[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 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-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "build" "--frozen"` [INFO] [stdout] 41fdbf96c66a915b2167f8157737786fffbd2930bd83829b2d4932a199c1d5b5 [INFO] running `"docker" "start" "-a" "41fdbf96c66a915b2167f8157737786fffbd2930bd83829b2d4932a199c1d5b5"` [INFO] [stderr] Compiling ocl-core v0.9.0 [INFO] [stderr] Compiling parking_lot v0.5.5 [INFO] [stderr] Compiling tokio-threadpool v0.1.15 [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] Compiling hyper v0.11.27 [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 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/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/nano_work_server-5f80c908c74804d9.nano_work_server.ehv0ba1c-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-5f80c908c74804d9.nano_work_server.ehv0ba1c-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-5f80c908c74804d9.nano_work_server.ehv0ba1c-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-5f80c908c74804d9.nano_work_server.ehv0ba1c-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-5f80c908c74804d9.nano_work_server.ehv0ba1c-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-5f80c908c74804d9.nano_work_server.ehv0ba1c-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-5f80c908c74804d9.nano_work_server.ehv0ba1c-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-5f80c908c74804d9.nano_work_server.ehv0ba1c-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-5f80c908c74804d9.nano_work_server.ehv0ba1c-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-5f80c908c74804d9.nano_work_server.ehv0ba1c-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-5f80c908c74804d9.nano_work_server.ehv0ba1c-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-5f80c908c74804d9.nano_work_server.ehv0ba1c-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-5f80c908c74804d9.nano_work_server.ehv0ba1c-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-5f80c908c74804d9.nano_work_server.ehv0ba1c-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-5f80c908c74804d9.nano_work_server.ehv0ba1c-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/nano_work_server-5f80c908c74804d9.nano_work_server.ehv0ba1c-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/nano_work_server-5f80c908c74804d9" "/opt/crater/target/debug/deps/nano_work_server-5f80c908c74804d9.4hxkli7cuccsl40a.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-d5ae900bfde9750d/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/libserde_json-0c53888b338bdcbb.rlib" "/opt/crater/target/debug/deps/libryu-a9583eff3872e809.rlib" "/opt/crater/target/debug/deps/libitoa-fbd08118d5c2ed14.rlib" "/opt/crater/target/debug/deps/libserde-5125a48878b1da57.rlib" "/opt/crater/target/debug/deps/libparking_lot-650a4be1c6d3a2fe.rlib" "/opt/crater/target/debug/deps/libparking_lot_core-bff390a8b135a76d.rlib" "/opt/crater/target/debug/deps/libowning_ref-ac29b4f5b10168db.rlib" "/opt/crater/target/debug/deps/libocl-a2b65bed576f4859.rlib" "/opt/crater/target/debug/deps/libqutex-d0f8577d80205f0e.rlib" "/opt/crater/target/debug/deps/libcrossbeam-6682568b711da4a9.rlib" "/opt/crater/target/debug/deps/libcrossbeam_channel-d970ccf301adf1a2.rlib" 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"/opt/crater/target/debug/deps/libmio-abd445e00221b11c.rlib" "/opt/crater/target/debug/deps/libslab-9297145f06665f9b.rlib" "/opt/crater/target/debug/deps/libtime-c375bf02baafb2fd.rlib" "/opt/crater/target/debug/deps/librelay-460c744d98761814.rlib" "/opt/crater/target/debug/deps/libpercent_encoding-b2b1eddedcc9d5cc.rlib" "/opt/crater/target/debug/deps/libnet2-bb453ffc26c3f792.rlib" "/opt/crater/target/debug/deps/libmime-08b233499a8575f9.rlib" "/opt/crater/target/debug/deps/libunicase-f706828e628bdd0b.rlib" "/opt/crater/target/debug/deps/liblog-6796845c78a3960b.rlib" "/opt/crater/target/debug/deps/libcfg_if-c978b2f886ff1de7.rlib" "/opt/crater/target/debug/deps/liblanguage_tags-05e049e3a82cbfb0.rlib" "/opt/crater/target/debug/deps/libhttparse-c28176d01bc731e0.rlib" "/opt/crater/target/debug/deps/libfutures_cpupool-06d6ecfc654c76f9.rlib" "/opt/crater/target/debug/deps/libnum_cpus-b569161181e0c021.rlib" "/opt/crater/target/debug/deps/libbytes-ed85d24d60fcc292.rlib" "/opt/crater/target/debug/deps/libiovec-700e4a654a679356.rlib" "/opt/crater/target/debug/deps/libbase64-cc637031afaea5c5.rlib" "/opt/crater/target/debug/deps/libsafemem-a19c8ef0327c60ac.rlib" "/opt/crater/target/debug/deps/libhex-cfcedefda878ea76.rlib" "/opt/crater/target/debug/deps/libfutures-f60afb80ba7dd5f9.rlib" "/opt/crater/target/debug/deps/libclap-946176546f1bfef1.rlib" "/opt/crater/target/debug/deps/libvec_map-dfe47d7ef870925b.rlib" "/opt/crater/target/debug/deps/libtextwrap-648e6ff45e87fdf7.rlib" "/opt/crater/target/debug/deps/libunicode_width-c482f247a0e67224.rlib" "/opt/crater/target/debug/deps/libstrsim-71052c127de7173f.rlib" "/opt/crater/target/debug/deps/libbitflags-c2b055ef483e7b37.rlib" "/opt/crater/target/debug/deps/libatty-22eb3b2ac1d714c2.rlib" "/opt/crater/target/debug/deps/liblibc-37f3d1c853b3b7bd.rlib" "/opt/crater/target/debug/deps/libansi_term-8091014737d4fb0a.rlib" "/opt/crater/target/debug/deps/libbyteorder-98f71e4258b709b0.rlib" "/opt/crater/target/debug/deps/libblake2-e6bbe08a4e9996d5.rlib" "/opt/crater/target/debug/deps/libcrypto_mac-e876be11a7b390d2.rlib" "/opt/crater/target/debug/deps/libconstant_time_eq-0542c811c1fc7abe.rlib" "/opt/crater/target/debug/deps/libdigest-d3356bc4a9d52d31.rlib" "/opt/crater/target/debug/deps/libgeneric_array-140c1214fcc2614e.rlib" "/opt/crater/target/debug/deps/libtypenum-ad63c9a6e6a7b644.rlib" "/opt/crater/target/debug/deps/libbyte_tools-f708a026d0bb571e.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 `nano-work-server`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "41fdbf96c66a915b2167f8157737786fffbd2930bd83829b2d4932a199c1d5b5"` [INFO] running `"docker" "rm" "-f" "41fdbf96c66a915b2167f8157737786fffbd2930bd83829b2d4932a199c1d5b5"` [INFO] [stdout] 41fdbf96c66a915b2167f8157737786fffbd2930bd83829b2d4932a199c1d5b5