[INFO] crate objc_id 0.1.1 is already in cache
[INFO] extracting crate objc_id 0.1.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/objc_id/0.1.1
[INFO] extracting crate objc_id 0.1.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/objc_id/0.1.1
[INFO] validating manifest of objc_id-0.1.1 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of objc_id-0.1.1 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing objc_id-0.1.1
[INFO] finished frobbing objc_id-0.1.1
[INFO] frobbed toml for objc_id-0.1.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/objc_id/0.1.1/Cargo.toml
[INFO] started frobbing objc_id-0.1.1
[INFO] finished frobbing objc_id-0.1.1
[INFO] frobbed toml for objc_id-0.1.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/objc_id/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing objc_id-0.1.1 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/objc_id/0.1.1:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] c20054d1024addd8eb90ce1c18ea78ec7bdb2f52b28f4e030f19e2ec51a2541d
[INFO] running `"docker" "start" "-a" "c20054d1024addd8eb90ce1c18ea78ec7bdb2f52b28f4e030f19e2ec51a2541d"`
[INFO] [stderr]    Compiling malloc_buf v0.0.6
[INFO] [stderr]    Compiling objc v0.2.6
[INFO] [stderr]    Compiling objc_id v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:42:1
[INFO] [stderr]    |
[INFO] [stderr] 42 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `"docker" "inspect" "c20054d1024addd8eb90ce1c18ea78ec7bdb2f52b28f4e030f19e2ec51a2541d"`
[INFO] running `"docker" "rm" "-f" "c20054d1024addd8eb90ce1c18ea78ec7bdb2f52b28f4e030f19e2ec51a2541d"`
[INFO] [stdout] c20054d1024addd8eb90ce1c18ea78ec7bdb2f52b28f4e030f19e2ec51a2541d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/objc_id/0.1.1:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 13c400151bfcb1dfb4a80fb71b91241f382f36d0863ae8755d0a0ed3401b1b6d
[INFO] running `"docker" "start" "-a" "13c400151bfcb1dfb4a80fb71b91241f382f36d0863ae8755d0a0ed3401b1b6d"`
[INFO] [stderr]    Compiling objc_id v0.1.1 (/opt/crater/workdir)
[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/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/objc_id-7b0d2e6444409390.objc_id.e3oy3dwt-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/objc_id-7b0d2e6444409390.objc_id.e3oy3dwt-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/objc_id-7b0d2e6444409390.objc_id.e3oy3dwt-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/objc_id-7b0d2e6444409390.objc_id.e3oy3dwt-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/objc_id-7b0d2e6444409390.objc_id.e3oy3dwt-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/objc_id-7b0d2e6444409390.objc_id.e3oy3dwt-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/objc_id-7b0d2e6444409390.objc_id.e3oy3dwt-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/objc_id-7b0d2e6444409390.objc_id.e3oy3dwt-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/objc_id-7b0d2e6444409390.objc_id.e3oy3dwt-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/objc_id-7b0d2e6444409390.objc_id.e3oy3dwt-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/objc_id-7b0d2e6444409390.objc_id.e3oy3dwt-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/objc_id-7b0d2e6444409390.objc_id.e3oy3dwt-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/objc_id-7b0d2e6444409390.objc_id.e3oy3dwt-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/objc_id-7b0d2e6444409390.objc_id.e3oy3dwt-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/objc_id-7b0d2e6444409390.objc_id.e3oy3dwt-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/objc_id-7b0d2e6444409390.objc_id.e3oy3dwt-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/objc_id-7b0d2e6444409390" "/opt/crater/target/debug/deps/objc_id-7b0d2e6444409390.1cmcr4d4j9au3g4o.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest-e8fbf0b14816ca0e.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libterm-c9d91925876437f2.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts-50d6bab7df588609.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width-913b30c2987aa8da.rlib" "/opt/crater/target/debug/deps/libobjc-e83080076b924ae3.rlib" "/opt/crater/target/debug/deps/libmalloc_buf-cb715c160058df0c.rlib" "/opt/crater/target/debug/deps/liblibc-e3ba75b536aabfa5.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-9895e8982b0a79e7.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-57306b8ed3378a0e.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-54463ae5adae3649.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-d99667b199a9875a.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-51f4300e102199f5.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-b3ccf1f7737a6a91.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-157c37a3ceb78853.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-505bcee45aafb736.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-c29abd529ba4452b.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-895383a3232f6572.rlib" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-5594cb4f559bc761.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/1.36.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-38e90baf978bc428.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-e83080076b924ae3.rlib(objc-e83080076b924ae3.objc.6g0kcucc-cgu.11.rcgu.o): In function `objc::rc::strong::StrongPtr::retain':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/objc-0.2.6/src/rc/strong.rs:24: undefined reference to `objc_retain'
[INFO] [stderr]           /opt/crater/target/debug/deps/libobjc-e83080076b924ae3.rlib(objc-e83080076b924ae3.objc.6g0kcucc-cgu.11.rcgu.o): In function `<objc::rc::strong::StrongPtr as core::ops::drop::Drop>::drop':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/objc-0.2.6/src/rc/strong.rs:48: undefined reference to `objc_release'
[INFO] [stderr]           /opt/crater/target/debug/deps/libobjc-e83080076b924ae3.rlib(objc-e83080076b924ae3.objc.6g0kcucc-cgu.9.rcgu.o): In function `objc::rc::weak::WeakPtr::new':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/objc-0.2.6/src/rc/weak.rs:20: undefined reference to `objc_initWeak'
[INFO] [stderr]           /opt/crater/target/debug/deps/libobjc-e83080076b924ae3.rlib(objc-e83080076b924ae3.objc.6g0kcucc-cgu.9.rcgu.o): In function `objc::rc::weak::WeakPtr::load':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/objc-0.2.6/src/rc/weak.rs:28: undefined reference to `objc_loadWeakRetained'
[INFO] [stderr]           /opt/crater/target/debug/deps/libobjc-e83080076b924ae3.rlib(objc-e83080076b924ae3.objc.6g0kcucc-cgu.9.rcgu.o): In function `<objc::rc::weak::WeakPtr as core::ops::drop::Drop>::drop':
[INFO] [stderr]           /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/objc-0.2.6/src/rc/weak.rs:37: undefined reference to `objc_destroyWeak'
[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_id`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "13c400151bfcb1dfb4a80fb71b91241f382f36d0863ae8755d0a0ed3401b1b6d"`
[INFO] running `"docker" "rm" "-f" "13c400151bfcb1dfb4a80fb71b91241f382f36d0863ae8755d0a0ed3401b1b6d"`
[INFO] [stdout] 13c400151bfcb1dfb4a80fb71b91241f382f36d0863ae8755d0a0ed3401b1b6d