[INFO] cloning repository https://github.com/halship/reversi-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/halship/reversi-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhalship%2Freversi-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhalship%2Freversi-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 039c9a84f0bc5274f555ffec0e139cf6b968cc52
[INFO] checking halship/reversi-rs against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhalship%2Freversi-rs" "/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/halship/reversi-rs on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/halship/reversi-rs
[INFO] finished tweaking git repo https://github.com/halship/reversi-rs
[INFO] tweaked toml for git repo https://github.com/halship/reversi-rs written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/halship/reversi-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded coreaudio-sys v0.2.4
[INFO] [stderr]   Downloaded serde v1.0.111
[INFO] [stderr]   Downloaded gfx_gl v0.6.1
[INFO] [stderr]   Downloaded serde_json v1.0.54
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.19
[INFO] [stderr]   Downloaded gilrs-core v0.2.6
[INFO] [stderr]   Downloaded addr2line v0.12.1
[INFO] [stderr]   Downloaded gilrs v0.7.4
[INFO] [stderr]   Downloaded minimp3 v0.3.5
[INFO] [stderr]   Downloaded serde_derive v1.0.111
[INFO] [stderr]   Downloaded bzip2-sys v0.1.9+1.0.8
[INFO] [stderr]   Downloaded podio v0.1.7
[INFO] [stderr]   Downloaded zip v0.5.5
[INFO] [stderr]   Downloaded libloading v0.6.2
[INFO] [stderr]   Downloaded mint v0.5.5
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a14bfc974e5c78c83ad0d814a456dc9a37185c4f0bac856c6786b4554c900264
[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" "a14bfc974e5c78c83ad0d814a456dc9a37185c4f0bac856c6786b4554c900264", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a14bfc974e5c78c83ad0d814a456dc9a37185c4f0bac856c6786b4554c900264", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a14bfc974e5c78c83ad0d814a456dc9a37185c4f0bac856c6786b4554c900264", kill_on_drop: false }`
[INFO] [stdout] a14bfc974e5c78c83ad0d814a456dc9a37185c4f0bac856c6786b4554c900264
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] fd0e3d61d3416ed3f5535872bd4b618424c6946e5b0f6fdca1c2a1f873f21c32
[INFO] running `Command { std: "docker" "start" "-a" "fd0e3d61d3416ed3f5535872bd4b618424c6946e5b0f6fdca1c2a1f873f21c32", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling gimli v0.21.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling object v0.19.0
[INFO] [stderr]     Checking downcast-rs v1.1.1
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]     Checking xi-unicode v0.2.0
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]     Checking mint v0.5.5
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking claxon v0.4.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling bzip2-sys v0.1.9+1.0.8
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling minimp3-sys v0.3.2
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking arrayvec v0.4.12
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking ogg v0.7.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.19
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]     Checking rand_pcg v0.1.2
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]    Compiling gl_generator v0.13.1
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking lewton v0.9.4
[INFO] [stderr]     Checking gfx_core v0.9.2
[INFO] [stderr]    Compiling addr2line v0.12.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking x11-dl v2.18.5
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking slice-deque v0.3.0
[INFO] [stderr]     Checking nix v0.15.0
[INFO] [stderr]     Checking dirs-sys v0.3.5
[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-integer v0.1.42
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling backtrace v0.3.48
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling gfx_gl v0.6.1
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]     Checking cpal v0.8.2
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.6
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.4
[INFO] [stderr]     Checking sid v0.5.2
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking minimp3 v0.3.5
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking num-iter v0.1.40
[INFO] [stderr]     Checking gfx v0.18.2
[INFO] [stderr]    Compiling wayland-client v0.21.13
[INFO] [stderr]    Compiling wayland-protocols v0.21.13
[INFO] [stderr]     Checking zip v0.5.5
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.54
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking glyph_brush_layout v0.1.9
[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-0.15.44/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=34abf50f0dc42fbc -C extra-filename=-34abf50f0dc42fbc --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-9a0c90a1577b1e86.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-d00a867897b457f6.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-1f05abef37c9dd2c.rmeta --cap-lints allow --cap-lints=forbid --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` (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" "fd0e3d61d3416ed3f5535872bd4b618424c6946e5b0f6fdca1c2a1f873f21c32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd0e3d61d3416ed3f5535872bd4b618424c6946e5b0f6fdca1c2a1f873f21c32", kill_on_drop: false }`
[INFO] [stdout] fd0e3d61d3416ed3f5535872bd4b618424c6946e5b0f6fdca1c2a1f873f21c32