[INFO] updating cached repository Jkillelea/game_of_life
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Jkillelea/game_of_life
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Jkillelea/game_of_life" "work/ex/beta-1.38-1/sources/1.37.0/gh/Jkillelea/game_of_life"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Jkillelea/game_of_life'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Jkillelea/game_of_life" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Jkillelea/game_of_life"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Jkillelea/game_of_life'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 25cfa719fc4831eddf70e598f02436b37f3dc8ab
[INFO] sha for GitHub repo Jkillelea/game_of_life: 25cfa719fc4831eddf70e598f02436b37f3dc8ab
[INFO] validating manifest of Jkillelea/game_of_life 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 Jkillelea/game_of_life 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 Jkillelea/game_of_life
[INFO] finished frobbing Jkillelea/game_of_life
[INFO] frobbed toml for Jkillelea/game_of_life written to work/ex/beta-1.38-1/sources/1.37.0/gh/Jkillelea/game_of_life/Cargo.toml
[INFO] started frobbing Jkillelea/game_of_life
[INFO] finished frobbing Jkillelea/game_of_life
[INFO] frobbed toml for Jkillelea/game_of_life written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Jkillelea/game_of_life/Cargo.toml
[INFO] crate Jkillelea/game_of_life 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Jkillelea/game_of_life against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Jkillelea/game_of_life:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 35510180165d3d38b1866ffa5b3fd406ed78321801cab4d08c6eb0f2523fbbd7
[INFO] running `"docker" "start" "-a" "35510180165d3d38b1866ffa5b3fd406ed78321801cab4d08c6eb0f2523fbbd7"`
[INFO] [stderr]    Compiling cc v1.0.19
[INFO] [stderr]    Compiling qutex v0.2.1
[INFO] [stderr]    Compiling ocl-core v0.10.0
[INFO] [stderr]    Compiling cl-sys v0.4.1
[INFO] [stderr]    Compiling syn v0.14.8
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling ocl-core-vector v0.1.0
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]    Compiling failure v0.1.2
[INFO] [stderr]    Compiling ocl v0.19.0
[INFO] [stderr] warning[E0502]: cannot borrow `self.cmd.buffer.obj_core` as immutable because it is also borrowed as mutable
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/ocl-0.19.0/src/standard/buffer.rs:1609:13
[INFO] [stderr]      |
[INFO] [stderr] 1606 |         let (offset, len, queue, flags, ewait, enew, /*is_mapped*/) = self.enq_details()?;
[INFO] [stderr]      |                                                                       ---- mutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 1609 |             &self.cmd.buffer.obj_core, true, flags, offset, len, ewait, enew)?;
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^ immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 1614 |             queue.clone()))
[INFO] [stderr]      |             ----- mutable borrow later used here
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]      = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]      = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr] warning[E0502]: cannot borrow `self.cmd.buffer.obj_core` as immutable because it is also borrowed as mutable
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/ocl-0.19.0/src/standard/buffer.rs:1613:57
[INFO] [stderr]      |
[INFO] [stderr] 1606 |         let (offset, len, queue, flags, ewait, enew, /*is_mapped*/) = self.enq_details()?;
[INFO] [stderr]      |                                                                       ---- mutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 1613 |         Ok(MemMap::new(mm_core, len, None, unmap_event, self.cmd.buffer.obj_core.clone(),
[INFO] [stderr]      |                                                         ^^^^^^^^^^^^^^^^^^^^^^^^ immutable borrow occurs here
[INFO] [stderr] 1614 |             queue.clone()))
[INFO] [stderr]      |             ----- mutable borrow later used here
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]      = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]      = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr] warning[E0502]: cannot borrow `self.cmd.buffer.obj_core` as immutable because it is also borrowed as mutable
