[INFO] updating cached repository ddowl/snakers
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ddowl/snakers
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ddowl/snakers" "work/ex/beta-1.37-6/sources/1.36.0/gh/ddowl/snakers"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/ddowl/snakers'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ddowl/snakers" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ddowl/snakers"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ddowl/snakers'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4ee47b151509b6a55e95afb015eb80bc3e1cae70
[INFO] sha for GitHub repo ddowl/snakers: 4ee47b151509b6a55e95afb015eb80bc3e1cae70
[INFO] validating manifest of ddowl/snakers on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ddowl/snakers on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ddowl/snakers
[INFO] finished frobbing ddowl/snakers
[INFO] frobbed toml for ddowl/snakers written to work/ex/beta-1.37-6/sources/1.36.0/gh/ddowl/snakers/Cargo.toml
[INFO] started frobbing ddowl/snakers
[INFO] finished frobbing ddowl/snakers
[INFO] frobbed toml for ddowl/snakers written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ddowl/snakers/Cargo.toml
[INFO] crate ddowl/snakers already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ddowl/snakers against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ddowl/snakers:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 68412c41ec55948e2ea6a7f417d10ce33c3b664f49207962f167b8079d300e23
[INFO] running `"docker" "start" "-a" "68412c41ec55948e2ea6a7f417d10ce33c3b664f49207962f167b8079d300e23"`
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling hashbrown v0.2.2
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]    Compiling enum-map-internals v0.1.2
[INFO] [stderr]    Compiling signal-hook-registry v1.0.1
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling toml v0.5.0
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling signal-hook v0.1.9
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling enumset_derive v0.3.2
[INFO] [stderr]    Compiling enum-map-derive v0.4.1
[INFO] [stderr]    Compiling enumset v0.3.19
[INFO] [stderr]    Compiling enum-map v0.5.0
[INFO] [stderr]    Compiling cursive v0.11.2
[INFO] [stderr]    Compiling snakers v0.1.0 (/opt/crater/workdir)
[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-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/snakers-8b65609ca78e19c8.snakers.d05md1xl-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/snakers-8b65609ca78e19c8.snakers.d05md1xl-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/snakers-8b65609ca78e19c8.snakers.d05md1xl-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/snakers-8b65609ca78e19c8.snakers.d05md1xl-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/snakers-8b65609ca78e19c8.snakers.d05md1xl-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/snakers-8b65609ca78e19c8.snakers.d05md1xl-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/snakers-8b65609ca78e19c8.snakers.d05md1xl-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/snakers-8b65609ca78e19c8.snakers.d05md1xl-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/snakers-8b65609ca78e19c8.snakers.d05md1xl-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/snakers-8b65609ca78e19c8.snakers.d05md1xl-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/snakers-8b65609ca78e19c8.snakers.d05md1xl-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/snakers-8b65609ca78e19c8.snakers.d05md1xl-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/snakers-8b65609ca78e19c8.snakers.d05md1xl-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/snakers-8b65609ca78e19c8.snakers.d05md1xl-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/snakers-8b65609ca78e19c8.snakers.d05md1xl-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/snakers-8b65609ca78e19c8.snakers.d05md1xl-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/snakers-8b65609ca78e19c8" "/opt/crater/target/debug/deps/snakers-8b65609ca78e19c8.vwv4ogb5j7w5g63.