[INFO] cloning repository https://github.com/voetsjoeba/nonogram-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/voetsjoeba/nonogram-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvoetsjoeba%2Fnonogram-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvoetsjoeba%2Fnonogram-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b2cbd9ece2764f709469976fd100d98b0250ed67
[INFO] checking voetsjoeba/nonogram-rs against try#1b0139f5bdae7328e6d232947a8112333bb44eeb for pr-93394
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvoetsjoeba%2Fnonogram-rs" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/voetsjoeba/nonogram-rs on toolchain 1b0139f5bdae7328e6d232947a8112333bb44eeb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1b0139f5bdae7328e6d232947a8112333bb44eeb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/voetsjoeba/nonogram-rs
[INFO] finished tweaking git repo https://github.com/voetsjoeba/nonogram-rs
[INFO] tweaked toml for git repo https://github.com/voetsjoeba/nonogram-rs written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/voetsjoeba/nonogram-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1b0139f5bdae7328e6d232947a8112333bb44eeb" "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 pistoncore-glutin_window v0.63.0
[INFO] [stderr]   Downloaded pistoncore-input v0.28.0
[INFO] [stderr]   Downloaded gl v0.11.0
[INFO] [stderr]   Downloaded pistoncore-window v0.44.0
[INFO] [stderr]   Downloaded shader_version v0.6.0
[INFO] [stderr]   Downloaded piston2d-graphics v0.35.0
[INFO] [stderr]   Downloaded pistoncore-event_loop v0.49.0
[INFO] [stderr]   Downloaded piston v0.49.0
[INFO] [stderr]   Downloaded piston-graphics_api_version v0.2.0
[INFO] [stderr]   Downloaded piston2d-opengl_graphics v0.70.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1b0139f5bdae7328e6d232947a8112333bb44eeb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6175c6786cc998bcf83a7419d0116deea04964e68d24fd0ef62e672fbaca15d6
[INFO] running `Command { std: "docker" "start" "-a" "6175c6786cc998bcf83a7419d0116deea04964e68d24fd0ef62e672fbaca15d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6175c6786cc998bcf83a7419d0116deea04964e68d24fd0ef62e672fbaca15d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6175c6786cc998bcf83a7419d0116deea04964e68d24fd0ef62e672fbaca15d6", kill_on_drop: false }`
[INFO] [stdout] 6175c6786cc998bcf83a7419d0116deea04964e68d24fd0ef62e672fbaca15d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1b0139f5bdae7328e6d232947a8112333bb44eeb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ccd9d7eadf6f1214db82d5a21e71745d9ee571de2134dcfabcdd5df32b2f78c
[INFO] running `Command { std: "docker" "start" "-a" "1ccd9d7eadf6f1214db82d5a21e71745d9ee571de2134dcfabcdd5df32b2f78c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking piston-float v1.0.0
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]    Compiling syn v1.0.7
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]     Checking downcast-rs v1.1.1
[INFO] [stderr]     Checking piston-graphics_api_version v0.2.0
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]     Checking smallvec v0.6.12
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking piston-texture v0.8.0
[INFO] [stderr]     Checking interpolation v0.2.0
[INFO] [stderr]     Checking read_color v1.0.0
[INFO] [stderr]     Checking piston-shaders_graphics2d v0.3.1
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]    Compiling log v0.4.8
[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 memmap v0.7.0
[INFO] [stderr]     Checking raw-window-handle v0.3.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking fern v0.6.0
[INFO] [stderr]     Checking piston-viewport v1.0.0
[INFO] [stderr]     Checking vecmath v1.0.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking inflate v0.4.5
[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,artifacts,future-incompat --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="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=f74dbce996951169 -C extra-filename=-f74dbce996951169 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-74cf65b213176c4b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-520fec877571f6ee.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-17df5e5ca0bb5bda.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` (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" "1ccd9d7eadf6f1214db82d5a21e71745d9ee571de2134dcfabcdd5df32b2f78c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ccd9d7eadf6f1214db82d5a21e71745d9ee571de2134dcfabcdd5df32b2f78c", kill_on_drop: false }`
[INFO] [stdout] 1ccd9d7eadf6f1214db82d5a21e71745d9ee571de2134dcfabcdd5df32b2f78c