[INFO] updating cached repository lucdoebereiner/audiomesh
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lucdoebereiner/audiomesh
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lucdoebereiner/audiomesh" "work/ex/beta-1.37-6/sources/1.36.0/gh/lucdoebereiner/audiomesh"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/lucdoebereiner/audiomesh'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lucdoebereiner/audiomesh" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lucdoebereiner/audiomesh"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lucdoebereiner/audiomesh'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b9e41b7a5c49e83e157f2513b82b0f9532349f6a
[INFO] sha for GitHub repo lucdoebereiner/audiomesh: b9e41b7a5c49e83e157f2513b82b0f9532349f6a
[INFO] validating manifest of lucdoebereiner/audiomesh on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lucdoebereiner/audiomesh on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lucdoebereiner/audiomesh
[INFO] finished frobbing lucdoebereiner/audiomesh
[INFO] frobbed toml for lucdoebereiner/audiomesh written to work/ex/beta-1.37-6/sources/1.36.0/gh/lucdoebereiner/audiomesh/Cargo.toml
[INFO] started frobbing lucdoebereiner/audiomesh
[INFO] finished frobbing lucdoebereiner/audiomesh
[INFO] frobbed toml for lucdoebereiner/audiomesh written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lucdoebereiner/audiomesh/Cargo.toml
[INFO] crate lucdoebereiner/audiomesh already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing lucdoebereiner/audiomesh against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/lucdoebereiner/audiomesh:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 488ab9e0e4157f9c2bf53320a5efc675009032a8f9ff6d20a218bc8ccfc6d450
[INFO] running `"docker" "start" "-a" "488ab9e0e4157f9c2bf53320a5efc675009032a8f9ff6d20a218bc8ccfc6d450"`
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling jack-sys v0.2.0
[INFO] [stderr]    Compiling jack v0.6.0
[INFO] [stderr]    Compiling audiomesh v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `Fold`
[INFO] [stderr]    --> src/main.rs:123:1
[INFO] [stderr]     |
[INFO] [stderr] 123 | struct Fold {
[INFO] [stderr]     | ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `FoldMul`
[INFO] [stderr]    --> src/main.rs:129:1
[INFO] [stderr]     |
[INFO] [stderr] 129 | struct FoldMul;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `FoldAdd`
[INFO] [stderr]    --> src/main.rs:130:1
[INFO] [stderr]     |
[INFO] [stderr] 130 | struct FoldAdd;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^
[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/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/audiomesh-554fb6e472d0a86c.audiomesh.3re8613d-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/audiomesh-554fb6e472d0a86c.audiomesh.3re8613d-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/audiomesh-554fb6e472d0a86c.audiomesh.3re8613d-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/audiomesh-554fb6e472d0a86c.audiomesh.3re8613d-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/audiomesh-554fb6e472d0a86c.audiomesh.3re8613d-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/audiomesh-554fb6e472d0a86c.audiomesh.3re8613d-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/audiomesh-554fb6e472d0a86c.audiomesh.3re8613d-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/audiomesh-554fb6e472d0a86c.audiomesh.3re8613d-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/audiomesh-554fb6e472d0a86c.audiomesh.3re8613d-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/audiomesh-554fb6e472d0a86c.audiomesh.3re8613d-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/audiomesh-554fb6e472d0a86c.audiomesh.3re8613d-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/audiomesh-554fb6e472d0a86c.audiomesh.3re8613d-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/audiomesh-554fb6e472d0a86c.audiomesh.3re8613d-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/audiomesh-554fb6e472d0a86c.audiomesh.3re8613d-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/audiomesh-554fb6e472d0a86c.audiomesh.3re8613d-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/audiomesh-554fb6e472d0a86c.audiomesh.3re8613d-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/audiomesh-554fb6e472d0a86c" "/opt/crater/target/debug/deps/audiomesh-554fb6e472d0a86c.21zvvrbuw4g0otmy.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/librand-1857c2c7fca6008b.rlib" "/opt/crater/target/debug/deps/librand_core-fc463b8744650343.rlib" "/opt/crater/target/debug/deps/libjack-1f507b797cbf3f78.rlib" "/opt/crater/target/debug/deps/libjack_sys-724e0ee22dc03373.rlib" "/opt/crater/target/debug/deps/liblibloading-2dee65ebc5b679fd.rlib" "/opt/crater/target/debug/deps/liblazy_static-0098df0396dd5034.rlib" "/opt/crater/target/debug/deps/liblibc-2bc51604af9dbea7.rlib" "/opt/crater/target/debug/deps/libbitflags-4f5a5af30acbcb25.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-9895e8982b0a79e7.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-57306b8ed3378a0e.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-54463ae5adae3649.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-d99667b199a9875a.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-51f4300e102199f5.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-b3ccf1f7737a6a91.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-157c37a3ceb78853.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-505bcee45aafb736.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-c29abd529ba4452b.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-895383a3232f6572.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-5594cb4f559bc761.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-38e90baf978bc428.rlib" "-Wl,-Bdynamic" "-ljack" "-ldl" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: cannot find -ljack
[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 `audiomesh`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "488ab9e0e4157f9c2bf53320a5efc675009032a8f9ff6d20a218bc8ccfc6d450"`
[INFO] running `"docker" "rm" "-f" "488ab9e0e4157f9c2bf53320a5efc675009032a8f9ff6d20a218bc8ccfc6d450"`
[INFO] [stdout] 488ab9e0e4157f9c2bf53320a5efc675009032a8f9ff6d20a218bc8ccfc6d450