[INFO] cloning repository https://github.com/ghallberg/paperacers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ghallberg/paperacers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fghallberg%2Fpaperacers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fghallberg%2Fpaperacers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f7fa24c1e3d7f43e4121d20b4034f12d37a8596
[INFO] testing ghallberg/paperacers against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fghallberg%2Fpaperacers" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ghallberg/paperacers on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ghallberg/paperacers
[INFO] finished tweaking git repo https://github.com/ghallberg/paperacers
[INFO] tweaked toml for git repo https://github.com/ghallberg/paperacers written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ghallberg/paperacers already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d0a6dab0128e0db1aca396abbf6d6702e44e786dde56529b746d4ec6c1bcf08
[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" "8d0a6dab0128e0db1aca396abbf6d6702e44e786dde56529b746d4ec6c1bcf08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d0a6dab0128e0db1aca396abbf6d6702e44e786dde56529b746d4ec6c1bcf08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d0a6dab0128e0db1aca396abbf6d6702e44e786dde56529b746d4ec6c1bcf08", kill_on_drop: false }`
[INFO] [stdout] 8d0a6dab0128e0db1aca396abbf6d6702e44e786dde56529b746d4ec6c1bcf08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d9c040eb103ac99206e3916cf4ccc45ce3b183bc66533d908d14399895fb3704
[INFO] running `Command { std: "docker" "start" "-a" "d9c040eb103ac99206e3916cf4ccc45ce3b183bc66533d908d14399895fb3704", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling cfg-if v0.1.5
[INFO] [stderr]    Compiling c_vec v1.3.2
[INFO] [stderr]    Compiling sdl2-sys v0.31.0
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling sdl2 v0.31.0
[INFO] [stderr]    Compiling paperacers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `pos`
[INFO] [stdout]   --> src/game.rs:83:28
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn is_on_starting_line(pos: GridPos) -> bool {
[INFO] [stdout]    |                            ^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `GamePos`
[INFO] [stdout]  --> src/game.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct GamePos {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 87 | /     canvas.filled_polygon(
[INFO] [stdout] 88 | |         track.out_edge.xs.as_slice(),
[INFO] [stdout] 89 | |         track.out_edge.ys.as_slice(),
[INFO] [stdout] 90 | |         track_color
[INFO] [stdout] 91 | |         );
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 | /     canvas.filled_polygon(
[INFO] [stdout] 93 | |         track.in_edge.xs.as_slice(),
[INFO] [stdout] 94 | |         track.in_edge.ys.as_slice(),
[INFO] [stdout] 95 | |         center_color
[INFO] [stdout] 96 | |         );
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |         canvas.thick_line(start.x as i16, start.y as i16, end.x as i16, end.y as i16, 2, color);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:107:23
[INFO] [stdout]     |
[INFO] [stdout] 107 |         Some(pos) => {canvas.filled_circle(pos.x as i16, pos.y as i16, 3, color);},
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:122:13
[INFO] [stdout]     |
[INFO] [stdout] 122 |             canvas.rectangle(x1, y1, x2, y2, color);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:130:13
[INFO] [stdout]     |
[INFO] [stdout] 130 |             canvas.rectangle(x1, y1, x2, y2, color);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:140:17
[INFO] [stdout]     |
[INFO] [stdout] 140 |                 canvas.circle(mdp.x as i16, mdp.y as i16, 3, color);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:143:17
[INFO] [stdout]     |
[INFO] [stdout] 143 |                 canvas.circle(mdp.x as i16, mdp.y as i16, 3, Color::RGB(150,0,0));
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/paperacers-00b4e5e7e8bd4768.paperacers.3ixjahca-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/paperacers-00b4e5e7e8bd4768.paperacers.3ixjahca-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/paperacers-00b4e5e7e8bd4768.paperacers.3ixjahca-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/paperacers-00b4e5e7e8bd4768.paperacers.3ixjahca-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/paperacers-00b4e5e7e8bd4768.paperacers.3ixjahca-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/paperacers-00b4e5e7e8bd4768.paperacers.3ixjahca-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/paperacers-00b4e5e7e8bd4768.paperacers.3ixjahca-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/paperacers-00b4e5e7e8bd4768.paperacers.3ixjahca-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/paperacers-00b4e5e7e8bd4768.paperacers.3ixjahca-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/paperacers-00b4e5e7e8bd4768.paperacers.3ixjahca-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/paperacers-00b4e5e7e8bd4768.paperacers.3ixjahca-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/paperacers-00b4e5e7e8bd4768.paperacers.3ixjahca-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/paperacers-00b4e5e7e8bd4768.paperacers.3ixjahca-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/paperacers-00b4e5e7e8bd4768.paperacers.3ixjahca-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/paperacers-00b4e5e7e8bd4768.paperacers.3ixjahca-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/paperacers-00b4e5e7e8bd4768.paperacers.3ixjahca-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/paperacers-00b4e5e7e8bd4768" "/opt/rustwide/target/debug/deps/paperacers-00b4e5e7e8bd4768.1guhn1r7w35p9jyg.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libitertools-1b37786d043f5700.rlib" "/opt/rustwide/target/debug/deps/libeither-1e31146e15e4bfb2.rlib" "/opt/rustwide/target/debug/deps/libsdl2-01e5c3f0252e23cd.rlib" "/opt/rustwide/target/debug/deps/librand-429ccce409ed7865.rlib" "/opt/rustwide/target/debug/deps/librand-a61ad2704e4823e1.rlib" "/opt/rustwide/target/debug/deps/libc_vec-7c281f6d6df2d9ed.rlib" "/opt/rustwide/target/debug/deps/libsdl2_sys-7fe2667007f66458.rlib" "/opt/rustwide/target/debug/deps/libbitflags-032ea61c97bf3967.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-4b460a565d885068.rlib" "/opt/rustwide/target/debug/deps/liblibc-a59c871a1b92ae29.rlib" "/opt/rustwide/target/debug/deps/libnum-2e0d4632a2674eb7.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-5f68d8368737d21f.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-3be705929f14b82f.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-9a525f7f1791a4e4.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-f14aca24435a5414.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-48d342a8b48d1d01.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-14bc0820888c8eb3.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-9cbd9e217bff06bc.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-31826136df98934e.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-075976a117c8fd5d.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-2d5cbedfbf17a011.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-0474372ff08c5319.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-d437c34460d2315a.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-fb61ed1b8cc4de79.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-bf76d1b643bfc9f0.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-a1b53aa7fddcf418.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-28585e57fac45c73.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-64801769bc15ab28.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-541997b56bb98660.rlib" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-cdea3c81adab3d12.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.47.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-cd9f15a39fb65cbc.rlib" "-Wl,-Bdynamic" "-lSDL2_gfx" "-lSDL2" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lSDL2_gfx
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `paperacers`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "d9c040eb103ac99206e3916cf4ccc45ce3b183bc66533d908d14399895fb3704", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9c040eb103ac99206e3916cf4ccc45ce3b183bc66533d908d14399895fb3704", kill_on_drop: false }`
[INFO] [stdout] d9c040eb103ac99206e3916cf4ccc45ce3b183bc66533d908d14399895fb3704
