[INFO] cloning repository https://github.com/xzfred/morelike
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xzfred/morelike" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxzfred%2Fmorelike", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxzfred%2Fmorelike'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0faf7c173456a6105ad9642f17ab2bb5e6270cf0
[INFO] testing xzfred/morelike against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxzfred%2Fmorelike" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xzfred/morelike 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/xzfred/morelike
[INFO] finished tweaking git repo https://github.com/xzfred/morelike
[INFO] tweaked toml for git repo https://github.com/xzfred/morelike written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/xzfred/morelike 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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c4176e5b3569b204079e4a7a3d81719e0ff7a218a0dca1721c9b56ec0af18689
[INFO] running `Command { std: "docker" "start" "-a" "c4176e5b3569b204079e4a7a3d81719e0ff7a218a0dca1721c9b56ec0af18689", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4176e5b3569b204079e4a7a3d81719e0ff7a218a0dca1721c9b56ec0af18689", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4176e5b3569b204079e4a7a3d81719e0ff7a218a0dca1721c9b56ec0af18689", kill_on_drop: false }`
[INFO] [stdout] c4176e5b3569b204079e4a7a3d81719e0ff7a218a0dca1721c9b56ec0af18689
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d6d06354aa365edaa043538c1d2e10f34e1ca82ef7c7c20f37433ea702a8422e
[INFO] running `Command { std: "docker" "start" "-a" "d6d06354aa365edaa043538c1d2e10f34e1ca82ef7c7c20f37433ea702a8422e", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling slab v0.4.1
[INFO] [stderr]    Compiling lazycell v1.2.0
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling quick-error v1.2.1
[INFO] [stderr]    Compiling termcolor v0.3.5
[INFO] [stderr]    Compiling ansi_term v0.10.2
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling atty v0.2.8
[INFO] [stderr]    Compiling mach v0.2.3
[INFO] [stderr]    Compiling tokio-executor v0.1.5
[INFO] [stderr]    Compiling regex-syntax v0.5.3
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling humantime v1.1.1
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling tokio-timer v0.2.7
[INFO] [stderr]    Compiling bytes v0.4.10
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling crossbeam-deque v0.6.1
[INFO] [stderr]    Compiling tokio-io v0.1.10
[INFO] [stderr]    Compiling tokio-threadpool v0.1.8
[INFO] [stderr]    Compiling tokio-reactor v0.1.3
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling tokio-udp v0.1.2
[INFO] [stderr]    Compiling tokio-tcp v0.1.2
[INFO] [stderr]    Compiling tokio-fs v0.1.4
[INFO] [stderr]    Compiling tokio v0.1.7
[INFO] [stderr]    Compiling env_logger v0.5.6
[INFO] [stderr]    Compiling pretty_env_logger v0.2.2
[INFO] [stderr]    Compiling morelike v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `getThreadNum` should have a snake case name
[INFO] [stdout]   --> src/main.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn getThreadNum() {
[INFO] [stdout]    |    ^^^^^^^^^^^^ help: convert the identifier to snake case: `get_thread_num`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` 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/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/morelike-05f46084642dfc08.morelike.99jatxst-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/morelike-05f46084642dfc08.morelike.99jatxst-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/morelike-05f46084642dfc08.morelike.99jatxst-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/morelike-05f46084642dfc08.morelike.99jatxst-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/morelike-05f46084642dfc08.morelike.99jatxst-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/morelike-05f46084642dfc08.morelike.99jatxst-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/morelike-05f46084642dfc08.morelike.99jatxst-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/morelike-05f46084642dfc08.morelike.99jatxst-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/morelike-05f46084642dfc08.morelike.99jatxst-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/morelike-05f46084642dfc08.morelike.99jatxst-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/morelike-05f46084642dfc08.morelike.99jatxst-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/morelike-05f46084642dfc08.morelike.99jatxst-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/morelike-05f46084642dfc08.morelike.99jatxst-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/morelike-05f46084642dfc08.morelike.99jatxst-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/morelike-05f46084642dfc08.morelike.99jatxst-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/morelike-05f46084642dfc08.morelike.99jatxst-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/morelike-05f46084642dfc08" "/opt/rustwide/target/debug/deps/morelike-05f46084642dfc08.18w0zfd5pnkryzsj.