[INFO] cloning repository https://github.com/vsinha/sim-physarum
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vsinha/sim-physarum" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvsinha%2Fsim-physarum", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvsinha%2Fsim-physarum'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0a427c9666f6998b555948c57e095c62fc1ff7dc
[INFO] testing vsinha/sim-physarum against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvsinha%2Fsim-physarum" "/workspace/builds/worker-100/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-100/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vsinha/sim-physarum on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vsinha/sim-physarum
[INFO] finished tweaking git repo https://github.com/vsinha/sim-physarum
[INFO] tweaked toml for git repo https://github.com/vsinha/sim-physarum written to /workspace/builds/worker-100/source/Cargo.toml
[INFO] crate git repo https://github.com/vsinha/sim-physarum already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded andrew v0.2.0
[INFO] [stderr]   Downloaded matrixmultiply v0.2.2
[INFO] [stderr]   Downloaded smithay-client-toolkit v0.4.5
[INFO] [stderr]   Downloaded gfx_window_glutin v0.29.0
[INFO] [stderr]   Downloaded gfx_core v0.9.0
[INFO] [stderr]   Downloaded gfx v0.18.0
[INFO] [stderr]   Downloaded gleam v0.6.13
[INFO] [stderr]   Downloaded nalgebra v0.17.2
[INFO] [stderr]   Downloaded lyon_geom v0.12.4
[INFO] [stderr]   Downloaded gfx_device_gl v0.16.0
[INFO] [stderr]   Downloaded lyon_algorithms v0.13.1
[INFO] [stderr]   Downloaded euclid v0.19.6
[INFO] [stderr]   Downloaded glyph_brush v0.2.4
[INFO] [stderr]   Downloaded lyon_tessellation v0.13.1
[INFO] [stderr]   Downloaded lyon v0.13.1
[INFO] [stderr]   Downloaded lyon_path v0.13.1
[INFO] [stderr]   Downloaded gilrs v0.6.3
[INFO] [stderr]   Downloaded zip v0.5.1
[INFO] [stderr]   Downloaded seahash v3.0.6
[INFO] [stderr]   Downloaded ggez v0.5.0-rc.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa28f7a7cee95ddf877553cef583d8462962325f5fe026a5ea9cd924f7eb4437
[INFO] running `Command { std: "docker" "start" "-a" "aa28f7a7cee95ddf877553cef583d8462962325f5fe026a5ea9cd924f7eb4437", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa28f7a7cee95ddf877553cef583d8462962325f5fe026a5ea9cd924f7eb4437", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa28f7a7cee95ddf877553cef583d8462962325f5fe026a5ea9cd924f7eb4437", kill_on_drop: false }`
[INFO] [stdout] aa28f7a7cee95ddf877553cef583d8462962325f5fe026a5ea9cd924f7eb4437
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31a955bb87a1008fa13cae2e497135dcff477bac6bacc71d2435502b0324fbf5
[INFO] running `Command { std: "docker" "start" "-a" "31a955bb87a1008fa13cae2e497135dcff477bac6bacc71d2435502b0324fbf5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]    Compiling cc v1.0.31
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling same-file v1.0.4
[INFO] [stderr]    Compiling nix v0.12.0
[INFO] [stderr]    Compiling khronos_api v2.2.0
[INFO] [stderr]    Compiling linked-hash-map v0.5.1
[INFO] [stderr]    Compiling khronos_api v3.0.0
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling downcast-rs v1.0.3
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.13
[INFO] [stderr]    Compiling xdg v2.2.0
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling adler32 v1.0.3
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling mint v0.5.1
[INFO] [stderr]    Compiling xi-unicode v0.1.0
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling color_quant v1.0.1
[INFO] [stderr]    Compiling approx v0.1.1
[INFO] [stderr]    Compiling libm v0.1.2
[INFO] [stderr]    Compiling podio v0.1.6
[INFO] [stderr]    Compiling safe-transmute v0.10.1
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling hound v3.4.0
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling seahash v3.0.6
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[INFO] [stderr]    Compiling stb_truetype v0.2.6
[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]    Compiling rustc-hash v1.0.1
[INFO] [stderr]    Compiling num-traits v0.1.43
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[INFO] [stderr]    Compiling ogg v0.7.0
[INFO] [stderr]    Compiling generic-array v0.12.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling hashbrown v0.1.8
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.3
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling deflate v0.7.19
[INFO] [stderr]    Compiling matrixmultiply v0.2.2
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling draw_state v0.8.0
[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]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling owning_ref v0.4.0
[INFO] [stderr]    Compiling gif v0.10.1
[INFO] [stderr]    Compiling app_dirs2 v2.0.3
[INFO] [stderr]    Compiling wayland-scanner v0.21.11
[INFO] [stderr]    Compiling sid v0.5.2
[INFO] [stderr]    Compiling walkdir v2.2.7
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling minimp3-sys v0.3.1
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling slice-deque v0.1.16
[INFO] [stderr]    Compiling lewton v0.9.4
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling alga v0.8.2
[INFO] [stderr]    Compiling cpal v0.8.2
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling png v0.14.0
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling minimp3 v0.3.2
[INFO] [stderr]    Compiling cgmath v0.14.1
[INFO] [stderr]    Compiling glutin v0.19.0
[INFO] [stderr]    Compiling rusttype v0.7.5
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]    Compiling wayland-sys v0.21.11
[INFO] [stderr]    Compiling wayland-client v0.21.11
[INFO] [stderr]    Compiling wayland-protocols v0.21.11
[INFO] [stderr]    Compiling zip v0.5.1
[INFO] [stderr]    Compiling nalgebra v0.17.2
[INFO] [stderr]    Compiling andrew v0.2.0
[INFO] [stderr]    Compiling glyph_brush_layout v0.1.5
[INFO] [stderr]    Compiling gfx_gl v0.5.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling error-chain v0.12.0
[INFO] [stderr]    Compiling glyph_brush v0.2.4
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.29/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=90bd1fbf7be1d21f -C extra-filename=-90bd1fbf7be1d21f --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-baee35fcf6990606.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-7fede1f35392dd7a.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-2f6444d33d391550.rmeta --cap-lints allow --cap-lints=warn --cfg syn_can_use_thread_id --cfg syn_can_call_macro_by_path` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0502]: cannot borrow `*self` as immutable because it is also borrowed as mutable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nalgebra-0.17.2/src/base/cg.rs:297:44
[INFO] [stdout]     |
[INFO] [stdout] 297 |                 self[(j, i)] += shift[j] * self[(D::dim() - 1, i)];
[INFO] [stdout]     |                 ---------------------------^^^^-------------------
[INFO] [stdout]     |                 |                          |
[INFO] [stdout]     |                 |                          immutable borrow occurs here
[INFO] [stdout]     |                 mutable borrow occurs here
[INFO] [stdout]     |                 mutable borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "31a955bb87a1008fa13cae2e497135dcff477bac6bacc71d2435502b0324fbf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31a955bb87a1008fa13cae2e497135dcff477bac6bacc71d2435502b0324fbf5", kill_on_drop: false }`
[INFO] [stdout] 31a955bb87a1008fa13cae2e497135dcff477bac6bacc71d2435502b0324fbf5