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/ocl-0.19.0/src/standard/buffer.rs:1635:13
[INFO] [stderr]      |
[INFO] [stderr] 1630 |         let (offset, len, queue, flags, ewait, enew, /*is_mapped*/) = self.enq_details()?;
[INFO] [stderr]      |                                                                       ---- mutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 1635 |             &self.cmd.buffer.obj_core, false, flags, offset, len, ewait,
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^ immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 1646 |             self.cmd.buffer.obj_core.clone(), queue.clone(), /*is_mapped*/))
[INFO] [stderr]      |                                               ----- mutable borrow later used here
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]      = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]      = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr] warning[E0502]: cannot borrow `self.cmd.buffer.obj_core` as immutable because it is also borrowed as mutable
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/ocl-0.19.0/src/standard/buffer.rs:1646:13
[INFO] [stderr]      |
[INFO] [stderr] 1630 |         let (offset, len, queue, flags, ewait, enew, /*is_mapped*/) = self.enq_details()?;
[INFO] [stderr]      |                                                                       ---- mutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 1646 |             self.cmd.buffer.obj_core.clone(), queue.clone(), /*is_mapped*/))
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^^^^^^^          ----- mutable borrow later used here
[INFO] [stderr]      |             |
[INFO] [stderr]      |             immutable borrow occurs here
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]      = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]      = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]    Compiling game_of_life v0.1.0 (/opt/crater/workdir)
[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/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/game_of_life-b461896ffae7cb1c.game_of_life.6t4inj13-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/game_of_life-b461896ffae7cb1c.game_of_life.6t4inj13-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/game_of_life-b461896ffae7cb1c.game_of_life.6t4inj13-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/game_of_life-b461896ffae7cb1c.game_of_life.6t4inj13-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/game_of_life-b461896ffae7cb1c.game_of_life.6t4inj13-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/game_of_life-b461896ffae7cb1c.game_of_life.6t4inj13-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/game_of_life-b461896ffae7cb1c.game_of_life.6t4inj13-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/game_of_life-b461896ffae7cb1c.game_of_life.6t4inj13-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/game_of_life-b461896ffae7cb1c.game_of_life.6t4inj13-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/game_of_life-b461896ffae7cb1c.game_of_life.6t4inj13-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/game_of_life-b461896ffae7cb1c.game_of_life.6t4inj13-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/game_of_life-b461896ffae7cb1c.game_of_life.6t4inj13-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/game_of_life-b461896ffae7cb1c.game_of_life.6t4inj13-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/game_of_life-b461896ffae7cb1c.game_of_life.6t4inj13-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/game_of_life-b461896ffae7cb1c.game_of_life.6t4inj13-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/game_of_life-b461896ffae7cb1c.game_of_life.6t4inj13-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/game_of_life-b461896ffae7cb1c" "/opt/crater/target/debug/deps/game_of_life-b461896ffae7cb1c.2lxu5wvafgvcf66o.