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/librand-1e1c1e762a3136fc.rlib" "/opt/crater/target/debug/deps/librand_xorshift-5e391b21601b8393.rlib" "/opt/crater/target/debug/deps/librand_pcg-e2e1a0d1728dcbd2.rlib" "/opt/crater/target/debug/deps/librand_hc-8d037a8bb74cc960.rlib" "/opt/crater/target/debug/deps/librand_chacha-caac59cbe4bbf74d.rlib" "/opt/crater/target/debug/deps/librand_isaac-8a1220a5cdc55703.rlib" "/opt/crater/target/debug/deps/librand_core-5af554ddf81cd17c.rlib" "/opt/crater/target/debug/deps/librand_os-bfc30c334326182c.rlib" "/opt/crater/target/debug/deps/librand_jitter-162e89fc4f3652f5.rlib" "/opt/crater/target/debug/deps/librand_core-4c9a550ae16dbf0f.rlib" "/opt/crater/target/debug/deps/libcursive-2a63eccdde7ddc11.rlib" "/opt/crater/target/debug/deps/libchrono-1de9c14a51f1884c.rlib" "/opt/crater/target/debug/deps/libtime-41ee13555cc0cd12.rlib" "/opt/crater/target/debug/deps/libncurses-4a5dc7b6e8a70731.rlib" "/opt/crater/target/debug/deps/libmaplit-b1ac42c0ec6f0c7b.rlib" "/opt/crater/target/debug/deps/libsignal_hook-f9408049a806549e.rlib" "/opt/crater/target/debug/deps/libsignal_hook_registry-b6db56ce5d4e5c95.rlib" "/opt/crater/target/debug/deps/libarc_swap-b67287d699998173.rlib" "/opt/crater/target/debug/deps/liblibc-6adf852fd4f18ec9.rlib" "/opt/crater/target/debug/deps/libcrossbeam_channel-5f16cc5b8052934c.rlib" "/opt/crater/target/debug/deps/libsmallvec-e0c425bf1f7f0c71.rlib" "/opt/crater/target/debug/deps/libcrossbeam_utils-9d5a10afd8b162c4.rlib" "/opt/crater/target/debug/deps/libowning_ref-f49604bedfa4ae1c.rlib" "/opt/crater/target/debug/deps/libstable_deref_trait-287a8a8ca6ec21fa.rlib" "/opt/crater/target/debug/deps/libnum-49084c066d6dde89.rlib" "/opt/crater/target/debug/deps/libnum_rational-c31ce97458fe9d8b.rlib" "/opt/crater/target/debug/deps/libnum_iter-01d89d19600da989.rlib" "/opt/crater/target/debug/deps/libnum_integer-9ca4ca22e0105bb2.rlib" "/opt/crater/target/debug/deps/libnum_complex-e901a08dbd52be97.rlib" "/opt/crater/target/debug/deps/libhashbrown-6e43e85040249c4f.rlib" "/opt/crater/target/debug/deps/libtoml-f06118896006ba05.rlib" "/opt/crater/target/debug/deps/libserde-55002885d91b08cb.rlib" "/opt/crater/target/debug/deps/liblog-7ee2fe78048b6c34.rlib" "/opt/crater/target/debug/deps/libcfg_if-ed68c9a1ad96df3c.rlib" "/opt/crater/target/debug/deps/libenum_map-77d11892630bd86e.rlib" "/opt/crater/target/debug/deps/libenum_map_internals-d648923edd8bdd68.rlib" "/opt/crater/target/debug/deps/libarray_macro-28b30b95c752e259.rlib" "/opt/crater/target/debug/deps/libenumset-0b8918ed2f42299e.rlib" "/opt/crater/target/debug/deps/libnum_traits-1f63f1ea91c56eb7.rlib" "/opt/crater/target/debug/deps/libxi_unicode-9f6fcb4238f45c55.rlib" "/opt/crater/target/debug/deps/libunicode_width-5c65625ac38072b6.rlib" "/opt/crater/target/debug/deps/libunicode_segmentation-9cdb6fcf4c16057e.rlib" "/opt/crater/target/debug/deps/liblazy_static-6a4e8ea56a445919.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-a80a1e8e09cafef8.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e0e6351da805c468.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-e04f54bafc95e331.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-67901d3322495bd5.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-bd390b1abaceaec1.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-312dd37fdc7bedfc.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-8ed0e51d58d644a3.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-8a423c320a6c707f.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-d6a95598e2238263.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d231614b153016eb.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-3821619027f463e4.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-1cfd794d18771a44.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-dcf33cf10c2452ef.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-c258fea34bf64bce.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 `snakers`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "68412c41ec55948e2ea6a7f417d10ce33c3b664f49207962f167b8079d300e23"`
[INFO] running `"docker" "rm" "-f" "68412c41ec55948e2ea6a7f417d10ce33c3b664f49207962f167b8079d300e23"`
[INFO] [stdout] 68412c41ec55948e2ea6a7f417d10ce33c3b664f49207962f167b8079d300e23