[INFO] fetching crate ledcat 0.1.5...
[INFO] testing ledcat-0.1.5 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate ledcat 0.1.5 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate ledcat 0.1.5 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ledcat 0.1.5
[INFO] finished tweaking crates.io crate ledcat 0.1.5
[INFO] tweaked toml for crates.io crate ledcat 0.1.5 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gpio v0.3.0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=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-2020-06-03" "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] afd4c74574a86262dbea53d4e391534a9f7b39931a862fd166e68ad31de5fb3e
[INFO] running `"docker" "start" "-a" "afd4c74574a86262dbea53d4e391534a9f7b39931a862fd166e68ad31de5fb3e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling ledcat v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling case v0.1.0
[INFO] [stderr]    Compiling gpio v0.3.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling derive-error v0.0.4
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:374:51
[INFO] [stderr]     |
[INFO] [stderr] 374 |     let transpositions: Vec<Box<Transposition>> = try!(operations.into_iter()
[INFO] [stderr]     |                                                   ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/device/apa102.rs:27:40
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn write_frame(&self, writer: &mut io::Write, pixels: &[Pixel]) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/device/fluxled/mod.rs:244:20
[INFO] [stderr]     |
[INFO] [stderr] 244 |     type Err = Box<error::Error + Send + Sync>;
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/device/fluxled/mod.rs:253:43
[INFO] [stderr]     |
[INFO] [stderr] 253 |             .or_else(|_| -> Result<_, Box<error::Error + Send + Sync>> {
[INFO] [stderr]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/device/generic.rs:13:40
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn write_frame(&self, writer: &mut io::Write, pixels: &[Pixel]) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/device/hexws2811.rs:13:40
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn write_frame(&self, writer: &mut io::Write, pixels: &[Pixel]) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/device/lpd8806.rs:25:40
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn write_frame(&self, writer: &mut io::Write, pixels: &[Pixel]) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/device/sk9822.rs:27:40
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn write_frame(&self, writer: &mut io::Write, pixels: &[Pixel]) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/device/ws2812.rs:25:40
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn write_frame(&self, writer: &mut io::Write, pixels: &[Pixel]) -> io::Result<()> {
[INFO] [stderr]    |                                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/device/mod.rs:43:21
[INFO] [stderr]    |
[INFO] [stderr] 43 | impl Output for Box<Output> {
[INFO] [stderr]    |                     ^^^^^^ help: use `dyn`: `dyn Output`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/device/mod.rs:60:32
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn write_frame(&self, &mut io::Write, &[Pixel]) -> io::Result<()>;
[INFO] [stderr]    |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/device/mod.rs:82:37
[INFO] [stderr]    |
[INFO] [stderr] 82 |     fn write_frame(&self, out: &mut io::Write, frame: &[Pixel]) -> io::Result<()> {
[INFO] [stderr]    |                                     ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/device/mod.rs:111:16
[INFO] [stderr]     |
[INFO] [stderr] 111 |     Device(Box<Device>),
[INFO] [stderr]     |                ^^^^^^ help: use `dyn`: `dyn Device`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/device/mod.rs:113:16
[INFO] [stderr]     |
[INFO] [stderr] 113 |     Output(Box<Output>),
[INFO] [stderr]     |                ^^^^^^ help: use `dyn`: `dyn Output`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/driver/artnet/unicast.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 |     target: Box<Target>,
[INFO] [stderr]    |                 ^^^^^^ help: use `dyn`: `dyn Target`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/driver/artnet/unicast.rs:23:27
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn to(target: Box<Target>, frame_size: usize) -> io::Result<Unicast> {
[INFO] [stderr]    |                           ^^^^^^ help: use `dyn`: `dyn Target`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/driver/artnet/mod.rs:59:28
[INFO] [stderr]    |
[INFO] [stderr] 59 |     let artnet_target: Box<Target> = if args.is_present("broadcast") {
[INFO] [stderr]    |                            ^^^^^^ help: use `dyn`: `dyn Target`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/driver/spidev.rs:28:38
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub fn open(path: &path::Path, dev: &Device) -> Result<fs::File, driver::Error> {
[INFO] [stderr]    |                                      ^^^^^^ help: use `dyn`: `dyn Device`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/input/geometry.rs:45:32
[INFO] [stderr]    |
[INFO] [stderr] 45 | impl Transposition for Vec<Box<Transposition>> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^ help: use `dyn`: `dyn Transposition`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/input/select.rs:25:21
[INFO] [stderr]    |
[INFO] [stderr] 25 |     inputs: Vec<Box<ReadFd + Send>>,
[INFO] [stderr]    |                     ^^^^^^^^^^^^^ help: use `dyn`: `dyn ReadFd + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/input/select.rs:39:39
[INFO] [stderr]    |
[INFO] [stderr] 39 |         let files: io::Result<Vec<Box<ReadFd + Send>>> = filenames.into_iter().map(|filename| {
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn ReadFd + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/input/select.rs:63:22
[INFO] [stderr]    |
[INFO] [stderr] 63 |             Ok(Box::<ReadFd + Send>::from(Box::new(file)))
[INFO] [stderr]    |                      ^^^^^^^^^^^^^ help: use `dyn`: `dyn ReadFd + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/input/select.rs:68:33
