[INFO] cloning repository https://github.com/Brendonovich/swift-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Brendonovich/swift-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrendonovich%2Fswift-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrendonovich%2Fswift-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 01980f981bc642a6da382cc0788f18fdd4cde6df
[INFO] testing Brendonovich/swift-rs against try#9f93af291970322f4f1c6315ccde4d7078201159 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBrendonovich%2Fswift-rs" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Brendonovich/swift-rs
[INFO] finished tweaking git repo https://github.com/Brendonovich/swift-rs
[INFO] tweaked toml for git repo https://github.com/Brendonovich/swift-rs written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Brendonovich/swift-rs on toolchain 9f93af291970322f4f1c6315ccde4d7078201159
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 41 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.21.7 (available: v0.22.1)
[INFO] [stderr]       Adding serial_test v0.10.0 (available: v3.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e46f3fd22a8c5ce30bedaf16d660551d540fbea74c29622bae38d2b0dc0de9c2
[INFO] running `Command { std: "docker" "start" "-a" "e46f3fd22a8c5ce30bedaf16d660551d540fbea74c29622bae38d2b0dc0de9c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e46f3fd22a8c5ce30bedaf16d660551d540fbea74c29622bae38d2b0dc0de9c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e46f3fd22a8c5ce30bedaf16d660551d540fbea74c29622bae38d2b0dc0de9c2", kill_on_drop: false }`
[INFO] [stdout] e46f3fd22a8c5ce30bedaf16d660551d540fbea74c29622bae38d2b0dc0de9c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a74b4a70036bafefc2d927d40bb4ae3e652954d71aadc8575c3d8f5a07116f2e
[INFO] running `Command { std: "docker" "start" "-a" "a74b4a70036bafefc2d927d40bb4ae3e652954d71aadc8575c3d8f5a07116f2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling syn v2.0.109
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling swift-rs v1.0.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `autorelease::*`
[INFO] [stdout]   --> src-rs/lib.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use autorelease::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src-rs/swift.rs:34:25
[INFO] [stdout]    |
[INFO] [stdout] 34 |     unsafe fn swift_ref(&self) -> SwiftRef<Self>
[INFO] [stdout]    |                         ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 34 |     unsafe fn swift_ref(&self) -> SwiftRef<'_, Self>
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.66s
[INFO] running `Command { std: "docker" "inspect" "a74b4a70036bafefc2d927d40bb4ae3e652954d71aadc8575c3d8f5a07116f2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a74b4a70036bafefc2d927d40bb4ae3e652954d71aadc8575c3d8f5a07116f2e", kill_on_drop: false }`
[INFO] [stdout] a74b4a70036bafefc2d927d40bb4ae3e652954d71aadc8575c3d8f5a07116f2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4dd620693f6459e6b6e43fc8ff6659bf467518092f990a7f9623d0a963e8641
[INFO] running `Command { std: "docker" "start" "-a" "a4dd620693f6459e6b6e43fc8ff6659bf467518092f990a7f9623d0a963e8641", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling slab v0.4.11
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling syn v2.0.109
[INFO] [stderr]    Compiling dashmap v5.5.3
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling serial_test_derive v0.10.0
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling serial_test v0.10.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling swift-rs v1.0.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `autorelease::*`
[INFO] [stdout]   --> src-rs/lib.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use autorelease::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `autorelease::*`
[INFO] [stdout]   --> src-rs/lib.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use autorelease::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src-rs/swift.rs:34:25
[INFO] [stdout]    |
[INFO] [stdout] 34 |     unsafe fn swift_ref(&self) -> SwiftRef<Self>
[INFO] [stdout]    |                         ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 34 |     unsafe fn swift_ref(&self) -> SwiftRef<'_, Self>
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src-rs/swift.rs:34:25
[INFO] [stdout]    |
[INFO] [stdout] 34 |     unsafe fn swift_ref(&self) -> SwiftRef<Self>
[INFO] [stdout]    |                         ^^^^^     ^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 34 |     unsafe fn swift_ref(&self) -> SwiftRef<'_, Self>
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/tmp/rustcWGZ5Ts/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libtest-*,libgetopts-*,librustc_std_workspace_std-*}.rlib" "/opt/rustwide/target/debug/deps/{libswift_rs-c8000d0ae12a5c64,libserial_test-5a4e82a3f82ca371,libparking_lot-9974f6db5227739a,libfutures-f44398fe9cf927f1,libfutures_executor-c458119a9f68413a,libfutures_util-5c70ac9e18b1c9f4,libmemchr-f9c66c7ba21bf873,libfutures_io-3e19596c076de665,libslab-8c0cbfb396425d81,libfutures_channel-bb3bea02536f003a,libpin_project_lite-bedc6e0acd72ff2a,libfutures_sink-23538ced8fe824d7,libfutures_task-19b3aba2be9e7ae8,libpin_utils-9a5791cba021167a,libfutures_core-7288ace658af78d0,liblog-45f74354a8b36c20,liblazy_static-b3603208c0de2608,libdashmap-dbbd33244d807262,liblock_api-b14bc138db870a36,libscopeguard-d52bd00767847e44,libonce_cell-0ba6aecba7086d38,libparking_lot_core-aa64ba0f11ec592f,liblibc-e2775a15e5abc6fd,libcfg_if-5af52f617df93f8f,libsmallvec-45f6e3b8047adea1,libhashbrown-c66a0cd602652163}.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,libcfg_if-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,liblibc-*,librustc_std_workspace_core-*,liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-L" "/tmp/rustcWGZ5Ts/raw-dylibs" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/test_bindings-7d811605e4d5582a" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: undefined symbol: retain_object
