[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 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuseun%2Fpng2sixel" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/museun/png2sixel on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "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-2/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" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 7d86c7a4934bf64fb988cb227c06891469469c611edd2763e064c520fed1bbcc
[INFO] running `"docker" "start" "-a" "7d86c7a4934bf64fb988cb227c06891469469c611edd2763e064c520fed1bbcc"`
[INFO] [stderr]    Compiling png v0.14.0
[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/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/png2sixel-c79e2f5ba4a95872.png2sixel.7rv9cl3l-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-c79e2f5ba4a95872.png2sixel.7rv9cl3l-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-c79e2f5ba4a95872.png2sixel.7rv9cl3l-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-c79e2f5ba4a95872.png2sixel.7rv9cl3l-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-c79e2f5ba4a95872.png2sixel.7rv9cl3l-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-c79e2f5ba4a95872.png2sixel.7rv9cl3l-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-c79e2f5ba4a95872.png2sixel.7rv9cl3l-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-c79e2f5ba4a95872.png2sixel.7rv9cl3l-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-c79e2f5ba4a95872.png2sixel.7rv9cl3l-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-c79e2f5ba4a95872.png2sixel.7rv9cl3l-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-c79e2f5ba4a95872.png2sixel.7rv9cl3l-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-c79e2f5ba4a95872.png2sixel.7rv9cl3l-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-c79e2f5ba4a95872.png2sixel.7rv9cl3l-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-c79e2f5ba4a95872.png2sixel.7rv9cl3l-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-c79e2f5ba4a95872.png2sixel.7rv9cl3l-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-c79e2f5ba4a95872.png2sixel.7rv9cl3l-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/png2sixel-c79e2f5ba4a95872" "/opt/rustwide/target/debug/deps/png2sixel-c79e2f5ba4a95872.42thclrh2qtk7orr.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lsixel" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libimage-90b7a0f3a16e3c8c.rlib" "/opt/rustwide/target/debug/deps/libpng-9b5a63bbda16550c.rlib" "/opt/rustwide/target/debug/deps/libdeflate-8c5fc3f4c31251f7.rlib" "/opt/rustwide/target/debug/deps/libinflate-65056e5186e54958.rlib" "/opt/rustwide/target/debug/deps/libadler32-2b2d9f2ac243fcce.rlib" "/opt/rustwide/target/debug/deps/libbitflags-ac824a210725bad3.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-b131fa88a296d0a1.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-baafcc571f15ec34.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-3416add372f82fa7.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-cb412cedb055b888.rlib" "/opt/rustwide/target/debug/deps/liblzw-cee06389c23927f5.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-3ef1f6ebaa6479a4.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-12ce12f1efc08aa3.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-5d3cd1b3ddab72e4.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-f8222943dfd167e2.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-0cd00b2d3108cd48.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-485c05ba6ce1b438.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-63e6b1072426ba59.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-a421aff1d43911ee.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-3deef8ef4fe80dff.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-f65a176f0586269e.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-ad46d4080f4d7e57.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-da6c590582bf0885.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-837ca740df32db0a.rlib" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-db27c965e824589f.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.38.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-68a4f8466685ed76.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" "7d86c7a4934bf64fb988cb227c06891469469c611edd2763e064c520fed1bbcc"`
[INFO] running `"docker" "rm" "-f" "7d86c7a4934bf64fb988cb227c06891469469c611edd2763e064c520fed1bbcc"`
[INFO] [stdout] 7d86c7a4934bf64fb988cb227c06891469469c611edd2763e064c520fed1bbcc