[INFO] cloning repository https://github.com/malcx95/ascii-christmas-tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/malcx95/ascii-christmas-tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmalcx95%2Fascii-christmas-tree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmalcx95%2Fascii-christmas-tree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5f0ea6bbdca595b691b66c88a3fcdefdce8d2557
[INFO] testing malcx95/ascii-christmas-tree against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmalcx95%2Fascii-christmas-tree" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/malcx95/ascii-christmas-tree on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/malcx95/ascii-christmas-tree
[INFO] finished tweaking git repo https://github.com/malcx95/ascii-christmas-tree
[INFO] tweaked toml for git repo https://github.com/malcx95/ascii-christmas-tree written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/malcx95/ascii-christmas-tree already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b21cdfe12799495735f84075b73225837cb73d5a3b70e2aea18dbaa489bd0c7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8b21cdfe12799495735f84075b73225837cb73d5a3b70e2aea18dbaa489bd0c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b21cdfe12799495735f84075b73225837cb73d5a3b70e2aea18dbaa489bd0c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b21cdfe12799495735f84075b73225837cb73d5a3b70e2aea18dbaa489bd0c7", kill_on_drop: false }`
[INFO] [stdout] 8b21cdfe12799495735f84075b73225837cb73d5a3b70e2aea18dbaa489bd0c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85609d617c32d0f161661c978875d51684a9d8a2ddde7a1832cf34a4f881d04d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "85609d617c32d0f161661c978875d51684a9d8a2ddde7a1832cf34a4f881d04d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.18
[INFO] [stderr]    Compiling phf_shared v0.7.20
[INFO] [stderr]    Compiling serde v0.8.20
[INFO] [stderr]    Compiling gcc v0.3.40
[INFO] [stderr]    Compiling rustc-demangle v0.1.3
[INFO] [stderr]    Compiling smallvec v0.1.8
[INFO] [stderr]    Compiling wayland-scanner v0.5.11
[INFO] [stderr]    Compiling num-complex v0.1.35
[INFO] [stderr]    Compiling glutin v0.6.2
[INFO] [stderr]    Compiling glium v0.15.0
[INFO] [stderr]    Compiling phf v0.7.20
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling fs2 v0.2.5
[INFO] [stderr]    Compiling shared_library v0.1.5
[INFO] [stderr]    Compiling x11-dl v2.11.0
[INFO] [stderr]    Compiling memmap v0.2.3
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]    Compiling wayland-client v0.5.12
[INFO] [stderr]    Compiling phf_generator v0.7.20
[INFO] [stderr]    Compiling tempfile v2.1.4
[INFO] [stderr]    Compiling num-bigint v0.1.35
[INFO] [stderr]    Compiling phf_codegen v0.7.20
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]    Compiling target_build_utils v0.1.2
[INFO] [stderr]    Compiling num-rational v0.1.35
[INFO] [stderr]    Compiling num v0.1.36
[INFO] [stderr]    Compiling nalgebra v0.10.1
[INFO] [stderr]    Compiling serde_json v0.8.4
[INFO] [stderr]    Compiling libloading v0.3.1
[INFO] [stderr]    Compiling dlib v0.3.1
[INFO] [stderr]    Compiling wayland-sys v0.5.11
[INFO] [stderr]    Compiling wayland-window v0.2.3
[INFO] [stderr]    Compiling wayland-kbd v0.3.6
[INFO] [stderr]    Compiling caca_tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:43:26
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn init_caca() -> Result<(*mut libcaca_ffi::caca_display_t), String> {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let mut file = try!(File::open(path));
[INFO] [stdout]    |                    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |     try!(file.read_to_string(&mut contents));
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/caca_tree-7c9161de513a3173.caca_tree.5eskmvag-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/caca_tree-7c9161de513a3173.caca_tree.5eskmvag-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/caca_tree-7c9161de513a3173.caca_tree.5eskmvag-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/caca_tree-7c9161de513a3173.caca_tree.5eskmvag-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/caca_tree-7c9161de513a3173.caca_tree.5eskmvag-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/caca_tree-7c9161de513a3173.caca_tree.5eskmvag-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/caca_tree-7c9161de513a3173.caca_tree.5eskmvag-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/caca_tree-7c9161de513a3173.caca_tree.5eskmvag-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/caca_tree-7c9161de513a3173.caca_tree.5eskmvag-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/caca_tree-7c9161de513a3173.caca_tree.5eskmvag-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/caca_tree-7c9161de513a3173.caca_tree.5eskmvag-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/caca_tree-7c9161de513a3173.caca_tree.5eskmvag-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/caca_tree-7c9161de513a3173.caca_tree.5eskmvag-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/caca_tree-7c9161de513a3173.caca_tree.5eskmvag-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/caca_tree-7c9161de513a3173.caca_tree.5eskmvag-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/caca_tree-7c9161de513a3173.caca_tree.5eskmvag-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/caca_tree-7c9161de513a3173" "/opt/rustwide/target/debug/deps/caca_tree-7c9161de513a3173.3zt2i60z62zo9mqs.