[INFO] updating cached repository collabook/core
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/collabook/core
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/collabook/core" "work/ex/beta-1.38-1/sources/1.37.0/gh/collabook/core"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/collabook/core'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/collabook/core" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/collabook/core"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/collabook/core'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6bfee3de1eb815caafcbb8f5a70fbf8cd90a4152
[INFO] sha for GitHub repo collabook/core: 6bfee3de1eb815caafcbb8f5a70fbf8cd90a4152
[INFO] validating manifest of collabook/core 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 collabook/core 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 collabook/core
[INFO] finished frobbing collabook/core
[INFO] frobbed toml for collabook/core written to work/ex/beta-1.38-1/sources/1.37.0/gh/collabook/core/Cargo.toml
[INFO] started frobbing collabook/core
[INFO] finished frobbing collabook/core
[INFO] frobbed toml for collabook/core written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/collabook/core/Cargo.toml
[INFO] crate collabook/core already has a lockfile, it will not be regenerated
[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 collabook/core 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-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/collabook/core:/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] 637e6ab7805635e162408f5d454710a4d63beb359c0bfb7f13326bb24d544b3c
[INFO] running `"docker" "start" "-a" "637e6ab7805635e162408f5d454710a4d63beb359c0bfb7f13326bb24d544b3c"`
[INFO] [stderr]    Compiling encoding_rs v0.8.14
[INFO] [stderr]    Compiling wkhtmltox-sys v0.1.2
[INFO] [stderr]    Compiling v_escape v0.3.2
[INFO] [stderr]    Compiling v_htmlescape v0.3.2
[INFO] [stderr]    Compiling actix-web v0.7.18
[INFO] [stderr]    Compiling curl-sys v0.4.16
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling app_dirs v1.2.1
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling resolv-conf v0.6.2
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling nom v4.1.1
[INFO] [stderr]    Compiling combine v3.0.0-beta.1
[INFO] [stderr]    Compiling cookie v0.11.0
[INFO] [stderr]    Compiling libssh2-sys v0.2.11
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling tokio-io v0.1.11
[INFO] [stderr]    Compiling serde_derive v1.0.84
[INFO] [stderr]    Compiling wkhtmltopdf v0.3.0
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling h2 v0.1.14
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling v_escape_derive v0.2.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]    Compiling crossbeam-channel v0.3.6
[INFO] [stderr]    Compiling tokio-reactor v0.1.8
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio-signal v0.2.7
[INFO] [stderr]    Compiling tokio-threadpool v0.1.10
[INFO] [stderr]    Compiling trust-dns-proto v0.6.1
[INFO] [stderr]    Compiling trust-dns-proto v0.5.0
[INFO] [stderr]    Compiling libgit2-sys v0.7.11
[INFO] [stderr]    Compiling tokio-fs v0.1.5
[INFO] [stderr]    Compiling graphql-parser v0.2.0
[INFO] [stderr]    Compiling tokio v0.1.14
[INFO] [stderr]    Compiling trust-dns-resolver v0.10.2
[INFO] [stderr]    Compiling hyper v0.12.20
[INFO] [stderr]    Compiling actix v0.7.9
[INFO] [stderr]    Compiling graphql_client_codegen v0.6.0
[INFO] [stderr]    Compiling hyper-tls v0.3.1
[INFO] [stderr]    Compiling actix-net v0.2.6
