[INFO] updating cached repository https://github.com/ernestrc/rux
[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] 7ad3feb3de7fec8889a04560de04c5ab42016dd0
[INFO] testing ernestrc/rux against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fernestrc%2Frux" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ernestrc/rux on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ernestrc/rux
[INFO] finished tweaking git repo https://github.com/ernestrc/rux
[INFO] tweaked toml for git repo https://github.com/ernestrc/rux written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/ernestrc/rux already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "+beta-2020-06-03" "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] a8b39e797d9a8576c002e601fe37d7776685f047e965a75a0e5da8216173356a
[INFO] running `"docker" "start" "-a" "a8b39e797d9a8576c002e601fe37d7776685f047e965a75a0e5da8216173356a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling gcc v0.3.40
[INFO] [stderr]    Compiling unicode-width v0.1.3
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling pad v0.1.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.5
[INFO] [stderr]    Compiling backtrace v0.3.0
[INFO] [stderr]    Compiling error-chain v0.7.1
[INFO] [stderr]    Compiling rux v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / error_chain! {
[INFO] [stderr] 5  | |     types {
[INFO] [stderr] 6  | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 7  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 24 | |     }
[INFO] [stderr] 25 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / error_chain! {
[INFO] [stderr] 5  | |     types {
[INFO] [stderr] 6  | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 7  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 24 | |     }
[INFO] [stderr] 25 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[inline]` is ignored on function prototypes
[INFO] [stderr]   --> src/epoll/mod.rs:46:3
[INFO] [stderr]    |
[INFO] [stderr] 46 |   #[inline]
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/epoll/mod.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | / lazy_static! {
[INFO] [stderr] 13 | |     static ref NO_INTEREST: EpollEvent = {
[INFO] [stderr] 14 | |         EpollEvent {
[INFO] [stderr] 15 | |             events: EpollEventKind::empty(),
[INFO] [stderr] ...  |
[INFO] [stderr] 18 | |     };
[INFO] [stderr] 19 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/epoll/mod.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | / lazy_static! {
[INFO] [stderr] 13 | |     static ref NO_INTEREST: EpollEvent = {
[INFO] [stderr] 14 | |         EpollEvent {
[INFO] [stderr] 15 | |             events: EpollEventKind::empty(),
[INFO] [stderr] ...  |
[INFO] [stderr] 18 | |     };
[INFO] [stderr] 19 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / error_chain! {
[INFO] [stderr] 5  | |     types {
[INFO] [stderr] 6  | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 7  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 24 | |     }
[INFO] [stderr] 25 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.21s
[INFO] running `"docker" "inspect" "a8b39e797d9a8576c002e601fe37d7776685f047e965a75a0e5da8216173356a"`
[INFO] running `"docker" "rm" "-f" "a8b39e797d9a8576c002e601fe37d7776685f047e965a75a0e5da8216173356a"`
[INFO] [stdout] a8b39e797d9a8576c002e601fe37d7776685f047e965a75a0e5da8216173356a
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8c2be16811da90f85369286462f9f9c06eba69654dd407ccdb781d21da39bf9a
[INFO] running `"docker" "start" "-a" "8c2be16811da90f85369286462f9f9c06eba69654dd407ccdb781d21da39bf9a"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rux v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / error_chain! {
[INFO] [stderr] 5  | |     types {
[INFO] [stderr] 6  | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 7  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 24 | |     }
[INFO] [stderr] 25 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / error_chain! {
[INFO] [stderr] 5  | |     types {
[INFO] [stderr] 6  | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 7  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 24 | |     }
[INFO] [stderr] 25 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[inline]` is ignored on function prototypes
[INFO] [stderr]   --> src/epoll/mod.rs:46:3
[INFO] [stderr]    |
[INFO] [stderr] 46 |   #[inline]
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/epoll/mod.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | / lazy_static! {
[INFO] [stderr] 13 | |     static ref NO_INTEREST: EpollEvent = {
[INFO] [stderr] 14 | |         EpollEvent {
[INFO] [stderr] 15 | |             events: EpollEventKind::empty(),
