[INFO] updating cached repository AdamHarries/task_opencl [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/AdamHarries/task_opencl [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/AdamHarries/task_opencl" "work/ex/beta-1.37-6/sources/1.36.0/gh/AdamHarries/task_opencl"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/AdamHarries/task_opencl'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/AdamHarries/task_opencl" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AdamHarries/task_opencl"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AdamHarries/task_opencl'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] d68f84960013c215289c9a5a1631f9a393b1420d [INFO] sha for GitHub repo AdamHarries/task_opencl: d68f84960013c215289c9a5a1631f9a393b1420d [INFO] validating manifest of AdamHarries/task_opencl on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of AdamHarries/task_opencl on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing AdamHarries/task_opencl [INFO] finished frobbing AdamHarries/task_opencl [INFO] frobbed toml for AdamHarries/task_opencl written to work/ex/beta-1.37-6/sources/1.36.0/gh/AdamHarries/task_opencl/Cargo.toml [INFO] started frobbing AdamHarries/task_opencl [INFO] finished frobbing AdamHarries/task_opencl [INFO] frobbed toml for AdamHarries/task_opencl written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/AdamHarries/task_opencl/Cargo.toml [INFO] crate AdamHarries/task_opencl already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/AdamHarries/task_opencl/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needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] Updating git repository `https://github.com/AdamHarries/rust-opencl.git` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] Updating git repository `https://github.com/AdamHarries/rust-opencl.git` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] testing AdamHarries/task_opencl against 1.36.0 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/AdamHarries/task_opencl:/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" "+1.36.0" "build" "--frozen"` [INFO] [stdout] de5163d6faf9dc2f11ec80205d2d5b447a433ce54fef9de463ab855dec2d155d [INFO] running `"docker" "start" "-a" "de5163d6faf9dc2f11ec80205d2d5b447a433ce54fef9de463ab855dec2d155d"` [INFO] [stderr] Compiling opencl v0.3.0-dev (https://github.com/AdamHarries/rust-opencl.git#f98b4a4c) [INFO] [stderr] Compiling task-opencl v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/bin/queue.rs:21:10 [INFO] [stderr] | [INFO] [stderr] 21 | for i in 0..queue_length { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `string_from_slice` [INFO] [stderr] --> src/bin/queue.rs:64:1 [INFO] [stderr] | [INFO] [stderr] 64 | fn string_from_slice(slice: &[T]) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [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/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/queue-ff20e158b1f9d3e3.queue.92d50a88-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/queue-ff20e158b1f9d3e3.queue.92d50a88-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/queue-ff20e158b1f9d3e3.queue.92d50a88-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/queue-ff20e158b1f9d3e3.queue.92d50a88-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/queue-ff20e158b1f9d3e3.queue.92d50a88-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/queue-ff20e158b1f9d3e3.queue.92d50a88-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/queue-ff20e158b1f9d3e3.queue.92d50a88-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/queue-ff20e158b1f9d3e3.queue.92d50a88-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/queue-ff20e158b1f9d3e3.queue.92d50a88-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/queue-ff20e158b1f9d3e3.queue.92d50a88-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/queue-ff20e158b1f9d3e3.queue.92d50a88-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/queue-ff20e158b1f9d3e3.queue.92d50a88-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/queue-ff20e158b1f9d3e3.queue.92d50a88-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/queue-ff20e158b1f9d3e3.queue.92d50a88-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/queue-ff20e158b1f9d3e3.queue.92d50a88-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/queue-ff20e158b1f9d3e3.queue.92d50a88-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/queue-ff20e158b1f9d3e3" "/opt/crater/target/debug/deps/queue-ff20e158b1f9d3e3.t7zzewrpounfcgr.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libopencl-ca2a6b396fc676b7.rlib" "/opt/crater/target/debug/deps/liblazy_static-318544a807a94655.rlib" "/opt/crater/target/debug/deps/liblog-a60233c9189805c1.rlib" "/opt/crater/target/debug/deps/liblog-481c00b0f76d55f6.rlib" "/opt/crater/target/debug/deps/libcfg_if-29b6f8db75d699b1.rlib" "/opt/crater/target/debug/deps/liblibc-f3c88a91d9cbe10b.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-9895e8982b0a79e7.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-57306b8ed3378a0e.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-54463ae5adae3649.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-d99667b199a9875a.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-51f4300e102199f5.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-b3ccf1f7737a6a91.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-157c37a3ceb78853.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-505bcee45aafb736.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-c29abd529ba4452b.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-895383a3232f6572.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-5594cb4f559bc761.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-38e90baf978bc428.rlib" "-Wl,-Bdynamic" "-lOpenCL" "-lc" "-lm" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil" [INFO] [stderr] = note: /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 `task-opencl`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "de5163d6faf9dc2f11ec80205d2d5b447a433ce54fef9de463ab855dec2d155d"` [INFO] running `"docker" "rm" "-f" "de5163d6faf9dc2f11ec80205d2d5b447a433ce54fef9de463ab855dec2d155d"` [INFO] [stdout] de5163d6faf9dc2f11ec80205d2d5b447a433ce54fef9de463ab855dec2d155d