[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/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/wmedrano/synth"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/wmedrano/synth'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/wmedrano/synth" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/wmedrano/synth"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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 master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of wmedrano/synth on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "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/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/wmedrano/synth/Cargo.toml
[INFO] crate wmedrano/synth has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing wmedrano/synth against master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-5/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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=forbid" "-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" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "build" "--frozen"`
[INFO] [stdout] e8d3bd147112d6d5e5705da48d735ca3948b7bb84679f4c35e0962b222edc98f
[INFO] running `"docker" "start" "-a" "e8d3bd147112d6d5e5705da48d735ca3948b7bb84679f4c35e0962b222edc98f"`
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling wmidi v0.1.2
[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/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/fmsynth-cef5e078d0f9cbce.fmsynth.8ss85ofm-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-cef5e078d0f9cbce.fmsynth.8ss85ofm-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-cef5e078d0f9cbce.fmsynth.8ss85ofm-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-cef5e078d0f9cbce.fmsynth.8ss85ofm-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-cef5e078d0f9cbce.fmsynth.8ss85ofm-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-cef5e078d0f9cbce.fmsynth.8ss85ofm-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-cef5e078d0f9cbce.fmsynth.8ss85ofm-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-cef5e078d0f9cbce.fmsynth.8ss85ofm-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-cef5e078d0f9cbce.fmsynth.8ss85ofm-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-cef5e078d0f9cbce.fmsynth.8ss85ofm-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-cef5e078d0f9cbce.fmsynth.8ss85ofm-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-cef5e078d0f9cbce.fmsynth.8ss85ofm-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-cef5e078d0f9cbce.fmsynth.8ss85ofm-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-cef5e078d0f9cbce.fmsynth.8ss85ofm-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-cef5e078d0f9cbce.fmsynth.8ss85ofm-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/fmsynth-cef5e078d0f9cbce.fmsynth.8ss85ofm-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/fmsynth-cef5e078d0f9cbce" "/opt/crater/target/debug/deps/fmsynth-cef5e078d0f9cbce.21uqjg75gewrv97p.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libwmidi-31798a4bf0159566.rlib" "/opt/crater/target/debug/deps/libjack-cd1af64716725730.rlib" "/opt/crater/target/debug/deps/libjack_sys-f736a711a8a9952c.rlib" "/opt/crater/target/debug/deps/liblibloading-209a2451196a5c46.rlib" "/opt/crater/target/debug/deps/liblazy_static-d1782d47c9399120.rlib" "/opt/crater/target/debug/deps/liblibc-c1fe0c9022137ea2.rlib" "/opt/crater/target/debug/deps/libbitflags-ed58a05e59fdcb43.rlib" "/opt/crater/target/debug/deps/libbincode-aa208750ff03a8f9.rlib" "/opt/crater/target/debug/deps/libserde-5f9330bccfd65023.rlib" "/opt/crater/target/debug/deps/libbyteorder-1845fab9b71f6258.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-8469d768695d9748.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-786c0f406992159b.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-eda54ffd3e6402cc.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-3b59adbc83c396a4.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-1d2bb09f4dcbd4be.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-e96acda46b77a2fd.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-596074f575b1f832.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-57f280c1596673cd.rlib" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-16132b5b2ecf9ec1.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-37286a0a9c4289ff.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" "e8d3bd147112d6d5e5705da48d735ca3948b7bb84679f4c35e0962b222edc98f"`
[INFO] running `"docker" "rm" "-f" "e8d3bd147112d6d5e5705da48d735ca3948b7bb84679f4c35e0962b222edc98f"`
[INFO] [stdout] e8d3bd147112d6d5e5705da48d735ca3948b7bb84679f4c35e0962b222edc98f