[INFO] cloning repository https://github.com/hpatjens/issue-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hpatjens/issue-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhpatjens%2Fissue-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhpatjens%2Fissue-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 345b228e965e379afb2247586a07ff1e72ef9660
[INFO] checking hpatjens/issue-example against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhpatjens%2Fissue-example" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hpatjens/issue-example on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hpatjens/issue-example
[INFO] finished tweaking git repo https://github.com/hpatjens/issue-example
[INFO] tweaked toml for git repo https://github.com/hpatjens/issue-example written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/hpatjens/issue-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 340912bffa45f635c20346cb2330c23a0293366203bff1a89c94cde227ae4241
[INFO] running `Command { std: "docker" "start" "-a" "340912bffa45f635c20346cb2330c23a0293366203bff1a89c94cde227ae4241", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "340912bffa45f635c20346cb2330c23a0293366203bff1a89c94cde227ae4241", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "340912bffa45f635c20346cb2330c23a0293366203bff1a89c94cde227ae4241", kill_on_drop: false }`
[INFO] [stdout] 340912bffa45f635c20346cb2330c23a0293366203bff1a89c94cde227ae4241
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4dfb735bacb42eb9f746d389cecad4bd63ec59461d4798bf8dc93b2ace9b949e
[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" "4dfb735bacb42eb9f746d389cecad4bd63ec59461d4798bf8dc93b2ace9b949e", kill_on_drop: false }`
[INFO] [stderr]    Compiling vulkano v0.17.0
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]     Checking vk-sys v0.5.1
[INFO] [stderr]     Checking half v1.4.1
[INFO] [stderr]     Checking tobj v0.1.11
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking parking_lot_core v0.7.0
[INFO] [stderr]     Checking x11-dl v2.18.5
[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 num-complex v0.2.4
[INFO] [stderr]     Checking wayland-sys v0.23.6
[INFO] [stderr]     Checking num-rational v0.2.3
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking parking_lot v0.10.0
[INFO] [stderr]     Checking rusttype v0.8.2
[INFO] [stderr]     Checking wayland-commons v0.23.6
[INFO] [stderr]    Compiling shaderc-sys v0.6.1
[INFO] [stderr]     Checking alga v0.9.2
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking wayland-client v0.23.6
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking nalgebra v0.19.0
[INFO] [stderr]     Checking wayland-protocols v0.23.6
[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-1.0.14/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=a3b5b45390f74794 -C extra-filename=-a3b5b45390f74794 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-cca29f691eaa7111.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-ff5758c045625bdf.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-00e718d0d0f7c0e6.rmeta --cap-lints allow --cap-lints=forbid --cfg syn_disable_nightly_tests` (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" "4dfb735bacb42eb9f746d389cecad4bd63ec59461d4798bf8dc93b2ace9b949e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dfb735bacb42eb9f746d389cecad4bd63ec59461d4798bf8dc93b2ace9b949e", kill_on_drop: false }`
[INFO] [stdout] 4dfb735bacb42eb9f746d389cecad4bd63ec59461d4798bf8dc93b2ace9b949e