[INFO] crate objc 0.2.6 is already in cache
[INFO] extracting crate objc 0.2.6 into work/ex/beta-1.38-1/sources/1.37.0/reg/objc/0.2.6
[INFO] extracting crate objc 0.2.6 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/objc/0.2.6
[INFO] validating manifest of objc-0.2.6 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of objc-0.2.6 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing objc-0.2.6
[INFO] finished frobbing objc-0.2.6
[INFO] frobbed toml for objc-0.2.6 written to work/ex/beta-1.38-1/sources/1.37.0/reg/objc/0.2.6/Cargo.toml
[INFO] started frobbing objc-0.2.6
[INFO] finished frobbing objc-0.2.6
[INFO] frobbed toml for objc-0.2.6 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/objc/0.2.6/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing objc-0.2.6 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/objc/0.2.6:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] a01df6f0be201cf9ee100277dc1ed5bb91abf82eb7a9694b6c362313921a5fb8
[INFO] running `"docker" "start" "-a" "a01df6f0be201cf9ee100277dc1ed5bb91abf82eb7a9694b6c362313921a5fb8"`
[INFO] [stderr]    Compiling objc v0.2.6 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]   --> src/encode.rs:75:31
[INFO] [stderr]    |
[INFO] [stderr] 75 |         let s = self.as_str().trim_left_matches(QUALIFIERS);
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]   --> src/encode.rs:76:32
[INFO] [stderr]    |
[INFO] [stderr] 76 |         let o = other.as_str().trim_left_matches(QUALIFIERS);
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "a01df6f0be201cf9ee100277dc1ed5bb91abf82eb7a9694b6c362313921a5fb8"`
[INFO] running `"docker" "rm" "-f" "a01df6f0be201cf9ee100277dc1ed5bb91abf82eb7a9694b6c362313921a5fb8"`
[INFO] [stdout] a01df6f0be201cf9ee100277dc1ed5bb91abf82eb7a9694b6c362313921a5fb8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/objc/0.2.6:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6f18ea4bd3c412c5df3612398868cf281288806969b5f2e5ac79692ad78cb573
[INFO] running `"docker" "start" "-a" "6f18ea4bd3c412c5df3612398868cf281288806969b5f2e5ac79692ad78cb573"`
[INFO] [stderr]    Compiling objc v0.2.6 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]  --> src/test_utils.rs:3:23
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::sync::{Once, ONCE_INIT};
[INFO] [stderr]   |                       ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` 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/test_utils.rs:66:42
[INFO] [stderr]    |
[INFO] [stderr] 66 |     static REGISTER_CUSTOM_CLASS: Once = ONCE_INIT;
[INFO] [stderr]    |                                          ^^^^^^^^^ help: replace the use of the deprecated item: `Once::new()`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/test_utils.rs:125:45
[INFO] [stderr]     |
[INFO] [stderr] 125 |     static REGISTER_CUSTOM_PROTOCOL: Once = ONCE_INIT;
[INFO] [stderr]     |                                             ^^^^^^^^^ help: replace the use of the deprecated item: `Once::new()`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/test_utils.rs:141:48
[INFO] [stderr]     |
[INFO] [stderr] 141 |     static REGISTER_CUSTOM_SUBPROTOCOL: Once = ONCE_INIT;
[INFO] [stderr]     |                                                ^^^^^^^^^ help: replace the use of the deprecated item: `Once::new()`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/test_utils.rs:161:45
[INFO] [stderr]     |
[INFO] [stderr] 161 |     static REGISTER_CUSTOM_SUBCLASS: Once = ONCE_INIT;
[INFO] [stderr]     |                                             ^^^^^^^^^ help: replace the use of the deprecated item: `Once::new()`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]   --> src/encode.rs:75:31
[INFO] [stderr]    |
[INFO] [stderr] 75 |         let s = self.as_str().trim_left_matches(QUALIFIERS);
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]   --> src/encode.rs:76:32
[INFO] [stderr]    |
[INFO] [stderr] 76 |         let o = other.as_str().trim_left_matches(QUALIFIERS);
