[INFO] cloning repository https://github.com/oeb25/beam
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/oeb25/beam" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foeb25%2Fbeam", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foeb25%2Fbeam'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] abe0bdb0e081e1c608f8f46f2d7be197faf99e2e
[INFO] testing oeb25/beam against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foeb25%2Fbeam" "/workspace/builds/worker-45/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-45/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/oeb25/beam on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/oeb25/beam
[INFO] finished tweaking git repo https://github.com/oeb25/beam
[INFO] tweaked toml for git repo https://github.com/oeb25/beam written to /workspace/builds/worker-45/source/Cargo.toml
[INFO] crate git repo https://github.com/oeb25/beam already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94ca4bf15fae614b7ad35fdb73b7bb25cc567cc69236333eafa857af1eb0cf23
[INFO] running `Command { std: "docker" "start" "-a" "94ca4bf15fae614b7ad35fdb73b7bb25cc567cc69236333eafa857af1eb0cf23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94ca4bf15fae614b7ad35fdb73b7bb25cc567cc69236333eafa857af1eb0cf23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94ca4bf15fae614b7ad35fdb73b7bb25cc567cc69236333eafa857af1eb0cf23", kill_on_drop: false }`
[INFO] [stdout] 94ca4bf15fae614b7ad35fdb73b7bb25cc567cc69236333eafa857af1eb0cf23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 737cf4aac58f3b79c5e21c620960526e197e7bc78779656e3161040c29507388
[INFO] running `Command { std: "docker" "start" "-a" "737cf4aac58f3b79c5e21c620960526e197e7bc78779656e3161040c29507388", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cfg-if v0.1.3
[INFO] [stderr]    Compiling num-traits v0.2.4
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling cc v1.0.15
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling bitflags v1.0.3
[INFO] [stderr]    Compiling byteorder v1.2.3
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling same-file v1.0.2
[INFO] [stderr]    Compiling num-integer v0.1.38
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling adler32 v1.0.2
[INFO] [stderr]    Compiling downcast-rs v1.0.3
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling smallvec v0.6.9
[INFO] [stderr]    Compiling xdg v2.2.0
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling serde v1.0.59
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling slab v0.1.3
[INFO] [stderr]    Compiling approx v0.1.1
[INFO] [stderr]    Compiling color_quant v1.0.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.8
[INFO] [stderr]    Compiling bytes v0.3.0
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling any-cache v0.2.3
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling syn v0.14.0
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling owning_ref v0.4.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling stb_truetype v0.2.6
[INFO] [stderr]    Compiling walkdir v2.1.4
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling xml-rs v0.3.6
[INFO] [stderr]    Compiling deflate v0.7.18
[INFO] [stderr]    Compiling inflate v0.4.2
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.21
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling gif v0.10.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling line_drawing v0.7.0
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling net2 v0.2.32
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling filetime v0.1.15
[INFO] [stderr]    Compiling shared_library v0.1.8
[INFO] [stderr]    Compiling inotify v0.3.0
[INFO] [stderr]    Compiling gl_generator v0.11.0
[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-0.15.42/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="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=ce3449bf790402ba -C extra-filename=-ce3449bf790402ba --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-2341dfc7d52c4d0a.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-b512be6a3f8c1d97.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-2f6444d33d391550.rmeta --cap-lints allow --cap-lints=warn --cfg syn_can_match_trailing_dollar --cfg syn_can_use_thread_id --cfg syn_can_use_associated_constants --cfg syn_can_call_macro_by_path --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 `Command { std: "docker" "inspect" "737cf4aac58f3b79c5e21c620960526e197e7bc78779656e3161040c29507388", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "737cf4aac58f3b79c5e21c620960526e197e7bc78779656e3161040c29507388", kill_on_drop: false }`
[INFO] [stdout] 737cf4aac58f3b79c5e21c620960526e197e7bc78779656e3161040c29507388