[INFO] updating cached repository https://github.com/mrwright/blackhole_ocl
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9813061477e1cea90c64703340b6d3a3e2c7ca69
[INFO] testing mrwright/blackhole_ocl against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrwright%2Fblackhole_ocl" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mrwright/blackhole_ocl on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mrwright/blackhole_ocl
[INFO] finished tweaking git repo https://github.com/mrwright/blackhole_ocl
[INFO] tweaked toml for git repo https://github.com/mrwright/blackhole_ocl written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/mrwright/blackhole_ocl already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 023afc8c4fec80622597ac6088cb4a569d30e1e4384e3a6d8683654c2ec676f9
[INFO] running `"docker" "start" "-a" "023afc8c4fec80622597ac6088cb4a569d30e1e4384e3a6d8683654c2ec676f9"`
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling cl-sys v0.4.2
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling backtrace v0.3.17
[INFO] [stderr]    Compiling sdl2-sys v0.32.6
[INFO] [stderr]    Compiling crossbeam-channel v0.3.8
[INFO] [stderr]    Compiling ocl-core v0.11.1
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling png v0.14.1
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling sdl2 v0.32.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling crossbeam v0.7.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling qutex v0.2.3
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling ocl-core-vector v0.1.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling tiff v0.2.2
[INFO] [stderr]    Compiling image v0.21.2
[INFO] [stderr]    Compiling ocl v0.19.2
[INFO] [stderr] warning[E0502]: cannot borrow `self.cmd.buffer.obj_core` as immutable because it is also borrowed as mutable
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ocl-0.19.2/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/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ocl-0.19.2/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/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ocl-0.19.2/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/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ocl-0.19.2/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 blackhole_ocl v0.1.0 (/opt/rustwide/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/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/blackhole_ocl-07368f3aa13e64a1.blackhole_ocl.j7coo0yb-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/blackhole_ocl-07368f3aa13e64a1.blackhole_ocl.j7coo0yb-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/blackhole_ocl-07368f3aa13e64a1.blackhole_ocl.j7coo0yb-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/blackhole_ocl-07368f3aa13e64a1.blackhole_ocl.j7coo0yb-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/blackhole_ocl-07368f3aa13e64a1.blackhole_ocl.j7coo0yb-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/blackhole_ocl-07368f3aa13e64a1.blackhole_ocl.j7coo0yb-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/blackhole_ocl-07368f3aa13e64a1.blackhole_ocl.j7coo0yb-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/blackhole_ocl-07368f3aa13e64a1.blackhole_ocl.j7coo0yb-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/blackhole_ocl-07368f3aa13e64a1.blackhole_ocl.j7coo0yb-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/blackhole_ocl-07368f3aa13e64a1.blackhole_ocl.j7coo0yb-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/blackhole_ocl-07368f3aa13e64a1.blackhole_ocl.j7coo0yb-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/blackhole_ocl-07368f3aa13e64a1.blackhole_ocl.j7coo0yb-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/blackhole_ocl-07368f3aa13e64a1.blackhole_ocl.j7coo0yb-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/blackhole_ocl-07368f3aa13e64a1.blackhole_ocl.j7coo0yb-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/blackhole_ocl-07368f3aa13e64a1.blackhole_ocl.j7coo0yb-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/blackhole_ocl-07368f3aa13e64a1.blackhole_ocl.j7coo0yb-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/blackhole_ocl-07368f3aa13e64a1" "/opt/rustwide/target/debug/deps/blackhole_ocl-07368f3aa13e64a1.1nhyu7ooduycw2xq.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug/build/backtrace-sys-a5f13d556ea8d17b/out" "-L" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libsdl2-fb6a785e84d1d284.rlib" "/opt/rustwide/target/debug/deps/librand-f598223bc8928a82.rlib" "/opt/rustwide/target/debug/deps/librand_xorshift-788e08e4e9b857db.rlib" "/opt/rustwide/target/debug/deps/librand_pcg-e41477ef205dc899.rlib" "/opt/rustwide/target/debug/deps/librand_hc-a413bb2c7ba70585.rlib" "/opt/rustwide/target/debug/deps/librand_chacha-71d15c312716f348.rlib" "/opt/rustwide/target/debug/deps/librand_isaac-4874caa1590f70f4.rlib" "/opt/rustwide/target/debug/deps/librand_core-92c2f35314396599.rlib" "/opt/rustwide/target/debug/deps/librand_os-0d1ad10acf93321a.rlib" "/opt/rustwide/target/debug/deps/librand_jitter-378cddb3053a68b1.rlib" "/opt/rustwide/target/debug/deps/librand_core-bcfcf7c2a1d9c9e3.rlib" "/opt/rustwide/target/debug/deps/libsdl2_sys-f997f8d2a1877d0f.rlib" "/opt/rustwide/target/debug/deps/libocl-5d71be9fb9df58b3.rlib" "/opt/rustwide/target/debug/deps/libqutex-accaa7f3e20fc286.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam-2895e0e73429f982.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_queue-bbd8f02002d38d98.