[INFO] cloning repository https://github.com/velvetops/conrod_mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/velvetops/conrod_mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvelvetops%2Fconrod_mandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvelvetops%2Fconrod_mandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bbb8ef2e5cfc8fc5c496046a8c5c277b65e28883
[INFO] checking velvetops/conrod_mandelbrot against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvelvetops%2Fconrod_mandelbrot" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/velvetops/conrod_mandelbrot on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/velvetops/conrod_mandelbrot
[INFO] finished tweaking git repo https://github.com/velvetops/conrod_mandelbrot
[INFO] tweaked toml for git repo https://github.com/velvetops/conrod_mandelbrot written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/velvetops/conrod_mandelbrot 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages
[INFO] [stderr]       Adding approx v0.1.1 (latest: v0.5.1)
[INFO] [stderr]       Adding conrod v0.61.1 (latest: v0.62.1)
[INFO] [stderr]       Adding conrod_derive v0.1.2 (latest: v0.76.1)
[INFO] [stderr]       Adding daggy v0.5.0 (latest: v0.8.0)
[INFO] [stderr]       Adding fixedbitset v0.1.9 (latest: v0.5.6)
[INFO] [stderr]       Adding linked-hash-map v0.5.6
[INFO] [stderr]       Adding num v0.1.42 (latest: v0.4.1)
[INFO] [stderr]       Adding num-bigint v0.1.44 (latest: v0.4.4)
[INFO] [stderr]       Adding num-complex v0.1.43 (latest: v0.4.5)
[INFO] [stderr]       Adding petgraph v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding proc-macro2 v0.3.8 (latest: v1.0.79)
[INFO] [stderr]       Adding quote v0.5.2 (latest: v1.0.35)
[INFO] [stderr]       Adding rustc-serialize v0.3.25
[INFO] [stderr]       Adding rusttype v0.5.2 (latest: v0.9.3)
[INFO] [stderr]       Adding syn v0.13.11 (latest: v2.0.58)
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded piston-float v0.3.0
[INFO] [stderr]   Downloaded pistoncore-input v0.21.0
[INFO] [stderr]   Downloaded piston-viewport v0.3.0
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[INFO] [stderr]   Downloaded pistoncore-window v0.32.0
[INFO] [stderr]   Downloaded proc-macro2 v0.4.13
[INFO] [stderr]   Downloaded piston-shaders_graphics2d v0.3.1
[INFO] [stderr]   Downloaded dlib v0.4.1
[INFO] [stderr]   Downloaded read_color v1.0.0
[INFO] [stderr]   Downloaded pistoncore-glutin_window v0.47.0
[INFO] [stderr]   Downloaded gfx_gl v0.5.0
[INFO] [stderr]   Downloaded piston v0.37.0
[INFO] [stderr]   Downloaded memmap v0.6.2
[INFO] [stderr]   Downloaded conrod_derive v0.1.2
[INFO] [stderr]   Downloaded pistoncore-event_loop v0.37.0
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[INFO] [stderr]   Downloaded num-rational v0.1.42
[INFO] [stderr]   Downloaded proc-macro2 v0.3.8
[INFO] [stderr]   Downloaded approx v0.1.1
[INFO] [stderr]   Downloaded parking_lot v0.6.3
[INFO] [stderr]   Downloaded crossbeam-channel v0.2.4
[INFO] [stderr]   Downloaded syn v0.13.11
[INFO] [stderr]   Downloaded derivative v1.0.0
[INFO] [stderr]   Downloaded piston_window v0.80.0
[INFO] [stderr]   Downloaded rayon v1.0.2
[INFO] [stderr]   Downloaded deflate v0.7.18
[INFO] [stderr]   Downloaded conrod v0.61.1
[INFO] [stderr]   Downloaded png v0.12.0
[INFO] [stderr]   Downloaded image v0.19.0
[INFO] [stderr]   Downloaded piston2d-gfx_graphics v0.51.0
[INFO] [stderr]   Downloaded piston2d-graphics v0.26.0
[INFO] [stderr]   Downloaded wayland-protocols v0.12.5
[INFO] [stderr]   Downloaded winit v0.12.0
[INFO] [stderr]   Downloaded x11-dl v2.18.3
[INFO] [stderr]   Downloaded glutin v0.14.0
[INFO] [stderr]   Downloaded itertools v0.5.10
[INFO] [stderr]   Downloaded syn v0.10.8
[INFO] [stderr]   Downloaded rustc-serialize v0.3.25
[INFO] [stderr]   Downloaded rusttype v0.4.3
[INFO] [stderr]   Downloaded gleam v0.6.0
[INFO] [stderr]   Downloaded wayland-kbd v0.13.1
[INFO] [stderr]   Downloaded gfx_device_gl v0.15.3
[INFO] [stderr]   Downloaded gif v0.10.0
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.15
[INFO] [stderr]   Downloaded inflate v0.4.3
[INFO] [stderr]   Downloaded stb_truetype v0.2.2
[INFO] [stderr]   Downloaded vecmath v0.3.1
[INFO] [stderr]   Downloaded cgl v0.2.3
[INFO] [stderr]   Downloaded cocoa v0.14.0
[INFO] [stderr]   Downloaded wayland-client v0.12.5
[INFO] [stderr]   Downloaded num-complex v0.1.43
[INFO] [stderr]   Downloaded crossbeam-deque v0.5.2
[INFO] [stderr]   Downloaded crossbeam v0.4.1
[INFO] [stderr]   Downloaded gfx v0.17.1
[INFO] [stderr]   Downloaded draw_state v0.8.0
[INFO] [stderr]   Downloaded num-derive v0.2.2
[INFO] [stderr]   Downloaded core-graphics v0.13.0
[INFO] [stderr]   Downloaded libloading v0.5.0
[INFO] [stderr]   Downloaded objc v0.2.5
[INFO] [stderr]   Downloaded rusttype v0.5.2
