[INFO] cloning repository https://github.com/questmaster/rust_sweeper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/questmaster/rust_sweeper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquestmaster%2Frust_sweeper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquestmaster%2Frust_sweeper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b27667c96983eb22d36bab24112866bd3a66a6a3
[INFO] testing questmaster/rust_sweeper against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquestmaster%2Frust_sweeper" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/questmaster/rust_sweeper on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/questmaster/rust_sweeper
[INFO] finished tweaking git repo https://github.com/questmaster/rust_sweeper
[INFO] tweaked toml for git repo https://github.com/questmaster/rust_sweeper written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/questmaster/rust_sweeper already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", 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] bcfc21e15dac203d9711b24f365ce181dbb9f4440e20a2e93fb4ea92f71baec0
[INFO] running `Command { std: "docker" "start" "-a" "bcfc21e15dac203d9711b24f365ce181dbb9f4440e20a2e93fb4ea92f71baec0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bcfc21e15dac203d9711b24f365ce181dbb9f4440e20a2e93fb4ea92f71baec0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcfc21e15dac203d9711b24f365ce181dbb9f4440e20a2e93fb4ea92f71baec0", kill_on_drop: false }`
[INFO] [stdout] bcfc21e15dac203d9711b24f365ce181dbb9f4440e20a2e93fb4ea92f71baec0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd2c10a3cf9777040a6aec9fb124219c595a99bb3f7efd21e480670436016c2e
[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" "fd2c10a3cf9777040a6aec9fb124219c595a99bb3f7efd21e480670436016c2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling sdl2 v0.34.3
[INFO] [stderr]    Compiling rust_sweeper v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling sdl2-sys v0.34.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stdout] warning: unused import: `Point`
[INFO] [stdout]  --> src/game_area_ui/sdl_ui.rs:8:18
[INFO] [stdout]   |
[INFO] [stdout] 8 | use sdl2::rect::{Point, Rect};
[INFO] [stdout]   |                  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `x` is never read
[INFO] [stdout]   --> src/lib.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let mut x = 0usize;
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `y` is never read
[INFO] [stdout]   --> src/lib.rs:40:17
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut y = 0usize;
[INFO] [stdout]    |                 ^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/game_area_ui/sdl_ui.rs:247:14
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let (x, y) = (0usize, 0usize);
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/game_area_ui/sdl_ui.rs:247:17
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let (x, y) = (0usize, 0usize);
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unload_all`
[INFO] [stdout]   --> src/game_area_ui/sdl_ui.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn unload_all(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/game_area_ui/sdl_ui.rs:212:17
[INFO] [stdout]     |
[INFO] [stdout] 212 |                 canvas.draw_rects(&rect);
[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: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/rust_sweeper-96ac2028b7bedabe.rust_sweeper.bd94874a-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sweeper-96ac2028b7bedabe.rust_sweeper.bd94874a-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sweeper-96ac2028b7bedabe.rust_sweeper.bd94874a-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sweeper-96ac2028b7bedabe.rust_sweeper.bd94874a-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sweeper-96ac2028b7bedabe.rust_sweeper.bd94874a-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sweeper-96ac2028b7bedabe.rust_sweeper.bd94874a-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sweeper-96ac2028b7bedabe.rust_sweeper.bd94874a-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sweeper-96ac2028b7bedabe.rust_sweeper.bd94874a-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sweeper-96ac2028b7bedabe.rust_sweeper.bd94874a-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sweeper-96ac2028b7bedabe.rust_sweeper.bd94874a-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sweeper-96ac2028b7bedabe.rust_sweeper.bd94874a-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sweeper-96ac2028b7bedabe.rust_sweeper.bd94874a-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sweeper-96ac2028b7bedabe.rust_sweeper.bd94874a-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sweeper-96ac2028b7bedabe.rust_sweeper.bd94874a-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sweeper-96ac2028b7bedabe.rust_sweeper.bd94874a-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sweeper-96ac2028b7bedabe.rust_sweeper.bd94874a-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/rust_sweeper-96ac2028b7bedabe.1dvb6wj67tvga4fd.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libstructopt-2ffe267be60e9bb2.rlib" "/opt/rustwide/target/debug/deps/libclap-18d2bca5c90218e6.rlib" "/opt/rustwide/target/debug/deps/libvec_map-5f104c2ee05f26e6.rlib" "/opt/rustwide/target/debug/deps/libtextwrap-349506f3b2349b3f.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-05a4b639dec6224c.rlib" "/opt/rustwide/target/debug/deps/libstrsim-0fc606efc91e3789.rlib" "/opt/rustwide/target/debug/deps/libatty-093da68f73f896ab.rlib" "/opt/rustwide/target/debug/deps/libansi_term-329dab68dba20daf.rlib" "/opt/rustwide/target/debug/deps/librust_sweeper-2b23c4a08cf84f71.rlib" "/opt/rustwide/target/debug/deps/libsdl2-de684d7bb3844b0b.rlib" "/opt/rustwide/target/debug/deps/libsdl2_sys-b58f9f70641ed97b.rlib" "/opt/rustwide/target/debug/deps/libbitflags-117d41ac256572da.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-df981c5871754530.rlib" "/opt/rustwide/target/debug/deps/librand-bdb4895f5f700cab.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-41d40e3fecdc5d3b.rlib" "/opt/rustwide/target/debug/deps/libppv_lite86-069634687179693a.rlib" "/opt/rustwide/target/debug/deps/librand_core-5ffacdefa812998d.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-6124a9cddc924b7f.rlib" "/opt/rustwide/target/debug/deps/liblibc-e353681d5d0d351d.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-dece450273084492.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-008055cc7d873802.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-06f01ac2578bda94.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-f9a3c3274a1835e0.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-d4cbb754ee9f4daa.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-95c14e1c1e3ebcc4.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-d489f0ca872880cc.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-75f07df0b18fea39.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-0c35b278736219a2.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-e530649c9a06e3c6.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-6b148909d375a785.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-cd15fa647f4775d1.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-74be3a703f788ba2.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-8f2c5b445c28b2e3.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-8480e85e0be96197.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-ac23a75f6f42004e.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-557ba8776e04d182.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-4beb03d03503c439.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-dd7db1bec6909f24.rlib" "-Wl,-Bdynamic" "-lSDL2" "-lSDL2_ttf" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/rust_sweeper-96ac2028b7bedabe" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lSDL2_ttf
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_sweeper` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "fd2c10a3cf9777040a6aec9fb124219c595a99bb3f7efd21e480670436016c2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd2c10a3cf9777040a6aec9fb124219c595a99bb3f7efd21e480670436016c2e", kill_on_drop: false }`
[INFO] [stdout] fd2c10a3cf9777040a6aec9fb124219c595a99bb3f7efd21e480670436016c2e