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-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/libmach-28a3752024cf4787.rlib" "/opt/rustwide/target/debug/deps/libtokio-1527bd700a38884e.rlib" "/opt/rustwide/target/debug/deps/libtokio_udp-8de6dba16613825a.rlib" "/opt/rustwide/target/debug/deps/libtokio_codec-37e48214ad381038.rlib" "/opt/rustwide/target/debug/deps/libtokio_tcp-a2af90f9b055049c.rlib" "/opt/rustwide/target/debug/deps/libtokio_timer-2d968a83a34b6fbd.rlib" "/opt/rustwide/target/debug/deps/libtokio_reactor-7d59dd519977c751.rlib" "/opt/rustwide/target/debug/deps/libmio-7e4610ce0ab4636c.rlib" "/opt/rustwide/target/debug/deps/libslab-cc8cd3ef7a3494fc.rlib" "/opt/rustwide/target/debug/deps/libnet2-b1028f95784327ad.rlib" "/opt/rustwide/target/debug/deps/liblazycell-bc8205e47bc429ef.rlib" "/opt/rustwide/target/debug/deps/libtokio_fs-25363eaf4f088651.rlib" "/opt/rustwide/target/debug/deps/libtokio_threadpool-310eec1e5a75afda.rlib" "/opt/rustwide/target/debug/deps/librand-a47232235309a9c6.rlib" "/opt/rustwide/target/debug/deps/librand_core-e576ed17f12cef2e.rlib" "/opt/rustwide/target/debug/deps/librand_core-741068a56e7d3da6.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-08e80ee0a6f1f6be.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_deque-1c92133afd537123.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_epoch-8c6162f0e2054b72.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-c0e1396086f307bb.rlib" "/opt/rustwide/target/debug/deps/libmemoffset-e9bde307deef8c75.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-367d6a9931b9b332.rlib" "/opt/rustwide/target/debug/deps/libarrayvec-42c3bdb28b639751.rlib" "/opt/rustwide/target/debug/deps/libnodrop-9cbcd2660bcf4f7e.rlib" "/opt/rustwide/target/debug/deps/libtokio_executor-7d1a9ad5438d45b7.rlib" "/opt/rustwide/target/debug/deps/libtokio_io-7bddfc31c5e5eb59.rlib" "/opt/rustwide/target/debug/deps/libbytes-e782b72b9e62d396.rlib" "/opt/rustwide/target/debug/deps/libiovec-4c071d55f2e1ee79.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-110247fca8b15226.rlib" "/opt/rustwide/target/debug/deps/libfutures-831ab763bc137a12.rlib" "/opt/rustwide/target/debug/deps/libpretty_env_logger-90ce95e3e8b6afe9.rlib" "/opt/rustwide/target/debug/deps/libenv_logger-f59e322e587b7f25.rlib" "/opt/rustwide/target/debug/deps/libregex-e238840a21b1fb1a.rlib" "/opt/rustwide/target/debug/deps/libutf8_ranges-d12ce58d70084144.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-b8496594da8caa87.rlib" "/opt/rustwide/target/debug/deps/libucd_util-83a9de332669bcbb.rlib" "/opt/rustwide/target/debug/deps/libthread_local-97cabe15ddbd182f.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-8ecd7f2ccd4c8fd1.rlib" "/opt/rustwide/target/debug/deps/libunreachable-c7876f1e3de87b4b.rlib" "/opt/rustwide/target/debug/deps/libvoid-cff1fbb51120ba49.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-2d6c6f65b026aad9.rlib" "/opt/rustwide/target/debug/deps/libmemchr-f43fe516244320d5.rlib" "/opt/rustwide/target/debug/deps/libatty-aa7b479f6e245652.rlib" "/opt/rustwide/target/debug/deps/liblibc-c35dc2c2514abcfb.rlib" "/opt/rustwide/target/debug/deps/libhumantime-31f59635c77e2ebf.rlib" "/opt/rustwide/target/debug/deps/libquick_error-e87c3f59466fdb07.rlib" "/opt/rustwide/target/debug/deps/libtermcolor-8aa14f0e88784d60.rlib" "/opt/rustwide/target/debug/deps/libansi_term-76fd54e8870ae944.rlib" "/opt/rustwide/target/debug/deps/liblog-38e49889e2943a68.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-eb5ecedec54aa001.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" "-lutil" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/morelike-05f46084642dfc08.morelike.99jatxst-cgu.0.rcgu.o: in function `morelike::getThreadNum':
[INFO] [stdout]           /opt/rustwide/workdir/src/main.rs:40: undefined reference to `task_for_pid'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/workdir/src/main.rs:45: undefined reference to `task_threads'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libmach-28a3752024cf4787.rlib(mach-28a3752024cf4787.mach.10lqzd82-cgu.15.rcgu.o): in function `mach::traps::mach_task_self':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mach-0.2.3/src/traps.rs:15: undefined reference to `mach_task_self_'
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `morelike`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "d6d06354aa365edaa043538c1d2e10f34e1ca82ef7c7c20f37433ea702a8422e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6d06354aa365edaa043538c1d2e10f34e1ca82ef7c7c20f37433ea702a8422e", kill_on_drop: false }`
[INFO] [stdout] d6d06354aa365edaa043538c1d2e10f34e1ca82ef7c7c20f37433ea702a8422e