[INFO] updating cached repository e-matteson/pipit-keyboard
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/e-matteson/pipit-keyboard
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/e-matteson/pipit-keyboard" "work/ex/beta-1.38-1/sources/1.37.0/gh/e-matteson/pipit-keyboard"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/e-matteson/pipit-keyboard'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/e-matteson/pipit-keyboard" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/e-matteson/pipit-keyboard"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/e-matteson/pipit-keyboard'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c7c6c5e38ad2dbc26fa4ef02e99785d7a41116a4
[INFO] sha for GitHub repo e-matteson/pipit-keyboard: c7c6c5e38ad2dbc26fa4ef02e99785d7a41116a4
[INFO] validating manifest of e-matteson/pipit-keyboard 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 e-matteson/pipit-keyboard 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 e-matteson/pipit-keyboard
[INFO] finished frobbing e-matteson/pipit-keyboard
[INFO] frobbed toml for e-matteson/pipit-keyboard written to work/ex/beta-1.38-1/sources/1.37.0/gh/e-matteson/pipit-keyboard/Cargo.toml
[INFO] started frobbing e-matteson/pipit-keyboard
[INFO] finished frobbing e-matteson/pipit-keyboard
[INFO] frobbed toml for e-matteson/pipit-keyboard written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/e-matteson/pipit-keyboard/Cargo.toml
[INFO] crate e-matteson/pipit-keyboard 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 e-matteson/pipit-keyboard 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/e-matteson/pipit-keyboard:/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] e74e2760f810e665845408d43ca0c7e18a68a386de0150f4f25153ee72d1b24e
[INFO] running `"docker" "start" "-a" "e74e2760f810e665845408d43ca0c7e18a68a386de0150f4f25153ee72d1b24e"`
[INFO] [stderr]    Compiling serde v1.0.69
[INFO] [stderr]    Compiling stable_deref_trait v1.1.0
[INFO] [stderr]    Compiling reexport-proc-macro v1.0.5
[INFO] [stderr]    Compiling array-macro v1.0.2
[INFO] [stderr]    Compiling natord v1.0.9
[INFO] [stderr]    Compiling bit-vec v0.5.0
[INFO] [stderr]    Compiling svg v0.5.11
[INFO] [stderr]    Compiling ncurses v5.93.0
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling enumset v0.3.11
[INFO] [stderr]    Compiling syn v0.14.4
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling enum-map-derive v0.2.10
[INFO] [stderr]    Compiling serde_derive v1.0.69
[INFO] [stderr]    Compiling enum-map v0.2.36
[INFO] [stderr]    Compiling toml v0.4.6
[INFO] [stderr]    Compiling serde_yaml v0.7.5
[INFO] [stderr]    Compiling cursive v0.8.2
[INFO] [stderr]    Compiling pipit-keyboard v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/error.rs:113:32
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/types/all_data.rs:161:29
[INFO] [stderr]     |
[INFO] [stderr] 161 |                 if let Some(mut chord) = self.get_chord_in_mode(name, mode) {
[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] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/cheatsheet/mod.rs:77:17
[INFO] [stderr]    |
[INFO] [stderr] 77 |             let mut pos = col_positions
[INFO] [stderr]    |                 ----^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[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/main-2081caadeff624e7.main.6caemtst-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/main-2081caadeff624e7.main.6caemtst-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/main-2081caadeff624e7.main.6caemtst-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/main-2081caadeff624e7.main.6caemtst-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/main-2081caadeff624e7.main.6caemtst-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/main-2081caadeff624e7.main.6caemtst-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/main-2081caadeff624e7.main.6caemtst-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/main-2081caadeff624e7.main.6caemtst-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/main-2081caadeff624e7.main.6caemtst-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/main-2081caadeff624e7.main.6caemtst-