[INFO] fetching crate cntk 0.2.1...
[INFO] checking cntk-0.2.1 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate cntk 0.2.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate cntk 0.2.1 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cntk 0.2.1
[INFO] finished tweaking crates.io crate cntk 0.2.1
[INFO] tweaked toml for crates.io crate cntk 0.2.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cpp_synom v0.12.0
[INFO] [stderr]   Downloaded cpp_synmap v0.3.0
[INFO] [stderr]   Downloaded ndarray v0.10.14
[INFO] [stderr]   Downloaded mnist v0.4.1
[INFO] [stderr]   Downloaded cpp_syn v0.12.0
[INFO] [stderr]   Downloaded cpp v0.3.2
[INFO] [stderr]   Downloaded cpp_macros v0.3.2
[INFO] [stderr]   Downloaded cpp_build v0.3.2
[INFO] [stderr]   Downloaded cpp_common v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b85848002ba6959f136bb93489f90a71244b93fe3f56caf5f89d0f1a9d89a311
[INFO] running `Command { std: "docker" "start" "-a" "b85848002ba6959f136bb93489f90a71244b93fe3f56caf5f89d0f1a9d89a311", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b85848002ba6959f136bb93489f90a71244b93fe3f56caf5f89d0f1a9d89a311", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b85848002ba6959f136bb93489f90a71244b93fe3f56caf5f89d0f1a9d89a311", kill_on_drop: false }`
[INFO] [stdout] b85848002ba6959f136bb93489f90a71244b93fe3f56caf5f89d0f1a9d89a311
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a39fa71ea30c59264bf13c99a826554fca215a4d0f049c37e2f7908aa0a737c
[INFO] running `Command { std: "docker" "start" "-a" "2a39fa71ea30c59264bf13c99a826554fca215a4d0f049c37e2f7908aa0a737c", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling cpp_synom v0.12.0
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling ndarray v0.10.14
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking mnist v0.4.1
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]    Compiling cpp_syn v0.12.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]    Compiling cpp_common v0.3.2
[INFO] [stderr]    Compiling cpp_synmap v0.3.0
[INFO] [stderr]    Compiling cpp_build v0.3.2
[INFO] [stderr]    Compiling cpp_macros v0.3.2
[INFO] [stderr]    Compiling cntk v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking cpp v0.3.2
[INFO] [stderr] error: failed to run custom build command for `cntk v0.2.1 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/cntk-948a3a03eb977354/build-script-build` (exit status: 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]   TARGET = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr]   HOST = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr]   CXXFLAGS_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   CXXFLAGS_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   HOST_CXXFLAGS = None
[INFO] [stderr]   CXXFLAGS = None
[INFO] [stderr]   DEBUG = Some("true")
[INFO] [stderr]   running: "g++-4.8" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-m64" "-I" "/opt/rustwide/workdir" "-std=c++11" "-Wall" "-Wextra" "-o" "/opt/rustwide/target/debug/build/cntk-a9b713c4f86977a7/out/rust_cpp/cpp_closures.o" "-c" "/opt/rustwide/target/debug/build/cntk-a9b713c4f86977a7/out/rust_cpp/cpp_closures.cpp"
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/gcc-0.3.55/src/lib.rs:1672:5:
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   Internal error occurred: Failed to find tool. Is `g++-4.8` installed?
