[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 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/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 35f84e48515983c3bbe5488bd552a6c633227f6eb514a7d458bee785c57eedfb
[INFO] running `"docker" "start" "-a" "35f84e48515983c3bbe5488bd552a6c633227f6eb514a7d458bee785c57eedfb"`
[INFO] [stderr]    Compiling cpython v0.1.0
[INFO] [stderr]    Compiling c_vec v1.0.12
[INFO] [stderr]    Compiling gnuplot v0.0.22
[INFO] [stderr]    Compiling quadrature v0.1.2
[INFO] [stderr]    Compiling GSL v0.4.31
[INFO] [stderr]    Compiling rustfft v2.1.0
[INFO] [stderr]    Compiling python3-sys v0.1.3
[INFO] [stderr]    Compiling ndarray v0.9.1
[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/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/bench-1d03e394519f7cfb.bench.d3kt97qt-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/bench-1d03e394519f7cfb.bench.d3kt97qt-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/bench-1d03e394519f7cfb.bench.d3kt97qt-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/bench-1d03e394519f7cfb.bench.d3kt97qt-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/bench-1d03e394519f7cfb.bench.d3kt97qt-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/bench-1d03e394519f7cfb.bench.d3kt97qt-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/bench-1d03e394519f7cfb.bench.d3kt97qt-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/bench-1d03e394519f7cfb.bench.d3kt97qt-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/bench-1d03e394519f7cfb.bench.d3kt97qt-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/bench-1d03e394519f7cfb.bench.d3kt97qt-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/bench-1d03e394519f7cfb.bench.d3kt97qt-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/bench-1d03e394519f7cfb.bench.d3kt97qt-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/bench-1d03e394519f7cfb.bench.d3kt97qt-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/bench-1d03e394519f7cfb.bench.d3kt97qt-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/bench-1d03e394519f7cfb.bench.d3kt97qt-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/bench-1d03e394519f7cfb.bench.d3kt97qt-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/bench-1d03e394519f7cfb" "/opt/crater/target/debug/deps/bench-1d03e394519f7cfb.1ue8cn5nyysyyi7n.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-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/liblather.rlib" "/opt/crater/target/debug/deps/librgsl-0fdf92ede81c34aa.rlib" "/opt/crater/target/debug/deps/libc_vec-0cf308e42bbc7a1f.rlib" "/opt/crater/target/debug/deps/libquadrature-876a12c3c30ebaa0.rlib" "/opt/crater/target/debug/deps/librulinalg-74d12a5ce95b7ec2.rlib" "/opt/crater/target/debug/deps/libnum-a5efe8b19f8dba1e.rlib" "/opt/crater/target/debug/deps/libnum_iter-161e13ffd3321f27.rlib" "/opt/crater/target/debug/deps/librustfft-21fd77a89358ebbd.rlib" "/opt/crater/target/debug/deps/libnum_integer-440f23443e3e87b1.rlib" "/opt/crater/target/debug/deps/librand-5eda43279f0ef45c.rlib" "/opt/crater/target/debug/deps/librand-7efbcbd89944bda6.rlib" "/opt/crater/target/debug/deps/libini-b5d45a43faa060eb.rlib" "/opt/crater/target/debug/deps/librayon-262348430faeee33.rlib" "/opt/crater/target/debug/deps/librayon_core-d94e2c45df6d61b3.rlib" "/opt/crater/target/debug/deps/libnum_cpus-b569161181e0c021.rlib" "/opt/crater/target/debug/deps/libcrossbeam_queue-2589c79105784e0d.rlib" "/opt/crater/target/debug/deps/libcrossbeam_deque-3a8837810abbdf66.rlib" "/opt/crater/target/debug/deps/libcrossbeam_epoch-8ce32638c5f827b5.rlib" "/opt/crater/target/debug/deps/libscopeguard-0bc963131f7c0d17.rlib" "/opt/crater/target/debug/deps/libmemoffset-d44318d335d18b97.rlib" "/opt/crater/target/debug/deps/libcrossbeam_utils-e32b73b6a212c837.rlib" "/opt/crater/target/debug/deps/liblazy_static-1f7a4359e40a6da9.rlib" "/opt/crater/target/debug/deps/libarrayvec-1cff3f0e2df954b3.rlib" "/opt/crater/target/debug/deps/libnodrop-7f98e5f8ec110eeb.rlib" "/opt/crater/target/debug/deps/libcfg_if-c978b2f886ff1de7.rlib" "/opt/crater/target/debug/deps/libnumpy-623622288fad0b14.rlib" "/opt/crater/target/debug/deps/libndarray-0cccfa650862422b.rlib" "/opt/crater/target/debug/deps/libitertools-49d310722aaa1595.rlib" "/opt/crater/target/debug/deps/libeither-0991b1b51775eba9.rlib" "/opt/crater/target/debug/deps/libmatrixmultiply-b856c59a72f2ed38.rlib" "/opt/crater/target/debug/deps/librawpointer-65262f271f4611c8.rlib" "/opt/crater/target/debug/deps/libnum_complex-f09a0b11b536aeda.rlib" "/opt/crater/target/debug/deps/librustc_serialize-fc0a027b4489f806.rlib" "/opt/crater/target/debug/deps/libcpython-ab628c0f5152975c.rlib" "/opt/crater/target/debug/deps/libnum_traits-85d0e05aa2cc3298.rlib" "/opt/crater/target/debug/deps/libnum_traits-c28daeab5210b49d.rlib" "/opt/crater/target/debug/deps/libpython3_sys-a20404cfd3499c73.rlib" "/opt/crater/target/debug/deps/liblibc-37f3d1c853b3b7bd.rlib" "/opt/crater/target/debug/deps/libbencher-f472577113e5b4d5.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" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /opt/crater/target/debug/deps/librgsl-0fdf92ede81c34aa.rlib(rgsl-0fdf92ede81c34aa.rgsl.bdh2n90f-cgu.5.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-0fdf92ede81c34aa.rlib(rgsl-0fdf92ede81c34aa.rgsl.bdh2n90f-cgu.5.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-0fdf92ede81c34aa.rlib(rgsl-0fdf92ede81c34aa.rgsl.bdh2n90f-cgu.5.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-0fdf92ede81c34aa.rlib(rgsl-0fdf92ede81c34aa.rgsl.bdh2n90f-cgu.5.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-0fdf92ede81c34aa.rlib(rgsl-0fdf92ede81c34aa.rgsl.bdh2n90f-cgu.5.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" "35f84e48515983c3bbe5488bd552a6c633227f6eb514a7d458bee785c57eedfb"`
[INFO] running `"docker" "rm" "-f" "35f84e48515983c3bbe5488bd552a6c633227f6eb514a7d458bee785c57eedfb"`
[INFO] [stdout] 35f84e48515983c3bbe5488bd552a6c633227f6eb514a7d458bee785c57eedfb