[INFO] cloning repository https://github.com/AdamHarries/task_opencl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AdamHarries/task_opencl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdamHarries%2Ftask_opencl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdamHarries%2Ftask_opencl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d68f84960013c215289c9a5a1631f9a393b1420d
[INFO] testing AdamHarries/task_opencl against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAdamHarries%2Ftask_opencl" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AdamHarries/task_opencl on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AdamHarries/task_opencl
[INFO] finished tweaking git repo https://github.com/AdamHarries/task_opencl
[INFO] tweaked toml for git repo https://github.com/AdamHarries/task_opencl written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/AdamHarries/task_opencl already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/AdamHarries/rust-opencl.git`
[INFO] [stderr] error: the lock file /workspace/builds/worker-1/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/AdamHarries/rust-opencl.git`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 900e034eb9785a0113c36708ea717a4b1d9ca58f40a06f88621262fd21d3a411
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "900e034eb9785a0113c36708ea717a4b1d9ca58f40a06f88621262fd21d3a411", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "900e034eb9785a0113c36708ea717a4b1d9ca58f40a06f88621262fd21d3a411", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "900e034eb9785a0113c36708ea717a4b1d9ca58f40a06f88621262fd21d3a411", kill_on_drop: false }`
[INFO] [stdout] 900e034eb9785a0113c36708ea717a4b1d9ca58f40a06f88621262fd21d3a411
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 181567ddc7fb002b9415ef15ff69b4a2959e9bc0f92de7f4b61cda8c7de6df95
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "181567ddc7fb002b9415ef15ff69b4a2959e9bc0f92de7f4b61cda8c7de6df95", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling libc v0.1.12
[INFO] [stderr]    Compiling log v0.3.9
[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/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/queue.rs:21:10
[INFO] [stdout]    |
[INFO] [stdout] 21 |         for i in 0..queue_length {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `string_from_slice`
[INFO] [stdout]   --> src/bin/queue.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn string_from_slice<T: fmt::Display>(slice: &[T]) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/queue-58967b3fc00bffee.queue.9jd720q5-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/queue-58967b3fc00bffee.queue.9jd720q5-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/queue-58967b3fc00bffee.queue.9jd720q5-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/queue-58967b3fc00bffee.queue.9jd720q5-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/queue-58967b3fc00bffee.queue.9jd720q5-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/queue-58967b3fc00bffee.queue.9jd720q5-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/queue-58967b3fc00bffee.queue.9jd720q5-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/queue-58967b3fc00bffee.queue.9jd720q5-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/queue-58967b3fc00bffee.queue.9jd720q5-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/queue-58967b3fc00bffee.queue.9jd720q5-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/queue-58967b3fc00bffee.queue.9jd720q5-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/queue-58967b3fc00bffee.queue.9jd720q5-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/queue-58967b3fc00bffee.queue.9jd720q5-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/queue-58967b3fc00bffee.queue.9jd720q5-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/queue-58967b3fc00bffee.queue.9jd720q5-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/queue-58967b3fc00bffee.queue.9jd720q5-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/queue-58967b3fc00bffee" "/opt/rustwide/target/debug/deps/queue-58967b3fc00bffee.egoljyuhkmvbfaq.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libopencl-281ff2929d417801.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-79520e0e29712984.rlib" "/opt/rustwide/target/debug/deps/liblog-52380cf0a073a9b0.rlib" "/opt/rustwide/target/debug/deps/liblog-4bf1047162af990b.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-4c6be1962c556cf0.rlib" "/opt/rustwide/target/debug/deps/liblibc-12307ab64947e305.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-c659455244c9d2ca.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-448643d99e633b5d.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-c7c3d631a525883a.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-d7659a11bb201e01.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-9aceb6f83a33a9b6.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-876c3057c8a2a7c2.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-2f02aa3e24d2aa49.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-1d4694108f8cb543.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-79eaa6e630880f50.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-0df1a4ec96f80cf7.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-bba9b0f0f4d77257.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-f848f9c987265235.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-0d5ea4f2d39b8e27.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-c22053fa5fc00a3b.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-c52e5d6301e1bd59.rlib" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-2675a9a46b5cec89.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/eafdee2dfae8c2233b74f98b123308be7ccefcc6/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-6e3d052afeb9f711.rlib" "-Wl,-Bdynamic" "-lOpenCL" "-lc" "-lm" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lOpenCL
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `task-opencl`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "181567ddc7fb002b9415ef15ff69b4a2959e9bc0f92de7f4b61cda8c7de6df95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "181567ddc7fb002b9415ef15ff69b4a2959e9bc0f92de7f4b61cda8c7de6df95", kill_on_drop: false }`
[INFO] [stdout] 181567ddc7fb002b9415ef15ff69b4a2959e9bc0f92de7f4b61cda8c7de6df95