[INFO] updating cached repository https://github.com/mmiecz/chip8-rust [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] e1a108b4c2d523484451138cea2b06efdf2fb3ef [INFO] testing mmiecz/chip8-rust against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmiecz%2Fchip8-rust" "/workspace/builds/worker-14/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mmiecz/chip8-rust on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/mmiecz/chip8-rust [INFO] finished tweaking git repo https://github.com/mmiecz/chip8-rust [INFO] tweaked toml for git repo https://github.com/mmiecz/chip8-rust written to /workspace/builds/worker-14/source/Cargo.toml [INFO] crate git repo https://github.com/mmiecz/chip8-rust already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] f94073f24a4ad651c6e9802034245eab78b30622234e782e44dd122f03f39631 [INFO] running `"docker" "start" "-a" "f94073f24a4ad651c6e9802034245eab78b30622234e782e44dd122f03f39631"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling phf_shared v0.7.20 [INFO] [stderr] Compiling serde v0.8.22 [INFO] [stderr] Compiling khronos_api v1.0.0 [INFO] [stderr] Compiling gcc v0.3.41 [INFO] [stderr] Compiling rustc-demangle v0.1.3 [INFO] [stderr] Compiling fnv v1.0.5 [INFO] [stderr] Compiling smallvec v0.1.8 [INFO] [stderr] Compiling xml-rs v0.3.5 [INFO] [stderr] Compiling x11-dl v2.12.0 [INFO] [stderr] Compiling shared_library v0.1.5 [INFO] [stderr] Compiling tempfile v2.1.4 [INFO] [stderr] Compiling fs2 v0.2.5 [INFO] [stderr] Compiling phf_generator v0.7.20 [INFO] [stderr] Compiling phf v0.7.20 [INFO] [stderr] Compiling memmap v0.4.0 [INFO] [stderr] Compiling osmesa-sys v0.1.2 [INFO] [stderr] Compiling phf_codegen v0.7.20 [INFO] [stderr] Compiling target_build_utils v0.1.2 [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 backtrace v0.2.3 [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 v0.8.4 [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-window v0.4.3 [INFO] [stderr] Compiling wayland-kbd v0.6.2 [INFO] [stderr] Compiling winit v0.5.7 [INFO] [stderr] Compiling chip8-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/mem.rs:48:21 [INFO] [stderr] | [INFO] [stderr] 48 | let mut f = try!(File::open(path)); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/mem.rs:50:9 [INFO] [stderr] | [INFO] [stderr] 50 | try!(f.read_to_end(&mut buffer)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: the item `rand` is imported redundantly [INFO] [stderr] --> src/cpu.rs:423:13 [INFO] [stderr] | [INFO] [stderr] 423 | use rand; [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] ::: src/main.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | extern crate rand; [INFO] [stderr] | ------------------ the item `rand` is already imported here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `glium::glutin::VirtualKeyCode` [INFO] [stderr] --> src/cpu.rs:446:13 [INFO] [stderr] | [INFO] [stderr] 446 | use glium::glutin::VirtualKeyCode; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `glium::glutin::VirtualKeyCode` [INFO] [stderr] --> src/cpu.rs:455:13 [INFO] [stderr] | [INFO] [stderr] 455 | use glium::glutin::VirtualKeyCode; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `glium::DisplayBuild` [INFO] [stderr] --> src/input.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use glium::DisplayBuild; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::thread` [INFO] [stderr] --> src/input.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::thread; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::time` [INFO] [stderr] --> src/input.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::time; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `glium::glutin` [INFO] [stderr] --> src/display.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use glium::glutin; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::path::Path` [INFO] [stderr] --> src/display.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::path::Path; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fs::File` [INFO] [stderr] --> src/display.