[INFO] crate lather 0.0.0 is already in cache
[INFO] extracting crate lather 0.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/lather/0.0.0
[INFO] extracting crate lather 0.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/lather/0.0.0
[INFO] validating manifest of lather-0.0.0 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 lather-0.0.0 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 lather-0.0.0
[INFO] finished frobbing lather-0.0.0
[INFO] frobbed toml for lather-0.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/lather/0.0.0/Cargo.toml
[INFO] started frobbing lather-0.0.0
[INFO] finished frobbing lather-0.0.0
[INFO] frobbed toml for lather-0.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/lather/0.0.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 lather-0.0.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/lather/0.0.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 2d2fcbeec398923c640ec29350472514fd495b854209ac34ef4823735c554f63
[INFO] running `"docker" "start" "-a" "2d2fcbeec398923c640ec29350472514fd495b854209ac34ef4823735c554f63"`
[INFO] [stderr]    Compiling ndarray v0.9.1
[INFO] [stderr]    Compiling cpython v0.1.0
[INFO] [stderr]    Compiling c_vec v1.0.12
[INFO] [stderr]    Compiling inflate v0.2.0
[INFO] [stderr]    Compiling rust-ini v0.10.3
[INFO] [stderr]    Compiling gnuplot v0.0.22
[INFO] [stderr]    Compiling quadrature v0.1.2
[INFO] [stderr]    Compiling GSL v0.4.31
[INFO] [stderr]    Compiling python3-sys v0.1.3
[INFO] [stderr]    Compiling rulinalg v0.4.2
[INFO] [stderr]    Compiling png v0.9.0
[INFO] [stderr]    Compiling numpy v0.2.1
[INFO] [stderr]    Compiling lather v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `Write` is imported redundantly
[INFO] [stderr]    --> src/simulation.rs:348:13
[INFO] [stderr]     |
[INFO] [stderr] 6   | use std::fmt::Write;
[INFO] [stderr]     |     --------------- the item `Write` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 348 |         use std::fmt::Write;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:84:25
[INFO] [stderr]    |
[INFO] [stderr] 84 |             for (input, mut output) in bis_data.iter().zip(bisectors.as_slice_mut().unwrap()) {
[INFO] [stderr]    |                         ----^^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] 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/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/bench-52d2b8b30fa02e10.bench.1c9kdv97-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/bench-52d2b8b30fa02e10.bench.1c9kdv97-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/bench-52d2b8b30fa02e10.bench.1c9kdv97-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/bench-52d2b8b30fa02e10.bench.1c9kdv97-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/bench-52d2b8b30fa02e10.bench.1c9kdv97-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/bench-52d2b8b30fa02e10.bench.1c9kdv97-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/bench-52d2b8b30fa02e10.bench.1c9kdv97-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/bench-52d2b8b30fa02e10.bench.1c9kdv97-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/bench-52d2b8b30fa02e10.bench.1c9kdv97-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/bench-52d2b8b30fa02e10.bench.1c9kdv97-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/bench-52d2b8b30fa02e10.bench.1c9kdv97-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/bench-52d2b8b30fa02e10.bench.1c9kdv97-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/bench-52d2b8b30fa02e10.bench.1c9kdv97-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/bench-52d2b8b30fa02e10.bench.1c9kdv97-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/bench-52d2b8b30fa02e10.bench.1c9kdv97-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/bench-52d2b8b30fa02e10.bench.1c9kdv97-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/bench-52d2b8b30fa02e10" "/opt/crater/target/debug/deps/bench-52d2b8b30fa02e10.5ak7atq53hazhu7s.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/liblather.rlib" "/opt/crater/target/debug/deps/librgsl-8de155a727fe57d2.rlib" "/opt/crater/target/debug/deps/libc_vec-c46479f165841a49.rlib" "/opt/crater/target/debug/deps/libquadrature-c94747ccccfd627e.rlib" "/opt/crater/target/debug/deps/librulinalg-fb763493dba558da.rlib" "/opt/crater/target/debug/deps/libnum-5caa7dd009747390.rlib" "/opt/crater/target/debug/deps/libnum_iter-710c4cd4b54241c7.rlib" "/opt/crater/target/debug/deps/librustfft-5977c4eebfa5e5b2.rlib" "/opt/crater/target/debug/deps/libnum_integer-e8e7d1ec85b23cb1.rlib" "/opt/crater/target/debug/deps/librand-c5856808b7d2d058.rlib" "/opt/crater/target/debug/deps/librand-a2977b71a5d1a0ed.rlib" "/opt/crater/target/debug/deps/libini-de89dcfb1d47d0c1.rlib" "/opt/crater/target/debug/deps/librayon-4031b53c7c929e19.rlib" "/opt/crater