[INFO] cloning repository https://github.com/MeirKlemp/bevy_2048
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MeirKlemp/bevy_2048" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMeirKlemp%2Fbevy_2048", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMeirKlemp%2Fbevy_2048'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8d2d85acf9ce6696b64fb4adfb7ac28caa101433
[INFO] checking MeirKlemp/bevy_2048 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMeirKlemp%2Fbevy_2048" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MeirKlemp/bevy_2048 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MeirKlemp/bevy_2048
[INFO] finished tweaking git repo https://github.com/MeirKlemp/bevy_2048
[INFO] tweaked toml for git repo https://github.com/MeirKlemp/bevy_2048 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/MeirKlemp/bevy_2048 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6e5f6425c801796d04ac0fd7e61aaa94f9eb45ea2fce9381a68626583787857
[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" "e6e5f6425c801796d04ac0fd7e61aaa94f9eb45ea2fce9381a68626583787857", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6e5f6425c801796d04ac0fd7e61aaa94f9eb45ea2fce9381a68626583787857", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6e5f6425c801796d04ac0fd7e61aaa94f9eb45ea2fce9381a68626583787857", kill_on_drop: false }`
[INFO] [stdout] e6e5f6425c801796d04ac0fd7e61aaa94f9eb45ea2fce9381a68626583787857
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0713f47a760fb2886e0be755173f2173b3d60ac85cd2f39b4f40266d60890ce8
[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" "0713f47a760fb2886e0be755173f2173b3d60ac85cd2f39b4f40266d60890ce8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling proc-macro2 v1.0.23
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]     Checking pin-project-lite v0.1.9
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking async-task v4.0.2
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]    Compiling glam v0.9.5
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking anymap v0.12.1
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling bevy-glsl-to-spirv v0.2.0
[INFO] [stderr]    Compiling libloading v0.6.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.24
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking atom v0.3.5
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling winit v0.23.0
[INFO] [stderr]     Checking ttf-parser v0.8.2
[INFO] [stderr]    Compiling cpal v0.13.0
[INFO] [stderr]     Checking inplace_it v0.3.2
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.3
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking instant v0.1.7
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]    Compiling miniz_oxide v0.4.2
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking hibitset v0.6.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking anyhow v1.0.32
[INFO] [stderr]     Checking async-channel v1.4.2
[INFO] [stderr]     Checking wgpu-types v0.6.1
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling alsa-sys v0.3.0
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking stretch v0.3.2
[INFO] [stderr]     Checking ash v0.31.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking futures-lite v1.8.0
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking owned_ttf_parser v0.8.0
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking ab_glyph v0.2.5
[INFO] [stderr]    Compiling savefile v0.7.4
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking async-executor v1.3.0
[INFO] [stderr]     Checking spirv_headers v1.5.0
[INFO] [stderr]     Checking euclid v0.22.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking filetime v0.2.12
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking slice-deque v0.3.0
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking gfx-hal v0.6.0
[INFO] [stderr]     Checking inotify v0.8.3
[INFO] [stderr]     Checking ahash v0.5.6
[INFO] [stderr]     Checking bevy_tasks v0.3.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]     Checking guillotiere v0.6.0
[INFO] [stderr]     Checking bevy_utils v0.3.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking backtrace v0.3.51
[INFO] [stderr]     Checking image v0.23.10
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.14.9/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=7d996b31ac70de8e -C extra-filename=-7d996b31ac70de8e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-9d3fa0fa146c5d04.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-5a298f090eadd6b8.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-f9d9fe975bfe7d9a.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 `Command { std: "docker" "inspect" "0713f47a760fb2886e0be755173f2173b3d60ac85cd2f39b4f40266d60890ce8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0713f47a760fb2886e0be755173f2173b3d60ac85cd2f39b4f40266d60890ce8", kill_on_drop: false }`
[INFO] [stdout] 0713f47a760fb2886e0be755173f2173b3d60ac85cd2f39b4f40266d60890ce8