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_channel-5b1f5d7fa8933653.rlib" "/opt/rustwide/target/debug/deps/libsmallvec-cfaeb06d11ba9748.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_deque-92398f9153eb5bb6.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_epoch-a2691d0d4fd384c4.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-9e2d427305b91d55.rlib" "/opt/rustwide/target/debug/deps/libocl_core-81eb23ea60a173d4.rlib" "/opt/rustwide/target/debug/deps/libcl_sys-b331a1928446aa94.rlib" "/opt/rustwide/target/debug/deps/libocl_core_vector-a5f5b980cf92bad6.rlib" "/opt/rustwide/target/debug/deps/libnum-e2737f3baec3c550.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-fd88cc894cb8dd22.rlib" "/opt/rustwide/target/debug/deps/libnum_bigint-00e6a10de877e272.rlib" "/opt/rustwide/target/debug/deps/librand-cc3b591b4c90d2d5.rlib" "/opt/rustwide/target/debug/deps/libnum_complex-bd05aacfc967e0f8.rlib" "/opt/rustwide/target/debug/deps/librustc_serialize-32acd8f7efa22e3e.rlib" "/opt/rustwide/target/debug/deps/libenum_primitive-81286af2371e9f22.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-9c00a5e6678d4995.rlib" "/opt/rustwide/target/debug/deps/libfailure-07c4feac027f2897.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-9f80518e1870ab0d.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-dfa1ff49c58b58fb.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-db6db0f1bfa58f1a.rlib" "/opt/rustwide/target/debug/deps/libfutures-f5d036c0b5cd400d.rlib" "/opt/rustwide/target/debug/deps/libimage-fb429eee2392b860.rlib" "/opt/rustwide/target/debug/deps/libtiff-7727dbe9a2f978ce.rlib" "/opt/rustwide/target/debug/deps/libpng-a22c1ddbfdc212b9.rlib" "/opt/rustwide/target/debug/deps/libdeflate-8c5fc3f4c31251f7.rlib" "/opt/rustwide/target/debug/deps/libinflate-65056e5186e54958.rlib" "/opt/rustwide/target/debug/deps/libadler32-2b2d9f2ac243fcce.rlib" "/opt/rustwide/target/debug/deps/libjpeg_decoder-03cb5673bd37e3ad.rlib" "/opt/rustwide/target/debug/deps/librayon-46e2171a34f0c7c1.rlib" "/opt/rustwide/target/debug/deps/libeither-3ff9439ba8ae7387.rlib" "/opt/rustwide/target/debug/deps/librayon_core-5e663655c1326442.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-d38a3842c1765d71.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_deque-65846794e14d87b3.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_epoch-fadf3b337cacead2.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-5d24109de20616f8.rlib" "/opt/rustwide/target/debug/deps/libmemoffset-eb3783781a55ffc1.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-806f5cf8273b470a.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-0a174b774a19de72.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-32eaf08e5545e331.rlib" "/opt/rustwide/target/debug/deps/libarrayvec-a8932dfb6e636d3c.rlib" "/opt/rustwide/target/debug/deps/libnodrop-001b361c700f19db.rlib" "/opt/rustwide/target/debug/deps/libgif-a7668698c7c60670.rlib" "/opt/rustwide/target/debug/deps/libcolor_quant-fc3d0bd14341a68f.rlib" "/opt/rustwide/target/debug/deps/libscoped_threadpool-ef5771575dd16434.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-9861225f32377fe5.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-53ea44e79df097b8.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-80c6dbab6652410c.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-cb412cedb055b888.rlib" "/opt/rustwide/target/debug/deps/liblzw-cee06389c23927f5.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-3ef1f6ebaa6479a4.rlib" "/opt/rustwide/target/debug/deps/libclap-9ac323d0b01a8481.rlib" "/opt/rustwide/target/debug/deps/libvec_map-430eebd9ad766441.rlib" "/opt/rustwide/target/debug/deps/libtextwrap-65372d3cb10ebe90.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-efcaf7621463ca26.rlib" "/opt/rustwide/target/debug/deps/libstrsim-9ecff6948862203f.rlib" "/opt/rustwide/target/debug/deps/libbitflags-ac824a210725bad3.rlib" "/opt/rustwide/target/debug/deps/libatty-72133360a964bef3.rlib" "/opt/rustwide/target/debug/deps/liblibc-d04cbd7d2ffaea7d.rlib" "/opt/rustwide/target/debug/deps/libansi_term-96d819b388a7bd02.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-12ce12f1efc08aa3.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-5d3cd1b3ddab72e4.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-f8222943dfd167e2.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-0cd00b2d3108cd48.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-485c05ba6ce1b438.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-63e6b1072426ba59.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-a421aff1d43911ee.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-3deef8ef4fe80dff.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-f65a176f0586269e.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-ad46d4080f4d7e57.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-da6c590582bf0885.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-837ca740df32db0a.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-db27c965e824589f.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-68a4f8466685ed76.rlib" "-Wl,-Bdynamic" "-lSDL2" "-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 `blackhole_ocl`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "023afc8c4fec80622597ac6088cb4a569d30e1e4384e3a6d8683654c2ec676f9"`
[INFO] running `"docker" "rm" "-f" "023afc8c4fec80622597ac6088cb4a569d30e1e4384e3a6d8683654c2ec676f9"`
[INFO] [stdout] 023afc8c4fec80622597ac6088cb4a569d30e1e4384e3a6d8683654c2ec676f9