[INFO] cloning repository https://github.com/davideGiovannini/rust_realtime_raytracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davideGiovannini/rust_realtime_raytracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FdavideGiovannini%2Frust_realtime_raytracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FdavideGiovannini%2Frust_realtime_raytracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b53a925b6d28d3c1f13709d890ed47da7a7f084b
[INFO] testing davideGiovannini/rust_realtime_raytracer 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%2FdavideGiovannini%2Frust_realtime_raytracer" "/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/davideGiovannini/rust_realtime_raytracer 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/davideGiovannini/rust_realtime_raytracer
[INFO] finished tweaking git repo https://github.com/davideGiovannini/rust_realtime_raytracer
[INFO] tweaked toml for git repo https://github.com/davideGiovannini/rust_realtime_raytracer written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/davideGiovannini/rust_realtime_raytracer 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] error: the lock file /workspace/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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 cgmath v0.9.1
[INFO] [stderr]   Downloaded sdl2_ttf v0.19.0
[INFO] [stderr]   Downloaded sdl2-sys v0.19.0
[INFO] [stderr]   Downloaded sdl2 v0.19.0
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39fb2b360b80a89d312bf04a80f5ad797b0db24b1f8683aeabeb1207a4f7749e
[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" "39fb2b360b80a89d312bf04a80f5ad797b0db24b1f8683aeabeb1207a4f7749e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39fb2b360b80a89d312bf04a80f5ad797b0db24b1f8683aeabeb1207a4f7749e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39fb2b360b80a89d312bf04a80f5ad797b0db24b1f8683aeabeb1207a4f7749e", kill_on_drop: false }`
[INFO] [stdout] 39fb2b360b80a89d312bf04a80f5ad797b0db24b1f8683aeabeb1207a4f7749e
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8baa1f31bf54992519540c46e5eeb4b5ed83e16760ae2a8e804daa9036d3daf3
[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" "8baa1f31bf54992519540c46e5eeb4b5ed83e16760ae2a8e804daa9036d3daf3", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling sdl2-sys v0.19.0
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling bitflags v0.6.0
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling sdl2 v0.19.0
[INFO] [stderr]    Compiling cgmath v0.9.1
[INFO] [stderr]    Compiling sdl2_ttf v0.19.0
[INFO] [stderr]    Compiling raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new_from2points`
[INFO] [stdout]   --> src/data_structures/geom.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new_from2points(min_point: Vector, max_point: Vector) -> BoundingBox {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set`
[INFO] [stdout]    --> src/data_structures/geom.rs:129:12
[INFO] [stdout]     |
[INFO] [stdout] 129 |     pub fn set(&mut self, origin: Vector, direction: Vector) {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `change_direction`
[INFO] [stdout]    --> src/data_structures/geom.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn change_direction(&mut self, direction: Vector) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `right`
[INFO] [stdout]   --> src/data_structures/camera.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub fn right(&self) -> Vector {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `direction`
[INFO] [stdout]   --> src/data_structures/camera.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn direction(&self) -> Vector {
[INFO] [stdout]    |            ^^^^^^^^^
[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/raytracer-07b200e898cc3c7d.raytracer.ab4sb9om-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/raytracer-07b200e898cc3c7d.raytracer.ab4sb9om-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/raytracer-07b200e898cc3c7d.raytracer.ab4sb9om-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/raytracer-07b200e898cc3c7d.raytracer.ab4sb9om-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/raytracer-07b200e898cc3c7d.raytracer.ab4sb9om-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/raytracer-07b200e898cc3c7d.raytracer.ab4sb9om-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/raytracer-07b200e898cc3c7d.raytracer.ab4sb9om-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/raytracer-07b200e898cc3c7d.raytracer.ab4sb9om-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/raytracer-07b200e898cc3c7d.raytracer.ab4sb9om-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/raytracer-07b200e898cc3c7d.raytracer.ab4sb9om-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/raytracer-07b200e898cc3c7d.raytracer.ab4sb9om-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/raytracer-07b200e898cc3c7d.raytracer.ab4sb9om-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/raytracer-07b200e898cc3c7d.raytracer.ab4sb9om-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/raytracer-07b200e898cc3c7d.raytracer.ab4sb9om-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/raytracer-07b200e898cc3c7d.raytracer.ab4sb9om-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/raytracer-07b200e898cc3c7d.raytracer.ab4sb9om-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/raytracer-07b200e898cc3c7d" "/opt/rustwide/target/debug/deps/raytracer-07b200e898cc3c7d.2ck45gk46b9ifyh0.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/libscoped_threadpool-e0c83f4361421728.rlib" "/opt/rustwide/target/debug/deps/libcgmath-ea58f52444b1896d.rlib" "/opt/rustwide/target/debug/deps/libsdl2_ttf-33e28c2e5f9e08b8.rlib" "/opt/rustwide/target/debug/deps/libbitflags-f997c72fc06b256a.rlib" "/opt/rustwide/target/debug/deps/libsdl2-a400c2d457fe4e15.rlib" "/opt/rustwide/target/debug/deps/librand-52370561b6baedf1.rlib" "/opt/rustwide/target/debug/deps/libsdl2_sys-c772973565d0012b.rlib" "/opt/rustwide/target/debug/deps/libbitflags-ee457be6823a504c.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-c2527755c9395f62.rlib" "/opt/rustwide/target/debug/deps/libnum-188b082df948daa1.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-8e293dc93bdb3a0a.rlib" "/opt/rustwide/target/debug/deps/libnum_bigint-f21d9778ad103b91.rlib" "/opt/rustwide/target/debug/deps/librand-1f8f6fb9970f95db.rlib" "/opt/rustwide/target/debug/deps/liblibc-f16e71618cacdc71.rlib" "/opt/rustwide/target/debug/deps/libnum_complex-d06920313729d41e.rlib" "/opt/rustwide/target/debug/deps/librustc_serialize-3030f200cd3b0d51.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-5d24ebecabec9468.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-7c09b03e9c57206a.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-b3f8be6120e7972b.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" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[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; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `raytracer`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "8baa1f31bf54992519540c46e5eeb4b5ed83e16760ae2a8e804daa9036d3daf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8baa1f31bf54992519540c46e5eeb4b5ed83e16760ae2a8e804daa9036d3daf3", kill_on_drop: false }`
[INFO] [stdout] 8baa1f31bf54992519540c46e5eeb4b5ed83e16760ae2a8e804daa9036d3daf3