[INFO] [stderr] ...  |
[INFO] [stderr] 18 | |     };
[INFO] [stderr] 19 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/epoll/mod.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | / lazy_static! {
[INFO] [stderr] 13 | |     static ref NO_INTEREST: EpollEvent = {
[INFO] [stderr] 14 | |         EpollEvent {
[INFO] [stderr] 15 | |             events: EpollEventKind::empty(),
[INFO] [stderr] ...  |
[INFO] [stderr] 18 | |     };
[INFO] [stderr] 19 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / error_chain! {
[INFO] [stderr] 5  | |     types {
[INFO] [stderr] 6  | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 7  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 24 | |     }
[INFO] [stderr] 25 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/mux/handler.rs:150:7
[INFO] [stderr]     |
[INFO] [stderr] 150 |   use super::*;
[INFO] [stderr]     |       ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / error_chain! {
[INFO] [stderr] 5  | |     types {
[INFO] [stderr] 6  | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 7  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 24 | |     }
[INFO] [stderr] 25 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/error.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / error_chain! {
[INFO] [stderr] 5  | |     types {
[INFO] [stderr] 6  | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 7  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 24 | |     }
[INFO] [stderr] 25 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[inline]` is ignored on function prototypes
[INFO] [stderr]   --> src/epoll/mod.rs:46:3
[INFO] [stderr]    |
[INFO] [stderr] 46 |   #[inline]
[INFO] [stderr]    |   ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/epoll/mod.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | / lazy_static! {
[INFO] [stderr] 13 | |     static ref NO_INTEREST: EpollEvent = {
[INFO] [stderr] 14 | |         EpollEvent {
[INFO] [stderr] 15 | |             events: EpollEventKind::empty(),
[INFO] [stderr] ...  |
[INFO] [stderr] 18 | |     };
[INFO] [stderr] 19 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/epoll/mod.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | / lazy_static! {
[INFO] [stderr] 13 | |     static ref NO_INTEREST: EpollEvent = {
[INFO] [stderr] 14 | |         EpollEvent {
[INFO] [stderr] 15 | |             events: EpollEventKind::empty(),
[INFO] [stderr] ...  |
[INFO] [stderr] 18 | |     };
[INFO] [stderr] 19 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[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/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/examples/buf-55604176fc47ffe9.buf.3n49norm-cgu.0.rcgu.o" "/opt/rustwide/target/debug/examples/buf-55604176fc47ffe9.buf.3n49norm-cgu.1.rcgu.o" "/opt/rustwide/target/debug/examples/buf-55604176fc47ffe9.buf.3n49norm-cgu.2.rcgu.o" "/opt/rustwide/target/debug/examples/buf-55604176fc47ffe9.buf.3n49norm-cgu.3.rcgu.o" "/opt/rustwide/target/debug/examples/buf-55604176fc47ffe9.buf.3n49norm-cgu.4.rcgu.o" "/opt/rustwide/target/debug/examples/buf-55604176fc47ffe9.buf.3n49norm-cgu.5.rcgu.o" "/opt/rustwide/target/debug/examples/buf-55604176fc47ffe9.buf.3n49norm-cgu.6.rcgu.o" "/opt/rustwide/target/debug/examples/buf-55604176fc47ffe9.buf.3n49norm-cgu.7.rcgu.o" "/opt/rustwide/target/debug/examples/buf-55604176fc47ffe9.buf.3n49norm-cgu.8.rcgu.o" "-o" "/opt/rustwide/target/debug/examples/buf-55604176fc47ffe9" "/opt/rustwide/target/debug/examples/buf-55604176fc47ffe9.1jwwtdyiflja29cp.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/librux-3787ccd86ba08288.rlib" "/opt/rustwide/target/debug/deps/liblog-e3baa2820092b681.rlib" "/opt/rustwide/target/debug/deps/liberror_chain-c9f2af931ba6de84.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-6e387a282720b0db.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-b9779349947a9606.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-637630847693b450.rlib" "/opt/rustwide/target/debug/deps/libdbghelp-6fc59348d4f477c3.rlib" "/opt/rustwide/target/debug/deps/libwinapi-0038aeeed11d463c.rlib" "/opt/rustwide/target/debug/deps/libkernel32-c8bbbe70f11db917.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-384dcc042ab28d9c.rlib" "/opt/rustwide/target/debug/deps/libtime-d3c0d86e14341b92.rlib" "/opt/rustwide/target/debug/deps/libpad-1a83981369b1b543.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-e461ebfc308ba5a2.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-d1fe59e21c6b7284.rlib" "/opt/rustwide/target/debug/deps/libslab-ed4e4c28f29c8b36.rlib" "/opt/rustwide/target/debug/deps/libnix-d51ee4d27735084b.rlib" "/opt/rustwide/target/debug/deps/liblibc-36d6ae812c872b7d.rlib" "/opt/rustwide/target/debug/deps/libvoid-54fa5ba7557385ce.