[INFO] cloning repository https://github.com/dcheatha/graph-sketchpad
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dcheatha/graph-sketchpad" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcheatha%2Fgraph-sketchpad", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcheatha%2Fgraph-sketchpad'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 608465657f50101af882466da60124cf16f31db9
[INFO] testing dcheatha/graph-sketchpad against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcheatha%2Fgraph-sketchpad" "/workspace/builds/worker-79/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-79/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dcheatha/graph-sketchpad 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/dcheatha/graph-sketchpad
[INFO] finished tweaking git repo https://github.com/dcheatha/graph-sketchpad
[INFO] tweaked toml for git repo https://github.com/dcheatha/graph-sketchpad written to /workspace/builds/worker-79/source/Cargo.toml
[INFO] crate git repo https://github.com/dcheatha/graph-sketchpad 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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] [stdout] 854b5e63d558ccbdad8116377916e96a6486b2142765ab4955e09144718a847b
[INFO] running `Command { std: "docker" "start" "-a" "854b5e63d558ccbdad8116377916e96a6486b2142765ab4955e09144718a847b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "854b5e63d558ccbdad8116377916e96a6486b2142765ab4955e09144718a847b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "854b5e63d558ccbdad8116377916e96a6486b2142765ab4955e09144718a847b", kill_on_drop: false }`
[INFO] [stdout] 854b5e63d558ccbdad8116377916e96a6486b2142765ab4955e09144718a847b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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] a1fd10b62bc1409315bcf7ee688c801da8b1873b9a9fb3b848144630c58bcfee
[INFO] running `Command { std: "docker" "start" "-a" "a1fd10b62bc1409315bcf7ee688c801da8b1873b9a9fb3b848144630c58bcfee", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling khronos_api v3.2.0 (https://github.com/bjz/gl-rs#1cd256c7)
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling sdl2 v0.34.3
[INFO] [stderr]    Compiling c_vec v1.3.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling sdl2-sys v0.34.3
[INFO] [stderr]    Compiling gl_generator v0.14.1 (https://github.com/bjz/gl-rs#1cd256c7)
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_core v0.6.0
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand v0.8.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling gl v0.14.0 (https://github.com/bjz/gl-rs#1cd256c7)
[INFO] [stderr]    Compiling random_color v0.5.0
[INFO] [stderr]    Compiling graph-sketchpad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `random_color::RandomColor`
[INFO] [stdout]  --> src/graph/add_del.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use random_color::RandomColor;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::node::Node`
[INFO] [stdout]  --> src/graph/util.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::node::Node;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/graph/util.rs:164:11
[INFO] [stdout]     |
[INFO] [stdout] 162 |           let node = self.nodes.iter().choose(&mut random).unwrap();
[INFO] [stdout]     |                      ---------- immutable borrow occurs here
[INFO] [stdout] 163 |           let mut visited_nodes = vec![];
[INFO] [stdout] 164 |           self.k_color_painter_rec(&colors, &mut visited_nodes, node.index.clone());
[INFO] [stdout]     |           ^^^^ mutable borrow occurs here                       ---------- immutable borrow later used here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[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/graph_sketchpad-65e83ebadc1bec2b.graph_sketchpad.d7ea8f63-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/graph_sketchpad-65e83ebadc1bec2b.graph_sketchpad.d7ea8f63-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/graph_sketchpad-65e83ebadc1bec2b.graph_sketchpad.d7ea8f63-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/graph_sketchpad-65e83ebadc1bec2b.graph_sketchpad.d7ea8f63-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/graph_sketchpad-65e83ebadc1bec2b.graph_sketchpad.d7ea8f63-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/graph_sketchpad-65e83ebadc1bec2b.graph_sketchpad.d7ea8f63-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/graph_sketchpad-65e83ebadc1bec2b.graph_sketchpad.d7ea8f63-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/graph_sketchpad-65e83ebadc1bec2b.graph_sketchpad.d7ea8f63-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/graph_sketchpad-65e83ebadc1bec2b.graph_sketchpad.d7ea8f63-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/graph_sketchpad-65e83ebadc1bec2b.graph_sketchpad.d7ea8f63-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/graph_sketchpad-65e83ebadc1bec2b.graph_sketchpad.d7ea8f63-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/graph_sketchpad-65e83ebadc1bec2b.graph_sketchpad.d7ea8f63-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/graph_sketchpad-65e83ebadc1bec2b.graph_sketchpad.d7ea8f63-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/graph_sketchpad-65e83ebadc1bec2b.graph_sketchpad.d7ea8f63-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/graph_sketchpad-65e83ebadc1bec2b.graph_sketchpad.d7ea8f63-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/graph_sketchpad-65e83ebadc1bec2b.graph_sketchpad.d7ea8f63-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/graph_sketchpad-65e83ebadc1bec2b.3xgk0p0dbaz3aapy.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/librand-4991db7e706df3e4.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-f2dea742d8683bbb.rlib" "/opt/rustwide/target/debug/deps/librand_core-7614b4af0f58bb31.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-73dd94629c5a76da.rlib" "/opt/rustwide/target/debug/deps/librandom_color-6f4a274d62c7581c.rlib" "/opt/rustwide/target/debug/deps/librand-7a5414b7ac9a707b.rlib" "/opt/rustwide/target/debug/deps/librand_pcg-a99334f6c6068b19.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-20ca186428fd3053.rlib" "/opt/rustwide/target/debug/deps/libppv_lite86-069634687179693a.rlib" "/opt/rustwide/target/debug/deps/librand_core-362b327ea623286c.rlib" "/opt/rustwide/target/debug/deps/libgetrandom-54b92b3921ac0c67.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-4dc40f94662accb2.rlib" "/opt/rustwide/target/debug/deps/libsdl2-96be799f96c681bb.rlib" "/opt/rustwide/target/debug/deps/libc_vec-26c07a6a252610a3.rlib" "/opt/rustwide/target/debug/deps/libsdl2_sys-22b8575a4ee1b5e0.rlib" "/opt/rustwide/target/debug/deps/libbitflags-117d41ac256572da.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-df981c5871754530.rlib" "/opt/rustwide/target/debug/deps/liblibc-f3b2aed029f150f3.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" "-lSDL2_gfx" "-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/graph_sketchpad-65e83ebadc1bec2b" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lSDL2_ttf
[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 `graph-sketchpad` due to 2 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a1fd10b62bc1409315bcf7ee688c801da8b1873b9a9fb3b848144630c58bcfee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1fd10b62bc1409315bcf7ee688c801da8b1873b9a9fb3b848144630c58bcfee", kill_on_drop: false }`
[INFO] [stdout] a1fd10b62bc1409315bcf7ee688c801da8b1873b9a9fb3b848144630c58bcfee