[INFO] cloning repository https://github.com/werner291/tree-fitting
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/werner291/tree-fitting" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwerner291%2Ftree-fitting", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwerner291%2Ftree-fitting'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2f49e6f36e2aba523bbc4678872a5ac23b44ddd5
[INFO] testing werner291/tree-fitting against 1.75.0 for beta-1.76-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwerner291%2Ftree-fitting" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/werner291/tree-fitting on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/werner291/tree-fitting
[INFO] finished tweaking git repo https://github.com/werner291/tree-fitting
[INFO] tweaked toml for git repo https://github.com/werner291/tree-fitting written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/werner291/tree-fitting already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded matrixmultiply v0.2.4
[INFO] [stderr]   Downloaded interpolation v0.2.0
[INFO] [stderr]   Downloaded pistoncore-event_loop v0.52.0
[INFO] [stderr]   Downloaded piston-texture v0.8.0
[INFO] [stderr]   Downloaded paste v1.0.4
[INFO] [stderr]   Downloaded gfx_gl v0.6.1
[INFO] [stderr]   Downloaded draw_state v0.8.0
[INFO] [stderr]   Downloaded gl v0.13.0
[INFO] [stderr]   Downloaded glutin_egl_sys v0.1.5
[INFO] [stderr]   Downloaded glutin_emscripten_sys v0.1.1
[INFO] [stderr]   Downloaded vecmath v1.0.0
[INFO] [stderr]   Downloaded piston v0.52.1
[INFO] [stderr]   Downloaded ndarray-stats v0.4.0
[INFO] [stderr]   Downloaded ndarray v0.14.0
[INFO] [stderr]   Downloaded smithay-client-toolkit v0.12.2
[INFO] [stderr]   Downloaded image v0.23.13
[INFO] [stderr]   Downloaded nalgebra v0.24.1
[INFO] [stderr]   Downloaded glutin v0.26.0
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.68.0
[INFO] [stderr]   Downloaded image v0.19.0
[INFO] [stderr]   Downloaded gfx v0.18.2
[INFO] [stderr]   Downloaded gl_generator v0.13.1
[INFO] [stderr]   Downloaded simba v0.3.1
[INFO] [stderr]   Downloaded gfx_device_gl v0.16.2
[INFO] [stderr]   Downloaded gfx_core v0.9.2
[INFO] [stderr]   Downloaded gif v0.11.1
[INFO] [stderr]   Downloaded cocoa v0.23.0
[INFO] [stderr]   Downloaded superpixel v0.1.1
[INFO] [stderr]   Downloaded once_cell v1.7.0
[INFO] [stderr]   Downloaded piston2d-graphics v0.39.0
[INFO] [stderr]   Downloaded png v0.12.0
[INFO] [stderr]   Downloaded piston2d-gfx_graphics v0.72.0
[INFO] [stderr]   Downloaded noisy_float v0.1.14
[INFO] [stderr]   Downloaded glutin_glx_sys v0.1.7
[INFO] [stderr]   Downloaded wayland-egl v0.28.5
[INFO] [stderr]   Downloaded piston-float v1.0.0
[INFO] [stderr]   Downloaded piston-viewport v1.0.0
[INFO] [stderr]   Downloaded pistoncore-input v1.0.0
[INFO] [stderr]   Downloaded pistoncore-window v0.47.0
[INFO] [stderr]   Downloaded shader_version v0.7.0
[INFO] [stderr]   Downloaded num-derive v0.2.5
[INFO] [stderr]   Downloaded piston-graphics_api_version v1.0.0
[INFO] [stderr]   Downloaded piston-shaders_graphics2d v0.4.0
[INFO] [stderr]   Downloaded piston-gfx_texture v0.41.0
[INFO] [stderr]   Downloaded rand_distr v0.3.0
[INFO] [stderr]   Downloaded piston_window v0.117.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ea49776231a5d839a616ef8dd4730e04d506f40c976c5756df28b278967c47c
[INFO] running `Command { std: "docker" "start" "-a" "5ea49776231a5d839a616ef8dd4730e04d506f40c976c5756df28b278967c47c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ea49776231a5d839a616ef8dd4730e04d506f40c976c5756df28b278967c47c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ea49776231a5d839a616ef8dd4730e04d506f40c976c5756df28b278967c47c", kill_on_drop: false }`
[INFO] [stdout] 5ea49776231a5d839a616ef8dd4730e04d506f40c976c5756df28b278967c47c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 734ce2b19b27edb59637af18a9a72efe16eb3a7137b0461c2c221302db68e489
[INFO] running `Command { std: "docker" "start" "-a" "734ce2b19b27edb59637af18a9a72efe16eb3a7137b0461c2c221302db68e489", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling libloading v0.7.0
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling once_cell v1.7.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling ttf-parser v0.6.2
[INFO] [stderr]    Compiling piston-float v1.0.0
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling ab_glyph_rasterizer v0.1.4
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling wayland-sys v0.28.5
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling piston-viewport v1.0.0
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling wayland-scanner v0.28.5
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.3
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling piston-graphics_api_version v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling owned_ttf_parser v0.6.0
[INFO] [stderr]    Compiling rusttype v0.9.2
[INFO] [stderr]    Compiling draw_state v0.8.0
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling xdg v2.2.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling wayland-client v0.28.5
[INFO] [stderr]    Compiling wayland-protocols v0.28.5
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling xcursor v0.3.3
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling weezl v0.1.4
[INFO] [stderr]    Compiling andrew v0.3.1
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling memmap2 v0.1.0
[INFO] [stderr]    Compiling dlib v0.4.2
[INFO] [stderr]    Compiling gfx_core v0.9.2
[INFO] [stderr]    Compiling wayland-commons v0.28.5
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/syn-1.0.60/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 --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=e6d18072bd7f1d95 -C extra-filename=-e6d18072bd7f1d95 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-f9978c0dfe462258.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-3ae71f645b732643.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-8b1902d8f4db6927.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "734ce2b19b27edb59637af18a9a72efe16eb3a7137b0461c2c221302db68e489", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "734ce2b19b27edb59637af18a9a72efe16eb3a7137b0461c2c221302db68e489", kill_on_drop: false }`
[INFO] [stdout] 734ce2b19b27edb59637af18a9a72efe16eb3a7137b0461c2c221302db68e489