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-4ce6be6b55674710.rlib" "/opt/rustwide/target/debug/deps/libbitflags-540c32a9e4e80bc8.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-44f8eb3d0b2fad61.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-abc626f09920d361.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-546e83c8973f1a65.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-12768dfc68674934.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-e06867e4497f2ee8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-cbc579f43f6df57b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-7abd6d5a7ebf9a23.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-46423c7bc03bd327.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-fc3773ed7bc68f07.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-9cdc98176efd27e2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-02d88502a763e06b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-8cdc9d38dd6cd3ce.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-336f7d63e72901ef.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-57917b1be5233117.rlib" "-Wl,-Bdynamic" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/libbacktrace-6e387a282720b0db.rlib(backtrace-6e387a282720b0db.backtrace.3pfqf4g7-cgu.13.rcgu.o): in function `backtrace::symbolize::libbacktrace::init_state::{{closure}}':
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:156: undefined reference to `backtrace_create_state'
[INFO] [stderr]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libbacktrace-6e387a282720b0db.rlib(backtrace-6e387a282720b0db.backtrace.3pfqf4g7-cgu.13.rcgu.o): in function `backtrace::symbolize::libbacktrace::resolve':
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:173: undefined reference to `backtrace_pcinfo'
[INFO] [stderr]           /usr/bin/ld: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:177: undefined reference to `backtrace_syminfo'
[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 `rux`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/error.rs:4:1
[INFO] [stderr]    |
[INFO] [stderr] 4  | / error_chain! {
[INFO] [stderr] 5  | |     types {
[INFO] [stderr] 6  | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stderr] 7  | |     }
[INFO] [stderr] ...  |
[INFO] [stderr] 24 | |     }
[INFO] [stderr] 25 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buffer`
[INFO] [stderr]    --> src/buf/tests.rs:268:18
[INFO] [stderr]     |
[INFO] [stderr] 268 |   fn from_buffer(buffer: &mut ByteBuffer) -> Result<Option<MyType>> {
[INFO] [stderr]     |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/epoll/mod.rs:215:13
[INFO] [stderr]     |
[INFO] [stderr] 215 |     assert!(ev.events.contains(EPOLLIN));
[INFO] [stderr]     |             ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(safe_packed_borrows)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[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/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/rux-1fdcb909f24ba70b.rux.auckh2uo-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/rux-1fdcb909f24ba70b.rux.auckh2uo-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/rux-1fdcb909f24ba70b.rux.auckh2uo-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/rux-1fdcb909f24ba70b.rux.auckh2uo-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/rux-1fdcb909f24ba70b.rux.auckh2uo-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/rux-1fdcb909f24ba70b.rux.auckh2uo-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/rux-1fdcb909f24ba70b.rux.auckh2uo-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/rux-1fdcb909f24ba70b.rux.auckh2uo-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/rux-1fdcb909f24ba70b.rux.auckh2uo-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/rux-1fdcb909f24ba70b.rux.auckh2uo-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/rux-1fdcb909f24ba70b.rux.auckh2uo-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/rux-1fdcb909f24ba70b.rux.auckh2uo-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/rux-1fdcb909f24ba70b.rux.auckh2uo-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/rux-1fdcb909f24ba70b.rux.auckh2uo-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/rux-1fdcb909f24ba70b.rux.auckh2uo-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/rux-1fdcb909f24ba70b.rux.auckh2uo-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/rux-1fdcb909f24ba70b" "/opt/rustwide/target/debug/deps/rux-1fdcb909f24ba70b.3iqkh2hsz57etw4v.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest-0a07979da1fa7aa2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libterm-171ede43b21d034c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts-ea69ac8b5a0936d1.