[INFO] crate block 0.1.6 is already in cache
[INFO] extracting crate block 0.1.6 into work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/block/0.1.6
[INFO] extracting crate block 0.1.6 into work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/block/0.1.6
[INFO] validating manifest of block-0.1.6 on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of block-0.1.6 on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing block-0.1.6
[INFO] removed path dependency objc_test_utils from block-0.1.6
[INFO] finished frobbing block-0.1.6
[INFO] frobbed toml for block-0.1.6 written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/block/0.1.6/Cargo.toml
[INFO] started frobbing block-0.1.6
[INFO] removed path dependency objc_test_utils from block-0.1.6
[INFO] finished frobbing block-0.1.6
[INFO] frobbed toml for block-0.1.6 written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/block/0.1.6/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking block-0.1.6 against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-5/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/block/0.1.6:/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=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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 123220ace376a452bcb35c6a4949a5b394ddfb87ebbdfbe8705ef73100373ee0
[INFO] running `"docker" "start" "-a" "123220ace376a452bcb35c6a4949a5b394ddfb87ebbdfbe8705ef73100373ee0"`
[INFO] [stderr]     Checking block v0.1.6 (/opt/crater/workdir)
[INFO] [stderr]    Compiling objc_test_utils v0.0.2
[INFO] [stderr] error: failed to run custom build command for `objc_test_utils v0.0.2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/objc_test_utils-0e71854357729ea3/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] OPT_LEVEL = Some("0")
[INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] HOST = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] HOST = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] CC_x86_64-unknown-linux-gnu = None
[INFO] [stderr] CC_x86_64_unknown_linux_gnu = None
[INFO] [stderr] HOST_CC = None
[INFO] [stderr] CC = None
[INFO] [stderr] HOST = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] HOST = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] CFLAGS_x86_64-unknown-linux-gnu = None
[INFO] [stderr] CFLAGS_x86_64_unknown_linux_gnu = None
[INFO] [stderr] HOST_CFLAGS = None
[INFO] [stderr] CFLAGS = None
[INFO] [stderr] DEBUG = Some("true")
[INFO] [stderr] running: "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-m64" "-Wall" "-Wextra" "-o" "/opt/crater/target/debug/build/objc_test_utils-342d7a390254c3a1/out/block_utils.o" "-c" "block_utils.m"
[INFO] [stderr] cargo:warning=cc: error trying to exec 'cc1obj': execvp: No such file or directory
[INFO] [stderr] exit code: 1
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at '
[INFO] [stderr] 
[INFO] [stderr] Internal error occurred: Command "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-m64" "-Wall" "-Wextra" "-o" "/opt/crater/target/debug/build/objc_test_utils-342d7a390254c3a1/out/block_utils.o" "-c" "block_utils.m" with args "cc" did not execute successfully (status code exit code: 1).
[INFO] [stderr] 
[INFO] [stderr] ', /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.55/src/lib.rs:1672:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55698b0df6db - backtrace::backtrace::libunwind::trace::h098b67cd5ecf24d4
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55698b0df6db - backtrace::backtrace::trace_unsynchronized::h41f8ecb0b6b75123
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55698b0df6db - std::sys_common::backtrace::_print::h6bdd5779472ab8c6
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x55698b0df6db - std::sys_common::backtrace::print::h535418cbcfd3b064
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x55698b0df6db - std::panicking::default_hook::{{closure}}::h8962ad5cd6daeea4
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x55698b0df3b6 - std::panicking::default_hook::h39b428958abf2606
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x55698b0dfdfd - std::panicking::rust_panic_with_hook::hec5b145cd2b2dbe3
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x55698b0df982 - std::panicking::continue_panic_fmt::h499883e21d98c9ea
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]    8:     0x55698b0df8cf - std::panicking::begin_panic_fmt::hc0aeb5432668577f
[INFO] [stderr]                                at src/libstd/panicking.rs:339
[INFO] [stderr]    9:     0x55698b095906 - gcc::fail::hd553f1f8bf9bdd68
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.55/src/lib.rs:1672
[INFO] [stderr]   10:     0x55698b0859d1 - gcc::Build::compile::he456ee26347fb952
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.55/src/lib.rs:785
[INFO] [stderr]   11:     0x55698b081360 - gcc::compile_library::h21a8d1ff504be3d4
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.55/src/lib.rs:243
[INFO] [stderr]   12:     0x55698b080d25 - build_script_build::main::h108594fed16dae31
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/objc_test_utils-0.0.2/build.rs:4
[INFO] [stderr]   13:     0x55698b080cd0 - std::rt::lang_start::{{closure}}::h44267aa4af3e0e6f
[INFO] [stderr]                                at /rustc/757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/src/libstd/rt.rs:64
[INFO] [stderr]   14:     0x55698b0df853 - std::rt::lang_start_internal::{{closure}}::h1d5b2f63d8aab9e2
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   15:     0x55698b0df853 - std::panicking::try::do_call::h23b1282500223f6a
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   16:     0x55698b0e7b5a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   17:     0x55698b0e030d - std::panicking::try::hf851d9cd2a46569f
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   18:     0x55698b0e030d - std::panic::catch_unwind::h38ad47fd47b8a319
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   19:     0x55698b0e030d - std::rt::lang_start_internal::h8489a7c3e11328c4
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   20:     0x55698b080ca9 - std::rt::lang_start::hbc6dfd70a487e329
[INFO] [stderr]                                at /rustc/757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/src/libstd/rt.rs:64
[INFO] [stderr]   21:     0x55698b080d5a - main
[INFO] [stderr]   22:     0x7f63793622e1 - __libc_start_main
[INFO] [stderr]   23:     0x55698b080a9a - _start
[INFO] [stderr]   24:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "123220ace376a452bcb35c6a4949a5b394ddfb87ebbdfbe8705ef73100373ee0"`
[INFO] running `"docker" "rm" "-f" "123220ace376a452bcb35c6a4949a5b394ddfb87ebbdfbe8705ef73100373ee0"`
[INFO] [stdout] 123220ace376a452bcb35c6a4949a5b394ddfb87ebbdfbe8705ef73100373ee0