[INFO] updating cached repository babariviere/unibot
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/babariviere/unibot
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/babariviere/unibot" "work/ex/beta-1.38-1/sources/1.37.0/gh/babariviere/unibot"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/babariviere/unibot'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/babariviere/unibot" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/babariviere/unibot"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/babariviere/unibot'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 64c81d5880811da6d79f7b70fda111bf0e00f4e0
[INFO] sha for GitHub repo babariviere/unibot: 64c81d5880811da6d79f7b70fda111bf0e00f4e0
[INFO] validating manifest of babariviere/unibot 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 babariviere/unibot 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 babariviere/unibot
[INFO] finished frobbing babariviere/unibot
[INFO] frobbed toml for babariviere/unibot written to work/ex/beta-1.38-1/sources/1.37.0/gh/babariviere/unibot/Cargo.toml
[INFO] started frobbing babariviere/unibot
[INFO] finished frobbing babariviere/unibot
[INFO] frobbed toml for babariviere/unibot written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/babariviere/unibot/Cargo.toml
[INFO] crate babariviere/unibot 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 babariviere/unibot 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-1/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/babariviere/unibot:/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] 8870433ab85d50e7c26f5ea0d205b8839be7c3be854b2174f36740e497d77339
[INFO] running `"docker" "start" "-a" "8870433ab85d50e7c26f5ea0d205b8839be7c3be854b2174f36740e497d77339"`
[INFO] [stderr]    Compiling siphasher v0.2.0
[INFO] [stderr]    Compiling error-chain v0.7.2
[INFO] [stderr]    Compiling openssl v0.9.6
[INFO] [stderr]    Compiling term_size v0.2.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]    Compiling bit-set v0.4.0
[INFO] [stderr]    Compiling futf v0.1.2
[INFO] [stderr]    Compiling url v1.3.0
[INFO] [stderr]    Compiling term v0.4.4
[INFO] [stderr]    Compiling clap v2.19.3
[INFO] [stderr]    Compiling metadeps v1.1.1
[INFO] [stderr]    Compiling tendril v0.2.3
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling phf v0.7.21
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling string_cache v0.2.29
[INFO] [stderr]    Compiling error-chain v0.8.1
[INFO] [stderr]    Compiling openssl-sys v0.9.6
[INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.3.0/src/form_urlencoded.rs:246:40
[INFO] [stderr]     |
[INFO] [stderr] 244 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] 245 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stderr] 246 |     fn finish(self) -> &'a mut ::Url { self.url }
[INFO] [stderr]     |                                        ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait
[INFO] [stderr]     |                                        |
[INFO] [stderr]     |                                        returning this value requires that `*self.url` is borrowed for `'a`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]    Compiling html5ever v0.5.4
[INFO] [stderr]    Compiling hyper v0.10.0
[INFO] [stderr]    Compiling native-tls v0.1.1
[INFO] [stderr]    Compiling hyper-native-tls v0.2.1
[INFO] [stderr]    Compiling select v0.3.0
[INFO] [stderr]    Compiling unibot v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/crawl/config.rs:9:17
[INFO] [stderr]   |
[INFO] [stderr] 9 |     filter: Arc<Fn(&Url, &Url) -> bool + Send + Sync>,
[INFO] [stderr]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Url, &Url) -> bool + Send + Sync`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:2:1
