[INFO] updating cached repository lettenj61/rig
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lettenj61/rig
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lettenj61/rig" "work/ex/beta-1.38-1/sources/1.37.0/gh/lettenj61/rig"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/lettenj61/rig'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lettenj61/rig" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lettenj61/rig"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lettenj61/rig'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1d32c8bd6b1414140be3b52741b067f97550c536
[INFO] sha for GitHub repo lettenj61/rig: 1d32c8bd6b1414140be3b52741b067f97550c536
[INFO] validating manifest of lettenj61/rig 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 lettenj61/rig 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 lettenj61/rig
[INFO] finished frobbing lettenj61/rig
[INFO] frobbed toml for lettenj61/rig written to work/ex/beta-1.38-1/sources/1.37.0/gh/lettenj61/rig/Cargo.toml
[INFO] started frobbing lettenj61/rig
[INFO] finished frobbing lettenj61/rig
[INFO] frobbed toml for lettenj61/rig written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lettenj61/rig/Cargo.toml
[INFO] crate lettenj61/rig 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 lettenj61/rig 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-5/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/lettenj61/rig:/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] 02118a12f9a070267a04a7ee8471b7a6779de3ffa7572f7ac67251d2b0fa4679
[INFO] running `"docker" "start" "-a" "02118a12f9a070267a04a7ee8471b7a6779de3ffa7572f7ac67251d2b0fa4679"`
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling error-chain v0.7.2
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.3
[INFO] [stderr]    Compiling unidecode v0.2.0
[INFO] [stderr]    Compiling serde v0.9.6
[INFO] [stderr]    Compiling regex-syntax v0.4.0
[INFO] [stderr]    Compiling lazy_static v0.2.2
[INFO] [stderr]    Compiling openssl-probe v0.1.0
[INFO] [stderr]    Compiling humansize v1.0.0
[INFO] [stderr]    Compiling pest v0.4.1
[INFO] [stderr]    Compiling ascii v0.7.1
[INFO] [stderr]    Compiling rustc-serialize v0.3.22
[INFO] [stderr]    Compiling libz-sys v1.0.12
[INFO] [stderr]    Compiling cmake v0.1.20
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]    Compiling curl-sys v0.3.7
[INFO] [stderr]    Compiling num-integer v0.1.32
[INFO] [stderr]    Compiling thread-id v3.0.0
[INFO] [stderr]    Compiling unicode-bidi v0.2.4
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling same-file v0.1.2
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling metadeps v1.1.1
[INFO] [stderr]    Compiling combine v2.2.2
[INFO] [stderr]    Compiling slug v0.1.2
[INFO] [stderr]    Compiling libssh2-sys v0.2.5
[INFO] [stderr]    Compiling libgit2-sys v0.6.6
[INFO] [stderr]    Compiling thread_local v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.32
[INFO] [stderr]    Compiling aho-corasick v0.6.1
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling walkdir v1.0.7
[INFO] [stderr]    Compiling idna v0.1.0
[INFO] [stderr]    Compiling openssl-sys v0.9.6
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]    Compiling num v0.1.36
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling regex v0.2.1
[INFO] [stderr]    Compiling chrono v0.2.25
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling error-chain v0.8.1
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling url v1.4.0
[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-1.4.0/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 serde_json v0.9.5
[INFO] [stderr]    Compiling toml v0.3.0
[INFO] [stderr]    Compiling env_logger v0.4.0
