[INFO] cloning repository jgall/obj_c_rust_test [INFO] running `"git" "clone" "--bare" "git://github.com/jgall/obj_c_rust_test.git" "work/cache/sources/gh/jgall/obj_c_rust_test"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/jgall/obj_c_rust_test'... [INFO] running `"git" "clone" "work/cache/sources/gh/jgall/obj_c_rust_test" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/jgall/obj_c_rust_test"` [INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/jgall/obj_c_rust_test'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/jgall/obj_c_rust_test" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/jgall/obj_c_rust_test"` [INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/jgall/obj_c_rust_test'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] d99b84868cb9ecc7c2762735db8b31f3642a9f17 [INFO] sha for GitHub repo jgall/obj_c_rust_test: d99b84868cb9ecc7c2762735db8b31f3642a9f17 [INFO] validating manifest of jgall/obj_c_rust_test on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of jgall/obj_c_rust_test on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing jgall/obj_c_rust_test [INFO] finished frobbing jgall/obj_c_rust_test [INFO] frobbed toml for jgall/obj_c_rust_test written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/jgall/obj_c_rust_test/Cargo.toml [INFO] started frobbing jgall/obj_c_rust_test [INFO] finished frobbing jgall/obj_c_rust_test [INFO] frobbed toml for jgall/obj_c_rust_test written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/jgall/obj_c_rust_test/Cargo.toml [INFO] crate jgall/obj_c_rust_test already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing jgall/obj_c_rust_test against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/jgall/obj_c_rust_test:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"` [INFO] [stdout] dbe0f78153580f3b166dac7a501a99d195fcc0ef7dc7b66b514bcdfba2c8b7e4 [INFO] running `"docker" "start" "-a" "dbe0f78153580f3b166dac7a501a99d195fcc0ef7dc7b66b514bcdfba2c8b7e4"` [INFO] [stderr] Compiling malloc_buf v0.0.6 [INFO] [stderr] Compiling objc v0.2.5 [INFO] [stderr] Compiling obj_c_rust_test v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `objc::declare::ClassDecl` [INFO] [stderr] --> src/class.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use objc::declare::ClassDecl; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Class`, `Object`, `Sel` [INFO] [stderr] --> src/class.rs:2:21 [INFO] [stderr] | [INFO] [stderr] 2 | use objc::runtime::{Class, Object, Sel}; [INFO] [stderr] | ^^^^^ ^^^^^^ ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred [INFO] [stderr] --> src/main.rs:22:24 [INFO] [stderr] | [INFO] [stderr] 22 | let my_box_class = register_class!(MyBox:NSObject with { [INFO] [stderr] | ________________________^ [INFO] [stderr] 23 | | (pub width: u32), [INFO] [stderr] 24 | | (priv height: u32), [INFO] [stderr] 25 | | (sel getThing:withOtherThing: <- my_method), [INFO] [stderr] ... | [INFO] [stderr] 28 | | }), [INFO] [stderr] 29 | | }); [INFO] [stderr] | |______^ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: #[warn(deprecated)] on by default [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred [INFO] [stderr] --> src/main.rs:22:24 [INFO] [stderr] | [INFO] [stderr] 22 | let my_box_class = register_class!(MyBox:NSObject with { [INFO] [stderr] | ________________________^ [INFO] [stderr] 23 | | (pub width: u32), [INFO] [stderr] 24 | | (priv height: u32), [INFO] [stderr] 25 | | (sel getThing:withOtherThing: <- my_method), [INFO] [stderr] ... | [INFO] [stderr] 28 | | }), [INFO] [stderr] 29 | | }); [INFO] [stderr] | |______^ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred [INFO] [stderr] --> src/main.rs:22:24 [INFO] [stderr] | [INFO] [stderr] 22 | let my_box_class = register_class!(MyBox:NSObject with { [INFO] [stderr] | ________________________^ [INFO] [stderr] 23 | | (pub width: u32), [INFO] [stderr] 24 | | (priv height: u32), [INFO] [stderr] 25 | | (sel getThing:withOtherThing: <- my_method), [INFO] [stderr] ... | [INFO] [stderr] 28 | | }), [INFO] [stderr] 29 | | }); [INFO] [stderr] | |______^ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred [INFO] [stderr] --> src/main.rs:22:24 [INFO] [stderr] | [INFO] [stderr] 22 | let my_box_class = register_class!