[INFO] updating cached repository https://github.com/museun/png2sixel
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b201a62d3b8f2f2e6a0869381d7b2587425ba116
[INFO] testing museun/png2sixel against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuseun%2Fpng2sixel" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/museun/png2sixel on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/museun/png2sixel
[INFO] finished tweaking git repo https://github.com/museun/png2sixel
[INFO] tweaked toml for git repo https://github.com/museun/png2sixel written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/museun/png2sixel already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 6cdf8c0d656554eb2cbe66f129c613ca01c61fb75ea9021d05f2d4e344578f87
[INFO] running `"docker" "start" "-a" "6cdf8c0d656554eb2cbe66f129c613ca01c61fb75ea9021d05f2d4e344578f87"`
[INFO] [stderr]    Compiling image v0.21.1
[INFO] [stderr]    Compiling png2sixel v0.1.0 (/opt/rustwide/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/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/png2sixel-6b4d0783008fd7ea.png2sixel.84b242o9-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-6b4d0783008fd7ea.png2sixel.84b242o9-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-6b4d0783008fd7ea.png2sixel.84b242o9-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-6b4d0783008fd7ea.png2sixel.84b242o9-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-6b4d0783008fd7ea.png2sixel.84b242o9-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-6b4d0783008fd7ea.png2sixel.84b242o9-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-6b4d0783008fd7ea.png2sixel.84b242o9-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-6b4d0783008fd7ea.png2sixel.84b242o9-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-6b4d0783008fd7ea.png2sixel.84b242o9-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-6b4d0783008fd7ea.png2sixel.84b242o9-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-6b4d0783008fd7ea.png2sixel.84b242o9-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-6b4d0783008fd7ea.png2sixel.84b242o9-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-6b4d0783008fd7ea.png2sixel.84b242o9-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-6b4d0783008fd7ea.png2sixel.84b242o9-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-6b4d0783008fd7ea.png2sixel.84b242o9-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-6b4d0783008fd7ea.png2sixel.84b242o9-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/png2sixel-6b4d0783008fd7ea" "/opt/rustwide/target/debug/deps/png2sixel-6b4d0783008fd7ea.2iawkpvy3hj9znpz.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lsixel" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libimage-0792abadad4a952d.rlib" "/opt/rustwide/target/debug/deps/libpng-05bd357a43dadfdb.rlib" "/opt/rustwide/target/debug/deps/libdeflate-3e3eed18c464894a.rlib" "/opt/rustwide/target/debug/deps/libinflate-47d8fa2f1000e401.rlib" "/opt/rustwide/target/debug/deps/libadler32-4c40b46846821ec1.rlib" "/opt/rustwide/target/debug/deps/libbitflags-3a40c6903761d7ac.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-f03ae0709a62abf2.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-778ca6a25434d54d.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-8b28b801c4c32d74.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-96f5ce4bbc698d03.rlib" "/opt/rustwide/target/debug/deps/liblzw-7031afe4e8382d45.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-b551d4293eeff0ab.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-db812c66f862af4c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e7871a21575d5ff7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-2f2c581bc0d759e6.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-35731cabc05dc8a0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-36477394541292db.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-8b706b170c1272d8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-801dbb3043ccf581.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-a32aa66ce6f72b21.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-d00ea3bfb2bb6c00.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d2c6ebe88c3e113c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-df74f62f6bb60621.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-2170473575daeedb.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-1a08089bbddc4f51.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-f8f562e5472ad5c3.rlib" "-Wl,-Bdynamic" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lsixel
[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 `png2sixel`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6cdf8c0d656554eb2cbe66f129c613ca01c61fb75ea9021d05f2d4e344578f87"`
[INFO] running `"docker" "rm" "-f" "6cdf8c0d656554eb2cbe66f129c613ca01c61fb75ea9021d05f2d4e344578f87"`
[INFO] [stdout] 6cdf8c0d656554eb2cbe66f129c613ca01c61fb75ea9021d05f2d4e344578f87