[INFO] cloning repository https://github.com/Javyre/jcon
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Javyre/jcon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJavyre%2Fjcon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJavyre%2Fjcon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cdb941ee6b8fc4f648827a7918bea3e066391d5c
[INFO] testing Javyre/jcon against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJavyre%2Fjcon" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Javyre/jcon 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 git repo https://github.com/Javyre/jcon
[INFO] finished tweaking git repo https://github.com/Javyre/jcon
[INFO] tweaked toml for git repo https://github.com/Javyre/jcon written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Javyre/jcon already has a lockfile, it will not be regenerated
[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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 5794830509bb7af96d312ed69110eea982bcadad80f98812411a3bc43083dddd
[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" "5794830509bb7af96d312ed69110eea982bcadad80f98812411a3bc43083dddd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5794830509bb7af96d312ed69110eea982bcadad80f98812411a3bc43083dddd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5794830509bb7af96d312ed69110eea982bcadad80f98812411a3bc43083dddd", kill_on_drop: false }`
[INFO] [stdout] 5794830509bb7af96d312ed69110eea982bcadad80f98812411a3bc43083dddd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 4b7d0cc1437d4f7a9d68f120c7845cd5c34bfb2e32f584ad18fcdd1551c27f43
[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" "4b7d0cc1437d4f7a9d68f120c7845cd5c34bfb2e32f584ad18fcdd1551c27f43", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling regex v1.1.6
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.6.6
[INFO] [stderr]    Compiling aho-corasick v0.7.3
[INFO] [stderr]    Compiling jack-sys v0.2.0
[INFO] [stderr]    Compiling jack v0.6.0
[INFO] [stderr]    Compiling jcon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `pa`
[INFO] [stdout]    --> src/main.rs:405:33
[INFO] [stdout]     |
[INFO] [stdout] 405 |             UserCommand::Toggle(pa, pb) => unimplemented!(),
[INFO] [stdout]     |                                 ^^ help: if this is intentional, prefix it with an underscore: `_pa`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pb`
[INFO] [stdout]    --> src/main.rs:405:37
[INFO] [stdout]     |
[INFO] [stdout] 405 |             UserCommand::Toggle(pa, pb) => unimplemented!(),
[INFO] [stdout]     |                                     ^^ help: if this is intentional, prefix it with an underscore: `_pb`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Connect`
[INFO] [stdout]    --> src/main.rs:100:5
[INFO] [stdout]     |
[INFO] [stdout] 100 |     Connect(ORegex, IRegex),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Disconnect`
[INFO] [stdout]    --> src/main.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 |     Disconnect(ORegex, IRegex),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Toggle`
[INFO] [stdout]    --> src/main.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |     Toggle(ORegex, IRegex),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EnsureConnected`
[INFO] [stdout]    --> src/main.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     EnsureConnected(PRegex, PRegex),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `EnsureDisConnected`
[INFO] [stdout]    --> src/main.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 108 |     EnsureDisConnected(PRegex, PRegex),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `UserCommand`
[INFO] [stdout]    --> src/main.rs:121:5
[INFO] [stdout]     |
[INFO] [stdout] 121 |     UserCommand(UserCommand, Sender<Result<()>>),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Command`
[INFO] [stdout]    --> src/main.rs:122:5
[INFO] [stdout]     |
[INFO] [stdout] 122 |     Command(Command),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Finish`
[INFO] [stdout]    --> src/main.rs:127:26
[INFO] [stdout]     |
[INFO] [stdout] 127 | enum Control { Continue, Finish }
[INFO] [stdout]     |                          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inner`
[INFO] [stdout]    --> src/main.rs:168:22
[INFO] [stdout]     |
[INFO] [stdout] 168 | impl IRegex { pub fn inner(&self) -> &Regex  { &(self.0).0 } }
[INFO] [stdout]     |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inner`
[INFO] [stdout]    --> src/main.rs:169:22
[INFO] [stdout]     |
