[INFO] updating cached repository ahwatts/graphplay2-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ahwatts/graphplay2-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ahwatts/graphplay2-rs" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ahwatts/graphplay2-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ahwatts/graphplay2-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ahwatts/graphplay2-rs" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ahwatts/graphplay2-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ahwatts/graphplay2-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6d968b9013554384669df1b29f4fefe393ebc171
[INFO] sha for GitHub repo ahwatts/graphplay2-rs: 6d968b9013554384669df1b29f4fefe393ebc171
[INFO] validating manifest of ahwatts/graphplay2-rs on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ahwatts/graphplay2-rs on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ahwatts/graphplay2-rs
[INFO] finished frobbing ahwatts/graphplay2-rs
[INFO] frobbed toml for ahwatts/graphplay2-rs written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ahwatts/graphplay2-rs/Cargo.toml
[INFO] started frobbing ahwatts/graphplay2-rs
[INFO] finished frobbing ahwatts/graphplay2-rs
[INFO] frobbed toml for ahwatts/graphplay2-rs written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/ahwatts/graphplay2-rs/Cargo.toml
[INFO] crate ahwatts/graphplay2-rs has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ahwatts/graphplay2-rs against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/ahwatts/graphplay2-rs:/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] ab87be7e0f20e310c67e9aa5ad0eec7dfa43ef679f0168336b58367eaa19d0cb
[INFO] running `"docker" "start" "-a" "ab87be7e0f20e310c67e9aa5ad0eec7dfa43ef679f0168336b58367eaa19d0cb"`
[INFO] [stderr]    Compiling num-bigint v0.1.35
[INFO] [stderr]    Compiling num-rational v0.1.35
[INFO] [stderr]    Compiling num v0.1.36
[INFO] [stderr]    Compiling nalgebra v0.10.1
[INFO] [stderr]    Compiling graphplay2 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/ply.rs:145:81
[INFO] [stderr]     |
[INFO] [stderr] 145 |                     let element = try!(elements.last_mut().ok_or(other_io_error(("Tried to add a property but there's no current element"))));
[INFO] [stderr]     |                                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] 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/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/graphplay2-fce1a23d3f51ea39.graphplay2.3tlrsdzv-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/graphplay2-fce1a23d3f51ea39.graphplay2.3tlrsdzv-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/graphplay2-fce1a23d3f51ea39.graphplay2.3tlrsdzv-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/graphplay2-fce1a23d3f51ea39.graphplay2.3tlrsdzv-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/graphplay2-fce1a23d3f51ea39.graphplay2.3tlrsdzv-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/graphplay2-fce1a23d3f51ea39.graphplay2.3tlrsdzv-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/graphplay2-fce1a23d3f51ea39.graphplay2.3tlrsdzv-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/graphplay2-fce1a23d3f51ea39.graphplay2.3tlrsdzv-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/graphplay2-fce1a23d3f51ea39.graphplay2.3tlrsdzv-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/graphplay2-fce1a23d3f51ea39.graphplay2.3tlrsdzv-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/graphplay2-fce1a23d3f51ea39.graphplay2.3tlrsdzv-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/graphplay2-fce1a23d3f51ea39.graphplay2.3tlrsdzv-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/graphplay2-fce1a23d3f51ea39.graphplay2.3tlrsdzv-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/graphplay2-fce1a23d3f51ea39.graphplay2.3tlrsdzv-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/graphplay2-fce1a23d3f51ea39.graphplay2.3tlrsdzv-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/graphplay2-fce1a23d3f51ea39.graphplay2.3tlrsdzv-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/graphplay2-fce1a23d3f51ea39" "/opt/crater/target/debug/deps/graphplay2-fce1a23d3f51ea39.32vdlz6dbi4vtb4a.