[INFO] crate nano-work-server 0.1.7 is already in cache [INFO] extracting crate nano-work-server 0.1.7 into work/ex/beta-1.38-1/sources/1.37.0/reg/nano-work-server/0.1.7 [INFO] extracting crate nano-work-server 0.1.7 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/nano-work-server/0.1.7 [INFO] validating manifest of nano-work-server-0.1.7 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 nano-work-server-0.1.7 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 nano-work-server-0.1.7 [INFO] finished frobbing nano-work-server-0.1.7 [INFO] frobbed toml for nano-work-server-0.1.7 written to work/ex/beta-1.38-1/sources/1.37.0/reg/nano-work-server/0.1.7/Cargo.toml [INFO] started frobbing nano-work-server-0.1.7 [INFO] finished frobbing nano-work-server-0.1.7 [INFO] frobbed toml for nano-work-server-0.1.7 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/nano-work-server/0.1.7/Cargo.toml [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 nano-work-server-0.1.7 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/reg/nano-work-server/0.1.7:/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] dfb7f1b37cb649439263cd99cfccdff6f009d9942ae118c26e2e889df94780f8 [INFO] running `"docker" "start" "-a" "dfb7f1b37cb649439263cd99cfccdff6f009d9942ae118c26e2e889df94780f8"` [INFO] [stderr] Compiling ocl-core v0.9.0 [INFO] [stderr] Compiling parking_lot_core v0.2.14 [INFO] [stderr] Compiling blake2 v0.7.1 [INFO] [stderr] Compiling tokio-threadpool v0.1.15 [INFO] [stderr] Compiling parking_lot v0.5.5 [INFO] [stderr] Compiling tokio-fs v0.1.6 [INFO] [stderr] Compiling tokio v0.1.22 [INFO] [stderr] Compiling tokio-core v0.1.17 [INFO] [stderr] Compiling ocl v0.18.0 [INFO] [stderr] Compiling tokio-proto v0.1.1 [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-0.18.0/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-0.18.0/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-0.18.0/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-0.18.0/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 hyper v0.11.27 [INFO] [stderr] Compiling nano-work-server v0.1.7 (/opt/crater/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:103:52 [INFO] [stderr] | [INFO] [stderr] 103 | fn generate_work(&self, root: [u8; 32]) -> Box> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(bare_trait_objects)] on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:218:14 [INFO] [stderr] | [INFO] [stderr] 218 | ) -> Box> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:281:23 [INFO] [stderr] | [INFO] [stderr] 281 | type Future = Box>; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future` [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/nano_work_server-e3f95951d947142e.nano_work_server.9ug6tg6d-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-e3f95951d947142e.nano_work_server.9ug6tg6d-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-e3f95951d947142e.nano_work_server.9ug6tg6d-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-e3f95951d947142e.nano_work_server.9ug6tg6d-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-e3f95951d947142e.nano_work_server.9ug6tg6d-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-e3f95951d947142e.nano_work_server.9ug6tg6d-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-e3f95951d947142e.nano_work_server.9ug6tg6d-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-e3f95951d947142e.nano_work_server.9ug6tg6d-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-e3f95951d947142e.nano_work_server.9ug6tg6d-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-e3f95951d947142e.nano_work_server.9ug6tg6d-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-e3f95951d947142e.nano_work_server.9ug6tg6d-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-e3f95951d947142e.nano_work_server.9ug6tg6d-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-e3f95951d947142e.nano_work_server.9ug6tg6d-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-e3f95951d947142e.nano_work_server.9ug6tg6d-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-e3f95951d947142e.nano_work_server.9ug6tg6d-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-e3f95951d947142e.nano_work_server.9ug6tg6d-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/nano_work_server-e3f95951d947142e" "/opt/crater/target/debug/deps/nano_work_server-e3f95951d947142e.4px5puxyupae6sx9.