[INFO] [stderr]   Downloaded gfx_core v0.8.2
[INFO] [stderr]   Downloaded wayland-scanner v0.12.5
[INFO] [stderr]   Downloaded wayland-sys v0.12.5
[INFO] [stderr]   Downloaded wayland-window v0.13.3
[INFO] [stderr]   Downloaded tempfile v3.0.3
[INFO] [stderr]   Downloaded interpolation v0.1.0
[INFO] [stderr]   Downloaded gl v0.10.0
[INFO] [stderr]   Downloaded token_store v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e227299a84e6858fcb3680469d660af41397c3e39d005d95ee89146931978c4
[INFO] running `Command { std: "docker" "start" "-a" "7e227299a84e6858fcb3680469d660af41397c3e39d005d95ee89146931978c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e227299a84e6858fcb3680469d660af41397c3e39d005d95ee89146931978c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e227299a84e6858fcb3680469d660af41397c3e39d005d95ee89146931978c4", kill_on_drop: false }`
[INFO] [stdout] 7e227299a84e6858fcb3680469d660af41397c3e39d005d95ee89146931978c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31e41748dec8458dd5c45753a99d24e5a6229dcb0f9dfe5a31e8871f214db75e
[INFO] running `Command { std: "docker" "start" "-a" "31e41748dec8458dd5c45753a99d24e5a6229dcb0f9dfe5a31e8871f214db75e", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.13
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling khronos_api v2.2.0
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling cc v1.0.22
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking byteorder v1.2.4
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling log v0.4.4
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking piston-float v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling serde v1.0.75
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]     Checking piston-viewport v0.3.0
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]     Checking token_store v0.1.2
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling syn v0.10.8
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]     Checking stb_truetype v0.2.2
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]     Checking shader_version v0.3.0
[INFO] [stderr]     Checking tempfile v3.0.3
[INFO] [stderr]     Checking deflate v0.7.18
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking inflate v0.4.3
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling wayland-scanner v0.12.5
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]     Checking gif v0.10.0
[INFO] [stderr]     Checking piston-texture v0.6.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking crossbeam-utils v0.5.0
[INFO] [stderr]     Checking ordered-float v0.5.0
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]    Compiling wayland-client v0.12.5
[INFO] [stderr]    Compiling wayland-protocols v0.12.5
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking rusttype v0.4.3
[INFO] [stderr]    Compiling gfx_gl v0.5.0
[INFO] [stderr]     Checking png v0.12.0
[INFO] [stderr]    Compiling glutin v0.14.0
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]     Checking wayland-sys v0.12.5
[INFO] [stderr]     Checking lock_api v0.1.3
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking vecmath v0.3.1
[INFO] [stderr]     Checking interpolation v0.1.0
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking read_color v1.0.0
[INFO] [stderr]     Checking parking_lot v0.6.3
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stdout] error[E0658]: use of unstable library feature 'libstd_sys_internals': used by the panic! macro
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/num-bigint-0.1.44/src/bigint.rs:41:64
[INFO] [stdout]    |
[INFO] [stdout] 41 | #[cfg_attr(feature = "rustc-serialize", derive(RustcEncodable, RustcDecodable))]
[INFO] [stdout]    |                                                                ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: add `#![feature(libstd_sys_internals)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2024-03-29; consider upgrading it if it is out of date
[INFO] [stdout]    = note: this error originates in the derive macro `RustcDecodable` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking num-bigint v0.2.0
[INFO] [stderr]     Checking piston2d-graphics v0.26.0
[INFO] [stderr]     Checking piston-shaders_graphics2d v0.3.1
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking rusttype v0.5.2
[INFO] [stderr]     Checking crossbeam-channel v0.2.4
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `num-bigint` (lib) due to 2 previous errors; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "31e41748dec8458dd5c45753a99d24e5a6229dcb0f9dfe5a31e8871f214db75e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31e41748dec8458dd5c45753a99d24e5a6229dcb0f9dfe5a31e8871f214db75e", kill_on_drop: false }`
[INFO] [stdout] 31e41748dec8458dd5c45753a99d24e5a6229dcb0f9dfe5a31e8871f214db75e