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width-6be6d4d5d08eb152.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_std-c718480fe68c7cec.rlib" "/opt/rustwide/target/debug/deps/liblog-e3baa2820092b681.rlib" "/opt/rustwide/target/debug/deps/liberror_chain-c9f2af931ba6de84.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-6e387a282720b0db.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-b9779349947a9606.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-637630847693b450.rlib" "/opt/rustwide/target/debug/deps/libdbghelp-6fc59348d4f477c3.rlib" "/opt/rustwide/target/debug/deps/libwinapi-0038aeeed11d463c.rlib" "/opt/rustwide/target/debug/deps/libkernel32-c8bbbe70f11db917.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-384dcc042ab28d9c.rlib" "/opt/rustwide/target/debug/deps/libtime-d3c0d86e14341b92.rlib" "/opt/rustwide/target/debug/deps/libpad-1a83981369b1b543.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-e461ebfc308ba5a2.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-d1fe59e21c6b7284.rlib" "/opt/rustwide/target/debug/deps/libslab-ed4e4c28f29c8b36.rlib" "/opt/rustwide/target/debug/deps/libnix-d51ee4d27735084b.rlib" "/opt/rustwide/target/debug/deps/liblibc-36d6ae812c872b7d.rlib" "/opt/rustwide/target/debug/deps/libvoid-54fa5ba7557385ce.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-4ce6be6b55674710.rlib" "/opt/rustwide/target/debug/deps/libbitflags-540c32a9e4e80bc8.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-44f8eb3d0b2fad61.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-abc626f09920d361.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-546e83c8973f1a65.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-12768dfc68674934.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-e06867e4497f2ee8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-cbc579f43f6df57b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-7abd6d5a7ebf9a23.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-46423c7bc03bd327.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-fc3773ed7bc68f07.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-9cdc98176efd27e2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-02d88502a763e06b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-8cdc9d38dd6cd3ce.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-336f7d63e72901ef.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-57917b1be5233117.rlib" "-Wl,-Bdynamic" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/libbacktrace-6e387a282720b0db.rlib(backtrace-6e387a282720b0db.backtrace.3pfqf4g7-cgu.13.rcgu.o): in function `backtrace::symbolize::libbacktrace::init_state::{{closure}}':
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:156: undefined reference to `backtrace_create_state'
[INFO] [stderr]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libbacktrace-6e387a282720b0db.rlib(backtrace-6e387a282720b0db.backtrace.3pfqf4g7-cgu.13.rcgu.o): in function `backtrace::symbolize::libbacktrace::resolve':
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:173: undefined reference to `backtrace_pcinfo'
[INFO] [stderr]           /usr/bin/ld: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:177: undefined reference to `backtrace_syminfo'
[INFO] [stderr]           collect2: error: ld returned 1 exit status
[INFO] [stderr]           
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 9 warnings emitted
[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/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/examples/echo-fbb84cfdeb729253.echo.brcl97uq-cgu.0.rcgu.o" "/opt/rustwide/target/debug/examples/echo-fbb84cfdeb729253.echo.brcl97uq-cgu.1.rcgu.o" "/opt/rustwide/target/debug/examples/echo-fbb84cfdeb729253.echo.brcl97uq-cgu.10.rcgu.o" "/opt/rustwide/target/debug/examples/echo-fbb84cfdeb729253.echo.brcl97uq-cgu.11.rcgu.o" "/opt/rustwide/target/debug/examples/echo-fbb84cfdeb729253.echo.brcl97uq-cgu.12.rcgu.o" "/opt/rustwide/target/debug/examples/echo-fbb84cfdeb729253.echo.brcl97uq-cgu.13.rcgu.o" "/opt/rustwide/target/debug/examples/echo-fbb84cfdeb729253.echo.brcl97uq-cgu.14.rcgu.o" "/opt/rustwide/target/debug/examples/echo-fbb84cfdeb729253.echo.brcl97uq-cgu.15.rcgu.o" "/opt/rustwide/target/debug/examples/echo-fbb84cfdeb729253.echo.brcl97uq-cgu.2.rcgu.o" "/opt/rustwide/target/debug/examples/echo-fbb84cfdeb729253.echo.brcl97uq-cgu.3.rcgu.o" "/opt/rustwide/target/debug/examples/echo-fbb84cfdeb729253.echo.brcl97uq-cgu.4.rcgu.o" "/opt/rustwide/target/debug/examples/echo-fbb84cfdeb729253.echo.brcl97uq-cgu.5.rcgu.o" "/opt/rustwide/target/debug/examples/echo-fbb84cfdeb729253.echo.brcl97uq-cgu.6.rcgu.o" "/opt/rustwide/target/debug/examples/echo-fbb84cfdeb729253.echo.brcl97uq-cgu.7.rcgu.o" "/opt/rustwide/target/debug/examples/echo-fbb84cfdeb729253.echo.brcl97uq-cgu.8.rcgu.o" "/opt/rustwide/target/debug/examples/echo-fbb84cfdeb729253.echo.brcl97uq-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/examples/echo-fbb84cfdeb729253" "/opt/rustwide/target/debug/examples/echo-fbb84cfdeb729253.2ywhh8j6oufgn45.