/target/debug/deps/librayon_core-b12ecf1af06f12e4.rlib" "/opt/crater/target/debug/deps/libnum_cpus-509d1090a02489e2.rlib" "/opt/crater/target/debug/deps/libcrossbeam_queue-f6668dbd335cb278.rlib" "/opt/crater/target/debug/deps/libcrossbeam_deque-552fdccb28a3ea8c.rlib" "/opt/crater/target/debug/deps/libcrossbeam_epoch-9b111a0846dc7592.rlib" "/opt/crater/target/debug/deps/libscopeguard-9b5b548023a82ae4.rlib" "/opt/crater/target/debug/deps/libmemoffset-e64a831d4be8abfc.rlib" "/opt/crater/target/debug/deps/libcrossbeam_utils-c7636b44f63f0536.rlib" "/opt/crater/target/debug/deps/liblazy_static-eb33edc716f69401.rlib" "/opt/crater/target/debug/deps/libarrayvec-ec8906360acdff5b.rlib" "/opt/crater/target/debug/deps/libnodrop-844425db77ee9480.rlib" "/opt/crater/target/debug/deps/libcfg_if-3028bdd7b8e15bb5.rlib" "/opt/crater/target/debug/deps/libnumpy-c077bb86067d4dc7.rlib" "/opt/crater/target/debug/deps/libndarray-ebde085aa352183c.rlib" "/opt/crater/target/debug/deps/libitertools-88234677430817bc.rlib" "/opt/crater/target/debug/deps/libeither-dfa9c429720c7162.rlib" "/opt/crater/target/debug/deps/libmatrixmultiply-073e3445d983e7bf.rlib" "/opt/crater/target/debug/deps/librawpointer-21fcc3474eb85ebb.rlib" "/opt/crater/target/debug/deps/libnum_complex-527c400245fd80b7.rlib" "/opt/crater/target/debug/deps/librustc_serialize-cc29b8ffd74fbfca.rlib" "/opt/crater/target/debug/deps/libcpython-78ea21871e79b2b4.rlib" "/opt/crater/target/debug/deps/libnum_traits-1653dfd91ced9a3c.rlib" "/opt/crater/target/debug/deps/libnum_traits-d11dcc7883adaecb.rlib" "/opt/crater/target/debug/deps/libpython3_sys-edaa70e9dba40cc5.rlib" "/opt/crater/target/debug/deps/liblibc-d019039477cac03b.rlib" "/opt/crater/target/debug/deps/libbencher-cad05bfc931bea71.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-4a76ff35a356aedf.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e11c7b3b3225afe2.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-13217ede3d276f16.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-621a9ee22da6caa1.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-546c844e8071bbeb.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-be9569e4d599746f.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-47d8845cef2a3bc5.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-017511bce73a530c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-be7979c57a08057b.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d6459c4f0817c67c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-580035dd98451925.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-aee5c24fff305dea.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8a55a4098920125a.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-9fc4b5be2ba5cc19.rlib" "-Wl,-Bdynamic" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /opt/crater/target/debug/deps/librgsl-8de155a727fe57d2.rlib(rgsl-8de155a727fe57d2.rgsl.3m8z4itr-cgu.4.rcgu.o): In function `rgsl::types::interpolation::InterpType::cspline':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/GSL-0.4.31/src/types/interpolation.rs:186: undefined reference to `gsl_interp_cspline'
[INFO] [stderr]           /opt/crater/target/debug/deps/librgsl-8de155a727fe57d2.rlib(rgsl-8de155a727fe57d2.rgsl.3m8z4itr-cgu.4.rcgu.o): In function `rgsl::types::interpolation::Spline::new':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/GSL-0.4.31/src/types/interpolation.rs:236: undefined reference to `gsl_spline_alloc'
[INFO] [stderr]           /opt/crater/target/debug/deps/librgsl-8de155a727fe57d2.rlib(rgsl-8de155a727fe57d2.rgsl.3m8z4itr-cgu.4.rcgu.o): In function `rgsl::types::interpolation::Spline::init':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/GSL-0.4.31/src/types/interpolation.rs:248: undefined reference to `gsl_spline_init'
[INFO] [stderr]           /opt/crater/target/debug/deps/librgsl-8de155a727fe57d2.rlib(rgsl-8de155a727fe57d2.rgsl.3m8z4itr-cgu.4.rcgu.o): In function `rgsl::types::interpolation::Spline::eval':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/GSL-0.4.31/src/types/interpolation.rs:266: undefined reference to `gsl_spline_eval'
[INFO] [stderr]           /opt/crater/target/debug/deps/librgsl-8de155a727fe57d2.rlib(rgsl-8de155a727fe57d2.rgsl.3m8z4itr-cgu.4.rcgu.o): In function `<rgsl::types::interpolation::Spline as core::ops::drop::Drop>::drop':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/GSL-0.4.31/src/types/interpolation.rs:300: undefined reference to `gsl_spline_free'
[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 `lather`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "2d2fcbeec398923c640ec29350472514fd495b854209ac34ef4823735c554f63"`
[INFO] running `"docker" "rm" "-f" "2d2fcbeec398923c640ec29350472514fd495b854209ac34ef4823735c554f63"`
[INFO] [stdout] 2d2fcbeec398923c640ec29350472514fd495b854209ac34ef4823735c554f63