[INFO] cloning repository https://github.com/Chris-F5/ChessEngine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Chris-F5/ChessEngine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChris-F5%2FChessEngine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChris-F5%2FChessEngine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1dba233593d680dd2dde874b4be7fd4428c44129
[INFO] checking Chris-F5/ChessEngine against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FChris-F5%2FChessEngine" "/workspace/builds/worker-86/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-86/source'...
[INFO] [stderr] done.
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[INFO] validating manifest of git repo https://github.com/Chris-F5/ChessEngine on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Chris-F5/ChessEngine
[INFO] finished tweaking git repo https://github.com/Chris-F5/ChessEngine
[INFO] tweaked toml for git repo https://github.com/Chris-F5/ChessEngine written to /workspace/builds/worker-86/source/Cargo.toml
[INFO] crate git repo https://github.com/Chris-F5/ChessEngine already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded msgbox v0.6.0
[INFO] [stderr]   Downloaded btoi v0.4.2
[INFO] [stderr]   Downloaded shakmaty v0.17.1
[INFO] [stderr]   Downloaded positioned-io-preview v0.3.3
[INFO] [stderr]   Downloaded shakmaty-syzygy v0.14.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 41378e298e5d52453e1ddb3a9f0f84f112811aefc088249438aa85b674f81941
[INFO] running `Command { std: "docker" "start" "-a" "41378e298e5d52453e1ddb3a9f0f84f112811aefc088249438aa85b674f81941", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41378e298e5d52453e1ddb3a9f0f84f112811aefc088249438aa85b674f81941", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41378e298e5d52453e1ddb3a9f0f84f112811aefc088249438aa85b674f81941", kill_on_drop: false }`
[INFO] [stdout] 41378e298e5d52453e1ddb3a9f0f84f112811aefc088249438aa85b674f81941
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 191d68edb2d593069da4b7792922776966e2822e6f97427aee7b02152bb212d5
[INFO] running `Command { std: "docker" "start" "-a" "191d68edb2d593069da4b7792922776966e2822e6f97427aee7b02152bb212d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling strum v0.18.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking futures-sink v0.3.12
[INFO] [stderr]     Checking futures-core v0.3.12
[INFO] [stderr]     Checking futures-io v0.3.12
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling gimli v0.22.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling object v0.21.1
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]    Compiling gio v0.9.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking xml-rs v0.8.3
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling pango v0.9.1
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling gdk-pixbuf v0.9.0
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling cairo-rs v0.9.1
[INFO] [stderr]    Compiling gdk v0.13.2
[INFO] [stderr]    Compiling atk v0.9.0
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]     Checking xi-unicode v0.2.1
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]    Compiling shakmaty v0.17.1
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking mint v0.5.5
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]     Checking claxon v0.4.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking libloading v0.6.5
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]     Checking futures-channel v0.3.12
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.44/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,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=23fd97090e386859 -C extra-filename=-23fd97090e386859 --out-dir /opt/rustwide/target/debug/build/syn-23fd97090e386859 -L dependency=/opt/rustwide/target/debug/deps --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" "191d68edb2d593069da4b7792922776966e2822e6f97427aee7b02152bb212d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "191d68edb2d593069da4b7792922776966e2822e6f97427aee7b02152bb212d5", kill_on_drop: false }`
[INFO] [stdout] 191d68edb2d593069da4b7792922776966e2822e6f97427aee7b02152bb212d5