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libenv_logger-0d48c7a23500a771.rlib" "/opt/rustwide/target/debug/deps/libregex-5334f9f6ad4d73fa.rlib" "/opt/rustwide/target/debug/deps/libutf8_ranges-e6b266851bb808e0.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-c1cad171dbacb223.rlib" "/opt/rustwide/target/debug/deps/libthread_local-aeb6de28d32fc3ac.rlib" "/opt/rustwide/target/debug/deps/libthread_id-16d30e7f23739c30.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-c6903e968d399834.rlib" "/opt/rustwide/target/debug/deps/libmemchr-cfbc2eb8bcb9bd97.rlib" "/opt/rustwide/target/debug/deps/librux-3787ccd86ba08288.rlib" "/opt/rustwide/target/debug/deps/liberror_chain-c9f2af931ba6de84.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-6e387a282720b0db.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-b9779349947a9606.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-637630847693b450.rlib" "/opt/rustwide/target/debug/deps/libdbghelp-6fc59348d4f477c3.rlib" "/opt/rustwide/target/debug/deps/libwinapi-0038aeeed11d463c.rlib" "/opt/rustwide/target/debug/deps/libkernel32-c8bbbe70f11db917.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-384dcc042ab28d9c.rlib" "/opt/rustwide/target/debug/deps/libtime-d3c0d86e14341b92.rlib" "/opt/rustwide/target/debug/deps/libpad-1a83981369b1b543.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-e461ebfc308ba5a2.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-d1fe59e21c6b7284.rlib" "/opt/rustwide/target/debug/deps/libslab-ed4e4c28f29c8b36.rlib" "/opt/rustwide/target/debug/deps/libnix-d51ee4d27735084b.rlib" "/opt/rustwide/target/debug/deps/liblibc-36d6ae812c872b7d.rlib" "/opt/rustwide/target/debug/deps/libvoid-54fa5ba7557385ce.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-4ce6be6b55674710.rlib" "/opt/rustwide/target/debug/deps/libbitflags-540c32a9e4e80bc8.rlib" "/opt/rustwide/target/debug/deps/liblog-e3baa2820092b681.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-44f8eb3d0b2fad61.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-abc626f09920d361.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-546e83c8973f1a65.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-12768dfc68674934.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-e06867e4497f2ee8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-cbc579f43f6df57b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-7abd6d5a7ebf9a23.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-46423c7bc03bd327.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-fc3773ed7bc68f07.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-9cdc98176efd27e2.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-02d88502a763e06b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-8cdc9d38dd6cd3ce.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-336f7d63e72901ef.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-06-03-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-57917b1be5233117.rlib" "-Wl,-Bdynamic" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stderr]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/libbacktrace-6e387a282720b0db.rlib(backtrace-6e387a282720b0db.backtrace.3pfqf4g7-cgu.13.rcgu.o): in function `backtrace::symbolize::libbacktrace::init_state::{{closure}}':
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:156: undefined reference to `backtrace_create_state'
[INFO] [stderr]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libbacktrace-6e387a282720b0db.rlib(backtrace-6e387a282720b0db.backtrace.3pfqf4g7-cgu.13.rcgu.o): in function `backtrace::symbolize::libbacktrace::resolve':
[INFO] [stderr]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:173: undefined reference to `backtrace_pcinfo'
[INFO] [stderr]           /usr/bin/ld: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.0/src/symbolize/libbacktrace.rs:177: undefined reference to `backtrace_syminfo'
[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: build failed
[INFO] running `"docker" "inspect" "8c2be16811da90f85369286462f9f9c06eba69654dd407ccdb781d21da39bf9a"`
[INFO] running `"docker" "rm" "-f" "8c2be16811da90f85369286462f9f9c06eba69654dd407ccdb781d21da39bf9a"`
[INFO] [stdout] 8c2be16811da90f85369286462f9f9c06eba69654dd407ccdb781d21da39bf9a