[INFO] updating cached repository https://github.com/kasper0406/neuralnetwork
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 848aac140f26e660aa96adf3bc3d1cbc1fd45a86
[INFO] checking kasper0406/neuralnetwork against master#74e80468347471779be6060d8d7d6d04e98e467f for pr-72788
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkasper0406%2Fneuralnetwork" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kasper0406/neuralnetwork on toolchain 74e80468347471779be6060d8d7d6d04e98e467f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/kasper0406/neuralnetwork
[INFO] finished tweaking git repo https://github.com/kasper0406/neuralnetwork
[INFO] tweaked toml for git repo https://github.com/kasper0406/neuralnetwork written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/kasper0406/neuralnetwork already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] afd06d5cc9c2780f33aa323a2e3143323faf017a6cac1c676639d8b1f9403a82
[INFO] running `"docker" "start" "-a" "afd06d5cc9c2780f33aa323a2e3143323faf017a6cac1c676639d8b1f9403a82"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling core-foundation-sys v0.6.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]    Compiling serde v1.0.79
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling digits v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking byteorder v1.2.6
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking futures-core-preview v0.2.3
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking lock_api v0.1.4
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking crossbeam-epoch v0.6.0
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking futures-channel-preview v0.2.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking futures-sink-preview v0.2.2
[INFO] [stderr]     Checking crossbeam-deque v0.5.2
[INFO] [stderr]    Compiling objc_exception v0.1.1
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking malloc_buf v0.0.6
[INFO] [stderr]     Checking core-foundation v0.6.4
[INFO] [stderr]     Checking rand v0.5.4
[INFO] [stderr]     Checking getrandom v0.1.7
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: cc: fatal error: cannot execute 'cc1obj': execvp: No such file or directory
[INFO] [stderr] warning: compilation terminated.
[INFO] [stderr] 
[INFO] [stderr] error: failed to run custom build command for `objc_exception v0.1.1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/objc_exception-f28b8a19315bbb7c/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/rustwide/target/debug/build/objc_exception-d3767b5dd4818151/out/extern/exception.o" "-c" "extern/exception.m"
[INFO] [stderr] cargo:warning=cc: fatal error: cannot execute 'cc1obj': execvp: No such file or directory
[INFO] [stderr] cargo:warning=compilation terminated.
[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/rustwide/target/debug/build/objc_exception-d3767b5dd4818151/out/extern/exception.o" "-c" "extern/exception.m" with args "cc" did not execute successfully (status code exit code: 1).
[INFO] [stderr] 
[INFO] [stderr] ', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.55/src/lib.rs:1672:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5591895cd405 - backtrace::backtrace::libunwind::trace::h508d2c55eb856ef2
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x5591895cd405 - backtrace::backtrace::trace_unsynchronized::h31c9d8a0097b92f8
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x5591895cd405 - std::sys_common::backtrace::_print_fmt::h520f528c4c103a3f
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x5591895cd405 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf4dec5da8360bccb
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x5591895f1dcc - core::fmt::write::hdf236390fbd68d3d
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1076
[INFO] [stderr]    5:     0x5591895c97a3 - std::io::Write::write_fmt::hd33447f61d92a88a
[INFO] [stderr]                                at src/libstd/io/mod.rs:1537
[INFO] [stderr]    6:     0x5591895cfc60 - std::sys_common::backtrace::_print::h856c809943c588ab
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x5591895cfc60 - std::sys_common::backtrace::print::hc042b4237cc3648a
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x5591895cfc60 - std::panicking::default_hook::{{closure}}::h35997132c163f935
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x5591895cf9ac - std::panicking::default_hook::h8555bf398b0f1318
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x5591895d0247 - std::panicking::rust_panic_with_hook::h9b80e82887819c44
[INFO] [stderr]                                at src/libstd/panicking.rs:486
[INFO] [stderr]   11:     0x5591895cfe4b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:388
[INFO] [stderr]   12:     0x5591895cfdbb - std::panicking::begin_panic_fmt::ha3a705fe707278db
[INFO] [stderr]                                at src/libstd/panicking.rs:342
[INFO] [stderr]   13:     0x5591895964f7 - gcc::fail::hd19a5f8f3c983d6c
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.55/src/lib.rs:1672
[INFO] [stderr]   14:     0x5591895885ce - gcc::Build::compile::h9e7444e5d92ed43d
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.55/src/lib.rs:785
[INFO] [stderr]   15:     0x559189584a75 - gcc::compile_library::h65e40204c70fec4b
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gcc-0.3.55/src/lib.rs:243
[INFO] [stderr]   16:     0x5591895842f5 - build_script_build::main::hf98d4632a122ee8b
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/objc_exception-0.1.1/build.rs:4
[INFO] [stderr]   17:     0x55918958439b - std::rt::lang_start::{{closure}}::h96f16768a221dc36
[INFO] [stderr]                                at /rustc/74e80468347471779be6060d8d7d6d04e98e467f/src/libstd/rt.rs:67
[INFO] [stderr]   18:     0x5591895d0618 - std::rt::lang_start_internal::{{closure}}::h4c8bd631e3dc2cb9
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   19:     0x5591895d0618 - std::panicking::try::do_call::h88ce8513ed0d613c
[INFO] [stderr]                                at src/libstd/panicking.rs:297
[INFO] [stderr]   20:     0x5591895d0618 - std::panicking::try::he181ad9c483671e2
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   21:     0x5591895d0618 - std::panic::catch_unwind::heb113c382f4c732f
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   22:     0x5591895d0618 - std::rt::lang_start_internal::h807304d390ed60ab
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   23:     0x559189584377 - std::rt::lang_start::hac9bec5515f65ba3
[INFO] [stderr]                                at /rustc/74e80468347471779be6060d8d7d6d04e98e467f/src/libstd/rt.rs:67
[INFO] [stderr]   24:     0x55918958432a - main
[INFO] [stderr]   25:     0x7f53b8a7e0b3 - __libc_start_main
[INFO] [stderr]   26:     0x55918958419e - _start
[INFO] [stderr]   27:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "afd06d5cc9c2780f33aa323a2e3143323faf017a6cac1c676639d8b1f9403a82"`
[INFO] running `"docker" "rm" "-f" "afd06d5cc9c2780f33aa323a2e3143323faf017a6cac1c676639d8b1f9403a82"`
[INFO] [stdout] afd06d5cc9c2780f33aa323a2e3143323faf017a6cac1c676639d8b1f9403a82