[INFO] updating cached repository davideGiovannini/rust_realtime_raytracer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/davideGiovannini/rust_realtime_raytracer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/davideGiovannini/rust_realtime_raytracer" "work/ex/beta-1.38-1/sources/1.37.0/gh/davideGiovannini/rust_realtime_raytracer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/davideGiovannini/rust_realtime_raytracer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/davideGiovannini/rust_realtime_raytracer" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/davideGiovannini/rust_realtime_raytracer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/davideGiovannini/rust_realtime_raytracer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b53a925b6d28d3c1f13709d890ed47da7a7f084b
[INFO] sha for GitHub repo davideGiovannini/rust_realtime_raytracer: b53a925b6d28d3c1f13709d890ed47da7a7f084b
[INFO] validating manifest of davideGiovannini/rust_realtime_raytracer on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of davideGiovannini/rust_realtime_raytracer on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing davideGiovannini/rust_realtime_raytracer
[INFO] finished frobbing davideGiovannini/rust_realtime_raytracer
[INFO] frobbed toml for davideGiovannini/rust_realtime_raytracer written to work/ex/beta-1.38-1/sources/1.37.0/gh/davideGiovannini/rust_realtime_raytracer/Cargo.toml
[INFO] started frobbing davideGiovannini/rust_realtime_raytracer
[INFO] finished frobbing davideGiovannini/rust_realtime_raytracer
[INFO] frobbed toml for davideGiovannini/rust_realtime_raytracer written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/davideGiovannini/rust_realtime_raytracer/Cargo.toml
[INFO] crate davideGiovannini/rust_realtime_raytracer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/davideGiovannini/rust_realtime_raytracer/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing davideGiovannini/rust_realtime_raytracer against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/davideGiovannini/rust_realtime_raytracer:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] e01d0a36e71b78401016b061e6aebc3a22e63a6b20bded4f70b6e0555ae122d9
[INFO] running `"docker" "start" "-a" "e01d0a36e71b78401016b061e6aebc3a22e63a6b20bded4f70b6e0555ae122d9"`
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling libc v0.2.62
[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 v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[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/crater/workdir)
[INFO] [stderr] warning: method is never used: `new_from2points`
[INFO] [stderr]   --> src/data_structures/geom.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn new_from2points(min_point: Vector, max_point: Vector) -> BoundingBox {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set`
[INFO] [stderr]    --> src/data_structures/geom.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     pub fn set(&mut self, origin: Vector, direction: Vector) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `change_direction`
[INFO] [stderr]    --> src/data_structures/geom.rs:140:5
[INFO] [stderr]     |
[INFO] [stderr] 140 |     pub fn change_direction(&mut self, direction: Vector) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `right`
[INFO] [stderr]   --> src/data_structures/camera.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     pub fn right(&self) -> Vector {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `direction`
[INFO] [stderr]   --> src/data_structures/camera.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn direction(&self) -> Vector {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: linking with `cc` failed: exit code: 1
[INFO] [stderr]   |
[INFO] [stderr]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/raytracer-b3a87cecafd402a4.raytracer.46zp8rhw-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/raytracer-b3a87cecafd402a4.raytracer.46zp8rhw-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/raytracer-b3a87cecafd402a4.raytracer.46zp8rhw-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/raytracer-b3a87cecafd402a4.raytracer.46zp8rhw-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/raytracer-b3a87cecafd402a4.raytracer.46zp8rhw-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/raytracer-b3a87cecafd402a4.raytracer.46zp8rhw-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/raytracer-b3a87cecafd402a4.raytracer.46zp8rhw-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/raytracer-b3a87cecafd402a4.raytracer.46zp8rhw-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/raytracer-b3a87cecafd402a4.raytracer.46zp8rhw-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/raytracer-b3a87cecafd402a4.raytracer.46zp8rhw-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/raytracer-b3a87cecafd402a4.raytracer.46zp8rhw-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/raytracer-b3a87cecafd402a4.raytracer.46zp8rhw-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/raytracer-b3a87cecafd402a4.raytracer.46zp8rhw-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/raytracer-b3a87cecafd402a4.raytracer.46zp8rhw-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/raytracer-b3a87cecafd402a4.raytracer.46zp8rhw-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/raytracer-b3a87cecafd402a4.raytracer.46zp8rhw-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/raytracer-b3a87cecafd402a4" "/opt/crater/target/debug/deps/raytracer-b3a87cecafd402a4.rllne3z9oow83z8.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libscoped_threadpool-3fba2b901e6b33e2.rlib" "/opt/crater/target/debug/deps/libcgmath-7a64cdc19a9817fe.rlib" "/opt/crater/target/debug/deps/libsdl2_ttf-18d058096bd82200.rlib" "/opt/crater/target/debug/deps/libbitflags-f11cd36bf83f10a9.rlib" "/opt/crater/target/debug/deps/libsdl2-0591de05dbf30ae0.rlib" "/opt/crater/target/debug/deps/librand-f2592b0a4236707a.rlib" "/opt/crater/target/debug/deps/libsdl2_sys-5154ab3f2c574bff.rlib" "/opt/crater/target/debug/deps/libbitflags-13b4d88ebdd8e18e.rlib" "/opt/crater/target/debug/deps/liblazy_static-2f3f37af6675f5a4.rlib" "/opt/crater/target/debug/deps/libnum-84b02b7163d8ac0a.rlib" "/opt/crater/target/debug/deps/libnum_rational-b54cd3d7d59eb7c4.rlib" "/opt/crater/target/debug/deps/libnum_bigint-1f36d0509de01abd.rlib" "/opt/crater/target/debug/deps/librand-cab1947c5493e30c.rlib" "/opt/crater/target/debug/deps/liblibc-7357a64fec943153.rlib" "/opt/crater/target/debug/deps/libnum_complex-686c3bedab969ddd.rlib" "/opt/crater/target/debug/deps/librustc_serialize-14a8b7b0a599d949.rlib" "/opt/crater/target/debug/deps/libnum_iter-c9c1e6dbb3307af3.rlib" "/opt/crater/target/debug/deps/libnum_integer-24effad3868bbac1.rlib" "/opt/crater/target/debug/deps/libnum_traits-95a0672d84d12c21.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-4a76ff35a356aedf.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e11c7b3b3225afe2.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-13217ede3d276f16.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-621a9ee22da6caa1.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-546c844e8071bbeb.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-be9569e4d599746f.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-47d8845cef2a3bc5.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-017511bce73a530c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-be7979c57a08057b.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d6459c4f0817c67c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-580035dd98451925.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-aee5c24fff305dea.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8a55a4098920125a.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-9fc4b5be2ba5cc19.rlib" "-Wl,-Bdynamic" "-lSDL2_ttf" "-lSDL2" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lSDL2_ttf
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `raytracer`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e01d0a36e71b78401016b061e6aebc3a22e63a6b20bded4f70b6e0555ae122d9"`
[INFO] running `"docker" "rm" "-f" "e01d0a36e71b78401016b061e6aebc3a22e63a6b20bded4f70b6e0555ae122d9"`
[INFO] [stdout] e01d0a36e71b78401016b061e6aebc3a22e63a6b20bded4f70b6e0555ae122d9