[INFO] updating cached repository mmiecz/chip8-rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/mmiecz/chip8-rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/mmiecz/chip8-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/mmiecz/chip8-rust"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mmiecz/chip8-rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/mmiecz/chip8-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mmiecz/chip8-rust"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mmiecz/chip8-rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] e1a108b4c2d523484451138cea2b06efdf2fb3ef [INFO] sha for GitHub repo mmiecz/chip8-rust: e1a108b4c2d523484451138cea2b06efdf2fb3ef [INFO] validating manifest of mmiecz/chip8-rust on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of mmiecz/chip8-rust on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing mmiecz/chip8-rust [INFO] finished frobbing mmiecz/chip8-rust [INFO] frobbed toml for mmiecz/chip8-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/mmiecz/chip8-rust/Cargo.toml [INFO] started frobbing mmiecz/chip8-rust [INFO] finished frobbing mmiecz/chip8-rust [INFO] frobbed toml for mmiecz/chip8-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mmiecz/chip8-rust/Cargo.toml [INFO] crate mmiecz/chip8-rust already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing mmiecz/chip8-rust against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mmiecz/chip8-rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"` [INFO] [stdout] 2650b5c3cc88b00769b31b75b66756bd825482160e8e6e3cd16fe90415d389dd [INFO] running `"docker" "start" "-a" "2650b5c3cc88b00769b31b75b66756bd825482160e8e6e3cd16fe90415d389dd"` [INFO] [stderr] Compiling x11-dl v2.12.0 [INFO] [stderr] Compiling backtrace-sys v0.1.5 [INFO] [stderr] Compiling shared_library v0.1.5 [INFO] [stderr] Compiling phf_generator v0.7.20 [INFO] [stderr] Compiling wayland-scanner v0.7.6 [INFO] [stderr] Compiling fs2 v0.2.5 [INFO] [stderr] Compiling glutin v0.7.2 [INFO] [stderr] Compiling glium v0.16.0 [INFO] [stderr] Compiling tempfile v2.1.4 [INFO] [stderr] Compiling phf_codegen v0.7.20 [INFO] [stderr] Compiling memmap v0.4.0 [INFO] [stderr] Compiling target_build_utils v0.1.2 [INFO] [stderr] Compiling osmesa-sys v0.1.2 [INFO] [stderr] Compiling backtrace v0.2.3 [INFO] [stderr] Compiling wayland-client v0.7.6 [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 chip8-rust v0.1.0 (/opt/crater/workdir) [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] 264 | "cls".to_string() [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [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] 480 | format!("wkp {:#x}", self.regs.v[reg]) [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-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: consider prefixing 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: consider prefixing 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: consider prefixing 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: consider prefixing 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 used: `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/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/chip8_rust-100de6c53386b7f3.chip8_rust.9w2b3zdu-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/chip8_rust-100de6c53386b7f3.chip8_rust.9w2b3zdu-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/chip8_rust-100de6c53386b7f3.chip8_rust.9w2b3zdu-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/chip8_rust-100de6c53386b7f3.chip8_rust.9w2b3zdu-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/chip8_rust-100de6c53386b7f3.chip8_rust.9w2b3zdu-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/chip8_rust-100de6c53386b7f3.chip8_rust.9w2b3zdu-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/chip8_rust-100de6c53386b7f3.chip8_rust.9w2b3zdu-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/chip8_rust-100de6c53386b7f3.chip8_rust.9w2b3zdu-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/chip8_rust-100de6c53386b7f3.chip8_rust.9w2b3zdu-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/chip8_rust-100de6c53386b7f3.chip8_rust.9w2b3zdu-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/chip8_rust-100de6c53386b7f3.chip8_rust.9w2b3zdu-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/chip8_rust-100de6c53386b7f3.chip8_rust.9w2b3zdu-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/chip8_rust-100de6c53386b7f3.chip8_rust.9w2b3zdu-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/chip8_rust-100de6c53386b7f3.chip8_rust.9w2b3zdu-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/chip8_rust-100de6c53386b7f3.chip8_rust.9w2b3zdu-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/chip8_rust-100de6c53386b7f3.chip8_rust.9w2b3zdu-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/chip8_rust-100de6c53386b7f3" "/opt/crater/target/debug/deps/chip8_rust-100de6c53386b7f3.uivmgiho9ol9i9u.