[INFO] cloning repository https://github.com/floriama/mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/floriama/mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffloriama%2Fmandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffloriama%2Fmandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] beda31dcd3337ce992fc99317ad28935cc432890
[INFO] testing floriama/mandelbrot against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffloriama%2Fmandelbrot" "/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/floriama/mandelbrot on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/floriama/mandelbrot
[INFO] finished tweaking git repo https://github.com/floriama/mandelbrot
[INFO] tweaked toml for git repo https://github.com/floriama/mandelbrot written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/floriama/mandelbrot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded phf_generator v0.7.21
[INFO] [stderr]   Downloaded smallvec v0.1.8
[INFO] [stderr]   Downloaded phf v0.7.21
[INFO] [stderr]   Downloaded memmap v0.4.0
[INFO] [stderr]   Downloaded core-foundation-sys v0.2.3
[INFO] [stderr]   Downloaded fs2 v0.2.5
[INFO] [stderr]   Downloaded semver v0.1.20
[INFO] [stderr]   Downloaded khronos_api v1.0.0
[INFO] [stderr]   Downloaded fnv v1.0.5
[INFO] [stderr]   Downloaded gcc v0.3.41
[INFO] [stderr]   Downloaded pkg-config v0.3.8
[INFO] [stderr]   Downloaded wayland-sys v0.7.6
[INFO] [stderr]   Downloaded wayland-client v0.7.6
[INFO] [stderr]   Downloaded itoa v0.1.1
[INFO] [stderr]   Downloaded phf_codegen v0.7.21
[INFO] [stderr]   Downloaded gdi32-sys v0.1.1
[INFO] [stderr]   Downloaded objc v0.2.2
[INFO] [stderr]   Downloaded core-graphics v0.4.2
[INFO] [stderr]   Downloaded log v0.3.6
[INFO] [stderr]   Downloaded rustc-demangle v0.1.3
[INFO] [stderr]   Downloaded cocoa v0.3.3
[INFO] [stderr]   Downloaded byteorder v0.5.3
[INFO] [stderr]   Downloaded android_glue v0.2.1
[INFO] [stderr]   Downloaded rand v0.3.15
[INFO] [stderr]   Downloaded dlib v0.3.1
[INFO] [stderr]   Downloaded user32-sys v0.1.2
[INFO] [stderr]   Downloaded cfg-if v0.1.0
[INFO] [stderr]   Downloaded serde v0.7.15
[INFO] [stderr]   Downloaded core-foundation v0.2.3
[INFO] [stderr]   Downloaded gl_generator v0.5.2
[INFO] [stderr]   Downloaded tempfile v2.1.4
[INFO] [stderr]   Downloaded glutin v0.7.2
[INFO] [stderr]   Downloaded backtrace-sys v0.1.5
[INFO] [stderr]   Downloaded glium v0.16.0
[INFO] [stderr]   Downloaded winit v0.5.7
[INFO] [stderr]   Downloaded gleam v0.2.30
[INFO] [stderr]   Downloaded cgl v0.1.5
[INFO] [stderr]   Downloaded dwmapi-sys v0.1.0
[INFO] [stderr]   Downloaded siphasher v0.2.0
[INFO] [stderr]   Downloaded shared_library v0.1.5
[INFO] [stderr]   Downloaded shell32-sys v0.1.1
[INFO] [stderr]   Downloaded wayland-kbd v0.6.2
[INFO] [stderr]   Downloaded rustc_version v0.1.7
[INFO] [stderr]   Downloaded xml-rs v0.3.5
[INFO] [stderr]   Downloaded wayland-scanner v0.7.6
[INFO] [stderr]   Downloaded phf_shared v0.7.21
[INFO] [stderr]   Downloaded dtoa v0.2.2
[INFO] [stderr]   Downloaded serde v0.8.22
[INFO] [stderr]   Downloaded num-traits v0.1.36
[INFO] [stderr]   Downloaded serde_json v0.8.6
[INFO] [stderr]   Downloaded target_build_utils v0.1.2
[INFO] [stderr]   Downloaded libloading v0.3.1
[INFO] [stderr]   Downloaded libc v0.2.20
[INFO] [stderr]   Downloaded wayland-window v0.4.3
[INFO] [stderr]   Downloaded x11-dl v2.12.0
[INFO] [stderr]   Downloaded lazy_static v0.2.2
[INFO] [stderr]   Downloaded bitflags v0.3.3
[INFO] [stderr]   Downloaded core-graphics v0.3.2
[INFO] [stderr]   Downloaded core-graphics v0.5.0
[INFO] [stderr]   Downloaded cocoa v0.5.3
[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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc4e0668508784b9362ee81c28d012e87ef089a9edac3ed1933db2da4c750f92
[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" "fc4e0668508784b9362ee81c28d012e87ef089a9edac3ed1933db2da4c750f92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc4e0668508784b9362ee81c28d012e87ef089a9edac3ed1933db2da4c750f92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc4e0668508784b9362ee81c28d012e87ef089a9edac3ed1933db2da4c750f92", kill_on_drop: false }`
[INFO] [stdout] fc4e0668508784b9362ee81c28d012e87ef089a9edac3ed1933db2da4c750f92
[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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 465b1d904ea493284760a54b954e1e1c3dff7d320bafc30b4c745f431ab5de3f