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn from(inputs: Vec<Box<ReadFd + Send>>, switch_after: usize, when_eof: WhenEOF, clear_timeout: Option<time::Duration>) -> Reader {
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^ help: use `dyn`: `dyn ReadFd + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:164:21
[INFO] [stderr]     |
[INFO] [stderr] 164 |     let output: Box<Output> = {
[INFO] [stderr]     |                     ^^^^^^ help: use `dyn`: `dyn Output`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:190:33
[INFO] [stderr]     |
[INFO] [stderr] 190 |                 let output: Box<io::Write + Send> = match driver_name.as_str() {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn io::Write + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:374:33
[INFO] [stderr]     |
[INFO] [stderr] 374 |     let transpositions: Vec<Box<Transposition>> = try!(operations.into_iter()
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^ help: use `dyn`: `dyn Transposition`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:375:35
[INFO] [stderr]     |
[INFO] [stderr] 375 |         .map(|name| -> Result<Box<Transposition>, String> {
[INFO] [stderr]     |                                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn Transposition`
[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/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/ledcat-dbf1036a6b175d70.ledcat.26gjerfo-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/ledcat-dbf1036a6b175d70.ledcat.26gjerfo-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/ledcat-dbf1036a6b175d70.ledcat.26gjerfo-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/ledcat-dbf1036a6b175d70.ledcat.26gjerfo-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/ledcat-dbf1036a6b175d70.ledcat.26gjerfo-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/ledcat-dbf1036a6b175d70.ledcat.26gjerfo-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/ledcat-dbf1036a6b175d70.ledcat.26gjerfo-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/ledcat-dbf1036a6b175d70.ledcat.26gjerfo-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/ledcat-dbf1036a6b175d70.ledcat.26gjerfo-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/ledcat-dbf1036a6b175d70.ledcat.26gjerfo-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/ledcat-dbf1036a6b175d70.ledcat.26gjerfo-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/ledcat-dbf1036a6b175d70.ledcat.26gjerfo-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/ledcat-dbf1036a6b175d70.ledcat.26gjerfo-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/ledcat-dbf1036a6b175d70.ledcat.26gjerfo-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/ledcat-dbf1036a6b175d70.ledcat.26gjerfo-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/ledcat-dbf1036a6b175d70.ledcat.26gjerfo-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/ledcat-dbf1036a6b175d70" "/opt/rustwide/target/debug/deps/ledcat-dbf1036a6b175d70.plgfp4pcc30h85f.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/workdir/components/rpi-rgb-led-matrix/lib" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "-Wl,--whole-archive" "-lrgbmatrix" "-Wl,--no-whole-archive" "-Wl,-Bdynamic" "-lstdc++" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libregex-9d7abde785476cae.rlib" "/opt/rustwide/target/debug/deps/libthread_local-8d83e4901f0f282f.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-36bd8bbfaaa85bd1.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-54fdda16b5257135.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-0b4c429c60f353ff.rlib" "/opt/rustwide/target/debug/deps/libmemchr-f8260b06e2dd8573.rlib" "/opt/rustwide/target/debug/deps/libnix-d8532dd294f6b7ee.rlib" "/opt/rustwide/target/debug/deps/libvoid-54fa5ba7557385ce.rlib" "/opt/rustwide/target/debug/deps/libbytes-2ffcba0cde1fb7f2.rlib" "/opt/rustwide/target/debug/deps/libiovec-53711fde944e9042.rlib" "/opt/rustwide/target/debug/deps/libnet2-2fe4992f274b56f3.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-0d7329a98a9ffead.rlib" "/opt/rustwide/target/debug/deps/libgpio-2a92696b4e4d424b.rlib" "/opt/rustwide/target/debug/deps/libclap-7405bb46f1060ba2.rlib" "/opt/rustwide/target/debug/deps/libvec_map-2ea354767dfdcf76.rlib" "/opt/rustwide/target/debug/deps/libtextwrap-7ce917c1e40e3b24.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-f2de9f6717fae86f.rlib" "/opt/rustwide/target/debug/deps/libstrsim-7ef4ee0940d816f7.rlib" "/opt/rustwide/target/debug/deps/libbitflags-a637fa8d282392d5.rlib" "/opt/rustwide/target/debug/deps/libatty-732074f349571b64.rlib" "/opt/rustwide/target/debug/deps/liblibc-2e17c5c99334ee98.rlib" "/opt/rustwide/target/debug/deps/libansi_term-5f50d48905eb9d7a.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-78580fbf595daae7.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-44f8eb3d0b2fad61.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-abc626f09920d361.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-546e83c8973f1a65.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-12768dfc68674934.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-e06867e4497f2ee8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-cbc579f43f6df57b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-7abd6d5a7ebf9a23.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-46423c7bc03bd327.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-fc3773ed7bc68f07.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-9cdc98176efd27e2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-02d88502a763e06b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-8cdc9d38dd6cd3ce.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-336f7d63e72901ef.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-57917b1be5233117.rlib" "-Wl,-Bdynamic" "-lutil" "-ldl" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -lrgbmatrix
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 27 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `ledcat`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "afd4c74574a86262dbea53d4e391534a9f7b39931a862fd166e68ad31de5fb3e"`
[INFO] running `"docker" "rm" "-f" "afd4c74574a86262dbea53d4e391534a9f7b39931a862fd166e68ad31de5fb3e"`
[INFO] [stdout] afd4c74574a86262dbea53d4e391534a9f7b39931a862fd166e68ad31de5fb3e