[INFO] [stderr]    |
[INFO] [stderr] 2  | / error_chain!{
[INFO] [stderr] 3  | |     foreign_links {
[INFO] [stderr] 4  | |         Io(::std::io::Error);
[INFO] [stderr] 5  | |         Hyper(::hyper::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 22 | |     }
[INFO] [stderr] 23 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:2:1
[INFO] [stderr]    |
[INFO] [stderr] 2  | / error_chain!{
[INFO] [stderr] 3  | |     foreign_links {
[INFO] [stderr] 4  | |         Io(::std::io::Error);
[INFO] [stderr] 5  | |         Hyper(::hyper::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 22 | |     }
[INFO] [stderr] 23 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[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/unibot-ef48edc83092dc2f.unibot.92or1mqi-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/unibot-ef48edc83092dc2f.unibot.92or1mqi-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/unibot-ef48edc83092dc2f.unibot.92or1mqi-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/unibot-ef48edc83092dc2f.unibot.92or1mqi-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/unibot-ef48edc83092dc2f.unibot.92or1mqi-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/unibot-ef48edc83092dc2f.unibot.92or1mqi-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/unibot-ef48edc83092dc2f.unibot.92or1mqi-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/unibot-ef48edc83092dc2f.unibot.92or1mqi-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/unibot-ef48edc83092dc2f.unibot.92or1mqi-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/unibot-ef48edc83092dc2f.unibot.92or1mqi-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/unibot-ef48edc83092dc2f.unibot.92or1mqi-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/unibot-ef48edc83092dc2f.unibot.92or1mqi-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/unibot-ef48edc83092dc2f.unibot.92or1mqi-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/unibot-ef48edc83092dc2f.unibot.92or1mqi-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/unibot-ef48edc83092dc2f.unibot.92or1mqi-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/unibot-ef48edc83092dc2f.unibot.92or1mqi-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/unibot-ef48edc83092dc2f" "/opt/crater/target/debug/deps/unibot-ef48edc83092dc2f.31d1j5dq20buw4kx.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/usr/lib/x86_64-linux-gnu" "-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/libterm-d1a279a7e3c8b079.rlib" "/opt/crater/target/debug/deps/liblibunibot-c48b6a7a4146004c.rlib" "/opt/crater/target/debug/deps/libselect-1b59f95773adbc0a.rlib" "/opt/crater/target/debug/deps/libhtml5ever-42d23fb4beb852b5.rlib" "/opt/crater/target/debug/deps/libtendril-6a1cfd3c27c01239.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/libutf8-abc28d7a6f9ba965.rlib" "/opt/crater/target/debug/deps/libfutf-6a666dd466092175.rlib" "/opt/crater/target/debug/deps/libphf-2a909da3267a24a5.rlib" "/opt/crater/target/debug/deps/libmac-87f782969f2048cc.rlib" "/opt/crater/target/debug/deps/libstring_cache-3174a236ce0cbaf3.rlib" "/opt/crater/target/debug/deps/libphf_shared-b4d4c8f5b13f92b7.rlib" "/opt/crater/target/debug/deps/libsiphasher-882ca7bcb5860af3.rlib" "/opt/crater/target/debug/deps/libserde-78bc903217ebb9c1.rlib" "/opt/crater/target/debug/deps/libdebug_unreachable-18042d21e474932c.rlib" "/opt/crater/target/debug/deps/libunreachable-50f2ecea0581636d.rlib" "/opt/crater/target/debug/deps/libvoid-4fb26e3b0cb57bde.rlib" "/opt/crater/target/debug/deps/libbit_set-a6e445879bb5aca2.rlib" "/opt/crater/target/debug/deps/libbit_vec-75f1cbb4e7e77bf1.rlib" "/opt/crater/target/debug/deps/libhyper_native_tls-0380de728f682e13.rlib" "/opt/crater/target/debug/deps/libnative_tls-28c6cb4f850d638f.rlib" "/opt/crater/target/debug/deps/libopenssl-98aa6e904a880738.rlib" "/opt/crater/target/debug/deps/libopenssl_sys-34d4282a6446a809.rlib" "/opt/crater/target/debug/deps/liblazy_static-5b3a6350224c4bac.rlib" "/opt/crater/target/debug/deps/libantidote-2837fba42b28847b.rlib" "/opt/crater/target/debug/deps/libhyper-9f55b1adb7473be8.rlib" "/opt/crater/target/debug/deps/libmime-ddba046d8e276c10.rlib" "/opt/crater/target/debug/deps/liblog-f86f92691b4ababd.rlib" "/opt/crater/target/debug/deps/liblanguage_tags-05e049e3a82cbfb0.rlib" "/opt/crater/target/debug/deps/libtypeable-9a5238d74bedca20.rlib" "/opt/crater/target/debug/deps/libtraitobject-d6a25601500c9dd2.rlib" "/opt/crater/target/debug/deps/libnum_cpus-1c5ab083c07a43f4.rlib" "/opt/crater/target/debug/deps/libhttparse-7974de60bf68c699.rlib" "/opt/crater/target/debug/deps/libunicase-dbf6fe5841505ea7.rlib" "/opt/crater/target/debug/deps/liburl-733fa811cfb349c0.rlib" "/opt/crater/target/debug/deps/libidna-bc1fc98537d9f893.rlib" "/opt/crater/target/debug/deps/libunicode_normalization-4ee67dc10c1ff91b.rlib" "/opt/crater/target/debug/deps/libunicode_bidi-e24ce47dedf7524b.rlib" "/opt/crater/target/debug/deps/libmatches-2348311bd9b60c72.rlib" "/opt/crater/target/debug/deps/libtime-1184ae21d60929f9.rlib" "/opt/crater/target/debug/deps/librustc_serialize-9d882fed622c6e9e.rlib" "/opt/crater/target/debug/deps/liberror_chain-912ba0a2796e93f2.rlib" "/opt/crater/target/debug/deps/libbacktrace-ad3b1548b21cc47a.rlib" "/opt/crater/target/debug/deps/libbacktrace_sys-2c4bf03f305ce277.rlib" "/opt/crater/target/debug/deps/librustc_demangle-a63e03c53d847d30.rlib" "/opt/crater/target/debug/deps/libcfg_if-e594ac7fa20b1aa3.rlib" "/opt/crater/target/debug/deps/libdbghelp-d860676abe2fb31b.rlib" "/opt/crater/target/debug/deps/libwinapi-be47d272a993a950.rlib" "/opt/crater/target/debug/deps/libkernel32-ed10b6f453a27092.rlib" "/opt/crater/target/debug/deps/libclap-cba1b19b026ded00.rlib" "/opt/crater/target/debug/deps/libunicode_segmentation-bafce28bce92cb4a.rlib" "/opt/crater/target/debug/deps/libterm_size-fedf40c41fa61151.rlib" "/opt/crater/target/debug/deps/libvec_map-4bfc68e930684ad8.rlib" "/opt/crater/target/debug/deps/libbitflags-b03ee8d07369378c.rlib" "/opt/crater/target/debug/deps/libunicode_width-a2596a57a5d82eb6.rlib" "/opt/crater/target/debug/deps/liblibc-5387475aa5c42d2b.rlib" "/opt/crater/target/debug/deps/libansi_term-96a43f38fb74107f.rlib" "/opt/crater/target/debug/deps/libstrsim-4ec6f9fa4bef3e43.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" "-lssl" "-lcrypto" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /opt/crater/target/debug/deps/libbacktrace-ad3b1548b21cc47a.rlib(backtrace-ad3b1548b21cc47a.backtrace.bz7cb49z-cgu.6.rcgu.o): In function `backtrace::symbolize::libbacktrace::init_state::{{closure}}':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:156: undefined reference to `backtrace_create_state'
[INFO] [stderr]           /opt/crater/target/debug/deps/libbacktrace-ad3b1548b21cc47a.rlib(backtrace-ad3b1548b21cc47a.backtrace.bz7cb49z-cgu.6.rcgu.o): In function `backtrace::symbolize::libbacktrace::resolve':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:173: undefined reference to `backtrace_pcinfo'
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:177: undefined reference to `backtrace_syminfo'
[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 `unibot`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8870433ab85d50e7c26f5ea0d205b8839be7c3be854b2174f36740e497d77339"`
[INFO] running `"docker" "rm" "-f" "8870433ab85d50e7c26f5ea0d205b8839be7c3be854b2174f36740e497d77339"`
[INFO] [stdout] 8870433ab85d50e7c26f5ea0d205b8839be7c3be854b2174f36740e497d77339