[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" "465b1d904ea493284760a54b954e1e1c3dff7d320bafc30b4c745f431ab5de3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.20
[INFO] [stderr]    Compiling siphasher v0.2.0
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling dtoa v0.2.2
[INFO] [stderr]    Compiling serde v0.8.22
[INFO] [stderr]    Compiling itoa v0.1.1
[INFO] [stderr]    Compiling num-traits v0.1.36
[INFO] [stderr]    Compiling lazy_static v0.2.2
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling khronos_api v1.0.0
[INFO] [stderr]    Compiling log v0.3.6
[INFO] [stderr]    Compiling pkg-config v0.3.8
[INFO] [stderr]    Compiling gcc v0.3.41
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]    Compiling cfg-if v0.1.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.3
[INFO] [stderr]    Compiling smallvec v0.1.8
[INFO] [stderr]    Compiling fnv v1.0.5
[INFO] [stderr]    Compiling xml-rs v0.3.5
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]    Compiling phf v0.7.21
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling shared_library v0.1.5
[INFO] [stderr]    Compiling x11-dl v2.12.0
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling tempfile v2.1.4
[INFO] [stderr]    Compiling fs2 v0.2.5
[INFO] [stderr]    Compiling memmap v0.4.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]    Compiling wayland-scanner v0.7.6
[INFO] [stderr]    Compiling gl_generator v0.5.2
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling target_build_utils v0.1.2
[INFO] [stderr]    Compiling wayland-client v0.7.6
[INFO] [stderr]    Compiling glutin v0.7.2
[INFO] [stderr]    Compiling glium v0.16.0
[INFO] [stderr]    Compiling serde_json v0.8.6
[INFO] [stderr]    Compiling libloading v0.3.1
[INFO] [stderr]    Compiling dlib v0.3.1
[INFO] [stderr]    Compiling wayland-sys v0.7.6
[INFO] [stderr]    Compiling wayland-kbd v0.6.2
[INFO] [stderr]    Compiling wayland-window v0.4.3
[INFO] [stderr]    Compiling winit v0.5.7
[INFO] [stderr]    Compiling mandelbrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/mandelbrot-4cff9f1560098497.mandelbrot.5e920e46-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/mandelbrot-4cff9f1560098497.mandelbrot.5e920e46-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/mandelbrot-4cff9f1560098497.mandelbrot.5e920e46-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/mandelbrot-4cff9f1560098497.mandelbrot.5e920e46-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/mandelbrot-4cff9f1560098497.mandelbrot.5e920e46-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/mandelbrot-4cff9f1560098497.mandelbrot.5e920e46-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/mandelbrot-4cff9f1560098497.mandelbrot.5e920e46-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/mandelbrot-4cff9f1560098497.mandelbrot.5e920e46-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/mandelbrot-4cff9f1560098497.mandelbrot.5e920e46-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/mandelbrot-4cff9f1560098497.mandelbrot.5e920e46-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/mandelbrot-4cff9f1560098497.mandelbrot.5e920e46-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/mandelbrot-4cff9f1560098497.mandelbrot.5e920e46-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/mandelbrot-4cff9f1560098497.mandelbrot.5e920e46-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/mandelbrot-4cff9f1560098497.mandelbrot.5e920e46-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/mandelbrot-4cff9f1560098497.mandelbrot.5e920e46-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/mandelbrot-4cff9f1560098497.mandelbrot.5e920e46-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/mandelbrot-4cff9f1560098497.hwo1ymaijsrcwia.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libglium-370e093e53bc76c2.rlib" "/opt/rustwide/target/debug/deps/libglutin-752ccc74174bed5a.rlib" "/opt/rustwide/target/debug/deps/libosmesa_sys-9fca486df37775be.rlib" "/opt/rustwide/target/debug/deps/libwinit-6c37ac1913be1664.rlib" "/opt/rustwide/target/debug/deps/libwayland_window-419050d4908f26a0.rlib" "/opt/rustwide/target/debug/deps/libtempfile-caede816bed55907.rlib" "/opt/rustwide/target/debug/deps/librand-23d6adc0ced427c2.