[INFO] updating cached repository aveminus/wikibar
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/aveminus/wikibar
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/aveminus/wikibar" "work/ex/beta-1.37-6/sources/1.36.0/gh/aveminus/wikibar"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/aveminus/wikibar'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aveminus/wikibar" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/aveminus/wikibar"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/aveminus/wikibar'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 52af87e175507001eabd04bcdfc3d13be312be1c
[INFO] sha for GitHub repo aveminus/wikibar: 52af87e175507001eabd04bcdfc3d13be312be1c
[INFO] validating manifest of aveminus/wikibar 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 aveminus/wikibar 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 aveminus/wikibar
[INFO] finished frobbing aveminus/wikibar
[INFO] frobbed toml for aveminus/wikibar written to work/ex/beta-1.37-6/sources/1.36.0/gh/aveminus/wikibar/Cargo.toml
[INFO] started frobbing aveminus/wikibar
[INFO] finished frobbing aveminus/wikibar
[INFO] frobbed toml for aveminus/wikibar written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/aveminus/wikibar/Cargo.toml
[INFO] crate aveminus/wikibar 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/aveminus/wikibar/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[INFO] the lockfile is outdated, regenerating it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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 aveminus/wikibar against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/aveminus/wikibar:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 017fe58a2824c289d4dd0173b0c92515da91c59d6c1561107e3640c627ca1dbd
[INFO] running `"docker" "start" "-a" "017fe58a2824c289d4dd0173b0c92515da91c59d6c1561107e3640c627ca1dbd"`
[INFO] [stderr]    Compiling serde v0.7.15
[INFO] [stderr]    Compiling curl-sys v0.2.5
[INFO] [stderr]    Compiling openssl-sys v0.7.17
[INFO] [stderr]    Compiling serde_json v0.7.4
[INFO] [stderr]    Compiling curl v0.3.11
[INFO] [stderr]    Compiling wikibar v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `rel`
[INFO] [stderr]   --> src/main.rs:71:14
[INFO] [stderr]    |
[INFO] [stderr] 71 |         for (rel, page) in pages.iter() {
[INFO] [stderr]    |              ^^^ help: consider prefixing with an underscore: `_rel`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] 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-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/wikibar-69a9ca1535860109.wikibar.bhktgzhq-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/wikibar-69a9ca1535860109.wikibar.bhktgzhq-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/wikibar-69a9ca1535860109.wikibar.bhktgzhq-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/wikibar-69a9ca1535860109.wikibar.bhktgzhq-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/wikibar-69a9ca1535860109.wikibar.bhktgzhq-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/wikibar-69a9ca1535860109.wikibar.bhktgzhq-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/wikibar-69a9ca1535860109.wikibar.bhktgzhq-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/wikibar-69a9ca1535860109.wikibar.bhktgzhq-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/wikibar-69a9ca1535860109.wikibar.bhktgzhq-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/wikibar-69a9ca1535860109.wikibar.bhktgzhq-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/wikibar-69a9ca1535860109.wikibar.bhktgzhq-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/wikibar-69a9ca1535860109.wikibar.bhktgzhq-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/wikibar-69a9ca1535860109.wikibar.bhktgzhq-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/wikibar-69a9ca1535860109.wikibar.bhktgzhq-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/wikibar-69a9ca1535860109.wikibar.bhktgzhq-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/wikibar-69a9ca1535860109.wikibar.bhktgzhq-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/wikibar-69a9ca1535860109" "/opt/crater/target/debug/deps/wikibar-69a9ca1535860109.1bswn6jjbwhkamzm.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/target/debug/build/curl-sys-3412946472726912/out/lib" "-L" "/usr/lib/x86_64-linux-gnu" "-L" "/usr/lib/x86_64-linux-gnu" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libserde_json-61eb52165095be5d.rlib" "/opt/crater/target/debug/deps/libitoa-43a72e11134de036.rlib" "/opt/crater/target/debug/deps/libnum_traits-c3ec1b467bca6158.rlib" "/opt/crater/target/debug/deps/libnum_traits-04277105b9bd2221.rlib" "/opt/crater/target/debug/deps/libserde-86baa8473938229e.rlib" "/opt/crater/target/debug/deps/libcurl-639076997d877841.rlib" "/opt/crater/target/debug/deps/libopenssl_probe-8a28fadf9a103951.rlib" "/opt/crater/target/debug/deps/libcurl_sys-f21e3813a512b7aa.rlib" "/opt/crater/target/debug/deps/libopenssl_sys-921009584f7cdcf5.rlib" "/opt/crater/target/debug/deps/liblibz_sys-a007439c1d8c8af0.rlib" "/opt/crater/target/debug/deps/liblibc-15b143653abd1ffe.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-a80a1e8e09cafef8.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e0e6351da805c468.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-e04f54bafc95e331.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-67901d3322495bd5.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-bd390b1abaceaec1.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-312dd37fdc7bedfc.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-8ed0e51d58d644a3.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-8a423c320a6c707f.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-d6a95598e2238263.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d231614b153016eb.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-3821619027f463e4.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-1cfd794d18771a44.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-dcf33cf10c2452ef.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-c258fea34bf64bce.rlib" "-Wl,-Bdynamic" "-lssl" "-lcrypto" "-lz" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /opt/crater/target/debug/deps/libopenssl_sys-921009584f7cdcf5.rlib(openssl_sys-921009584f7cdcf5.openssl_sys.5xo95okd-cgu.13.rcgu.o): In function `openssl_sys::init::{{closure}}':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/openssl-sys-0.7.17/src/lib.rs:517: undefined reference to `SSL_library_init'
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/openssl-sys-0.7.17/src/lib.rs:518: undefined reference to `SSL_load_error_strings'
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/openssl-sys-0.7.17/src/lib.rs:519: undefined reference to `OPENSSL_add_all_algorithms_noconf'
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/openssl-sys-0.7.17/src/lib.rs:521: undefined reference to `CRYPTO_num_locks'
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/openssl-sys-0.7.17/src/lib.rs:531: undefined reference to `CRYPTO_set_locking_callback'
[INFO] [stderr]           /opt/crater/target/debug/deps/libopenssl_sys-921009584f7cdcf5.rlib(openssl_sys-921009584f7cdcf5.openssl_sys.5xo95okd-cgu.13.rcgu.o): In function `openssl_sys::set_id_callback':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/openssl-sys-0.7.17/src/lib.rs:544: undefined reference to `CRYPTO_set_id_callback'
[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 `wikibar`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "017fe58a2824c289d4dd0173b0c92515da91c59d6c1561107e3640c627ca1dbd"`
[INFO] running `"docker" "rm" "-f" "017fe58a2824c289d4dd0173b0c92515da91c59d6c1561107e3640c627ca1dbd"`
[INFO] [stdout] 017fe58a2824c289d4dd0173b0c92515da91c59d6c1561107e3640c627ca1dbd