[INFO] crate spawn-task-port 0.1.1 is already in cache
[INFO] extracting crate spawn-task-port 0.1.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/spawn-task-port/0.1.1
[INFO] extracting crate spawn-task-port 0.1.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/spawn-task-port/0.1.1
[INFO] validating manifest of spawn-task-port-0.1.1 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 spawn-task-port-0.1.1 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 spawn-task-port-0.1.1
[INFO] finished frobbing spawn-task-port-0.1.1
[INFO] frobbed toml for spawn-task-port-0.1.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/spawn-task-port/0.1.1/Cargo.toml
[INFO] started frobbing spawn-task-port-0.1.1
[INFO] finished frobbing spawn-task-port-0.1.1
[INFO] frobbed toml for spawn-task-port-0.1.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/spawn-task-port/0.1.1/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 spawn-task-port-0.1.1 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/spawn-task-port/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 6a6cb288cce2cf138859148c5de84c6c0522f009243d08f130fe94a274cc1e6a
[INFO] running `"docker" "start" "-a" "6a6cb288cce2cf138859148c5de84c6c0522f009243d08f130fe94a274cc1e6a"`
[INFO] [stderr]    Compiling mach v0.1.2
[INFO] [stderr]    Compiling spawn-task-port v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::os::unix::process::CommandExt::before_exec': should be unsafe, use `pre_exec` instead
[INFO] [stderr]    --> src/lib.rs:115:26
[INFO] [stderr]     |
[INFO] [stderr] 115 |         let child = self.before_exec(move || {
[INFO] [stderr]     |                          ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.22s
[INFO] running `"docker" "inspect" "6a6cb288cce2cf138859148c5de84c6c0522f009243d08f130fe94a274cc1e6a"`
[INFO] running `"docker" "rm" "-f" "6a6cb288cce2cf138859148c5de84c6c0522f009243d08f130fe94a274cc1e6a"`
[INFO] [stdout] 6a6cb288cce2cf138859148c5de84c6c0522f009243d08f130fe94a274cc1e6a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/spawn-task-port/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9d6f8a635aa08fb74eb856787f885b11fa4f256b532675188aa4f333b8d181ca
[INFO] running `"docker" "start" "-a" "9d6f8a635aa08fb74eb856787f885b11fa4f256b532675188aa4f333b8d181ca"`
[INFO] [stderr]    Compiling docmatic v0.1.2
[INFO] [stderr]    Compiling spawn-task-port v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::os::unix::process::CommandExt::before_exec': should be unsafe, use `pre_exec` instead
[INFO] [stderr]    --> src/lib.rs:115:26
[INFO] [stderr]     |
[INFO] [stderr] 115 |         let child = self.before_exec(move || {
[INFO] [stderr]     |                          ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[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/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/test-108935e770bbfec5.test.elfs25ua-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/test-108935e770bbfec5.test.elfs25ua-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/test-108935e770bbfec5.test.elfs25ua-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/test-108935e770bbfec5.test.elfs25ua-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/test-108935e770bbfec5.test.elfs25ua-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/test-108935e770bbfec5.test.elfs25ua-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/test-108935e770bbfec5.test.elfs25ua-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/test-108935e770bbfec5.test.elfs25ua-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/test-108935e770bbfec5.test.elfs25ua-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/test-108935e770bbfec5.test.elfs25ua-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/test-108935e770bbfec5.test.elfs25ua-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/test-108935e770bbfec5.test.elfs25ua-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/test-108935e770bbfec5.test.elfs25ua-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/test-108935e770bbfec5.test.elfs25ua-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/test-108935e770bbfec5.test.elfs25ua-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/test-108935e770bbfec5.test.elfs25ua-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/test-108935e770bbfec5" "/opt/crater/target/debug/deps/test-108935e770bbfec5.4t5wr8qg0j8cnr0b.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/target/debug/build/backtrace-sys-5c81d3694d492bc0/out" "-L" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest-0127509d2e54a846.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libterm-2651f8b4eed9e86e.