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[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/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/examples/example-f2b0a8262617dc02.example.c9kjui7p-cgu.0.rcgu.o" "/opt/crater/target/debug/examples/example-f2b0a8262617dc02.example.c9kjui7p-cgu.1.rcgu.o" "/opt/crater/target/debug/examples/example-f2b0a8262617dc02.example.c9kjui7p-cgu.10.rcgu.o" "/opt/crater/target/debug/examples/example-f2b0a8262617dc02.example.c9kjui7p-cgu.11.rcgu.o" "/opt/crater/target/debug/examples/example-f2b0a8262617dc02.example.c9kjui7p-cgu.12.rcgu.o" "/opt/crater/target/debug/examples/example-f2b0a8262617dc02.example.c9kjui7p-cgu.13.rcgu.o" "/opt/crater/target/debug/examples/example-f2b0a8262617dc02.example.c9kjui7p-cgu.14.rcgu.o" "/opt/crater/target/debug/examples/example-f2b0a8262617dc02.example.c9kjui7p-cgu.15.rcgu.o" "/opt/crater/target/debug/examples/example-f2b0a8262617dc02.example.c9kjui7p-cgu.2.rcgu.o" "/opt/crater/target/debug/examples/example-f2b0a8262617dc02.example.c9kjui7p-cgu.3.rcgu.o" "/opt/crater/target/debug/examples/example-f2b0a8262617dc02.example.c9kjui7p-cgu.4.rcgu.o" "/opt/crater/target/debug/examples/example-f2b0a8262617dc02.example.c9kjui7p-cgu.5.rcgu.o" "/opt/crater/target/debug/examples/example-f2b0a8262617dc02.example.c9kjui7p-cgu.6.rcgu.o" "/opt/crater/target/debug/examples/example-f2b0a8262617dc02.example.c9kjui7p-cgu.7.rcgu.o" "/opt/crater/target/debug/examples/example-f2b0a8262617dc02.example.c9kjui7p-cgu.8.rcgu.o" "/opt/crater/target/debug/examples/example-f2b0a8262617dc02.example.c9kjui7p-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/examples/example-f2b0a8262617dc02" "/opt/crater/target/debug/examples/example-f2b0a8262617dc02.4pqifuu2njkmdo4q.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libobjc-8662cd1025f5d9c3.rlib" "/opt/crater/target/debug/deps/libmalloc_buf-882dbff29dc7be0c.rlib" "/opt/crater/target/debug/deps/liblibc-37f3d1c853b3b7bd.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1d6d86bd078a28e9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e9721e46a424e2a9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-c07193698f282147.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-6da45690f3863086.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-690797036dd27680.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-d3896ccbfd8eda2b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-7cccc3739e3d7623.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-5e9ba178a513cd29.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-5ca9f83bf63d1f4b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-bba1c7ef9e950882.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-e23c9de62012deb5.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9b59dffdcd513d5d.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-17392340ab2e4a97.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-ac21508a81e3f7f3.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-8662cd1025f5d9c3.rlib(objc-8662cd1025f5d9c3.objc.3bs41nwm-cgu.1.rcgu.o): In function `objc::runtime::Object::class':
[INFO] [stderr]           /opt/crater/workdir/src/runtime.rs:464: undefined reference to `object_getClass'
[INFO] [stderr]           /opt/crater/target/debug/deps/libobjc-8662cd1025f5d9c3.rlib(objc-8662cd1025f5d9c3.objc.3bs41nwm-cgu.11.rcgu.o): In function `<objc::rc::strong::StrongPtr as core::ops::drop::Drop>::drop':
[INFO] [stderr]           /opt/crater/workdir/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 `objc`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/objc-1e7f553de83ebae7" "/opt/crater/target/debug/deps/objc-1e7f553de83ebae7.4zo5rok6mxvebk3o.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lobjc" "-Wl,-Bstatic" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest-f0d86b2ef6410e4f.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libterm-28a84d78fba0104f.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts-625008d0a6744ece.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width-b85c11af396739da.rlib" "/opt/crater/target/debug/deps/libmalloc_buf-882dbff29dc7be0c.rlib" "/opt/crater/target/debug/deps/liblibc-37f3d1c853b3b7bd.