(MyBox:NSObject with { [INFO] [stderr] | ________________________^ [INFO] [stderr] 23 | | (pub width: u32), [INFO] [stderr] 24 | | (priv height: u32), [INFO] [stderr] 25 | | (sel getThing:withOtherThing: <- my_method), [INFO] [stderr] ... | [INFO] [stderr] 28 | | }), [INFO] [stderr] 29 | | }); [INFO] [stderr] | |______^ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred [INFO] [stderr] --> src/main.rs:22:24 [INFO] [stderr] | [INFO] [stderr] 22 | let my_box_class = register_class!(MyBox:NSObject with { [INFO] [stderr] | ________________________^ [INFO] [stderr] 23 | | (pub width: u32), [INFO] [stderr] 24 | | (priv height: u32), [INFO] [stderr] 25 | | (sel getThing:withOtherThing: <- my_method), [INFO] [stderr] ... | [INFO] [stderr] 28 | | }), [INFO] [stderr] 29 | | }); [INFO] [stderr] | |______^ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred [INFO] [stderr] --> src/main.rs:31:27 [INFO] [stderr] | [INFO] [stderr] 31 | let x: i32 = unsafe { msg_send![*obj, getThing:5i32 withOtherThing:6i32] }; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred [INFO] [stderr] --> src/main.rs:46:32 [INFO] [stderr] | [INFO] [stderr] 46 | let obj: *mut Object = msg_send![cls, alloc]; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred [INFO] [stderr] --> src/main.rs:47:32 [INFO] [stderr] | [INFO] [stderr] 47 | let obj: *mut Object = msg_send![obj, init]; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred [INFO] [stderr] --> src/main.rs:57:20 [INFO] [stderr] | [INFO] [stderr] 57 | let hash_sel = sel!(hash); [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_USIZE_INIT': the `new` function is now preferred [INFO] [stderr] --> src/main.rs:64:32 [INFO] [stderr] | [INFO] [stderr] 64 | let hash: usize = unsafe { msg_send![*obj, hash] }; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused variable: `obj` [INFO] [stderr] --> src/main.rs:17:30 [INFO] [stderr] | [INFO] [stderr] 17 | extern "C" fn obj_method(obj: &mut Object, sel: Sel, i1: i32, i2: i32) -> i32 { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_obj` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `sel` [INFO] [stderr] --> src/main.rs:17:48 [INFO] [stderr] | [INFO] [stderr] 17 | extern "C" fn obj_method(obj: &mut Object, sel: Sel, i1: i32, i2: i32) -> i32 { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_sel` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i1` [INFO] [stderr] --> src/main.rs:17:58 [INFO] [stderr] | [INFO] [stderr] 17 | extern "C" fn obj_method(obj: &mut Object, sel: Sel, i1: i32, i2: i32) -> i32 { [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_i1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i2` [INFO] [stderr] --> src/main.rs:17:67 [INFO] [stderr] | [INFO] [stderr] 17 | extern "C" fn obj_method(obj: &mut Object, sel: Sel, i1: i32, i2: i32) -> i32 { [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_i2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `obj` [INFO] [stderr] --> src/main.rs:26:68 [INFO] [stderr] | [INFO] [stderr] 26 | (sel getThing2:(u32)t1 withOtherThing:(u32)t2 -> u32 with |obj, sel| { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_obj` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `sel` [INFO] [stderr] --> src/main.rs:26:73 [INFO] [stderr] | [INFO] [stderr] 26 | (sel getThing2:(u32)t1 withOtherThing:(u32)t2 -> u32 with |obj, sel| { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_sel` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t1` [INFO] [stderr] --> src/main.rs:26:29 [INFO] [stderr] | [INFO] [stderr] 26 | (sel getThing2:(u32)t1 withOtherThing:(u32)t2 -> u32 with |obj, sel| { [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_t1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `t2` [INFO] [stderr] --> src/main.rs:26:52 [INFO] [stderr] | [INFO] [stderr] 26 | (sel getThing2:(u32)t1 withOtherThing:(u32)t2 -> u32 with |obj, sel| { [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_t2` [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/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/obj_c_rust_test-db759258a9ad13d3.obj_c_rust_test.c1wvoplr-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/obj_c_rust_test-db759258a9ad13d3.obj_c_rust_test.c1wvoplr-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/obj_c_rust_test-db759258a9ad13d3.obj_c_rust_test.c1wvoplr-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/obj_c_rust_test-db759258a9ad13d3.obj_c_rust_test.c1wvoplr-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/obj_c_rust_test-db759258a9ad13d3.obj_c_rust_test.c1wvoplr-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/obj_c_rust_test-db759258a9ad13d3.obj_c_rust_test.c1wvoplr-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/obj_c_rust_test-db759258a9ad13d3.obj_c_rust_test.c1wvoplr-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/obj_c_rust_test-db759258a9ad13d3.obj_c_rust_test.c1wvoplr-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/obj_c_rust_test-db759258a9ad13d3.obj_c_rust_test.c1wvoplr-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/obj_c_rust_test-db759258a9ad13d3.obj_c_rust_test.c1wvoplr-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/obj_c_rust_test-db759258a9ad13d3.obj_c_rust_test.c1wvoplr-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/obj_c_rust_test-db759258a9ad13d3.obj_c_rust_test.c1wvoplr-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/obj_c_rust_test-db759258a9ad13d3.obj_c_rust_test.c1wvoplr-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/obj_c_rust_test-db759258a9ad13d3.obj_c_rust_test.c1wvoplr-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/obj_c_rust_test-db759258a9ad13d3.obj_c_rust_test.c1wvoplr-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/obj_c_rust_test-db759258a9ad13d3.obj_c_rust_test.c1wvoplr-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/obj_c_rust_test-db759258a9ad13d3" "/opt/crater/target/debug/deps/obj_c_rust_test-db759258a9ad13d3.3pindfgxucldwhcf.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libobjc-dc9200719fc08d95.rlib" "/opt/crater/target/debug/deps/libmalloc_buf-f531a39f0bc1dd92.rlib" "/opt/crater/target/debug/deps/liblibc-769a0e146ae914f9.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-5eb7072357e3f704.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-be57a0a20ef83edc.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-53ea5c4d1e8787c5.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-90a03fea645d1ca0.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-d0be8ec5eb12a622.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-c9bd1ed65ad5f9b5.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-232a620458cbc142.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-378c2daa95643520.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-b1ad0e3b0cafff9a.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-bd92551ef79ec0f7.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-6f92150ede6dcf89.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-5d5836de4a922af7.rlib" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-0bd990bd23dec0da.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/c8865d8e195813ade6b84434ac9f8850e7112d1a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-f5a50a9afbc6d167.rlib" "-Wl,-Bdynamic" "-lobjc" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil" [INFO] [stderr] = note: /opt/crater/target/debug/deps/libobjc-dc9200719fc08d95.rlib(objc-dc9200719fc08d95.objc.9u5nb66l-cgu.1.rcgu.o): In function `objc::runtime::Object::class': [INFO] [stderr] /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/objc-0.2.5/src/runtime.rs:464: undefined reference to `object_getClass' [INFO] [stderr] /opt/crater/target/debug/deps/libobjc-dc9200719fc08d95.rlib(objc-dc9200719fc08d95.objc.9u5nb66l-cgu.11.rcgu.o): In function `::drop': [INFO] [stderr] /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/objc-0.2.5/src/rc/strong.rs:48: undefined reference to `objc_release' [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 `obj_c_rust_test`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "dbe0f78153580f3b166dac7a501a99d195fcc0ef7dc7b66b514bcdfba2c8b7e4"` [INFO] running `"docker" "rm" "-f" "dbe0f78153580f3b166dac7a501a99d195fcc0ef7dc7b66b514bcdfba2c8b7e4"` [INFO] [stdout] dbe0f78153580f3b166dac7a501a99d195fcc0ef7dc7b66b514bcdfba2c8b7e4