[INFO] [stderr]    Compiling reqwest v0.9.8
[INFO] [stderr]    Compiling graphql_query_derive v0.6.0
[INFO] [stderr]    Compiling graphql_client v0.6.0
[INFO] [stderr]    Compiling git2 v0.8.0
[INFO] [stderr]    Compiling core v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/book.rs:101:13
[INFO] [stderr]     |
[INFO] [stderr] 101 |         let mut content: Option<String>;
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` 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/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/core-2082f87af6e78b05.core.4190ddll-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/core-2082f87af6e78b05.core.4190ddll-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/core-2082f87af6e78b05.core.4190ddll-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/core-2082f87af6e78b05.core.4190ddll-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/core-2082f87af6e78b05.core.4190ddll-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/core-2082f87af6e78b05.core.4190ddll-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/core-2082f87af6e78b05.core.4190ddll-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/core-2082f87af6e78b05.core.4190ddll-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/core-2082f87af6e78b05.core.4190ddll-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/core-2082f87af6e78b05.core.4190ddll-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/core-2082f87af6e78b05.core.4190ddll-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/core-2082f87af6e78b05.core.4190ddll-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/core-2082f87af6e78b05.core.4190ddll-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/core-2082f87af6e78b05.core.4190ddll-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/core-2082f87af6e78b05.core.4190ddll-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/core-2082f87af6e78b05.core.4190ddll-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/core-2082f87af6e78b05" "/opt/crater/target/debug/deps/core-2082f87af6e78b05.1snqkxqgrfjz1vdb.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-836ab3c5a798605b/out" "-L" "/opt/crater/target/debug/build/brotli-sys-0e7514df675e257c/out" "-L" "/opt/crater/target/debug/build/ring-d2b6e5ff63324c0f/out" "-L" "/opt/crater/target/debug/build/miniz-sys-b4dcebf7897d1c63/out" "-L" "/opt/crater/target/debug/build/libgit2-sys-cd4e28c6202c42c1/out/build" "-L" "/opt/crater/target/debug/build/curl-sys-ae39d6a6d02d3624/out/build" "-L" "/usr/lib/x86_64-linux-gnu" "-L" "/opt/crater/target/debug/build/libssh2-sys-039e768782d638e7/out/build" "-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/libenv_logger-a6e4e4c38b1d5fe6.rlib" "/opt/crater/target/debug/deps/libatty-8164e5982caa55da.rlib" "/opt/crater/target/debug/deps/libhumantime-fe7582828726b442.rlib" "/opt/crater/target/debug/deps/libtermcolor-9bd564ab7fd672f3.rlib" "/opt/crater/target/debug/deps/libreqwest-a81a63ac0b79e774.rlib" "/opt/crater/target/debug/deps/liblibflate-51f284b37deaef4e.rlib" "/opt/crater/target/debug/deps/libadler32-b7013a55566e2bf0.rlib" "/opt/crater/target/debug/deps/libhyper_tls-48e9a49a1986413a.rlib" "/opt/crater/target/debug/deps/libnative_tls-a73f79be223d739e.rlib" "/opt/crater/target/debug/deps/libopenssl-039e4cb20c9225a6.rlib" "/opt/crater/target/debug/deps/libforeign_types-4eb93eebf43a44d4.rlib" "/opt/crater/target/debug/deps/libforeign_types_shared-e23d8c6f366950c3.rlib" "/opt/crater/target/debug/deps/libhyper-bd02edf3661bc9c7.rlib" "/opt/crater/target/debug/deps/libwant-b6734b52d9412344.rlib" "/opt/crater/target/debug/deps/libtry_lock-61cf02fb622299fa.rlib" "/opt/crater/target/debug/deps/libencoding_rs-798348712259274b.rlib" "/opt/crater/target/debug/deps/libwkhtmltopdf-dda27eed99b299ea.rlib" "/opt/crater/target/debug/deps/liblog-5e88d105e35bd3ad.rlib" "/opt/crater/target/debug/deps/liblazy_static-8e8f275d3efea5b8.rlib" "/opt/crater/target/debug/deps/libthread_id-4a8719fbacb19a00.rlib" "/opt/crater/target/debug/deps/libwkhtmltox_sys-f84aba3c9067bd9b.rlib" "/opt/crater/target/debug/deps/libtoml-52b02213e315c498.rlib" "/opt/crater/target/debug/deps/libgit2-2697aee857d741dc.rlib" "/opt/crater/target/debug/deps/libopenssl_probe-b2544a39eea5fe98.rlib" "/opt/crater/target/debug/deps/liblibgit2_sys-280f1308eb87c145.rlib" "/opt/crater/target/debug/deps/libcurl_sys-80d2e553f7ac9beb.rlib" "/opt/crater/target/debug/deps/liblibssh2_sys-c3cb4df83042ed43.rlib" "/opt/crater/target/debug/deps/libopenssl_sys-7f9ea57be2854010.rlib" "/opt/crater/target/debug/deps/liblibz_sys-76347ff0f23c45c6.rlib" "/opt/crater/target/debug/deps/libchrono-50394e5d99035009.rlib" "/opt/crater/target/debug/deps/libnum_integer-af91671912c7927b.rlib" "/opt/crater/target/debug/deps/libnum_traits-36fa84b8ef65fd30.rlib" "/opt/crater/target/debug/deps/libwalkdir-f45ec6e1ae7cdb2e.rlib" "/opt/crater/target/debug/deps/libsame_file-a0b7a1723fc6f37c.rlib" "/opt/crater/target/debug/deps/libapp_dirs-61d12eb40b06f714.rlib" "/opt/crater/target/debug/deps/libxdg-193870de26dc04c8.rlib" "/opt/crater/target/debug/deps/libactix_web-d9a9e2131d4d8971.rlib" "/opt/crater/target/debug/deps/libactix_net-59609181eb873566.rlib" "/opt/crater/target/debug/deps/libactix-1c00477e64f0e594.rlib" "/opt/crater/target/debug/deps/libtokio_signal-f65f282fefa68d1f.rlib" "/opt/crater/target/debug/deps/libsignal_hook-985b6d08c2d8b666.rlib" "/opt/crater/target/debug/deps/libarc_swap-a4ba214389440a4b.rlib" "/opt/crater/target/debug/deps/libuuid-b57a8d2776b5775e.rlib" "/opt/crater/target/debug/deps/libtrust_dns_resolver-f68cbde7983634b7.rlib" "/opt/crater/target/debug/deps/libtrust_dns_proto-a0645333f005f17c.rlib" "/opt/crater/target/debug/deps/libsocket2-db9c0f681ba93815.rlib" "/opt/crater/target/debug/deps/librand-01a09d7436e07450.rlib" "/opt/crater/target/debug/deps/librand_core-c3f035477d69cff4.rlib" "/opt/crater/target/debug/deps/libresolv_conf-7dc5d43db25e4eaa.rlib" "/opt/crater/target/debug/deps/libhostname-b77a159a1b462528.rlib" "/opt/crater/target/debug/deps/libquick_error-f50ea951eae373ef.rlib" "/opt/crater/target/debug/deps/liblru_cache-9a4606776406ee89.rlib" "/opt/crater/target/debug/deps/liblinked_hash_map-e904498da3d465e3.rlib" "/opt/crater/target/debug/deps/libtower_service-fba94b5e9810c326.rlib" "/opt/crater/target/debug/deps/libv_htmlescape-d3cd17fce7d334e8.rlib" "/opt/crater/target/debug/deps/libv_escape-154ba7ccd3009b28.rlib" "/opt/crater/target/debug/deps/libserde_json-bddc5524c5564782.rlib" "/opt/crater/target/debug/deps/libryu-511d1a21231511ed.rlib" "/opt/crater/target/debug/deps/libserde_urlencoded-a2e04ba44be0d5a9.rlib" "/opt/crater/target/debug/deps/libdtoa-e856206cc2b690b3.rlib" "/opt/crater/target/debug/deps/libh2-b252d41cb5585afa.rlib" "/opt/crater/target/debug/deps/libindexmap-c7cd05bfac3137cd.rlib" "/opt/crater/target/debug/deps/libstring-4fa5993aab7e19e6.rlib" "/opt/crater/target/debug/deps/libflate2-b6e3948ec666d535.rlib" "/opt/crater/target/debug/deps/libminiz_sys-080286ef0344cf56.rlib" "/opt/crater/target/debug/deps/libcrc32fast-df610bd9ba6dddf6.rlib" "/opt/crater/target/debug/deps/libbrotli2-4d4e894dba6b36fa.rlib" "/opt/crater/target/