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-1831721e8a68023c.rlib" "/opt/rustwide/target/debug/deps/libwayland_kbd-4110769ff269fdf1.rlib" "/opt/rustwide/target/debug/deps/libmemmap-2321d6dfc8c73af5.rlib" "/opt/rustwide/target/debug/deps/libwayland_client-fca74800d605595a.rlib" "/opt/rustwide/target/debug/deps/libwayland_sys-6518f3d96f93ed0d.rlib" "/opt/rustwide/target/debug/deps/libdlib-a280faa87336a16c.rlib" "/opt/rustwide/target/debug/deps/liblibloading-c0bf6241531dee7f.rlib" "/opt/rustwide/target/debug/deps/libbitflags-80053f417b3b3269.rlib" "/opt/rustwide/target/debug/deps/libx11_dl-9ee2491a759edec0.rlib" "/opt/rustwide/target/debug/deps/libshared_library-f2692e71d1a82098.rlib" "/opt/rustwide/target/debug/deps/libfnv-ed58826af6cf3a1b.rlib" "/opt/rustwide/target/debug/deps/libsmallvec-ef315dbf249d7311.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-c74892eadd7e3dc1.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-ef616af2481f95ca.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-b6b68660676f275d.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-3562bf65d9243e05.rlib" "/opt/rustwide/target/debug/deps/libdbghelp-f8afcf81f7518078.rlib" "/opt/rustwide/target/debug/deps/libwinapi-752b8c6fa8b80860.rlib" "/opt/rustwide/target/debug/deps/libkernel32-eb9071fb75aa08cb.rlib" "/opt/rustwide/target/debug/deps/liblibc-59bb2fb4eeb17f5e.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-f7399d2cd8e24511.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-37fdd654777c296f.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-d883bf2137e9181a.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-22ab8f3db88b586e.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-0167c9242d0931d5.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-361790a1a5505fc5.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-01c2ffe1ecd05a67.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-ec79e29a889fe805.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-001a3456e8a8331b.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-e8f1404290f0f040.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-76f46d0f23360a60.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-baf0bdc5eb131895.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-3a6a4ee6592d9370.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-1cc90d9dd57195f8.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-0e91863ffbec5148.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-69528f2eac185ac9.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-52d5241975807511.rlib" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-9924c22ae1efcf66.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-d1241f7bd234a268.rlib" "-Wl,-Bdynamic" "-ldl" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/ecabaf78506b7a4668d42dc20268c086b93f0fad/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/mandelbrot-4cff9f1560098497" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/libbacktrace-c74892eadd7e3dc1.rlib(backtrace-c74892eadd7e3dc1.backtrace.55f2a9fa-cgu.11.rcgu.o): in function `backtrace::symbolize::libbacktrace::init_state::{{closure}}':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.2.3/src/symbolize/libbacktrace.rs:150: undefined reference to `backtrace_create_state'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libbacktrace-c74892eadd7e3dc1.rlib(backtrace-c74892eadd7e3dc1.backtrace.55f2a9fa-cgu.11.rcgu.o): in function `backtrace::symbolize::libbacktrace::resolve':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.2.3/src/symbolize/libbacktrace.rs:167: undefined reference to `backtrace_pcinfo'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.2.3/src/symbolize/libbacktrace.rs:171: undefined reference to `backtrace_syminfo'
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout]   = help: some `extern` functions couldn't be found; some native libraries may need to be installed or have their path specified
[INFO] [stdout]   = note: use the `-l` flag to specify native libraries to link
[INFO] [stdout]   = note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#cargorustc-link-libkindname)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mandelbrot`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "465b1d904ea493284760a54b954e1e1c3dff7d320bafc30b4c745f431ab5de3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "465b1d904ea493284760a54b954e1e1c3dff7d320bafc30b4c745f431ab5de3f", kill_on_drop: false }`
[INFO] [stdout] 465b1d904ea493284760a54b954e1e1c3dff7d320bafc30b4c745f431ab5de3f