[INFO] cloning repository https://github.com/NicolasLagaillardie/mqtt_client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NicolasLagaillardie/mqtt_client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNicolasLagaillardie%2Fmqtt_client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNicolasLagaillardie%2Fmqtt_client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1855275b60e7b62c4d4fa94da631d7a6ac101ac8
[INFO] testing NicolasLagaillardie/mqtt_client against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNicolasLagaillardie%2Fmqtt_client" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NicolasLagaillardie/mqtt_client on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/NicolasLagaillardie/mqtt_client
[INFO] finished tweaking git repo https://github.com/NicolasLagaillardie/mqtt_client
[INFO] tweaked toml for git repo https://github.com/NicolasLagaillardie/mqtt_client written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/NicolasLagaillardie/mqtt_client already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46a3ab4e8f41f2348c064065dc7a56a52a6f0bca1b5f86a4e8fe33c3c90f333e
[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" "46a3ab4e8f41f2348c064065dc7a56a52a6f0bca1b5f86a4e8fe33c3c90f333e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46a3ab4e8f41f2348c064065dc7a56a52a6f0bca1b5f86a4e8fe33c3c90f333e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46a3ab4e8f41f2348c064065dc7a56a52a6f0bca1b5f86a4e8fe33c3c90f333e", kill_on_drop: false }`
[INFO] [stdout] 46a3ab4e8f41f2348c064065dc7a56a52a6f0bca1b5f86a4e8fe33c3c90f333e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03164913b2345825d499712b89bcbd87cdf4ee661b02b8bdeb5371fd8a1198d3
[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" "03164913b2345825d499712b89bcbd87cdf4ee661b02b8bdeb5371fd8a1198d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.7
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling cl-sys v0.4.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling sys-info v0.5.8
[INFO] [stderr]    Compiling futures-timer v0.1.1
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling nix v0.8.1
[INFO] [stderr]    Compiling memoffset v0.5.2
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling openssl v0.10.25
[INFO] [stderr]    Compiling uuid v0.4.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling paho-mqtt-sys v0.2.1
[INFO] [stderr]    Compiling ocl-core v0.11.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling crossbeam v0.7.2
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling qutex v0.2.3
[INFO] [stderr]    Compiling ifaces v0.1.0 (https://github.com/LuoZijun/rust-ifaces.git#91bd5b26)
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling paho-mqtt v0.6.0
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling synstructure v0.12.1
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling ocl-core-vector v0.1.0
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling ocl v0.19.3
[INFO] [stderr]    Compiling mqtt_client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Device`, `Platform`
[INFO] [stdout]   --> src/lib.rs:32:11
[INFO] [stdout]    |
[INFO] [stdout] 32 | use ocl::{Device, Platform};
[INFO] [stdout]    |           ^^^^^^  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[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/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/mqtt_client-bed7ceee3e447905.mqtt_client.1u6h84f7-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/mqtt_client-bed7ceee3e447905.mqtt_client.1u6h84f7-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/mqtt_client-bed7ceee3e447905.mqtt_client.1u6h84f7-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/mqtt_client-bed7ceee3e447905.mqtt_client.1u6h84f7-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/mqtt_client-bed7ceee3e447905.mqtt_client.1u6h84f7-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/mqtt_client-bed7ceee3e447905.mqtt_client.1u6h84f7-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/mqtt_client-bed7ceee3e447905.mqtt_client.1u6h84f7-cgu.6.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/mqtt_client-bed7ceee3e447905" "/opt/rustwide/target/debug/deps/mqtt_client-bed7ceee3e447905.4z6mjfibknxpdfnn.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-9ad36710fb8a7c6a/out" "-L" "/opt/rustwide/target/debug/build/paho-mqtt-sys-5873742a4067759b/out/lib" "-L" "/opt/rustwide/target/debug/build/sys-info-619b87bda7ced3a5/out" "-L" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libmqtt_client-5c014487cec3dbed.rlib" "/opt/rustwide/target/debug/deps/libocl-1e4abae38db6b9e2.rlib" "/opt/rustwide/target/debug/deps/libqutex-fe3f325fdca2bf65.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam-07585a37b0f48bb1.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_queue-b3fa438e8e19636a.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_channel-1c68e6f96713c700.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_deque-57c4d3c837198554.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_epoch-64a10b11d5be0f03.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-fcd8504577a1291d.rlib" "/opt/rustwide/target/debug/deps/libmemoffset-ae005b5d14515f85.