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::fs::File; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `CpuError`, `Cpu`, `DecoderError` [INFO] [stderr] --> src/main.rs:9:11 [INFO] [stderr] | [INFO] [stderr] 9 | use cpu::{Cpu, DecoderError, CpuError}; [INFO] [stderr] | ^^^ ^^^^^^^^^^^^ ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Event`, `VirtualKeyCode` [INFO] [stderr] --> src/main.rs:10:21 [INFO] [stderr] | [INFO] [stderr] 10 | use glium::glutin::{VirtualKeyCode, Event}; [INFO] [stderr] | ^^^^^^^^^^^^^^ ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/cpu.rs:264:9 [INFO] [stderr] | [INFO] [stderr] 263 | unimplemented!(); [INFO] [stderr] | ----------------- any code following this expression is unreachable [INFO] [stderr] 264 | "cls".to_string() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/cpu.rs:480:9 [INFO] [stderr] | [INFO] [stderr] 479 | panic!("Not implemented wait_for_keypress"); [INFO] [stderr] | -------------------------------------------- any code following this expression is unreachable [INFO] [stderr] 480 | format!("wkp {:#x}", self.regs.v[reg]) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused variable: `what` [INFO] [stderr] --> src/cpu.rs:75:17 [INFO] [stderr] | [INFO] [stderr] 75 | Err(what) => Err(CpuError::DecoderError) [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_what` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `placeholder_display` [INFO] [stderr] --> src/cpu.rs:262:23 [INFO] [stderr] | [INFO] [stderr] 262 | fn cls(&mut self, placeholder_display : u8 ) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_placeholder_display` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `reg` [INFO] [stderr] --> src/cpu.rs:478:37 [INFO] [stderr] | [INFO] [stderr] 478 | fn wait_for_keypress(&mut self, reg: usize) -> String { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_reg` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `title` [INFO] [stderr] --> src/display.rs:30:39 [INFO] [stderr] | [INFO] [stderr] 30 | pub fn new(dimension: (u32, u32), title: &str) -> Result { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_title` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/display.rs:99:13 [INFO] [stderr] | [INFO] [stderr] 99 | let mut collision = false; [INFO] [stderr] | ----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `is_closing` [INFO] [stderr] --> src/input.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | is_closing : bool, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `InvalidDimensionError` [INFO] [stderr] --> src/display.rs:17:5 [INFO] [stderr] | [INFO] [stderr] 17 | InvalidDimensionError, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: linking with `cc` failed: exit code: 1 [INFO] [stderr] | [INFO] [stderr] = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/chip8_rust-67512bb63056eb13.chip8_rust.a9e97trg-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/chip8_rust-67512bb63056eb13.chip8_rust.a9e97trg-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/chip8_rust-67512bb63056eb13.chip8_rust.a9e97trg-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/chip8_rust-67512bb63056eb13.chip8_rust.a9e97trg-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/chip8_rust-67512bb63056eb13.chip8_rust.a9e97trg-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/chip8_rust-67512bb63056eb13.chip8_rust.a9e97trg-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/chip8_rust-67512bb63056eb13.chip8_rust.a9e97trg-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/chip8_rust-67512bb63056eb13.chip8_rust.a9e97trg-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/chip8_rust-67512bb63056eb13.chip8_rust.a9e97trg-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/chip8_rust-67512bb63056eb13.chip8_rust.a9e97trg-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/chip8_rust-67512bb63056eb13.chip8_rust.a9e97trg-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/chip8_rust-67512bb63056eb13.chip8_rust.a9e97trg-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/chip8_rust-67512bb63056eb13.chip8_rust.a9e97trg-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/chip8_rust-67512bb63056eb13.chip8_rust.a9e97trg-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/chip8_rust-67512bb63056eb13.chip8_rust.a9e97trg-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/chip8_rust-67512bb63056eb13.chip8_rust.a9e97trg-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/chip8_rust-67512bb63056eb13" "/opt/rustwide/target/debug/deps/chip8_rust-67512bb63056eb13.28hqf9vlhasen7bz.