[INFO] fetching crate darkengine 0.1.0...
[INFO] testing darkengine-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate darkengine 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate darkengine 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate darkengine 0.1.0
[INFO] finished tweaking crates.io crate darkengine 0.1.0
[INFO] tweaked toml for crates.io crate darkengine 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ec598ad6abd0ce0d07126cbd12e8b82e147ddf1f0dfc8971c89a22b121af5ca
[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" "1ec598ad6abd0ce0d07126cbd12e8b82e147ddf1f0dfc8971c89a22b121af5ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ec598ad6abd0ce0d07126cbd12e8b82e147ddf1f0dfc8971c89a22b121af5ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ec598ad6abd0ce0d07126cbd12e8b82e147ddf1f0dfc8971c89a22b121af5ca", kill_on_drop: false }`
[INFO] [stdout] 1ec598ad6abd0ce0d07126cbd12e8b82e147ddf1f0dfc8971c89a22b121af5ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee6bd0c4b85149468796540470f89d3fe2a16632166ab16d062a900533fdbc13
[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" "ee6bd0c4b85149468796540470f89d3fe2a16632166ab16d062a900533fdbc13", kill_on_drop: false }`
[INFO] [stderr]    Compiling khronos_api v2.2.0
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling ears v0.5.1
[INFO] [stderr]    Compiling nom v1.2.4
[INFO] [stderr]    Compiling approx v0.1.1
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling bmfont v0.2.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling dlib v0.4.2
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling glfw-sys v3.3.2
[INFO] [stderr]    Compiling memmap v0.6.2
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling stb_truetype v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling ordered-float v1.1.1
[INFO] [stderr]    Compiling wayland-sys v0.20.12
[INFO] [stderr]    Compiling gif v0.10.3
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling semver v0.2.3
[INFO] [stderr]    Compiling wayland-commons v0.20.12
[INFO] [stderr]    Compiling rusttype v0.8.3
[INFO] [stderr]    Compiling wayland-scanner v0.20.12
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.20
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling rusttype v0.7.9
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling wayland-client v0.20.12
[INFO] [stderr]    Compiling wayland-protocols v0.20.12
[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/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/ears-f3b3bc8fb1703126.ears.7zjw33mi-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/ears-f3b3bc8fb1703126.ears.7zjw33mi-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/ears-f3b3bc8fb1703126.ears.7zjw33mi-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/ears-f3b3bc8fb1703126.ears.7zjw33mi-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/ears-f3b3bc8fb1703126.ears.7zjw33mi-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/ears-f3b3bc8fb1703126.ears.7zjw33mi-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/ears-f3b3bc8fb1703126.ears.7zjw33mi-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/ears-f3b3bc8fb1703126.ears.7zjw33mi-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/ears-f3b3bc8fb1703126.ears.7zjw33mi-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/ears-f3b3bc8fb1703126.ears.7zjw33mi-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/ears-f3b3bc8fb1703126.ears.7zjw33mi-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/ears-f3b3bc8fb1703126.ears.7zjw33mi-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/ears-f3b3bc8fb1703126.ears.7zjw33mi-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/ears-f3b3bc8fb1703126.ears.7zjw33mi-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/ears-f3b3bc8fb1703126.ears.7zjw33mi-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/ears-f3b3bc8fb1703126.ears.7zjw33mi-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/libears-f3b3bc8fb1703126.so" "-Wl,--version-script=/tmp/rustcnqHIfn/list" "/opt/rustwide/target/debug/deps/ears-f3b3bc8fb1703126.68dz4dji2z7080e.rcgu.o" "-shared" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/usr/local/opt/openal-soft/lib" "-L" "/usr/local/lib" "-L" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lopenal" "-lsndfile" "-Wl,-Bstatic" "-Wl,--whole-archive" "/tmp/rustcnqHIfn/liblazy_static-9850e1ed257f46c2.rlib" "-Wl,--no-whole-archive" "-Wl,--whole-archive" "/tmp/rustcnqHIfn/liblibc-e0846f52673851a4.rlib" "-Wl,--no-whole-archive" "-Wl,--start-group" "-L" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bdynamic" "-lstd-e12de7683a34c500" "-Wl,--end-group" "-Wl,-Bstatic" "/tmp/rustcnqHIfn/libcompiler_builtins-3f953ad652ab829a.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lsndfile
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ears`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ee6bd0c4b85149468796540470f89d3fe2a16632166ab16d062a900533fdbc13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee6bd0c4b85149468796540470f89d3fe2a16632166ab16d062a900533fdbc13", kill_on_drop: false }`
[INFO] [stdout] ee6bd0c4b85149468796540470f89d3fe2a16632166ab16d062a900533fdbc13