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libglium-cecf96d660a281ad.rlib" "/opt/crater/target/debug/deps/libglutin-f09927ff721df320.rlib" "/opt/crater/target/debug/deps/libosmesa_sys-617e6b37eb7eaaa0.rlib" "/opt/crater/target/debug/deps/libwinit-f279f01276b4227f.rlib" "/opt/crater/target/debug/deps/libwayland_window-a31165ef0e0abfc1.rlib" "/opt/crater/target/debug/deps/libtempfile-ce0ef9d5fa655c7e.rlib" "/opt/crater/target/debug/deps/libbyteorder-a3968c370c7b24cf.rlib" "/opt/crater/target/debug/deps/libwayland_kbd-e750c30a07b68653.rlib" "/opt/crater/target/debug/deps/libmemmap-7b8c10bc1961dff3.rlib" "/opt/crater/target/debug/deps/libwayland_client-e5edf1d208dad29e.rlib" "/opt/crater/target/debug/deps/libwayland_sys-06256aa5070e4032.rlib" "/opt/crater/target/debug/deps/libdlib-7e20145c7a5a2684.rlib" "/opt/crater/target/debug/deps/liblibloading-795c291d54e0da64.rlib" "/opt/crater/target/debug/deps/libbitflags-05fa20c47058c1db.rlib" "/opt/crater/target/debug/deps/libx11_dl-3259077875d4bc25.rlib" "/opt/crater/target/debug/deps/libshared_library-63f72073a5fec4f4.rlib" "/opt/crater/target/debug/deps/libfnv-590f8e3d6a0d0a2d.rlib" "/opt/crater/target/debug/deps/libsmallvec-1e4a6f6633b9c71f.rlib" "/opt/crater/target/debug/deps/libbacktrace-1ce00f3d06513765.rlib" "/opt/crater/target/debug/deps/libbacktrace_sys-b3e8dccb613e7875.rlib" "/opt/crater/target/debug/deps/librustc_demangle-550740f22608ec8c.rlib" "/opt/crater/target/debug/deps/libcfg_if-55146e185022d321.rlib" "/opt/crater/target/debug/deps/libdbghelp-94ab056f98c942bf.rlib" "/opt/crater/target/debug/deps/libwinapi-d699aca12e7b19a5.rlib" "/opt/crater/target/debug/deps/libkernel32-68d3558eb82f9807.rlib" "/opt/crater/target/debug/deps/liblazy_static-287e3c5731c128ca.rlib" "/opt/crater/target/debug/deps/librand-487a9a2829e6debe.rlib" "/opt/crater/target/debug/deps/liblibc-2533be16421c0e5d.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-4a76ff35a356aedf.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e11c7b3b3225afe2.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-13217ede3d276f16.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-621a9ee22da6caa1.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-546c844e8071bbeb.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-be9569e4d599746f.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-47d8845cef2a3bc5.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-017511bce73a530c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-be7979c57a08057b.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d6459c4f0817c67c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-580035dd98451925.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-aee5c24fff305dea.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8a55a4098920125a.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-9fc4b5be2ba5cc19.rlib" "-Wl,-Bdynamic" "-ldl" "-ldl" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil" [INFO] [stderr] = note: /opt/crater/target/debug/deps/libbacktrace-1ce00f3d06513765.rlib(backtrace-1ce00f3d06513765.backtrace.e2cqlb10-cgu.15.rcgu.o): In function `backtrace::symbolize::libbacktrace::init_state::{{closure}}': [INFO] [stderr] /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.2.3/src/symbolize/libbacktrace.rs:150: undefined reference to `backtrace_create_state' [INFO] [stderr] /opt/crater/target/debug/deps/libbacktrace-1ce00f3d06513765.rlib(backtrace-1ce00f3d06513765.backtrace.e2cqlb10-cgu.15.rcgu.o): In function `backtrace::symbolize::libbacktrace::resolve': [INFO] [stderr] /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.2.3/src/symbolize/libbacktrace.rs:167: undefined reference to `backtrace_pcinfo' [INFO] [stderr] /opt/crater/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 [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" "2650b5c3cc88b00769b31b75b66756bd825482160e8e6e3cd16fe90415d389dd"` [INFO] running `"docker" "rm" "-f" "2650b5c3cc88b00769b31b75b66756bd825482160e8e6e3cd16fe90415d389dd"` [INFO] [stdout] 2650b5c3cc88b00769b31b75b66756bd825482160e8e6e3cd16fe90415d389dd