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1d6d86bd078a28e9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e9721e46a424e2a9.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-c07193698f282147.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-6da45690f3863086.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-690797036dd27680.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-d3896ccbfd8eda2b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-7cccc3739e3d7623.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-5e9ba178a513cd29.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-5ca9f83bf63d1f4b.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-bba1c7ef9e950882.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-e23c9de62012deb5.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9b59dffdcd513d5d.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-17392340ab2e4a97.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/beta-2019-08-13-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-ac21508a81e3f7f3.rlib" "-Wl,-Bdynamic" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.0.rcgu.o: In function `objc::declare::ProtocolDecl::new':
[INFO] [stderr]           /opt/crater/workdir/src/declare.rs:259: undefined reference to `objc_allocateProtocol'
[INFO] [stderr]           /opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.0.rcgu.o: In function `objc::declare::ProtocolDecl::add_method_description_common':
[INFO] [stderr]           /opt/crater/workdir/src/declare.rs:281: undefined reference to `protocol_addMethodDescription'
[INFO] [stderr]           /opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.0.rcgu.o: In function `objc::declare::ProtocolDecl::add_method_description_common':
[INFO] [stderr]           /opt/crater/workdir/src/declare.rs:281: undefined reference to `protocol_addMethodDescription'
[INFO] [stderr]           /opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.0.rcgu.o: In function `objc::declare::ProtocolDecl::add_method_description_common':
[INFO] [stderr]           /opt/crater/workdir/src/declare.rs:281: undefined reference to `protocol_addMethodDescription'
[INFO] [stderr]           /opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.0.rcgu.o: In function `objc::declare::ProtocolDecl::add_method_description_common':
[INFO] [stderr]           /opt/crater/workdir/src/declare.rs:281: undefined reference to `protocol_addMethodDescription'
[INFO] [stderr]           /opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.0.rcgu.o: In function `objc::declare::ProtocolDecl::add_protocol':
[INFO] [stderr]           /opt/crater/workdir/src/declare.rs:303: undefined reference to `protocol_addProtocol'
[INFO] [stderr]           /opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.0.rcgu.o: In function `objc::declare::ProtocolDecl::register':
[INFO] [stderr]           /opt/crater/workdir/src/declare.rs:311: undefined reference to `objc_registerProtocol'
[INFO] [stderr]           /opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.2.rcgu.o: In function `objc::runtime::Class::classes':
[INFO] [stderr]           /opt/crater/workdir/src/runtime.rs:290: undefined reference to `objc_copyClassList'
[INFO] [stderr]           /opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.2.rcgu.o: In function `objc::runtime::Class::metaclass':
[INFO] [stderr]           /opt/crater/workdir/src/runtime.rs:322: undefined reference to `object_getClass'
[INFO] [stderr]           /opt/crater/target/debug/deps/objc-1e7f553de83ebae7.objc.eaah1ndc-cgu.2.rcgu.o: In function `objc::runtime::Object::class':
[INFO] [stderr]           /opt/crater/workdir/src/runtime.rs:464: undefined reference to `object_getClass'
[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 `objc`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6f18ea4bd3c412c5df3612398868cf281288806969b5f2e5ac79692ad78cb573"`
[INFO] running `"docker" "rm" "-f" "6f18ea4bd3c412c5df3612398868cf281288806969b5f2e5ac79692ad78cb573"`
[INFO] [stdout] 6f18ea4bd3c412c5df3612398868cf281288806969b5f2e5ac79692ad78cb573