[INFO] updating cached repository onelson/loose-coupling
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/onelson/loose-coupling
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/onelson/loose-coupling" "work/ex/beta-1.38-1/sources/1.37.0/gh/onelson/loose-coupling"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/onelson/loose-coupling'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/onelson/loose-coupling" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/onelson/loose-coupling"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/onelson/loose-coupling'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4f9f11af233ce1d8de3d3f1e7f8c419da841f53f
[INFO] sha for GitHub repo onelson/loose-coupling: 4f9f11af233ce1d8de3d3f1e7f8c419da841f53f
[INFO] validating manifest of onelson/loose-coupling 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 onelson/loose-coupling 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 onelson/loose-coupling
[INFO] finished frobbing onelson/loose-coupling
[INFO] frobbed toml for onelson/loose-coupling written to work/ex/beta-1.38-1/sources/1.37.0/gh/onelson/loose-coupling/Cargo.toml
[INFO] started frobbing onelson/loose-coupling
[INFO] finished frobbing onelson/loose-coupling
[INFO] frobbed toml for onelson/loose-coupling written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/onelson/loose-coupling/Cargo.toml
[INFO] crate onelson/loose-coupling 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 onelson/loose-coupling 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-6/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/onelson/loose-coupling:/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] 3d52c7f405a77794eeb8057664bdb3aae9e1e5daef029f177da7a3ea7aa14740
[INFO] running `"docker" "start" "-a" "3d52c7f405a77794eeb8057664bdb3aae9e1e5daef029f177da7a3ea7aa14740"`
[INFO] [stderr]    Compiling phf_shared v0.7.20
[INFO] [stderr]    Compiling serde v0.8.19
[INFO] [stderr]    Compiling gcc v0.3.39
[INFO] [stderr]    Compiling rustc-demangle v0.1.3
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling num_cpus v1.2.0
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling xml-rs v0.3.5
[INFO] [stderr]    Compiling shared_library v0.1.5
[INFO] [stderr]    Compiling num-complex v0.1.35
[INFO] [stderr]    Compiling silverknife-fontconfig-sys v0.1.0
[INFO] [stderr]    Compiling nodrop v0.1.8
[INFO] [stderr]    Compiling stb_truetype v0.2.0
[INFO] [stderr]    Compiling gif v0.9.0
[INFO] [stderr]    Compiling phf v0.7.20
[INFO] [stderr]    Compiling num-iter v0.1.32
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling arrayvec v0.3.20
[INFO] [stderr]    Compiling phf_generator v0.7.20
[INFO] [stderr]    Compiling num-bigint v0.1.35
[INFO] [stderr]    Compiling deque v0.3.1
[INFO] [stderr]    Compiling x11-dl v2.11.0
[INFO] [stderr]    Compiling wayland-scanner v0.5.11
[INFO] [stderr]    Compiling gl_generator v0.5.2
[INFO] [stderr]    Compiling phf_codegen v0.7.20
[INFO] [stderr]    Compiling fs2 v0.2.5
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling time v0.1.35
[INFO] [stderr]    Compiling tempfile v2.1.4
[INFO] [stderr]    Compiling rayon v0.5.0
[INFO] [stderr]    Compiling rusttype v0.2.1
[INFO] [stderr]    Compiling target_build_utils v0.1.2
[INFO] [stderr]    Compiling font-loader v0.1.0
[INFO] [stderr]    Compiling memmap v0.2.3
[INFO] [stderr]    Compiling num-rational v0.1.35
[INFO] [stderr]    Compiling miniz-sys v0.1.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr] warning[E0311]: the parameter type `K` may not live long enough
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rusttype-0.2.1/src/support/bst/map.rs:81:19
[INFO] [stderr]    |
[INFO] [stderr] 81 |             match node.force() {
[INFO] [stderr]    |                   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding an explicit lifetime bound for `K`
[INFO] [stderr] note: the parameter type `K` must be valid for the anonymous lifetime #1 defined on the function body at 77:9...