[INFO] [stderr]    Compiling docopt v0.7.0
[INFO] [stderr]    Compiling java-properties v1.0.0
[INFO] [stderr]    Compiling tera v0.7.1
[INFO] [stderr]    Compiling git2 v0.6.4
[INFO] [stderr]    Compiling rig v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stderr]  --> src/format.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` 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/errors.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / error_chain! {
[INFO] [stderr] 5  | |
[INFO] [stderr] 6  | |     foreign_links {
[INFO] [stderr] 7  | |         Io(io::Error);
[INFO] [stderr] ...  |
[INFO] [stderr] 20 | |     }
[INFO] [stderr] 21 | | }
[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] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]  --> src/format.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` 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/rig-d613de09f2449bda.rig.5ucw5u8a-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/rig-d613de09f2449bda.rig.5ucw5u8a-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/rig-d613de09f2449bda.rig.5ucw5u8a-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/rig-d613de09f2449bda.rig.5ucw5u8a-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/rig-d613de09f2449bda.rig.5ucw5u8a-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/rig-d613de09f2449bda.rig.5ucw5u8a-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/rig-d613de09f2449bda.rig.5ucw5u8a-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/rig-d613de09f2449bda.rig.5ucw5u8a-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/rig-d613de09f2449bda.rig.5ucw5u8a-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/rig-d613de09f2449bda.rig.5ucw5u8a-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/rig-d613de09f2449bda.rig.5ucw5u8a-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/rig-d613de09f2449bda.rig.5ucw5u8a-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/rig-d613de09f2449bda.rig.5ucw5u8a-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/rig-d613de09f2449bda.rig.5ucw5u8a-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/rig-d613de09f2449bda.rig.5ucw5u8a-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/rig-d613de09f2449bda.rig.5ucw5u8a-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/rig-d613de09f2449bda" "/opt/crater/target/debug/deps/rig-d613de09f2449bda.16upl89tzwe3ue03.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/target/debug/build/libgit2-sys-8e9861f60852f7a7/out/lib" "-L" "/opt/crater/target/debug/build/curl-sys-6f02af5a25729166/out/lib" "-L" "/usr/lib/x86_64-linux-gnu" "-L" "/usr/lib/x86_64-linux-gnu" "-L" "/opt/crater/target/debug/build/libssh2-sys-9d3b46c798dbaa75/out/lib" "-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/librig-6453e7558474413b.rlib" "/opt/crater/target/debug/deps/libwalkdir-4fa0d7807bb4ef3e.rlib" "/opt/crater/target/debug/deps/libsame_file-bb98b398c1e34f57.rlib" "/opt/crater/target/debug/deps/libtoml-b3122ce637b20a0c.rlib" "/opt/crater/target/debug/deps/libtera-9b8a596dd6ce3ae4.rlib" "/opt/crater/target/debug/deps/libchrono-0bbfe071e8f76720.rlib" "/opt/crater/target/debug/deps/libnum-21583d9e0585b1d1.rlib" "/opt/crater/target/debug/deps/libnum_iter-0c80d544ba1f8bd7.rlib" "/opt/crater/target/debug/deps/libnum_integer-4739295d8bcfef2e.rlib" "/opt/crater/target/debug/deps/libtime-1184ae21d60929f9.rlib" "/opt/crater/target/debug/deps/libhumansize-013c7608c076e5bd.rlib" "/opt/crater/target/debug/deps/libslug-60d83d49c57808be.rlib" "/opt/crater/target/debug/deps/libunidecode-4fa088de98067250.rlib" "/opt/crater/target/debug/deps/libpest-16b9f768774c9cb2.rlib" "/opt/crater/target/debug/deps/libglob-31fe06c730b4ed3f.rlib" "/opt/crater/target/debug/deps/libserde_json-d588bcedda6a2db9.rlib" "/opt/crater/target/debug/deps/libdtoa-d8f27ef76f57e039.rlib" "/opt/crater/target/debug/deps/libitoa-0174b4399c499c29.rlib" "/opt/crater/target/debug/deps/libnum_traits-cf072775152a8823.rlib" "/opt/crater/target/debug/deps/libserde-c6a9686f45bb6050.rlib" "/opt/crater/target/debug/deps/libcombine-6d6dc3b94b4dfbe9.rlib" "/opt/crater/target/debug/deps/libascii-4be84ea14ab3cfc6.rlib" "/opt/crater/target/debug/deps/libtempdir-adc9f30fbe2a35a2.rlib" "/opt/crater/target/debug/deps/librand-5401a7eebf03def5.rlib" "/opt/crater/target/debug/deps/libjava_properties-4b40b8f3e5a9fec0.rlib" "/opt/crater/target/debug/deps/libregex-980badff36154f83.rlib" "/opt/crater/target/debug/deps/libutf8_ranges-f03f24c2204694fb.rlib" "/opt/crater/target/debug/deps/libregex_syntax-e4e7cc24efed9736.rlib" "/opt/crater/target/debug/deps/libthread_local-fdb5e6be7dc9f540.rlib" "/opt/crater/target/debug/deps/libthread_id-94515a0fca0c9d78.rlib" "/opt/crater/target/debug/deps/libaho_corasick-35cd3b644ba04972.rlib" "/opt/crater/target/debug/deps/libmemchr-bf8b89d8dc522616.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/libgit2-2a5bed538dac933c.rlib" "/opt/crater/target/debug/deps/libopenssl_probe-d25b1f19eaacde90.rlib" "/opt/crater/target/debug/deps/libbitflags-b03ee8d07369378c.rlib" "/opt/crater/target/debug/deps/liblibgit2_sys-dc97feee63566fbe.rlib" "/opt/crater/target/debug/deps/libcurl_sys-6e8371bce4d91d07.rlib" "/opt/crater/target/debug/deps/liblibssh2_sys-55954c5aac3b9098.rlib" "/opt/crater/target/debug/deps/libopenssl_sys-62d0b1d00a8bd0bd.rlib" "/opt/crater/target/debug/deps/liblibz_sys-a779674bc228a5f6.rlib" "/opt/crater/target/debug/deps/liburl-32127849183f9531.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/libenv_logger-30dca69a5b768c94.rlib" "/opt/crater/target/debug/deps/liblog-f86f92691b4ababd.rlib" "/opt/crater/target/debug/deps/liberror_chain-0f85a8057489c89e.rlib" "/opt/crater/target/debug/deps/libbacktrace-b0c39666a0c27c0e.rlib" "/opt/crater/target/debug/deps/libbacktrace_sys-48d4199acde35dbf.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/libdocopt-59c0385d07e68738.rlib" "/opt/crater/target/debug/deps/libstrsim-1f97e786376c3bf3.rlib" "/opt/crater/target/debug/deps/librustc_serialize-9d882fed622c6e9e.rlib" "/opt/crater/target/debug/deps/libregex-fa8167b987d56589.rlib" "/opt/crater/target/debug/deps/libutf8_ranges-09a6e1d8631730f6.rlib" "/opt/crater/target/debug/deps/libregex_syntax-ff10189106dfac56.rlib" "/opt/crater/target/debug/deps/libthread_local-d1d7af3d106bd250.rlib" "/opt/crater/target/debug/deps/libunreachable-50f2ecea0581636d.rlib" "/opt/crater/target/debug/deps/libvoid-4fb26e3b0cb57bde.rlib" "/opt/crater/target/debug/deps/libthread_id-f02fea02e9181d52.rlib" "/opt/crater/target/debug/deps/libaho_corasick-38495addfb4730b6.rlib" "/opt/crater/target/debug/deps/libmemchr-f063f6f233cc6da7.rlib" "/opt/crater/target/debug/deps/liblibc-5387475aa5c42d2b.rlib" "/opt/crater/target/debug/deps/liblazy_static-5b3a6350224c4bac.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" "-lz" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /opt/crater/target/debug/deps/libbacktrace-b0c39666a0c27c0e.rlib(backtrace-b0c39666a0c27c0e.backtrace.3yd59qnu-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-b0c39666a0c27c0e.rlib(backtrace-b0c39666a0c27c0e.backtrace.3yd59qnu-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 `rig`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "02118a12f9a070267a04a7ee8471b7a6779de3ffa7572f7ac67251d2b0fa4679"`
[INFO] running `"docker" "rm" "-f" "02118a12f9a070267a04a7ee8471b7a6779de3ffa7572f7ac67251d2b0fa4679"`
[INFO] [stdout] 02118a12f9a070267a04a7ee8471b7a6779de3ffa7572f7ac67251d2b0fa4679