debug/deps/libbrotli_sys-7b01a5b3917828a7.rlib" "/opt/crater/target/debug/deps/libserde-530074631bd7755e.rlib" "/opt/crater/target/debug/deps/libtokio-4042f5395f6ebba2.rlib" "/opt/crater/target/debug/deps/libtokio_uds-bcccb4eb825d58c2.rlib" "/opt/crater/target/debug/deps/libmio_uds-6f47507267dabad8.rlib" "/opt/crater/target/debug/deps/libtokio_udp-6fc8a4572ba049f4.rlib" "/opt/crater/target/debug/deps/libtokio_tcp-85f9ee429243cddf.rlib" "/opt/crater/target/debug/deps/libtokio_timer-72c634de884d1e69.rlib" "/opt/crater/target/debug/deps/libtokio_reactor-13168b7969d6e2e2.rlib" "/opt/crater/target/debug/deps/libtokio_fs-24e27357ab1d1143.rlib" "/opt/crater/target/debug/deps/libtokio_threadpool-9b65fcc457a89c19.rlib" "/opt/crater/target/debug/deps/libcrossbeam_deque-db07a197cd00a550.rlib" "/opt/crater/target/debug/deps/libcrossbeam_epoch-1272dcfea2864ee2.rlib" "/opt/crater/target/debug/deps/libmemoffset-81f7e9a5af225363.rlib" "/opt/crater/target/debug/deps/libarrayvec-af01a0d346bcce40.rlib" "/opt/crater/target/debug/deps/libnodrop-7f98e5f8ec110eeb.rlib" "/opt/crater/target/debug/deps/libcrossbeam_channel-97a23151c627cc6d.rlib" "/opt/crater/target/debug/deps/libtokio_codec-4f5e93f2f6541300.rlib" "/opt/crater/target/debug/deps/libtokio_io-a0ec5bce332bc982.rlib" "/opt/crater/target/debug/deps/libtokio_current_thread-6d413b1543f99b2f.rlib" "/opt/crater/target/debug/deps/libtokio_executor-aaa0e41d42ad96e9.rlib" "/opt/crater/target/debug/deps/libcrossbeam_utils-ac95927a52ce2adc.rlib" "/opt/crater/target/debug/deps/libparking_lot-72967b9cf5b252d8.rlib" "/opt/crater/target/debug/deps/libparking_lot_core-661d60dd1afb8c06.rlib" "/opt/crater/target/debug/deps/libsmallvec-ddbbb22a8cacd27c.rlib" "/opt/crater/target/debug/deps/libunreachable-7dd4ced4819ef3ab.rlib" "/opt/crater/target/debug/deps/libvoid-4fb26e3b0cb57bde.rlib" "/opt/crater/target/debug/deps/librand-72bca08c18e2e46a.rlib" "/opt/crater/target/debug/deps/librand_xorshift-4b40683630528f3c.rlib" "/opt/crater/target/debug/deps/librand_pcg-f13281b07f95deab.rlib" "/opt/crater/target/debug/deps/librand_hc-3fc42ec1c8af02b1.rlib" "/opt/crater/target/debug/deps/librand_chacha-dc1a7e589a9ed115.rlib" "/opt/crater/target/debug/deps/librand_isaac-c8ad415819834091.rlib" "/opt/crater/target/debug/deps/librand_os-f591d1da7b6a5d42.rlib" "/opt/crater/target/debug/deps/librand_core-31821dc910b5bac2.rlib" "/opt/crater/target/debug/deps/liblock_api-fc146aa09c055915.rlib" "/opt/crater/target/debug/deps/libowning_ref-3fc2847bd21aa6e0.rlib" "/opt/crater/target/debug/deps/libstable_deref_trait-0255958156eadff4.rlib" "/opt/crater/target/debug/deps/libscopeguard-22a7afc64d55fe2c.rlib" "/opt/crater/target/debug/deps/libmio-1c406d055babf852.rlib" "/opt/crater/target/debug/deps/libslab-9297145f06665f9b.rlib" "/opt/crater/target/debug/deps/libnet2-be174d42d6eee500.rlib" "/opt/crater/target/debug/deps/libmime_guess-26ad61e1f27259c5.rlib" "/opt/crater/target/debug/deps/libphf-2a3c9c00c0cc1e36.rlib" "/opt/crater/target/debug/deps/libphf_shared-a9690bd402370ca6.rlib" "/opt/crater/target/debug/deps/libunicase-c8bd5583553770c8.rlib" "/opt/crater/target/debug/deps/libsiphasher-4c498a6794cfc485.rlib" "/opt/crater/target/debug/deps/libmime-95d5b5baacb1c6d6.rlib" "/opt/crater/target/debug/deps/libunicase-63ab2209cfa17a9e.rlib" "/opt/crater/target/debug/deps/liblazycell-45116a8946ed0c92.rlib" "/opt/crater/target/debug/deps/liblanguage_tags-05e049e3a82cbfb0.rlib" "/opt/crater/target/debug/deps/libhttparse-08b972057fc73eff.rlib" "/opt/crater/target/debug/deps/libhttp-43e88e7b12c22849.rlib" "/opt/crater/target