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rusttype-0.2.1/src/support/bst/map.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 | /         fn clone_subtree<K: Clone, V: Clone>(
[INFO] [stderr] 78 | |                 node: node::NodeRef<marker::Immut, K, V, marker::LeafOrInternal>)
[INFO] [stderr] 79 | |                 -> BTreeMap<K, V> {
[INFO] [stderr] 80 | |
[INFO] [stderr] ...  |
[INFO] [stderr] 136| |             }
[INFO] [stderr] 137| |         }
[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] warning[E0311]: the parameter type `V` may not live long enough
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rusttype-0.2.1/src/support/bst/map.rs:81:19
[INFO] [stderr]    |
[INFO] [stderr] 81 |             match node.force() {
[INFO] [stderr]    |                   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider adding an explicit lifetime bound for `V`
[INFO] [stderr] note: the parameter type `V` must be valid for the anonymous lifetime #1 defined on the function body at 77:9...
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rusttype-0.2.1/src/support/bst/map.rs:77:9
[INFO] [stderr]    |
[INFO] [stderr] 77 | /         fn clone_subtree<K: Clone, V: Clone>(
[INFO] [stderr] 78 | |                 node: node::NodeRef<marker::Immut, K, V, marker::LeafOrInternal>)
[INFO] [stderr] 79 | |                 -> BTreeMap<K, V> {
[INFO] [stderr] 80 | |
[INFO] [stderr] ...  |
[INFO] [stderr] 136| |             }
[INFO] [stderr] 137| |         }
[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 pulse v0.5.3
[INFO] [stderr]    Compiling wayland-client v0.5.12
[INFO] [stderr]    Compiling glutin v0.6.2
[INFO] [stderr]    Compiling glium v0.15.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.8
[INFO] [stderr]    Compiling num v0.1.36
[INFO] [stderr]    Compiling serde_json v0.8.4
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling specs v0.7.0
[INFO] [stderr]    Compiling enum_primitive v0.1.0
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]    Compiling flate2 v0.2.14
[INFO] [stderr]    Compiling png v0.5.2
[INFO] [stderr]    Compiling image v0.10.4
[INFO] [stderr]    Compiling libloading v0.3.1
[INFO] [stderr]    Compiling dlib v0.3.1
[INFO] [stderr]    Compiling wayland-sys v0.5.11
[INFO] [stderr]    Compiling wayland-window v0.2.3
[INFO] [stderr]    Compiling wayland-kbd v0.3.6
[INFO] [stderr]    Compiling radiant-rs v0.1.1
[INFO] [stderr]    Compiling loose-coupling v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `state`
[INFO] [stderr]   --> src/main.rs:41:24
[INFO] [stderr]    |
[INFO] [stderr] 41 |     utils::renderloop(|state| {
[INFO] [stderr]    |                        ^^^^^ help: consider prefixing with an underscore: `_state`
[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-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/loose_coupling-8cb94b4394276e4d.loose_coupling.32sfsgmz-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/loose_coupling-8cb94b4394276e4d.loose_coupling.32sfsgmz-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/loose_coupling-8cb94b4394276e4d.loose_coupling.32sfsgmz-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/loose_coupling-8cb94b4394276e4d.loose_coupling.32sfsgmz-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/loose_coupling-8cb94b4394276e4d.loose_coupling.32sfsgmz-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/loose_coupling-8cb94b4394276e4d.loose_coupling.32sfsgmz-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/loose_coupling-8cb94b4394276e4d.loose_coupling.32sfsgmz-