[INFO] crate mandelbrot-rust 0.1.0 is already in cache
[INFO] checking mandelbrot-rust-0.1.0 against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] extracting crate mandelbrot-rust 0.1.0 into work/builds/worker-4/source
[INFO] validating manifest of crates.io crate mandelbrot-rust 0.1.0 on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mandelbrot-rust 0.1.0
[INFO] finished tweaking crates.io crate mandelbrot-rust 0.1.0
[INFO] tweaked toml for crates.io crate mandelbrot-rust 0.1.0 written to work/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate mandelbrot-rust 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d4e887f67383b8c423c5f56c2c7fffd5f3a2193781ad09efe5997cac54e48add
[INFO] running `"docker" "start" "-a" "d4e887f67383b8c423c5f56c2c7fffd5f3a2193781ad09efe5997cac54e48add"`
[INFO] [stderr]    Compiling rug v1.5.2
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling imgui-sys v0.1.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking x11-dl v2.18.4
[INFO] [stderr]    Compiling glium v0.25.1
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.1.14
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]     Checking wayland-commons v0.21.13
[INFO] [stderr]     Checking glutin_glx_sys v0.1.5
[INFO] [stderr]     Checking wayland-client v0.21.13
[INFO] [stderr]     Checking wayland-protocols v0.21.13
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.6
[INFO] [stderr]     Checking winit v0.19.2
[INFO] [stderr]     Checking glutin v0.21.0
[INFO] [stderr]     Checking imgui v0.1.0
[INFO] [stderr]     Checking imgui-glium-renderer v0.1.0
[INFO] [stderr]     Checking imgui-winit-support v0.1.0
[INFO] [stderr]     Checking mandelbrot-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: the feature `duration_float` has been stable since 1.38.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(duration_float)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `duration_float` has been stable since 1.38.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(duration_float)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 36s
[INFO] running `"docker" "inspect" "d4e887f67383b8c423c5f56c2c7fffd5f3a2193781ad09efe5997cac54e48add"`
[INFO] running `"docker" "rm" "-f" "d4e887f67383b8c423c5f56c2c7fffd5f3a2193781ad09efe5997cac54e48add"`
[INFO] [stdout] d4e887f67383b8c423c5f56c2c7fffd5f3a2193781ad09efe5997cac54e48add