[INFO] cloning repository https://github.com/frederiksemmel/holomorphic-visualizer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/frederiksemmel/holomorphic-visualizer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrederiksemmel%2Fholomorphic-visualizer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrederiksemmel%2Fholomorphic-visualizer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 765a573e9b2ea05eb174579e4245820e5e697a18
[INFO] testing frederiksemmel/holomorphic-visualizer against beta-2021-09-12 for beta-1.56-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrederiksemmel%2Fholomorphic-visualizer" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/frederiksemmel/holomorphic-visualizer on toolchain beta-2021-09-12
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-12" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/frederiksemmel/holomorphic-visualizer
[INFO] finished tweaking git repo https://github.com/frederiksemmel/holomorphic-visualizer
[INFO] tweaked toml for git repo https://github.com/frederiksemmel/holomorphic-visualizer written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/frederiksemmel/holomorphic-visualizer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-12" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/nannou-org/nannou`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-09-12" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6870d550f0beed2eca1b1dc21c2955e599a150b5dc7824c2d3208ae95090613
[INFO] running `Command { std: "docker" "start" "-a" "f6870d550f0beed2eca1b1dc21c2955e599a150b5dc7824c2d3208ae95090613", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6870d550f0beed2eca1b1dc21c2955e599a150b5dc7824c2d3208ae95090613", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6870d550f0beed2eca1b1dc21c2955e599a150b5dc7824c2d3208ae95090613", kill_on_drop: false }`
[INFO] [stdout] f6870d550f0beed2eca1b1dc21c2955e599a150b5dc7824c2d3208ae95090613
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2021-09-12" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bfe74b4457e6e54d6d2297a1f325a5304095414afd1b2a068f8ef8e6bdcd89e
[INFO] running `Command { std: "docker" "start" "-a" "0bfe74b4457e6e54d6d2297a1f325a5304095414afd1b2a068f8ef8e6bdcd89e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling libloading v0.6.3
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling xdg v2.2.0
[INFO] [stderr]    Compiling atom v0.3.5
[INFO] [stderr]    Compiling either v1.6.0
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling piston-float v0.3.0
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling instant v0.1.6
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling bytemuck v1.3.1
[INFO] [stderr]    Compiling conrod_winit v0.70.0
[INFO] [stderr]    Compiling notosans v0.1.0
[INFO] [stderr]    Compiling find_folder v0.3.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling inflate v0.3.4
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling gif v0.9.2
[INFO] [stderr]    Compiling hibitset v0.6.3
[INFO] [stderr]    Compiling piston-viewport v0.5.0
[INFO] [stderr]    Compiling phf v0.8.0
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling stb_truetype v0.3.1
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling tiff v0.5.0
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling ordered-float v1.1.0
[INFO] [stderr]    Compiling line_drawing v0.7.0
[INFO] [stderr]    Compiling euclid v0.20.14
[INFO] [stderr]    Compiling sid v0.6.1
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling pennereq v0.3.1
[INFO] [stderr]    Compiling num-complex v0.3.0
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]    Compiling png v0.16.7
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling daggy v0.5.0
[INFO] [stderr]    Compiling daggy v0.6.0
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling lyon_geom v0.15.3
[INFO] [stderr]    Compiling dlib v0.4.2
[INFO] [stderr]    Compiling ash v0.31.0
[INFO] [stderr]    Compiling wayland-sys v0.23.6
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling png v0.11.0
[INFO] [stderr]    Compiling lyon_path v0.15.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_roundings'
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/num-bigint-0.3.0/src/biguint.rs:198:10
[INFO] [stdout]     |
[INFO] [stdout] 198 |         .div_ceil(&big_digit::BITS.into())
[INFO] [stdout]     |          ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #88581 <https://github.com/rust-lang/rust/issues/88581> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/num-bigint-0.3.0/src/biguint.rs:198:19
[INFO] [stdout]     |
[INFO] [stdout] 198 |         .div_ceil(&big_digit::BITS.into())
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^ expected `u64`, found reference
[INFO] [stdout]     |
[INFO] [stdout]     = note:   expected type `u64`
[INFO] [stdout]             found reference `&_`
[INFO] [stdout] help: consider removing the borrow
[INFO] [stdout]     |
[INFO] [stdout] 198 -         .div_ceil(&big_digit::BITS.into())
[INFO] [stdout] 198 +         .div_ceil(big_digit::BITS.into())
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_roundings'
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/num-bigint-0.3.0/src/biguint.rs:1700:41
[INFO] [stdout]      |
[INFO] [stdout] 1700 |             let root_scale = extra_bits.div_ceil(&n64);
[INFO] [stdout]      |                                         ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #88581 <https://github.com/rust-lang/rust/issues/88581> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/num-bigint-0.3.0/src/biguint.rs:1700:50
[INFO] [stdout]      |
[INFO] [stdout] 1700 |             let root_scale = extra_bits.div_ceil(&n64);
[INFO] [stdout]      |                                                  ^^^^ expected `u64`, found `&u64`
[INFO] [stdout]      |
[INFO] [stdout] help: consider removing the borrow
[INFO] [stdout]      |
[INFO] [stdout] 1700 -             let root_scale = extra_bits.div_ceil(&n64);
[INFO] [stdout] 1700 +             let root_scale = extra_bits.div_ceil(n64);
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_roundings'
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/num-bigint-0.3.0/src/biguint.rs:2119:10
[INFO] [stdout]      |
[INFO] [stdout] 2119 |         .div_ceil(&u64::from(bits))
[INFO] [stdout]      |          ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #88581 <https://github.com/rust-lang/rust/issues/88581> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/num-bigint-0.3.0/src/biguint.rs:2119:19
[INFO] [stdout]      |
[INFO] [stdout] 2119 |         .div_ceil(&u64::from(bits))
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^ expected `u64`, found `&u64`
[INFO] [stdout]      |
[INFO] [stdout] help: consider removing the borrow
[INFO] [stdout]      |
[INFO] [stdout] 2119 -         .div_ceil(&u64::from(bits))
[INFO] [stdout] 2119 +         .div_ceil(u64::from(bits))
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_roundings'
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/num-bigint-0.3.0/src/biguint.rs:2147:10
[INFO] [stdout]      |
[INFO] [stdout] 2147 |         .div_ceil(&u64::from(bits))
[INFO] [stdout]      |          ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: see issue #88581 <https://github.com/rust-lang/rust/issues/88581> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/num-bigint-0.3.0/src/biguint.rs:2147:19
[INFO] [stdout]      |
[INFO] [stdout] 2147 |         .div_ceil(&u64::from(bits))
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^ expected `u64`, found `&u64`
[INFO] [stdout]      |
[INFO] [stdout] help: consider removing the borrow
[INFO] [stdout]      |
[INFO] [stdout] 2147 -         .div_ceil(&u64::from(bits))
[INFO] [stdout] 2147 +         .div_ceil(u64::from(bits))
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling gfx-hal v0.5.3
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling lyon_algorithms v0.15.1
[INFO] [stderr]    Compiling lyon_tessellation v0.15.9
[INFO] [stderr]    Compiling wayland-client v0.23.6
[INFO] [stderr]    Compiling wayland-protocols v0.23.6
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `num-bigint` due to 9 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0bfe74b4457e6e54d6d2297a1f325a5304095414afd1b2a068f8ef8e6bdcd89e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bfe74b4457e6e54d6d2297a1f325a5304095414afd1b2a068f8ef8e6bdcd89e", kill_on_drop: false }`
[INFO] [stdout] 0bfe74b4457e6e54d6d2297a1f325a5304095414afd1b2a068f8ef8e6bdcd89e