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/loose_coupling-8cb94b4394276e4d.loose_coupling.32sfsgmz-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/loose_coupling-8cb94b4394276e4d.loose_coupling.32sfsgmz-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/loose_coupling-8cb94b4394276e4d.loose_coupling.32sfsgmz-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/loose_coupling-8cb94b4394276e4d.loose_coupling.32sfsgmz-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/loose_coupling-8cb94b4394276e4d.loose_coupling.32sfsgmz-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/loose_coupling-8cb94b4394276e4d.loose_coupling.32sfsgmz-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/loose_coupling-8cb94b4394276e4d.loose_coupling.32sfsgmz-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/loose_coupling-8cb94b4394276e4d.loose_coupling.32sfsgmz-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/loose_coupling-8cb94b4394276e4d.loose_coupling.32sfsgmz-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/loose_coupling-8cb94b4394276e4d" "/opt/crater/target/debug/deps/loose_coupling-8cb94b4394276e4d.3xzn8l67ebd35bki.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/target/debug/build/miniz-sys-49111925f5570d64/out" "-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/libradiant_rs-6c55d19b96664bda.rlib" "/opt/crater/target/debug/deps/libfont_loader-ccb6201a05929581.rlib" "/opt/crater/target/debug/deps/libfontconfig_sys-a511fbbe118d18e9.rlib" "/opt/crater/target/debug/deps/libunicode_normalization-659021e4f5243ba0.rlib" "/opt/crater/target/debug/deps/librusttype-307fa77a52c61ca9.rlib" "/opt/crater/target/debug/deps/liblinked_hash_map-e95be2ac7f74600f.rlib" "/opt/crater/target/debug/deps/libstb_truetype-979fb22d9fbc5049.rlib" "/opt/crater/target/debug/deps/libbyteorder-7a6cb2a3b8acfbbe.rlib" "/opt/crater/target/debug/deps/libarrayvec-af2801d96af555dd.rlib" "/opt/crater/target/debug/deps/libnodrop-609931d1f63bff6a.rlib" "/opt/crater/target/debug/deps/libodds-80127a2bf34214e5.rlib" "/opt/crater/target/debug/deps/libregex-a6a8238d19618cc3.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-50f75327e3b4e5a3.rlib" "/opt/crater/target/debug/deps/libthread_id-fb1745454bb1fe12.rlib" "/opt/crater/target/debug/deps/libaho_corasick-1b5b0a326ef5dcc0.rlib" "/opt/crater/target/debug/deps/libmemchr-9eefbb3f25992681.rlib" "/opt/crater/target/debug/deps/libimage-581745fd7f8feee6.rlib" "/opt/crater/target/debug/deps/libscoped_threadpool-ec04b9867a745bbb.rlib" "/opt/crater/target/debug/deps/libgif-cc10cff6070be026.rlib" "/opt/crater/target/debug/deps/libcolor_quant-5ed1948ed8404e4f.rlib" "/opt/crater/target/debug/deps/liblzw-623507a6e6e9c8a7.rlib" "/opt/crater/target/debug/deps/libjpeg_decoder-5666f3e153c0cd30.rlib" "/opt/crater/target/debug/deps/librayon-1f1141b4631ee79b.rlib" "/opt/crater/target/debug/deps/libnum_cpus-52bc6a6db93f0cbc.rlib" "/opt/crater/target/debug/deps/libdeque-bf18fd9798127910.rlib" "/opt/crater/target/debug/deps/libpng-bc90f99657563863.rlib" "/opt/crater/target/debug/deps/libflate2-a2a0ea320dd77ba2.rlib" "/opt/crater/target/debug/deps/libminiz_sys-c725d82238ed92ca.rlib" "/opt/crater/target/debug/deps/libinflate-a0a0686777de5cb6.rlib" "/opt/crater/target/debug/deps/libenum_primitive-2f9dfdfb29c443a9.rlib" "/opt/crater/target/debug/deps/libnum-e73e28a46480f35b.rlib" "/opt/crater/target/debug/deps/libnum_complex-6a21746f579050f8.rlib" "/opt/crater/target/debug/deps/libnum_rational-7abb305a2ebe864e.rlib" "/opt/crater/target/debug/deps/libnum_bigint-cc7537b57b253dea.rlib" "/opt/crater/target/debug/deps/librustc_serialize