[INFO] [stdout]           >>> referenced by swift.rs:93 (src-rs/swift.rs:93)
[INFO] [stdout]           >>>               swift_rs-c8000d0ae12a5c64.swift_rs.c5a131753c62235f-cgu.0.rcgu.o:(swift_rs::swift::retain_object::hfe93f4a5c4b11ec0) in archive /opt/rustwide/target/debug/deps/libswift_rs-c8000d0ae12a5c64.rlib
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: release_object
[INFO] [stdout]           >>> referenced by swift.rs:93 (src-rs/swift.rs:93)
[INFO] [stdout]           >>>               swift_rs-c8000d0ae12a5c64.swift_rs.c5a131753c62235f-cgu.0.rcgu.o:(swift_rs::swift::release_object::hb5f0f7461b9deb61) in archive /opt/rustwide/target/debug/deps/libswift_rs-c8000d0ae12a5c64.rlib
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: data_from_bytes
[INFO] [stdout]           >>> referenced by swift.rs:93 (src-rs/swift.rs:93)
[INFO] [stdout]           >>>               swift_rs-c8000d0ae12a5c64.swift_rs.c5a131753c62235f-cgu.0.rcgu.o:(swift_rs::swift::data_from_bytes::h7365f8d464e8fd75) in archive /opt/rustwide/target/debug/deps/libswift_rs-c8000d0ae12a5c64.rlib
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: string_from_bytes
[INFO] [stdout]           >>> referenced by swift.rs:93 (src-rs/swift.rs:93)
[INFO] [stdout]           >>>               swift_rs-c8000d0ae12a5c64.swift_rs.c5a131753c62235f-cgu.0.rcgu.o:(swift_rs::swift::string_from_bytes::hb4cefdd015910a14) in archive /opt/rustwide/target/debug/deps/libswift_rs-c8000d0ae12a5c64.rlib
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: complex_data
[INFO] [stdout]           >>> referenced by swift.rs:93 (src-rs/swift.rs:93)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/test_bindings-7d811605e4d5582a.test_bindings.d63b75c154530179-cgu.0.rcgu.o:(test_bindings::complex_data::h9877c3f7fb28bde7)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: get_greeting
[INFO] [stdout]           >>> referenced by swift.rs:93 (src-rs/swift.rs:93)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/test_bindings-7d811605e4d5582a.test_bindings.d63b75c154530179-cgu.0.rcgu.o:(test_bindings::get_greeting::hd0381056512244af)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: objc_autoreleasePoolPush
[INFO] [stdout]           >>> referenced by test_bindings.rs:99 (tests/test_bindings.rs:99)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/test_bindings-7d811605e4d5582a.test_bindings.d63b75c154530179-cgu.0.rcgu.o:(test_bindings::test_autoreleasepool::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h830e0ecdfbf833b6)
[INFO] [stdout]           >>> referenced by test_bindings.rs:99 (tests/test_bindings.rs:99)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/test_bindings-7d811605e4d5582a.test_bindings.d63b75c154530179-cgu.0.rcgu.o:(test_bindings::test_autoreleasepool::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::hdab83a8c80e778db)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: objc_autoreleasePoolPop
[INFO] [stdout]           >>> referenced by test_bindings.rs:99 (tests/test_bindings.rs:99)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/test_bindings-7d811605e4d5582a.test_bindings.d63b75c154530179-cgu.0.rcgu.o:(test_bindings::test_autoreleasepool::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::h830e0ecdfbf833b6)
[INFO] [stdout]           >>> referenced by test_bindings.rs:99 (tests/test_bindings.rs:99)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/test_bindings-7d811605e4d5582a.test_bindings.d63b75c154530179-cgu.0.rcgu.o:(test_bindings::test_autoreleasepool::_$u7b$$u7b$closure$u7d$$u7d$::_$u7b$$u7b$closure$u7d$$u7d$::hdab83a8c80e778db)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: echo
[INFO] [stdout]           >>> referenced by swift.rs:93 (src-rs/swift.rs:93)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/test_bindings-7d811605e4d5582a.test_bindings.d63b75c154530179-cgu.0.rcgu.o:(test_bindings::echo::h1be721f69c5c8d25)
[INFO] [stdout]           
[INFO] [stdout]           rust-lld: error: undefined symbol: echo_data
[INFO] [stdout]           >>> referenced by swift.rs:93 (src-rs/swift.rs:93)
[INFO] [stdout]           >>>               /opt/rustwide/target/debug/deps/test_bindings-7d811605e4d5582a.test_bindings.d63b75c154530179-cgu.0.rcgu.o:(test_bindings::echo_data::ha65c2f9b4bd9b88d)
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `swift-rs` (test "test_bindings") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "a4dd620693f6459e6b6e43fc8ff6659bf467518092f990a7f9623d0a963e8641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4dd620693f6459e6b6e43fc8ff6659bf467518092f990a7f9623d0a963e8641", kill_on_drop: false }`
[INFO] [stdout] a4dd620693f6459e6b6e43fc8ff6659bf467518092f990a7f9623d0a963e8641
