[INFO] updating cached repository https://github.com/antonxy/violin_rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1815b63734c6b1576f8f9ff3a25efd95d3c831ed
[INFO] testing antonxy/violin_rust against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fantonxy%2Fviolin_rust" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/antonxy/violin_rust on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/antonxy/violin_rust
[INFO] finished tweaking git repo https://github.com/antonxy/violin_rust
[INFO] tweaked toml for git repo https://github.com/antonxy/violin_rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/antonxy/violin_rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 947d1356f6e931069d0d86a270714d4f8d5f97f77d64e02d11fdbee1ddea15a0
[INFO] running `"docker" "start" "-a" "947d1356f6e931069d0d86a270714d4f8d5f97f77d64e02d11fdbee1ddea15a0"`
[INFO] [stderr]    Compiling ioctl-rs v0.1.6
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling serial-core v0.4.0
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling serial-unix v0.4.0
[INFO] [stderr]    Compiling jack-sys v0.2.0
[INFO] [stderr]    Compiling jack v0.6.2
[INFO] [stderr]    Compiling crossbeam-channel v0.4.0
[INFO] [stderr]    Compiling serial v0.4.0
[INFO] [stderr]    Compiling jack_violin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]   --> src/main.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::env;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::io;
[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/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/jack_violin-fcca232461218f6b.jack_violin.3r78zk1r-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/jack_violin-fcca232461218f6b.jack_violin.3r78zk1r-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/jack_violin-fcca232461218f6b.jack_violin.3r78zk1r-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/jack_violin-fcca232461218f6b.jack_violin.3r78zk1r-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/jack_violin-fcca232461218f6b.jack_violin.3r78zk1r-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/jack_violin-fcca232461218f6b.jack_violin.3r78zk1r-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/jack_violin-fcca232461218f6b.jack_violin.3r78zk1r-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/jack_violin-fcca232461218f6b.jack_violin.3r78zk1r-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/jack_violin-fcca232461218f6b.jack_violin.3r78zk1r-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/jack_violin-fcca232461218f6b.jack_violin.3r78zk1r-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/jack_violin-fcca232461218f6b.jack_violin.3r78zk1r-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/jack_violin-fcca232461218f6b.jack_violin.3r78zk1r-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/jack_violin-fcca232461218f6b.jack_violin.3r78zk1r-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/jack_violin-fcca232461218f6b.jack_violin.3r78zk1r-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/jack_violin-fcca232461218f6b.jack_violin.3r78zk1r-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/jack_violin-fcca232461218f6b.jack_violin.3r78zk1r-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/jack_violin-fcca232461218f6b" "/opt/rustwide/target/debug/deps/jack_violin-fcca232461218f6b.2obuwsh3rvhe73b3.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libserial-bfc71f1ca02a6303.rlib" "/opt/rustwide/target/debug/deps/libserial_unix-51e9a15c11d071dd.rlib" "/opt/rustwide/target/debug/deps/libioctl_rs-f4f409a6d53eab03.rlib" "/opt/rustwide/target/debug/deps/libtermios-06c0b14fd43f4317.rlib" "/opt/rustwide/target/debug/deps/libserial_core-2964f43127ff0f64.rlib" "/opt/rustwide/target/debug/deps/libjack-71b821c160b716c7.rlib" "/opt/rustwide/target/debug/deps/libjack_sys-71e5002a1849ae99.rlib" "/opt/rustwide/target/debug/deps/liblibloading-71690e27db57d600.rlib" "/opt/rustwide/target/debug/deps/liblibc-2b3577f6a779d165.rlib" "/opt/rustwide/target/debug/deps/libbitflags-c5180c3dc5cc8193.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_channel-eae83ae04f5fd92e.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-f33130f66302ba30.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-81e71b56f2a8a8f3.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-7bfa6ddb9b2ff1d3.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1dac1a412c98f50d.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-b7841fd014bf83a1.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-338c0763450dca22.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-5f2e5d11836e0967.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-81a9070bd3553adf.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-e297830377b95af4.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-b38b87f2dd197fa0.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-601015f2e15e7e26.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-439f3a589bd88586.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-57ab7e6ac23ce11f.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-3aec7f88778e912a.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-b6806800b307d4b9.rlib" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-e49d7651b12f7563.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/28742a1146f10a4f09369baad027a464acb7a766/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-e8266574e26adcc3.rlib" "-Wl,-Bdynamic" "-lc" "-ljack" "-ldl" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-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; 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `jack_violin`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "947d1356f6e931069d0d86a270714d4f8d5f97f77d64e02d11fdbee1ddea15a0"`
[INFO] running `"docker" "rm" "-f" "947d1356f6e931069d0d86a270714d4f8d5f97f77d64e02d11fdbee1ddea15a0"`
[INFO] [stdout] 947d1356f6e931069d0d86a270714d4f8d5f97f77d64e02d11fdbee1ddea15a0