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-5c81d3694d492bc0/out" "-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/libserde_json-f6b540ffea90773e.rlib" "/opt/crater/target/debug/deps/libryu-be578719e5bf2327.rlib" "/opt/crater/target/debug/deps/libitoa-d35f0a89557c3310.rlib" "/opt/crater/target/debug/deps/libserde-3a1343e806eb8450.rlib" "/opt/crater/target/debug/deps/libparking_lot-cf824e10c8c9e95c.rlib" "/opt/crater/target/debug/deps/libparking_lot_core-323972b2df1becb5.rlib" "/opt/crater/target/debug/deps/libowning_ref-1b9c1c6083ad5d6b.rlib" "/opt/crater/target/debug/deps/libocl-a680425a58b062dd.rlib" "/opt/crater/target/debug/deps/libqutex-1e4a50a0f318465f.rlib" "/opt/crater/target/debug/deps/libcrossbeam-480de57eb4051e18.rlib" "/opt/crater/target/debug/deps/libcrossbeam_channel-783a9e2d2bdabc94.rlib" 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"/opt/crater/target/debug/deps/libmio-0e2bc1a0dc1217dc.rlib" "/opt/crater/target/debug/deps/libslab-38e1dff674bc2c67.rlib" "/opt/crater/target/debug/deps/libtime-29b9853d922d9d06.rlib" "/opt/crater/target/debug/deps/librelay-3f19008aefe842e2.rlib" "/opt/crater/target/debug/deps/libpercent_encoding-7ae675a5263db170.rlib" "/opt/crater/target/debug/deps/libnet2-629edbfe8fd82654.rlib" "/opt/crater/target/debug/deps/libmime-2ad0b7e042b7ff0c.rlib" "/opt/crater/target/debug/deps/libunicase-9d7982dbb3c6947a.rlib" "/opt/crater/target/debug/deps/liblog-55cfa8f7ed258bff.rlib" "/opt/crater/target/debug/deps/libcfg_if-3028bdd7b8e15bb5.rlib" "/opt/crater/target/debug/deps/liblanguage_tags-31855a1d4a2b270f.rlib" "/opt/crater/target/debug/deps/libhttparse-edd6757da9f4355f.rlib" "/opt/crater/target/debug/deps/libfutures_cpupool-87b63ccdc3471354.rlib" "/opt/crater/target/debug/deps/libnum_cpus-509d1090a02489e2.rlib" "/opt/crater/target/debug/deps/libbytes-5606c44df78b5c7a.rlib" "/opt/crater/target/debug/deps/libiovec-0aff63894148ec6b.rlib" "/opt/crater/target/debug/deps/libbase64-cf420233ba873e07.rlib" "/opt/crater/target/debug/deps/libsafemem-5cbc828c43f41378.rlib" "/opt/crater/target/debug/deps/libhex-979204dee82ccb65.rlib" "/opt/crater/target/debug/deps/libfutures-2204f6374ace2c39.rlib" "/opt/crater/target/debug/deps/libclap-9325301b67a3eb11.rlib" "/opt/crater/target/debug/deps/libvec_map-d1ee0a45638c2bc7.rlib" "/opt/crater/target/debug/deps/libtextwrap-98d6d8750638b4d6.rlib" "/opt/crater/target/debug/deps/libunicode_width-70ef077428dd4d3c.rlib" "/opt/crater/target/debug/deps/libstrsim-7aece6a3d121dad3.rlib" "/opt/crater/target/debug/deps/libbitflags-bcd34e8f74846360.rlib" "/opt/crater/target/debug/deps/libatty-eb5da56e70a939cc.rlib" "/opt/crater/target/debug/deps/liblibc-d019039477cac03b.rlib" "/opt/crater/target/debug/deps/libansi_term-ab3d266e25626249.rlib" "/opt/crater/target/debug/deps/libbyteorder-585fd2581aa01382.rlib" "/opt/crater/target/debug/deps/libblake2-4d46b20258e1f375.rlib" "/opt/crater/target/debug/deps/libcrypto_mac-1c3b61d2c92a514b.rlib" "/opt/crater/target/debug/deps/libconstant_time_eq-e6db6cfbf417c0a0.rlib" "/opt/crater/target/debug/deps/libdigest-30f93245539468f2.rlib" "/opt/crater/target/debug/deps/libgeneric_array-8ec2d879b1ae6574.rlib" "/opt/crater/target/debug/deps/libtypenum-49005c187b93bc71.rlib" "/opt/crater/target/debug/deps/libbyte_tools-e0808b81140be31c.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" "-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 `nano-work-server`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "dfb7f1b37cb649439263cd99cfccdff6f009d9942ae118c26e2e889df94780f8"` [INFO] running `"docker" "rm" "-f" "dfb7f1b37cb649439263cd99cfccdff6f009d9942ae118c26e2e889df94780f8"` [INFO] [stdout] dfb7f1b37cb649439263cd99cfccdff6f009d9942ae118c26e2e889df94780f8