[INFO] updating cached repository https://github.com/SiegeEngine/siege-example-client
[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] d63627b04dfcd43a00a0eba49d03bb96989a719f
[INFO] checking SiegeEngine/siege-example-client against master#783139bd8fc3b94fac9a1bf81bba2c506e8221b6 for pr-72644
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSiegeEngine%2Fsiege-example-client" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SiegeEngine/siege-example-client on toolchain 783139bd8fc3b94fac9a1bf81bba2c506e8221b6
[INFO] running `"/workspace/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/SiegeEngine/siege-example-client
[INFO] finished tweaking git repo https://github.com/SiegeEngine/siege-example-client
[INFO] tweaked toml for git repo https://github.com/SiegeEngine/siege-example-client written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/SiegeEngine/siege-example-client already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "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" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "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] 89ba881197105bd562a9f65fae315990b550f7d7cbf48280ee0dcf3c1afec528
[INFO] running `"docker" "start" "-a" "89ba881197105bd562a9f65fae315990b550f7d7cbf48280ee0dcf3c1afec528"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling cc v1.0.15
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]     Checking serde v1.0.51
[INFO] [stderr]     Checking rustc-demangle v0.1.8
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling vks v0.21.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]     Checking color_quant v1.0.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking smallvec v0.6.1
[INFO] [stderr]     Checking owning_ref v0.2.4
[INFO] [stderr]     Checking spiral v0.1.9
[INFO] [stderr]     Checking bit-vec v0.4.4
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking stb_truetype v0.2.2 (https://github.com/SiegeEngine/stb_truetype-rs#af0d35d3)
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]    Compiling x11-dl v2.17.5
[INFO] [stderr]     Checking inflate v0.3.4
[INFO] [stderr]     Checking inflate v0.4.2
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling cmake v0.1.31
[INFO] [stderr]     Checking mio v0.6.14
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling syn v0.13.7
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]     Checking float-cmp v0.4.0
[INFO] [stderr]     Checking tempfile v3.0.1
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking ordered-float v0.5.0
[INFO] [stderr]     Checking rayon-core v1.4.0
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking parking_lot v0.3.8
[INFO] [stderr]     Checking rusttype v0.5.2 (https://github.com/SiegeEngine/rusttype#50f287e5)
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]    Compiling zstd-sys v1.4.3+zstd.1.3.4
[INFO] [stderr]     Checking rayon v1.0.1
[INFO] [stderr]     Checking chashmap v2.2.0
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling glsl-to-spirv v0.1.4
[INFO] [stderr]    Compiling rayon v0.8.2
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-sys v0.12.5
[INFO] [stderr]     Checking wayland-client v0.12.5
[INFO] [stderr]     Checking wayland-protocols v0.12.5
[INFO] [stderr]     Checking wayland-kbd v0.13.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.14
[INFO] [stderr]     Checking image v0.18.0
[INFO] [stderr]    Compiling ring v0.12.1
[INFO] [stderr]     Checking dacite v0.7.0 (https://gitlab.com/mikedilger/dacite.git#0ff09d25)
[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-0.13.7/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --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="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=4d773c8f6eff835a -C extra-filename=-4d773c8f6eff835a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-7b1f0acb00d6d2ed.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-af21e867b6a3371a.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-3f3b54cd162f976a.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "89ba881197105bd562a9f65fae315990b550f7d7cbf48280ee0dcf3c1afec528"`
[INFO] running `"docker" "rm" "-f" "89ba881197105bd562a9f65fae315990b550f7d7cbf48280ee0dcf3c1afec528"`
[INFO] [stdout] 89ba881197105bd562a9f65fae315990b550f7d7cbf48280ee0dcf3c1afec528