[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] checking werner291/tree-fitting against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwerner291%2Ftree-fitting" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/werner291/tree-fitting 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/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-7/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: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
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[INFO] [stderr]   Downloaded android_glue v0.2.3
[INFO] [stderr]   Downloaded cocoa v0.23.0
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[INFO] [stderr]   Downloaded piston v0.52.1
[INFO] [stderr]   Downloaded rand_distr v0.3.0
[INFO] [stderr]   Downloaded ndarray v0.14.0
[INFO] [stderr]   Downloaded gfx v0.18.2
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[INFO] [stderr]   Downloaded nalgebra v0.24.1
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[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.3
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[INFO] [stderr]   Downloaded piston2d-graphics v0.39.0
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[INFO] [stderr]   Downloaded glutin_egl_sys v0.1.5
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[INFO] [stderr]   Downloaded wayland-protocols v0.28.5
[INFO] [stderr]   Downloaded wayland-commons v0.28.5
[INFO] [stderr]   Downloaded wayland-client v0.28.5
[INFO] [stderr]   Downloaded xml-rs v0.8.3
[INFO] [stderr]   Downloaded winit v0.24.0
[INFO] [stderr]   Downloaded pistoncore-input v1.0.0
[INFO] [stderr]   Downloaded wayland-egl v0.28.5
[INFO] [stderr]   Downloaded glutin_gles2_sys v0.1.5
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] bada59a3b20e4c3b41b69d10703ccbed3e9b9cde0be51a50986f079027bee663
[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" "bada59a3b20e4c3b41b69d10703ccbed3e9b9cde0be51a50986f079027bee663", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bada59a3b20e4c3b41b69d10703ccbed3e9b9cde0be51a50986f079027bee663", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bada59a3b20e4c3b41b69d10703ccbed3e9b9cde0be51a50986f079027bee663", kill_on_drop: false }`
[INFO] [stdout] bada59a3b20e4c3b41b69d10703ccbed3e9b9cde0be51a50986f079027bee663
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 2e25e7d4cbad168a02db664a1503d94e9438e792c17b9a7cdd25e112a627b87e
[INFO] running `Command { std: "docker" "start" "-a" "2e25e7d4cbad168a02db664a1503d94e9438e792c17b9a7cdd25e112a627b87e", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking piston-float v1.0.0
[INFO] [stderr]     Checking ttf-parser v0.6.2
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking once_cell v1.7.0
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.4
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking piston-graphics_api_version v1.0.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking weezl v0.1.4
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking bytemuck v1.5.1
[INFO] [stderr]     Checking piston-texture v0.8.0
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking read_color v1.0.0
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[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling ndarray v0.14.0
[INFO] [stderr]     Checking piston-shaders_graphics2d v0.4.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking libloading v0.7.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking piston-viewport v1.0.0
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[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking shader_version v0.7.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[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
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[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]     Checking gif v0.11.1
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]    Compiling wayland-sys v0.28.5
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking owned_ttf_parser v0.6.0
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling gl_generator v0.13.1
[INFO] [stderr]     Checking rusttype v0.9.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking gfx_core v0.9.2
[INFO] [stderr]     Checking andrew v0.3.1
[INFO] [stderr]     Checking piston2d-graphics v0.39.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling wayland-scanner v0.28.5
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking approx v0.4.0
[INFO] [stderr]     Checking noisy_float v0.1.14
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking memmap2 v0.1.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]    Compiling gl v0.13.0
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling gfx_gl v0.6.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking xcursor v0.3.3
[INFO] [stderr]     Checking simba v0.3.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking gfx v0.18.2
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling wayland-client v0.28.5
[INFO] [stderr]    Compiling wayland-protocols v0.28.5
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.60/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="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=fa7bfcf2924481d7 -C extra-filename=-fa7bfcf2924481d7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-1a6a39c3cd9b115f.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-1be2cecfcfd4ab86.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-accda8c4d770d472.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" "2e25e7d4cbad168a02db664a1503d94e9438e792c17b9a7cdd25e112a627b87e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e25e7d4cbad168a02db664a1503d94e9438e792c17b9a7cdd25e112a627b87e", kill_on_drop: false }`
[INFO] [stdout] 2e25e7d4cbad168a02db664a1503d94e9438e792c17b9a7cdd25e112a627b87e