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libglium-a4a169f3faa65a27.rlib" "/opt/rustwide/target/debug/deps/libglutin-896a5b08aa8b865a.rlib" "/opt/rustwide/target/debug/deps/libosmesa_sys-cfe2bd09b54991cf.rlib" "/opt/rustwide/target/debug/deps/libwinit-dd4fb2003083d755.rlib" "/opt/rustwide/target/debug/deps/libwayland_window-e4efd94f2db6a499.rlib" "/opt/rustwide/target/debug/deps/libtempfile-9670420e28074b42.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-df12a759a99edaf3.rlib" "/opt/rustwide/target/debug/deps/libwayland_kbd-65313c614384ce14.rlib" "/opt/rustwide/target/debug/deps/libmemmap-c6dfdbf62475212b.rlib" "/opt/rustwide/target/debug/deps/libwayland_client-1d3047ff106e192c.rlib" "/opt/rustwide/target/debug/deps/libwayland_sys-3bac6f7f67dedf70.rlib" "/opt/rustwide/target/debug/deps/libdlib-0471eeb7d7a806d4.rlib" "/opt/rustwide/target/debug/deps/liblibloading-b8c77ea89f7a2b81.rlib" "/opt/rustwide/target/debug/deps/libbitflags-2106c394414ab29b.rlib" "/opt/rustwide/target/debug/deps/libx11_dl-b11002e98ef5a86a.rlib" "/opt/rustwide/target/debug/deps/libshared_library-e15fd6bb8e040e72.rlib" "/opt/rustwide/target/debug/deps/libfnv-bb1dbd842c54674b.rlib" "/opt/rustwide/target/debug/deps/libsmallvec-a96ac49ad517fc26.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-c0eb0e038f6127ac.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-f467002f3c6dfa50.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-637630847693b450.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-4ce6be6b55674710.rlib" "/opt/rustwide/target/debug/deps/libdbghelp-6fc59348d4f477c3.rlib" "/opt/rustwide/target/debug/deps/libwinapi-0038aeeed11d463c.rlib" "/opt/rustwide/target/debug/deps/libkernel32-c8bbbe70f11db917.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-384dcc042ab28d9c.rlib" "/opt/rustwide/target/debug/deps/librand-82fc0bcf1ee9fe04.rlib" "/opt/rustwide/target/debug/deps/liblibc-eee57b462b2ab93f.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-44f8eb3d0b2fad61.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-abc626f09920d361.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-546e83c8973f1a65.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-12768dfc68674934.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-e06867e4497f2ee8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-cbc579f43f6df57b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-7abd6d5a7ebf9a23.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-46423c7bc03bd327.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-fc3773ed7bc68f07.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-9cdc98176efd27e2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-02d88502a763e06b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-8cdc9d38dd6cd3ce.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-336f7d63e72901ef.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-57917b1be5233117.rlib" "-Wl,-Bdynamic" "-ldl" "-ldl" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil" [INFO] [stderr] = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/libbacktrace-c0eb0e038f6127ac.rlib(backtrace-c0eb0e038f6127ac.backtrace.10q9529k-cgu.12.rcgu.o): in function `backtrace::symbolize::libbacktrace::init_state::{{closure}}': [INFO] [stderr] /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] [stderr] /usr/bin/ld: /opt/rustwide/target/debug/deps/libbacktrace-c0eb0e038f6127ac.rlib(backtrace-c0eb0e038f6127ac.backtrace.10q9529k-cgu.12.rcgu.o): in function `backtrace::symbolize::libbacktrace::resolve': [INFO] [stderr] /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.2.3/src/symbolize/libbacktrace.rs:167: undefined reference to `backtrace_pcinfo' [INFO] [stderr] /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] [stderr] collect2: error: ld returned 1 exit status [INFO] [stderr] [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error; 22 warnings emitted [INFO] [stderr] [INFO] [stderr] error: could not compile `chip8-rust`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "f94073f24a4ad651c6e9802034245eab78b30622234e782e44dd122f03f39631"` [INFO] running `"docker" "rm" "-f" "f94073f24a4ad651c6e9802034245eab78b30622234e782e44dd122f03f39631"` [INFO] [stdout] f94073f24a4ad651c6e9802034245eab78b30622234e782e44dd122f03f39631