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libglium-4f9fc9da285d600d.rlib" "/opt/crater/target/debug/deps/libglutin-10cfd975a52e47a0.rlib" "/opt/crater/target/debug/deps/libwayland_window-f89d87040845107a.rlib" "/opt/crater/target/debug/deps/libtempfile-75154b1c62f49156.rlib" "/opt/crater/target/debug/deps/libbyteorder-f73e38a3da06a0ba.rlib" "/opt/crater/target/debug/deps/libwayland_kbd-46afdad9628dba57.rlib" "/opt/crater/target/debug/deps/libmemmap-17f6c6bb07b05b10.rlib" "/opt/crater/target/debug/deps/libosmesa_sys-9f7d18de51f3c3df.rlib" "/opt/crater/target/debug/deps/libwayland_client-de265238666c056e.rlib" "/opt/crater/target/debug/deps/libwayland_sys-6ada63629a156fea.rlib" "/opt/crater/target/debug/deps/liblazy_static-17a1dfe8df737fe1.rlib" "/opt/crater/target/debug/deps/libdlib-485e97652b7acd79.rlib" "/opt/crater/target/debug/deps/liblibloading-d1640d0f95d8df41.rlib" "/opt/crater/target/debug/deps/libcrossbeam-c61a9b0f27a2d7f4.rlib" "/opt/crater/target/debug/deps/libbitflags-a08c32e0d1827ba5.rlib" "/opt/crater/target/debug/deps/libx11_dl-4630a3720da4586b.rlib" "/opt/crater/target/debug/deps/libshared_library-6be27fb0e7eb7012.rlib" "/opt/crater/target/debug/deps/libsmallvec-6223ca88d0870ac5.rlib" "/opt/crater/target/debug/deps/libbacktrace-f8bcb4cb750f9c9d.rlib" "/opt/crater/target/debug/deps/libbacktrace_sys-d088574941fbec78.rlib" "/opt/crater/target/debug/deps/librustc_demangle-bedd9530c131cc28.rlib" "/opt/crater/target/debug/deps/libcfg_if-093b3a73669c0adf.rlib" "/opt/crater/target/debug/deps/libdbghelp-b3513b10232833cd.rlib" "/opt/crater/target/debug/deps/libwinapi-7dff080b6462bfe0.rlib" "/opt/crater/target/debug/deps/libkernel32-9b717afd956943fe.rlib" "/opt/crater/target/debug/deps/liblazy_static-126057301ec7e4c8.rlib" "/opt/crater/target/debug/deps/libnalgebra-723fdb81de669512.rlib" "/opt/crater/target/debug/deps/libnum-c366eb271fea9631.rlib" "/opt/crater/target/debug/deps/libnum_rational-2e0273a68ef12c75.rlib" "/opt/crater/target/debug/deps/libnum_bigint-ef5d4cf3746fb640.rlib" "/opt/crater/target/debug/deps/libnum_complex-109462234b92fa8f.rlib" "/opt/crater/target/debug/deps/libnum_iter-2184a3e5c79aebad.rlib" "/opt/crater/target/debug/deps/libnum_integer-006789bef05da2bf.rlib" "/opt/crater/target/debug/deps/libnum_traits-7af8442081a08a2a.rlib" "/opt/crater/target/debug/deps/librand-25c25302f11e0dea.rlib" "/opt/crater/target/debug/deps/liblibc-7f3cd8e33873d9dc.rlib" "/opt/crater/target/debug/deps/librustc_serialize-746afecadf994b7c.rlib" "/opt/crater/target/debug/deps/libbyteorder-2dac41805c00b07d.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-8469d768695d9748.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-786c0f406992159b.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-eda54ffd3e6402cc.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-3b59adbc83c396a4.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-1d2bb09f4dcbd4be.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-e96acda46b77a2fd.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-596074f575b1f832.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-57f280c1596673cd.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-16132b5b2ecf9ec1.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-37286a0a9c4289ff.rlib" "-Wl,-Bdynamic" "-ldl" "-ldl" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /opt/crater/target/debug/deps/libbacktrace-f8bcb4cb750f9c9d.rlib(backtrace-f8bcb4cb750f9c9d.backtrace.8na41fud-cgu.12.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-f8bcb4cb750f9c9d.rlib(backtrace-f8bcb4cb750f9c9d.backtrace.8na41fud-cgu.12.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 `graphplay2`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "ab87be7e0f20e310c67e9aa5ad0eec7dfa43ef679f0168336b58367eaa19d0cb"`
[INFO] running `"docker" "rm" "-f" "ab87be7e0f20e310c67e9aa5ad0eec7dfa43ef679f0168336b58367eaa19d0cb"`
[INFO] [stdout] ab87be7e0f20e310c67e9aa5ad0eec7dfa43ef679f0168336b58367eaa19d0cb