[INFO] updating cached repository https://github.com/anchpop/xtr
[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] 0373e0454500135ac9ab67300b66b0b948812df5
[INFO] testing anchpop/xtr against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanchpop%2Fxtr" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anchpop/xtr on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/anchpop/xtr
[INFO] finished tweaking git repo https://github.com/anchpop/xtr
[INFO] tweaked toml for git repo https://github.com/anchpop/xtr written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/anchpop/xtr already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7daaeba90bf59386750f90172ec5c9a7e0ec188bc685223c2ca97f2f924801dc
[INFO] running `"docker" "start" "-a" "7daaeba90bf59386750f90172ec5c9a7e0ec188bc685223c2ca97f2f924801dc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.25
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling proc-macro2 v1.0.17
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]    Compiling png v0.16.3
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling gfx-memory v0.1.3
[INFO] [stderr]    Compiling gfx-descriptor v0.1.0
[INFO] [stderr]    Compiling rusttype v0.8.3
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]    Compiling gfx-backend-vulkan v0.5.6
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]    Compiling calloop v0.4.4
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling rusttype v0.7.9
[INFO] [stderr]    Compiling wayland-client v0.23.6
[INFO] [stderr]    Compiling glsl-to-spirv v0.1.7
[INFO] [stderr]    Compiling andrew v0.2.1
[INFO] [stderr]    Compiling wayland-protocols v0.23.6
[INFO] [stderr]    Compiling jpeg-decoder v0.1.19
[INFO] [stderr]    Compiling image v0.23.4
[INFO] [stderr]    Compiling smithay-client-toolkit v0.6.6
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling winit v0.20.0
[INFO] [stderr] error: could not compile `syn`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.25/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=c49268034549093b -C extra-filename=-c49268034549093b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-cbc1308eb38c87f5.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-15ff083c0168023d.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-ea1ed2e1e1c986b4.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "7daaeba90bf59386750f90172ec5c9a7e0ec188bc685223c2ca97f2f924801dc"`
[INFO] running `"docker" "rm" "-f" "7daaeba90bf59386750f90172ec5c9a7e0ec188bc685223c2ca97f2f924801dc"`
[INFO] [stdout] 7daaeba90bf59386750f90172ec5c9a7e0ec188bc685223c2ca97f2f924801dc