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lcaca" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libnalgebra-10c804add8fe858d.rlib" "/opt/rustwide/target/debug/deps/libnum-772aa9d537239ca2.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-f8fc02351064c56e.rlib" "/opt/rustwide/target/debug/deps/libnum_bigint-45d2a6b3e91c5a13.rlib" "/opt/rustwide/target/debug/deps/libnum_complex-62d1fcd4bd275e1c.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-28fe702df7b72886.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-d84ad30d21f42b38.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-27e2f9a0a819ec42.rlib" "/opt/rustwide/target/debug/deps/librustc_serialize-769867f34ef035ad.rlib" "/opt/rustwide/target/debug/deps/libglium-df5eccf3beae2a37.rlib" "/opt/rustwide/target/debug/deps/libglutin-b05a79b274b3f77a.rlib" "/opt/rustwide/target/debug/deps/libwayland_window-403f859ca4d211f4.rlib" "/opt/rustwide/target/debug/deps/libtempfile-fad4ac1dcd9ee932.rlib" "/opt/rustwide/target/debug/deps/librand-8ff0887adcb7fa02.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-67180debc2930133.rlib" "/opt/rustwide/target/debug/deps/libwayland_kbd-e0b8b7909014d356.rlib" "/opt/rustwide/target/debug/deps/libmemmap-2c8711303a5ef1c6.rlib" "/opt/rustwide/target/debug/deps/libosmesa_sys-d2a0adae2d89a29f.rlib" "/opt/rustwide/target/debug/deps/libwayland_client-1abeca29db369ba5.rlib" "/opt/rustwide/target/debug/deps/libwayland_sys-42de8f68f090a602.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-b1e4122682a51923.rlib" "/opt/rustwide/target/debug/deps/libdlib-79eaa44c3fc5ae37.rlib" "/opt/rustwide/target/debug/deps/liblibloading-61378d210aaa9637.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam-055cc3afc4b35e07.rlib" "/opt/rustwide/target/debug/deps/libbitflags-5491842f1301905a.rlib" "/opt/rustwide/target/debug/deps/libx11_dl-de3e8ca945780d4d.rlib" "/opt/rustwide/target/debug/deps/libshared_library-9e784a776d79b2f8.rlib" "/opt/rustwide/target/debug/deps/libsmallvec-abb4ee58b955db81.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-e755e501f1670f63.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-47a7ef54b0830603.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-44897c33622342d1.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-4dda033e97829cbd.rlib" "/opt/rustwide/target/debug/deps/libdbghelp-9b859a4b43489b4d.rlib" "/opt/rustwide/target/debug/deps/libwinapi-53d291ef9733f714.rlib" "/opt/rustwide/target/debug/deps/libkernel32-5d5d19a3cac54ca4.rlib" "/opt/rustwide/target/debug/deps/liblibc-a0ae046179b3f4dc.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-4efe5907bdd15024.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-7444fd17919e9af0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-0ee2f67026959ab7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-df1bcd1e82256d04.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-ed9ecf1b54021131.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-0ede66bb24e94b96.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-7c2de7f50940865c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-b138d50085fd4683.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-6576870d8f2b9ae2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-042a30c5f67b2c91.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-7b3f33d3dbe385dc.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-90b3063cd7b22527.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-17f9484f8dc4da1e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-df38345acd9d92e1.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-a5e10ca10bdd9e54.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9e5b4162eeef2cef.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-3a4e739a77468800.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-01-01-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-0f3a0c116d5e04d6.rlib" "-Wl,-Bdynamic" "-ldl" "-ldl" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lcaca
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `caca_tree`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "85609d617c32d0f161661c978875d51684a9d8a2ddde7a1832cf34a4f881d04d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85609d617c32d0f161661c978875d51684a9d8a2ddde7a1832cf34a4f881d04d", kill_on_drop: false }`
[INFO] [stdout] 85609d617c32d0f161661c978875d51684a9d8a2ddde7a1832cf34a4f881d04d