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-3be34dd288910dfc.rlib" "/opt/rustwide/target/debug/deps/libarrayvec-dca24f2d8df951bb.rlib" "/opt/rustwide/target/debug/deps/libnodrop-66854b726d1a5e83.rlib" "/opt/rustwide/target/debug/deps/libocl_core-0e6ee456cbe0ad5f.rlib" "/opt/rustwide/target/debug/deps/libcl_sys-5414ec5a7892351a.rlib" "/opt/rustwide/target/debug/deps/libocl_core_vector-a29d7d04ab82ccf9.rlib" "/opt/rustwide/target/debug/deps/libnum-24031dfbff6bb484.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-68822fa67cc164c9.rlib" "/opt/rustwide/target/debug/deps/libnum_bigint-484eb5efbd942cd3.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-de6582f3bbd0a785.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-f0191a5865153270.rlib" "/opt/rustwide/target/debug/deps/libnum_complex-85a30251a4683162.rlib" "/opt/rustwide/target/debug/deps/librustc_serialize-cf160550f07bf347.rlib" "/opt/rustwide/target/debug/deps/libenum_primitive-61a610ecdff51232.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-c7529b649b57d754.rlib" "/opt/rustwide/target/debug/deps/libfailure-273b96dfb017540d.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-65bc5e4863eb7dca.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-c2dfa8da7d472607.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-cd0ead7d00ad78db.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-af042de286282d2a.rlib" "/opt/rustwide/target/debug/deps/libuuid-4910eca723da20bc.rlib" "/opt/rustwide/target/debug/deps/librand-bd958f0045fde709.rlib" "/opt/rustwide/target/debug/deps/librand-b3803ccc26d6c1fa.rlib" "/opt/rustwide/target/debug/deps/libsys_info-576aa06104e75be2.rlib" "/opt/rustwide/target/debug/deps/libopenssl-5c75ac6efcdc2be4.rlib" "/opt/rustwide/target/debug/deps/libopenssl_sys-bdb1aa6da169238b.rlib" "/opt/rustwide/target/debug/deps/libforeign_types-a8021f93a490c2c6.rlib" "/opt/rustwide/target/debug/deps/libforeign_types_shared-16ec2b602d960524.rlib" "/opt/rustwide/target/debug/deps/libbitflags-de31228f2c0549ed.rlib" "/opt/rustwide/target/debug/deps/libpaho_mqtt-04a7226879981a09.rlib" "/opt/rustwide/target/debug/deps/libpaho_mqtt_sys-50af2b787a42bead.rlib" "/opt/rustwide/target/debug/deps/libfutures_timer-469db0d64bfa15b0.rlib" "/opt/rustwide/target/debug/deps/libenv_logger-a9eec4c98398efe6.rlib" "/opt/rustwide/target/debug/deps/libregex-793a8f76057c4ed1.rlib" "/opt/rustwide/target/debug/deps/libthread_local-21d2226dcef1caef.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-bdaffc3be0f3e345.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-ee0656721ec4d0c0.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-be8016d9bab4328f.rlib" "/opt/rustwide/target/debug/deps/libmemchr-890d7f6e4d8388fd.rlib" "/opt/rustwide/target/debug/deps/libatty-f99515d52bee8f21.rlib" "/opt/rustwide/target/debug/deps/liblibc-6508bbe9ff521b76.rlib" "/opt/rustwide/target/debug/deps/libhumantime-6e946c39ae5ce667.rlib" "/opt/rustwide/target/debug/deps/libquick_error-b53ed76d1e616d3d.rlib" "/opt/rustwide/target/debug/deps/libtermcolor-f91e3725e9042464.rlib" "/opt/rustwide/target/debug/deps/liblog-1761913616bdc5f1.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-b10e0993eefc366b.rlib" "/opt/rustwide/target/debug/deps/libfutures-f7032f10c30c3cc1.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e12de7683a34c500.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-446a53c2e468675f.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-86fef9fb252a2d33.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-3bed9bfd30304751.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-0e38eeb474a7b386.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-a846ed547b824740.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-c9540f0a4fb9265d.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-7d2ca66c92c356eb.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-147e2c808f949493.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-bd2a4369506670e9.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-74bfdd0ce7d0ed48.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-6777f47f1c491841.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-b104f1790174f2be.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-db37898996f45c13.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-25b7435131fc4938.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-9d4b6f3c097e876e.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-3f953ad652ab829a.rlib" "-Wl,-Bdynamic" "-lOpenCL" "-lOpenCL" "-lssl" "-lcrypto" "-lssl" "-lcrypto" "-lutil" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lOpenCL
[INFO] [stdout]           /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
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mqtt_client`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "03164913b2345825d499712b89bcbd87cdf4ee661b02b8bdeb5371fd8a1198d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03164913b2345825d499712b89bcbd87cdf4ee661b02b8bdeb5371fd8a1198d3", kill_on_drop: false }`
[INFO] [stdout] 03164913b2345825d499712b89bcbd87cdf4ee661b02b8bdeb5371fd8a1198d3