-9d882fed622c6e9e.rlib" "/opt/crater/target/debug/deps/libnum_iter-0c80d544ba1f8bd7.rlib" "/opt/crater/target/debug/deps/libnum_integer-4739295d8bcfef2e.rlib" "/opt/crater/target/debug/deps/libnum_traits-cf072775152a8823.rlib" "/opt/crater/target/debug/deps/libglium-291e3cf2a7591760.rlib" "/opt/crater/target/debug/deps/libglutin-846f532bdd8677e0.rlib" "/opt/crater/target/debug/deps/libwayland_window-c452e8d017077ec6.rlib" "/opt/crater/target/debug/deps/libtempfile-7338b3fba3ad0f3d.rlib" "/opt/crater/target/debug/deps/libbyteorder-28a061140ed2d54c.rlib" "/opt/crater/target/debug/deps/libwayland_kbd-01a13f2088d255d7.rlib" "/opt/crater/target/debug/deps/libmemmap-2492456ab0a65515.rlib" "/opt/crater/target/debug/deps/libosmesa_sys-816e588e7069bbde.rlib" "/opt/crater/target/debug/deps/libwayland_client-93504917bf2c30d8.rlib" "/opt/crater/target/debug/deps/libwayland_sys-47fdeb51820f8373.rlib" "/opt/crater/target/debug/deps/liblazy_static-c329193024da829b.rlib" "/opt/crater/target/debug/deps/libdlib-4ef495a4adfb47ce.rlib" "/opt/crater/target/debug/deps/liblibloading-dceae5f9907eb533.rlib" "/opt/crater/target/debug/deps/libcrossbeam-c53389e74d4c495f.rlib" "/opt/crater/target/debug/deps/libbitflags-b03ee8d07369378c.rlib" "/opt/crater/target/debug/deps/libx11_dl-93bbf64d6dad83c6.rlib" "/opt/crater/target/debug/deps/libshared_library-f0d3def2bfcec41e.rlib" "/opt/crater/target/debug/deps/libsmallvec-7c0ac661bdd99f33.rlib" "/opt/crater/target/debug/deps/libbacktrace-49122605a7df87ef.rlib" "/opt/crater/target/debug/deps/libbacktrace_sys-31eeedc36fbb7d83.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/liblazy_static-5b3a6350224c4bac.rlib" "/opt/crater/target/debug/deps/librand-3155e97dc819178f.rlib" "/opt/crater/target/debug/deps/libspecs-2933e37a8aebc68c.rlib" "/opt/crater/target/debug/deps/libtuple_utils-fd4d3cb239abe572.rlib" "/opt/crater/target/debug/deps/libfnv-cf1278a40212a7b7.rlib" "/opt/crater/target/debug/deps/libthreadpool-b63ea6d2f31f60ba.rlib" "/opt/crater/target/debug/deps/libpulse-86741ee38f3edd14.rlib" "/opt/crater/target/debug/deps/libatom-7df311ea2d093d0a.rlib" "/opt/crater/target/debug/deps/libmopa-bdc26a1b7551a1d8.rlib" "/opt/crater/target/debug/deps/libtime-d8882fbf4a52e179.rlib" "/opt/crater/target/debug/deps/liblibc-a442291025725117.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" "-lfontconfig" "-lfreetype" "-ldl" "-ldl" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /opt/crater/target/debug/deps/libbacktrace-49122605a7df87ef.rlib(backtrace-49122605a7df87ef.backtrace.31fykphs-cgu.5.rcgu.o): In function `backtrace::symbolize::libbacktrace::init_state::{{closure}}':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.2.3/src/symbolize/libbacktrace.rs:150: undefined reference to `backtrace_create_state'
[INFO] [stderr]           /opt/crater/target/debug/deps/libbacktrace-49122605a7df87ef.rlib(backtrace-49122605a7df87ef.backtrace.31fykphs-cgu.5.rcgu.o): In function `backtrace::symbolize::libbacktrace::resolve':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.2.3/src/symbolize/libbacktrace.rs:167: undefined reference to `backtrace_pcinfo'
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.2.3/src/symbolize/libbacktrace.rs:171: 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 `loose-coupling`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3d52c7f405a77794eeb8057664bdb3aae9e1e5daef029f177da7a3ea7aa14740"`
[INFO] running `"docker" "rm" "-f" "3d52c7f405a77794eeb8057664bdb3aae9e1e5daef029f177da7a3ea7aa14740"`
[INFO] [stdout] 3d52c7f405a77794eeb8057664bdb3aae9e1e5daef029f177da7a3ea7aa14740