[INFO] [stdout] 169 | impl ORegex { pub fn inner(&self) -> &Regex  { &(self.0).0 } }
[INFO] [stdout]     |                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_with_in`
[INFO] [stdout]    --> src/main.rs:198:12
[INFO] [stdout]     |
[INFO] [stdout] 198 |     pub fn find_with_in(&self, n: &IName) -> Vec<ORegex> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/jcon-d1df8e5f0de17a4a.jcon.1cn5znb8-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/jcon-d1df8e5f0de17a4a.jcon.1cn5znb8-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/jcon-d1df8e5f0de17a4a.jcon.1cn5znb8-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/jcon-d1df8e5f0de17a4a.jcon.1cn5znb8-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/jcon-d1df8e5f0de17a4a.jcon.1cn5znb8-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/jcon-d1df8e5f0de17a4a.jcon.1cn5znb8-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/jcon-d1df8e5f0de17a4a.jcon.1cn5znb8-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/jcon-d1df8e5f0de17a4a.jcon.1cn5znb8-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/jcon-d1df8e5f0de17a4a.jcon.1cn5znb8-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/jcon-d1df8e5f0de17a4a.jcon.1cn5znb8-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/jcon-d1df8e5f0de17a4a.jcon.1cn5znb8-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/jcon-d1df8e5f0de17a4a.jcon.1cn5znb8-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/jcon-d1df8e5f0de17a4a.jcon.1cn5znb8-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/jcon-d1df8e5f0de17a4a.jcon.1cn5znb8-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/jcon-d1df8e5f0de17a4a.jcon.1cn5znb8-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/jcon-d1df8e5f0de17a4a.jcon.1cn5znb8-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/jcon-d1df8e5f0de17a4a" "/opt/rustwide/target/debug/deps/jcon-d1df8e5f0de17a4a.46ywqidyr13ss1eu.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libregex-7ae09bca2fe53be9.rlib" "/opt/rustwide/target/debug/deps/libutf8_ranges-61b5cbc5e318c573.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-cd917e1ca2884af2.rlib" "/opt/rustwide/target/debug/deps/libucd_util-3985737e673acae8.rlib" "/opt/rustwide/target/debug/deps/libthread_local-65b1cc9241408438.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-2d7e23ff65719491.rlib" "/opt/rustwide/target/debug/deps/libmemchr-9897b9d4c9d82e17.rlib" "/opt/rustwide/target/debug/deps/libjack-fa8ac4c88b4dc5ee.rlib" "/opt/rustwide/target/debug/deps/libjack_sys-2401902b79879bc9.rlib" "/opt/rustwide/target/debug/deps/liblibloading-0e38e079594762e3.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-4ccbe9d570ae61ca.rlib" "/opt/rustwide/target/debug/deps/liblibc-4b6577e243d0c612.rlib" "/opt/rustwide/target/debug/deps/libbitflags-5c7d271dfd8fcb55.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-e12de7683a34c500.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-446a53c2e468675f.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-86fef9fb252a2d33.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-3bed9bfd30304751.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-0e38eeb474a7b386.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-a846ed547b824740.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-c9540f0a4fb9265d.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-7d2ca66c92c356eb.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-147e2c808f949493.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-bd2a4369506670e9.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-74bfdd0ce7d0ed48.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-6777f47f1c491841.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-b104f1790174f2be.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-db37898996f45c13.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-25b7435131fc4938.rlib" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-9d4b6f3c097e876e.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.49.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-3f953ad652ab829a.rlib" "-Wl,-Bdynamic" "-ljack" "-ldl" "-lutil" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -ljack
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jcon`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "4b7d0cc1437d4f7a9d68f120c7845cd5c34bfb2e32f584ad18fcdd1551c27f43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b7d0cc1437d4f7a9d68f120c7845cd5c34bfb2e32f584ad18fcdd1551c27f43", kill_on_drop: false }`
[INFO] [stdout] 4b7d0cc1437d4f7a9d68f120c7845cd5c34bfb2e32f584ad18fcdd1551c27f43