INFO] [stderr]     Checking lyon_tessellation v0.14.1
[INFO] [stderr]     Checking lyon_algorithms v0.14.0
[INFO] [stderr]     Checking wayland-protocols v0.21.13
[INFO] [stderr]     Checking lyon v0.14.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking image v0.18.0
[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-0.15.36/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -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"' -C metadata=a44efcd2626acdfd -C extra-filename=-a44efcd2626acdfd --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-c700a91351243a0b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-c6cc53db7627ea60.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-fd0395677b5ee920.rmeta --cap-lints allow --cap-lints=forbid --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...
[ERROR] error running command: no output for 300 seconds
[INFO] running `"docker" "inspect" "eda92b903dfe7f3919d1870f85ce6bad9af9fe852aa745777404df348563a264"`
[INFO] running `"docker" "rm" "-f" "eda92b903dfe7f3919d1870f85ce6bad9af9fe852aa745777404df348563a264"`
[INFO] [stdout] eda92b903dfe7f3919d1870f85ce6bad9af9fe852aa745777404df348563a264