/debug/deps/libitoa-965dbaa5417f4779.rlib" "/opt/crater/target/debug/deps/libfnv-6e18f98be4338210.rlib" "/opt/crater/target/debug/deps/libfutures_cpupool-dee049df52663d3f.rlib" "/opt/crater/target/debug/deps/libnum_cpus-41955a1c944b5a66.rlib" "/opt/crater/target/debug/deps/libcookie-5ea275ef13ce29c7.rlib" "/opt/crater/target/debug/deps/libbase64-ed0604fdf6a302cc.rlib" "/opt/crater/target/debug/deps/libsafemem-6dcdd310941c7c4b.rlib" "/opt/crater/target/debug/deps/libring-eef7177f8d6d7549.rlib" "/opt/crater/target/debug/deps/libuntrusted-5376089619eed254.rlib" "/opt/crater/target/debug/deps/liburl-4c215f10844e95be.rlib" "/opt/crater/target/debug/deps/libencoding-54227715430251f9.rlib" "/opt/crater/target/debug/deps/libencoding_index_tradchinese-b71b470ec9df29eb.rlib" "/opt/crater/target/debug/deps/libencoding_index_simpchinese-35e725787041c6d1.rlib" "/opt/crater/target/debug/deps/libencoding_index_japanese-2c5c8763fe313cfe.rlib" "/opt/crater/target/debug/deps/libencoding_index_korean-8cb57dd76654293b.rlib" "/opt/crater/target/debug/deps/libencoding_index_singlebyte-80fb7d4b4c048edf.rlib" "/opt/crater/target/debug/deps/libpercent_encoding-b2b1eddedcc9d5cc.rlib" "/opt/crater/target/debug/deps/libidna-579fb7ac82726a4c.rlib" "/opt/crater/target/debug/deps/libunicode_normalization-17e783eda08f2a2e.rlib" "/opt/crater/target/debug/deps/libunicode_bidi-020a270ca49d2bee.rlib" "/opt/crater/target/debug/deps/libmatches-9f7ad04d44b47530.rlib" "/opt/crater/target/debug/deps/libfutures-6a92a1296f37950e.rlib" "/opt/crater/target/debug/deps/libfailure-60c2e5e2440f18fc.rlib" "/opt/crater/target/debug/deps/libbacktrace-b01552c83be1e8de.rlib" "/opt/crater/target/debug/deps/libbacktrace_sys-bba2b99e6afafb1c.rlib" "/opt/crater/target/debug/deps/librustc_demangle-cfb1af0c5cb5972b.rlib" "/opt/crater/target/debug/deps/libbitflags-67998902f09e32c1.rlib" "/opt/crater/target/debug/deps/libtime-9d3a4c5af3f27e24.rlib" "/opt/crater/target/debug/deps/libsha1-19561cf7d08c449a.rlib" "/opt/crater/target/debug/deps/libregex-12dc2236f566220f.rlib" "/opt/crater/target/debug/deps/libutf8_ranges-f52370ed8b8aeb13.rlib" "/opt/crater/target/debug/deps/libregex_syntax-850e4c3af7d28146.rlib" "/opt/crater/target/debug/deps/libucd_util-57957d64f2b3380e.rlib" "/opt/crater/target/debug/deps/libthread_local-dc312346ae57221e.rlib" "/opt/crater/target/debug/deps/liblazy_static-df8b3d370f96c908.rlib" "/opt/crater/target/debug/deps/libaho_corasick-2949e1e70a6abd20.rlib" "/opt/crater/target/debug/deps/libmemchr-38be1503a99ee5d2.rlib" "/opt/crater/target/debug/deps/libbytes-733a430cd37f5ba2.rlib" "/opt/crater/target/debug/deps/libiovec-d3757b6a5aea673c.rlib" "/opt/crater/target/debug/deps/liblibc-6ac10c0b2a63587f.rlib" "/opt/crater/target/debug/deps/libbase64-60979736570ff23e.rlib" "/opt/crater/target/debug/deps/libbyteorder-66f90abb67f6906c.rlib" "/opt/crater/target/debug/deps/liblog-5fab1ddaf1b8d6f8.rlib" "/opt/crater/target/debug/deps/libcfg_if-52f952e08f3290ba.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" "-lwkhtmltox" "-lwkhtmltox" "-lssl" "-lcrypto" "-lz" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lwkhtmltox
[INFO] [stderr]           /usr/bin/ld: cannot find -lwkhtmltox
[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 `core`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "637e6ab7805635e162408f5d454710a4d63beb359c0bfb7f13326bb24d544b3c"`
[INFO] running `"docker" "rm" "-f" "637e6ab7805635e162408f5d454710a4d63beb359c0bfb7f13326bb24d544b3c"`
[INFO] [stdout] 637e6ab7805635e162408f5d454710a4d63beb359c0bfb7f13326bb24d544b3c