[INFO] updating cached repository https://github.com/museun/png2sixel
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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 master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuseun%2Fpng2sixel" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/museun/png2sixel on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "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 /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/museun/png2sixel already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f2d8afd3ec28b63840037fedc4603a6fdedc03a193e1a98efc97d620dab1948d
[INFO] running `"docker" "start" "-a" "f2d8afd3ec28b63840037fedc4603a6fdedc03a193e1a98efc97d620dab1948d"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling adler32 v1.0.3
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling deflate v0.7.19
[INFO] [stderr]    Compiling inflate v0.4.5
[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/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/png2sixel-d557c37ab2e93b73.png2sixel.2er6ehev-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-d557c37ab2e93b73.png2sixel.2er6ehev-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-d557c37ab2e93b73.png2sixel.2er6ehev-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-d557c37ab2e93b73.png2sixel.2er6ehev-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-d557c37ab2e93b73.png2sixel.2er6ehev-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-d557c37ab2e93b73.png2sixel.2er6ehev-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-d557c37ab2e93b73.png2sixel.2er6ehev-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-d557c37ab2e93b73.png2sixel.2er6ehev-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-d557c37ab2e93b73.png2sixel.2er6ehev-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-d557c37ab2e93b73.png2sixel.2er6ehev-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-d557c37ab2e93b73.png2sixel.2er6ehev-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-d557c37ab2e93b73.png2sixel.2er6ehev-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-d557c37ab2e93b73.png2sixel.2er6ehev-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-d557c37ab2e93b73.png2sixel.2er6ehev-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-d557c37ab2e93b73.png2sixel.2er6ehev-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/png2sixel-d557c37ab2e93b73.png2sixel.2er6ehev-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/png2sixel-d557c37ab2e93b73" "/opt/rustwide/target/debug/deps/png2sixel-d557c37ab2e93b73.4lk3cqdog73vdget.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lsixel" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libimage-17c34926458e2158.rlib" "/opt/rustwide/target/debug/deps/libpng-3ac5d7a76811596f.rlib" "/opt/rustwide/target/debug/deps/libdeflate-42065026664b3c8d.rlib" "/opt/rustwide/target/debug/deps/libinflate-cd9db7bbb5e887ee.rlib" "/opt/rustwide/target/debug/deps/libadler32-1066ed8150eef6fe.rlib" "/opt/rustwide/target/debug/deps/libbitflags-f26c1cc2a800726e.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-2dd774b370ab129d.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-fdafc84837d01add.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-c565ca02365bf7e0.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-bd7e186de06bd61a.rlib" "/opt/rustwide/target/debug/deps/liblzw-136c93306fc01c9c.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-b0988530c6a973fc.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1dac1a412c98f50d.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-b7841fd014bf83a1.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-338c0763450dca22.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-5f2e5d11836e0967.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-81a9070bd3553adf.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-e297830377b95af4.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-b38b87f2dd197fa0.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-601015f2e15e7e26.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-439f3a589bd88586.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-57ab7e6ac23ce11f.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-3aec7f88778e912a.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-b6806800b307d4b9.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-e49d7651b12f7563.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-e8266574e26adcc3.rlib" "-Wl,-Bdynamic" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-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" "f2d8afd3ec28b63840037fedc4603a6fdedc03a193e1a98efc97d620dab1948d"`
[INFO] running `"docker" "rm" "-f" "f2d8afd3ec28b63840037fedc4603a6fdedc03a193e1a98efc97d620dab1948d"`
[INFO] [stdout] f2d8afd3ec28b63840037fedc4603a6fdedc03a193e1a98efc97d620dab1948d