[INFO] cloning repository https://github.com/deckarep/flappy-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/deckarep/flappy-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeckarep%2Fflappy-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeckarep%2Fflappy-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cb833582e9eb5c53fd9bc3f858467cca74e942d7
[INFO] testing deckarep/flappy-rust against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeckarep%2Fflappy-rust" "/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/deckarep/flappy-rust on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/deckarep/flappy-rust
[INFO] finished tweaking git repo https://github.com/deckarep/flappy-rust
[INFO] tweaked toml for git repo https://github.com/deckarep/flappy-rust written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/deckarep/flappy-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sdl2-sys v0.27.3
[INFO] [stderr]   Downloaded c_vec v1.0.12
[INFO] [stderr]   Downloaded sdl2 v0.29.1
[INFO] [stderr]   Downloaded num-integer v0.1.33
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9aa6995fdf4325dc93d75d289a32e9f8fd3ec700121784887c5434299eb8da1
[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" "c9aa6995fdf4325dc93d75d289a32e9f8fd3ec700121784887c5434299eb8da1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9aa6995fdf4325dc93d75d289a32e9f8fd3ec700121784887c5434299eb8da1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9aa6995fdf4325dc93d75d289a32e9f8fd3ec700121784887c5434299eb8da1", kill_on_drop: false }`
[INFO] [stdout] c9aa6995fdf4325dc93d75d289a32e9f8fd3ec700121784887c5434299eb8da1
[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=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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 535ba4f3cc0a30fe170488dbdd9065ac9e2a41386d26fa56686d2d2d4505224a
[INFO] running `Command { std: "docker" "start" "-a" "535ba4f3cc0a30fe170488dbdd9065ac9e2a41386d26fa56686d2d2d4505224a", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.1.37
[INFO] [stderr]    Compiling libc v0.2.21
[INFO] [stderr]    Compiling sdl2-sys v0.27.3
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling lazy_static v0.2.6
[INFO] [stderr]    Compiling c_vec v1.0.12
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling num-integer v0.1.33
[INFO] [stderr]    Compiling num-iter v0.1.33
[INFO] [stderr]    Compiling num v0.1.37
[INFO] [stderr]    Compiling sdl2 v0.29.1
[INFO] [stderr]    Compiling flappy-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scene.rs:33:30
[INFO] [stdout]    |
[INFO] [stdout] 33 |     children: Vec<Rc<RefCell<Displayable>>>,
[INFO] [stdout]    |                              ^^^^^^^^^^^ help: use `dyn`: `dyn Displayable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scene.rs:51:42
[INFO] [stdout]    |
[INFO] [stdout] 51 |         let mut children: Vec<Rc<RefCell<Displayable>>> = Vec::new();
[INFO] [stdout]    |                                          ^^^^^^^^^^^ help: use `dyn`: `dyn Displayable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/scene.rs:85:51
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub fn add_child(&mut self, child: Rc<RefCell<Displayable>>) {
[INFO] [stdout]    |                                                   ^^^^^^^^^^^ help: use `dyn`: `dyn Displayable`
[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/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/flappy_rust-1fa7f7e769dd8e7f.flappy_rust.8s5ylb48-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/flappy_rust-1fa7f7e769dd8e7f.flappy_rust.8s5ylb48-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/flappy_rust-1fa7f7e769dd8e7f.flappy_rust.8s5ylb48-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/flappy_rust-1fa7f7e769dd8e7f.flappy_rust.8s5ylb48-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/flappy_rust-1fa7f7e769dd8e7f.flappy_rust.8s5ylb48-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/flappy_rust-1fa7f7e769dd8e7f.flappy_rust.8s5ylb48-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/flappy_rust-1fa7f7e769dd8e7f.flappy_rust.8s5ylb48-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/flappy_rust-1fa7f7e769dd8e7f.flappy_rust.8s5ylb48-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/flappy_rust-1fa7f7e769dd8e7f.flappy_rust.8s5ylb48-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/flappy_rust-1fa7f7e769dd8e7f.flappy_rust.8s5ylb48-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/flappy_rust-1fa7f7e769dd8e7f.flappy_rust.8s5ylb48-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/flappy_rust-1fa7f7e769dd8e7f.flappy_rust.8s5ylb48-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/flappy_rust-1fa7f7e769dd8e7f.flappy_rust.8s5ylb48-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/flappy_rust-1fa7f7e769dd8e7f.flappy_rust.8s5ylb48-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/flappy_rust-1fa7f7e769dd8e7f.flappy_rust.8s5ylb48-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/flappy_rust-1fa7f7e769dd8e7f.flappy_rust.8s5ylb48-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/flappy_rust-1fa7f7e769dd8e7f" "/opt/rustwide/target/debug/deps/flappy_rust-1fa7f7e769dd8e7f.67ve9d2smudqs7r.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libsdl2-9f11b64492fd4f78.rlib" "/opt/rustwide/target/debug/deps/librand-b863c2e038538a21.rlib" "/opt/rustwide/target/debug/deps/libc_vec-fd1b2b07c21ad0f0.rlib" "/opt/rustwide/target/debug/deps/libsdl2_sys-4a77fd5aa6035ab3.rlib" "/opt/rustwide/target/debug/deps/libbitflags-5491842f1301905a.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-666a815eace60812.rlib" "/opt/rustwide/target/debug/deps/liblibc-7e914f17b23755d4.rlib" "/opt/rustwide/target/debug/deps/libnum-de0ff4d95974c18c.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-901b25dcade9c849.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-9b362e689dee1f40.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-8e015b84597bc9b8.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-7444fd17919e9af0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-0ee2f67026959ab7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-df1bcd1e82256d04.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-ed9ecf1b54021131.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-0ede66bb24e94b96.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-7c2de7f50940865c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-b138d50085fd4683.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-6576870d8f2b9ae2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-042a30c5f67b2c91.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-7b3f33d3dbe385dc.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-90b3063cd7b22527.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-17f9484f8dc4da1e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-df38345acd9d92e1.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-a5e10ca10bdd9e54.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9e5b4162eeef2cef.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-3a4e739a77468800.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-0f3a0c116d5e04d6.rlib" "-Wl,-Bdynamic" "-lSDL2_ttf" "-lSDL2_image" "-lSDL2_mixer" "-lSDL2_gfx" "-lSDL2" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lSDL2_ttf
[INFO] [stdout]           /usr/bin/ld: cannot find -lSDL2_image
[INFO] [stdout]           /usr/bin/ld: cannot find -lSDL2_mixer
[INFO] [stdout]           /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; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flappy-rust`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "535ba4f3cc0a30fe170488dbdd9065ac9e2a41386d26fa56686d2d2d4505224a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "535ba4f3cc0a30fe170488dbdd9065ac9e2a41386d26fa56686d2d2d4505224a", kill_on_drop: false }`
[INFO] [stdout] 535ba4f3cc0a30fe170488dbdd9065ac9e2a41386d26fa56686d2d2d4505224a