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/target/debug/build/backtrace-sys-dbe774c8752d21cc/out" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libocl-a6ebab1c2b9243a1.rlib" "/opt/crater/target/debug/deps/libqutex-c8464395e1e57f74.rlib" "/opt/crater/target/debug/deps/libcrossbeam-b7feb6e2b32da9c7.rlib" "/opt/crater/target/debug/deps/libocl_core-838bd71a8472c51a.rlib" "/opt/crater/target/debug/deps/libcl_sys-d6b3fd2550eb154e.rlib" "/opt/crater/target/debug/deps/libocl_core_vector-037610877aa066db.rlib" "/opt/crater/target/debug/deps/libnum-e24e2a153910779b.rlib" "/opt/crater/target/debug/deps/libnum_rational-eee923926235edf8.rlib" "/opt/crater/target/debug/deps/libnum_bigint-3221d3df8466b205.rlib" "/opt/crater/target/debug/deps/librand-61858dfae8c87f2c.rlib" "/opt/crater/target/debug/deps/libnum_complex-dd1f167477d647d1.rlib" "/opt/crater/target/debug/deps/librustc_serialize-fc0a027b4489f806.rlib" "/opt/crater/target/debug/deps/libenum_primitive-21816892d7e6b382.rlib" "/opt/crater/target/debug/deps/libnum_traits-27dc4fb5de826b06.rlib" "/opt/crater/target/debug/deps/libfailure-695f3176d0b7f072.rlib" "/opt/crater/target/debug/deps/libbacktrace-5a5538c4acf19696.rlib" "/opt/crater/target/debug/deps/libbacktrace_sys-43026bc27134b62f.rlib" "/opt/crater/target/debug/deps/librustc_demangle-9891100843b3000f.rlib" "/opt/crater/target/debug/deps/libfutures-4462721d44661bf5.rlib" "/opt/crater/target/debug/deps/librayon-45b6d6bdfdd1212d.rlib" "/opt/crater/target/debug/deps/libeither-90c0ce8e46d0418a.rlib" "/opt/crater/target/debug/deps/librayon_core-a3c7735f96233ecf.rlib" "/opt/crater/target/debug/deps/libnum_cpus-fc589b1b75bee282.rlib" "/opt/crater/target/debug/deps/libcrossbeam_deque-ec08415c898b1403.rlib" "/opt/crater/target/debug/deps/libcrossbeam_epoch-8a7f31393364dcf3.rlib" "/opt/crater/target/debug/deps/libscopeguard-22a7afc64d55fe2c.rlib" "/opt/crater/target/debug/deps/libmemoffset-81f7e9a5af225363.rlib" "/opt/crater/target/debug/deps/liblazy_static-1c191df07b3080c1.rlib" "/opt/crater/target/debug/deps/libcrossbeam_utils-0cbb694e5475aa4e.rlib" "/opt/crater/target/debug/deps/libcfg_if-1e3ee15ac5843e97.rlib" "/opt/crater/target/debug/deps/libarrayvec-304f222e1e8a211b.rlib" "/opt/crater/target/debug/deps/libnodrop-77b1df44365c6506.rlib" "/opt/crater/target/debug/deps/libpng-94f349c4aa5e2e72.rlib" "/opt/crater/target/debug/deps/libdeflate-dba2c33f0a8d52a2.rlib" "/opt/crater/target/debug/deps/libbyteorder-5f88d5ffc8736180.rlib" "/opt/crater/target/debug/deps/libinflate-9aa776be8df4e5de.rlib" "/opt/crater/target/debug/deps/libadler32-b7013a55566e2bf0.rlib" "/opt/crater/target/debug/deps/libnum_iter-4e3c9ade6a0e188c.rlib" "/opt/crater/target/debug/deps/libnum_integer-1aea5f7ced06a086.rlib" "/opt/crater/target/debug/deps/libnum_traits-b8521d0bebe12052.rlib" "/opt/crater/target/debug/deps/libbitflags-9f040734986e226a.rlib" "/opt/crater/target/debug/deps/librand-c6ced96e594cc2ad.rlib" "/opt/crater/target/debug/deps/liblibc-bdc2386f4cce9efc.rlib" "/opt/crater/target/debug/deps/librand_core-3a9bd6820bcb6482.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1d6d86bd078a28e9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e9721e46a424e2a9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-c07193698f282147.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-6da45690f3863086.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-690797036dd27680.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-d3896ccbfd8eda2b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-7cccc3739e3d7623.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-5e9ba178a513cd29.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-5ca9f83bf63d1f4b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-bba1c7ef9e950882.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-e23c9de62012deb5.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9b59dffdcd513d5d.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-17392340ab2e4a97.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-ac21508a81e3f7f3.rlib" "-Wl,-Bdynamic" "-lOpenCL" "-lOpenCL" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lOpenCL
[INFO] [stderr]           /usr/bin/ld: cannot find -lOpenCL
[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 `game_of_life`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "35510180165d3d38b1866ffa5b3fd406ed78321801cab4d08c6eb0f2523fbbd7"`
[INFO] running `"docker" "rm" "-f" "35510180165d3d38b1866ffa5b3fd406ed78321801cab4d08c6eb0f2523fbbd7"`
[INFO] [stdout] 35510180165d3d38b1866ffa5b3fd406ed78321801cab4d08c6eb0f2523fbbd7