[INFO] updating cached repository wmedrano/synth
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/wmedrano/synth
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/wmedrano/synth" "work/ex/beta-1.38-1/sources/1.37.0/gh/wmedrano/synth"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/wmedrano/synth'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/wmedrano/synth" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wmedrano/synth"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wmedrano/synth'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7c4ca0dc31b96065b23099fccfe6d0e8b69a5d09
[INFO] sha for GitHub repo wmedrano/synth: 7c4ca0dc31b96065b23099fccfe6d0e8b69a5d09
[INFO] validating manifest of wmedrano/synth on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of wmedrano/synth on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing wmedrano/synth
[INFO] finished frobbing wmedrano/synth
[INFO] frobbed toml for wmedrano/synth written to work/ex/beta-1.38-1/sources/1.37.0/gh/wmedrano/synth/Cargo.toml
[INFO] started frobbing wmedrano/synth
[INFO] finished frobbing wmedrano/synth
[INFO] frobbed toml for wmedrano/synth written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wmedrano/synth/Cargo.toml
[INFO] crate wmedrano/synth already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing wmedrano/synth against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/wmedrano/synth:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 69e044df84a64901469c3793a8abe2d435c8d64ba3a83cc1a1a95fc31b9cc8c3
[INFO] running `"docker" "start" "-a" "69e044df84a64901469c3793a8abe2d435c8d64ba3a83cc1a1a95fc31b9cc8c3"`
[INFO] [stderr]    Compiling wmidi v0.1.2
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling bincode v1.0.1
[INFO] [stderr]    Compiling syn v0.15.13
[INFO] [stderr]    Compiling jack-sys v0.2.0
[INFO] [stderr]    Compiling jack v0.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling fmsynth v0.1.0 (/opt/crater/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/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/fmsynth-b325cc46d3e72e8b.fmsynth.bcsu4pqh-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-b325cc46d3e72e8b.fmsynth.bcsu4pqh-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-b325cc46d3e72e8b.fmsynth.bcsu4pqh-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-b325cc46d3e72e8b.fmsynth.bcsu4pqh-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-b325cc46d3e72e8b.fmsynth.bcsu4pqh-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-b325cc46d3e72e8b.fmsynth.bcsu4pqh-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-b325cc46d3e72e8b.fmsynth.bcsu4pqh-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-b325cc46d3e72e8b.fmsynth.bcsu4pqh-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-b325cc46d3e72e8b.fmsynth.bcsu4pqh-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-b325cc46d3e72e8b.fmsynth.bcsu4pqh-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-b325cc46d3e72e8b.fmsynth.bcsu4pqh-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-b325cc46d3e72e8b.fmsynth.bcsu4pqh-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-b325cc46d3e72e8b.fmsynth.bcsu4pqh-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-b325cc46d3e72e8b.fmsynth.bcsu4pqh-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-b325cc46d3e72e8b.fmsynth.bcsu4pqh-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-b325cc46d3e72e8b.fmsynth.bcsu4pqh-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/fmsynth-b325cc46d3e72e8b" "/opt/crater/target/debug/deps/fmsynth-b325cc46d3e72e8b.2mxq3t0cdaeojemn.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libwmidi-aadacca1c821464f.rlib" "/opt/crater/target/debug/deps/libjack-83e39d9ec7d81816.rlib" "/opt/crater/target/debug/deps/libjack_sys-909f3512b9017c5a.rlib" "/opt/crater/target/debug/deps/liblibloading-2959918e536bdee4.rlib" "/opt/crater/target/debug/deps/liblazy_static-a8fe5d1bd490d4d0.rlib" "/opt/crater/target/debug/deps/liblibc-96489a6b7aca76d0.rlib" "/opt/crater/target/debug/deps/libbitflags-031756039b29afaf.rlib" "/opt/crater/target/debug/deps/libbincode-57c4784f655b3b93.rlib" "/opt/crater/target/debug/deps/libserde-48b6392c1eca142a.rlib" "/opt/crater/target/debug/deps/libbyteorder-abed5cf036ed361b.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-4a76ff35a356aedf.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e11c7b3b3225afe2.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-13217ede3d276f16.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-621a9ee22da6caa1.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-546c844e8071bbeb.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-be9569e4d599746f.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-47d8845cef2a3bc5.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-017511bce73a530c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-be7979c57a08057b.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d6459c4f0817c67c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-580035dd98451925.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-aee5c24fff305dea.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8a55a4098920125a.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-9fc4b5be2ba5cc19.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 `fmsynth`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "69e044df84a64901469c3793a8abe2d435c8d64ba3a83cc1a1a95fc31b9cc8c3"`
[INFO] running `"docker" "rm" "-f" "69e044df84a64901469c3793a8abe2d435c8d64ba3a83cc1a1a95fc31b9cc8c3"`
[INFO] [stdout] 69e044df84a64901469c3793a8abe2d435c8d64ba3a83cc1a1a95fc31b9cc8c3