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts-c729851ce6e3efb2.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width-e8235f0d435d4737.rlib" "/opt/crater/target/debug/deps/libspawn_task_port-126333365cdcebb6.rlib" "/opt/crater/target/debug/deps/libuuid-ab967a2922c7408a.rlib" "/opt/crater/target/debug/deps/librand-c5856808b7d2d058.rlib" "/opt/crater/target/debug/deps/librand-a2977b71a5d1a0ed.rlib" "/opt/crater/target/debug/deps/libmach-ed977573d7b12599.rlib" "/opt/crater/target/debug/deps/liblibc-d019039477cac03b.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-4a76ff35a356aedf.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e11c7b3b3225afe2.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-13217ede3d276f16.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-621a9ee22da6caa1.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-546c844e8071bbeb.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-be9569e4d599746f.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-47d8845cef2a3bc5.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-017511bce73a530c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-be7979c57a08057b.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d6459c4f0817c67c.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-580035dd98451925.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-aee5c24fff305dea.rlib" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8a55a4098920125a.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/1.37.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-9fc4b5be2ba5cc19.rlib" "-Wl,-Bdynamic" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil"
[INFO] [stderr]   = note: /opt/crater/target/debug/deps/test-108935e770bbfec5.test.elfs25ua-cgu.3.rcgu.o: In function `test::test_process_pid':
[INFO] [stderr]           /opt/crater/workdir/tests/test.rs:39: undefined reference to `pid_for_task'
[INFO] [stderr]           /opt/crater/target/debug/deps/libspawn_task_port-126333365cdcebb6.rlib(spawn_task_port-126333365cdcebb6.spawn_task_port.8cgeh7tt-cgu.0.rcgu.o): In function `<std::process::Command as spawn_task_port::CommandSpawnWithTask>::spawn_get_task_port':
[INFO] [stderr]           /opt/crater/workdir/src/lib.rs:93: undefined reference to `mach_task_self'
[INFO] [stderr]           /opt/crater/workdir/src/lib.rs:93: undefined reference to `mach_port_allocate'
[INFO] [stderr]           /opt/crater/workdir/src/lib.rs:97: undefined reference to `mach_task_self'
[INFO] [stderr]           /opt/crater/workdir/src/lib.rs:97: undefined reference to `mach_port_insert_right'
[INFO] [stderr]           /opt/crater/workdir/src/lib.rs:109: undefined reference to `mach_task_self'
[INFO] [stderr]           /opt/crater/workdir/src/lib.rs:109: undefined reference to `task_get_special_port'
[INFO] [stderr]           /opt/crater/workdir/src/lib.rs:112: undefined reference to `bootstrap_register2'
[INFO] [stderr]           /opt/crater/workdir/src/lib.rs:153: undefined reference to `mach_msg'
[INFO] [stderr]           /opt/crater/target/debug/deps/libspawn_task_port-126333365cdcebb6.rlib(spawn_task_port-126333365cdcebb6.spawn_task_port.8cgeh7tt-cgu.2.rcgu.o): In function `<spawn_task_port::MachPort as core::ops::drop::Drop>::drop':
[INFO] [stderr]           /opt/crater/workdir/src/lib.rs:46: undefined reference to `mach_task_self'
[INFO] [stderr]           /opt/crater/workdir/src/lib.rs:46: undefined reference to `mach_port_deallocate'
[INFO] [stderr]           /opt/crater/target/debug/deps/libspawn_task_port-126333365cdcebb6.rlib(spawn_task_port-126333365cdcebb6.spawn_task_port.8cgeh7tt-cgu.2.rcgu.o): In function `<std::process::Command as spawn_task_port::CommandSpawnWithTask>::spawn_get_task_port::{{closure}}':
[INFO] [stderr]           /opt/crater/workdir/src/lib.rs:120: undefined reference to `mach_task_self'
[INFO] [stderr]           /opt/crater/workdir/src/lib.rs:120: undefined reference to `task_get_special_port'
[INFO] [stderr]           /opt/crater/workdir/src/lib.rs:125: undefined reference to `bootstrap_look_up'
[INFO] [stderr]           /opt/crater/workdir/src/lib.rs:139: undefined reference to `mach_task_self'
[INFO] [stderr]           /opt/crater/workdir/src/lib.rs:142: undefined reference to `mach_msg_send'
[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 `spawn-task-port`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "9d6f8a635aa08fb74eb856787f885b11fa4f256b532675188aa4f333b8d181ca"`
[INFO] running `"docker" "rm" "-f" "9d6f8a635aa08fb74eb856787f885b11fa4f256b532675188aa4f333b8d181ca"`
[INFO] [stdout] 9d6f8a635aa08fb74eb856787f885b11fa4f256b532675188aa4f333b8d181ca