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/main-2081caadeff624e7.main.6caemtst-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/main-2081caadeff624e7.main.6caemtst-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/main-2081caadeff624e7.main.6caemtst-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/main-2081caadeff624e7.main.6caemtst-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/main-2081caadeff624e7.main.6caemtst-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/main-2081caadeff624e7.main.6caemtst-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/main-2081caadeff624e7" "/opt/crater/target/debug/deps/main-2081caadeff624e7.1iwv3znzy76v1s5o.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/libclap-882a8e17f5a2dd87.rlib" "/opt/crater/target/debug/deps/libvec_map-d1ee0a45638c2bc7.rlib" "/opt/crater/target/debug/deps/libtextwrap-92be40a5376d416f.rlib" "/opt/crater/target/debug/deps/libstrsim-c714b4fac07361e2.rlib" "/opt/crater/target/debug/deps/libbitflags-70a7e6d2f9d4aa58.rlib" "/opt/crater/target/debug/deps/libatty-1a15fadf1725a577.rlib" "/opt/crater/target/debug/deps/libansi_term-ab3d266e25626249.rlib" "/opt/crater/target/debug/deps/liblazy_static-159edd98394cf90d.rlib" "/opt/crater/target/debug/deps/libtime-a7dacc2f71bb868f.rlib" "/opt/crater/target/debug/deps/libsvg-65abc49dd0418eae.rlib" "/opt/crater/target/debug/deps/libserde_yaml-8ffbe30c9a37cf1f.rlib" "/opt/crater/target/debug/deps/libyaml_rust-4de6e43708f1d847.rlib" "/opt/crater/target/debug/deps/liblinked_hash_map-3cb577ab32156d8a.rlib" "/opt/crater/target/debug/deps/libdtoa-dbece04ab2440d63.rlib" "/opt/crater/target/debug/deps/libnatord-9a98b911a4c632b8.rlib" "/opt/crater/target/debug/deps/libitertools-1149624923914a23.rlib" "/opt/crater/target/debug/deps/libeither-1d8cfd8a86cf0dc0.rlib" "/opt/crater/target/debug/deps/libcursive-83e8ede2d0f3028f.rlib" "/opt/crater/target/debug/deps/libncurses-ecb4e019cff888b0.rlib" "/opt/crater/target/debug/deps/libxi_unicode-1d94438a6121fc07.rlib" "/opt/crater/target/debug/deps/libunicode_width-854b98bbb65b7690.rlib" "/opt/crater/target/debug/deps/libunicode_segmentation-329e7744010608fb.rlib" "/opt/crater/target/debug/deps/libtoml-6c103b96da8d8ced.rlib" "/opt/crater/target/debug/deps/libserde-1761f931d15bb627.rlib" "/opt/crater/target/debug/deps/libowning_ref-a7dc6a848d6a3525.rlib" "/opt/crater/target/debug/deps/libstable_deref_trait-eb0cfa5394b99acb.rlib" "/opt/crater/target/debug/deps/libnum-c61678409b3e0098.rlib" "/opt/crater/target/debug/deps/libnum_rational-24d1bde2d9c2ffa9.rlib" "/opt/crater/target/debug/deps/libnum_bigint-083518c6c92e6fd4.rlib" "/opt/crater/target/debug/deps/librand-491943e98e6e4ec0.rlib" "/opt/crater/target/debug/deps/liblibc-8f6d2a92b9de74ec.rlib" "/opt/crater/target/debug/deps/libnum_complex-f7fee3b1865ca81e.rlib" "/opt/crater/target/debug/deps/librustc_serialize-cc29b8ffd74fbfca.rlib" "/opt/crater/target/debug/deps/libnum_iter-780754baadb0392d.rlib" "/opt/crater/target/debug/deps/libnum_integer-69f6c7b7e7338d34.rlib" "/opt/crater/target/debug/deps/libmaplit-a5685f2e36919e59.rlib" "/opt/crater/target/debug/deps/liblog-68057761adbfa3dc.rlib" "/opt/crater/target/debug/deps/libcfg_if-02c283d48e44cfa5.rlib" "/opt/crater/target/debug/deps/libenumset-5be65d97ffa7ba94.rlib" "/opt/crater/target/debug/deps/libnum_traits-6ee04903fe0bc7d4.rlib" "/opt/crater/target/debug/deps/libenum_map-173d2e451451e0c1.rlib" "/opt/crater/target/debug/deps/libreexport_proc_macro-6adc3150c12adf8f.rlib" "/opt/crater/target/debug/deps/libarray_macro-a6d63065b1c72082.rlib" "/opt/crater/target/debug/deps/libbyteorder-9c5019ad5864b905.rlib" "/opt/crater/target/debug/deps/libbit_vec-e988d35e287161d5.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" "-lncursesw" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lncursesw
[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 `pipit-keyboard`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e74e2760f810e665845408d43ca0c7e18a68a386de0150f4f25153ee72d1b24e"`
[INFO] running `"docker" "rm" "-f" "e74e2760f810e665845408d43ca0c7e18a68a386de0150f4f25153ee72d1b24e"`
[INFO] [stdout] e74e2760f810e665845408d43ca0c7e18a68a386de0150f4f25153ee72d1b24e