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5620aa052be4 - std::backtrace_rs::backtrace::libunwind::trace::h3da9427eac6b2713
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stderr]      1:     0x5620aa052be4 - std::backtrace_rs::backtrace::trace_unsynchronized::h8b6ad79cb60b1f10
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5620aa052be4 - std::sys_common::backtrace::_print_fmt::h0332dac066d13bb4
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]      3:     0x5620aa052be4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::ha53f24802e841e78
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x5620aa077b3c - core::fmt::rt::Argument::fmt::hb7cd99f2796dbda9
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]      5:     0x5620aa077b3c - core::fmt::write_internal::hd9480cc81e0db946
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/core/src/fmt/mod.rs:1143:17
[INFO] [stderr]      6:     0x5620aa04fb27 - core::fmt::write::hc9b13aa14bb399e7
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/core/src/fmt/mod.rs:1125:67
[INFO] [stderr]      7:     0x5620aa04fb27 - std::io::Write::write_fmt::h7f190ab8bb73d292
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/io/mod.rs:1846:15
[INFO] [stderr]      8:     0x5620aa052994 - std::sys_common::backtrace::_print::h4dfa85ce29f289cd
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      9:     0x5620aa052994 - std::sys_common::backtrace::print::h075bb0820ca1af60
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]     10:     0x5620aa0540cb - std::panicking::default_hook::{{closure}}::h2868146f5a47a8b0
[INFO] [stderr]     11:     0x5620aa053e27 - std::panicking::default_hook::h75759d10d3c62529
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/panicking.rs:292:9
[INFO] [stderr]     12:     0x5620aa05459d - std::panicking::rust_panic_with_hook::h96d9580203cd93f6
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/panicking.rs:779:13
[INFO] [stderr]     13:     0x5620aa054472 - std::panicking::begin_panic_handler::{{closure}}::h99fe5817649d74e2
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/panicking.rs:657:13
[INFO] [stderr]     14:     0x5620aa0530b6 - std::sys_common::backtrace::__rust_end_short_backtrace::hec38ffed74bfdff4
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]     15:     0x5620aa054174 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/panicking.rs:645:5
[INFO] [stderr]     16:     0x5620a9ed1235 - core::panicking::panic_fmt::hef2c7eb118bd8e9b
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/core/src/panicking.rs:72:14
[INFO] [stderr]     17:     0x5620a9ef38e1 - gcc::fail::h790b2624f2a11e7c
[INFO] [stderr]     18:     0x5620a9ee6b6f - gcc::Build::compile::hdd6ea1b02f633d67
[INFO] [stderr]     19:     0x5620a9ed6459 - cpp_build::Config::build::h4b0ae3d3b90777a6
[INFO] [stderr]     20:     0x5620a9ed6613 - build_script_build::main::hd847df7a5fc11979
[INFO] [stderr]     21:     0x5620a9ed2033 - core::ops::function::FnOnce::call_once::he0d508f0727f00c1
[INFO] [stderr]     22:     0x5620a9ed1c46 - std::sys_common::backtrace::__rust_begin_short_backtrace::h11e55b7e81ab7853
[INFO] [stderr]     23:     0x5620a9ed1d09 - std::rt::lang_start::{{closure}}::h8d98b61b06c6d235
[INFO] [stderr]     24:     0x5620aa04bd63 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd6488a2c974ca719
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     25:     0x5620aa04bd63 - std::panicking::try::do_call::hff3b4848e08a12d1
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/panicking.rs:552:40
[INFO] [stderr]     26:     0x5620aa04bd63 - std::panicking::try::h8353a4dfa2f5a00f
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/panicking.rs:516:19
[INFO] [stderr]     27:     0x5620aa04bd63 - std::panic::catch_unwind::h2e8a9f6c47367d26
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/panic.rs:146:14
[INFO] [stderr]     28:     0x5620aa04bd63 - std::rt::lang_start_internal::{{closure}}::ha0861aba81fd1864
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/rt.rs:148:48
[INFO] [stderr]     29:     0x5620aa04bd63 - std::panicking::try::do_call::hbeaa0ec31679b9c5
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/panicking.rs:552:40
[INFO] [stderr]     30:     0x5620aa04bd63 - std::panicking::try::h72d757b913472f73
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/panicking.rs:516:19
[INFO] [stderr]     31:     0x5620aa04bd63 - std::panic::catch_unwind::h96f93e52837969a1
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/panic.rs:146:14
[INFO] [stderr]     32:     0x5620aa04bd63 - std::rt::lang_start_internal::h217e3c78cd070052
[INFO] [stderr]                                  at /rustc/80399064afa4a2cd153f30d02c25f7ea0383ed65/library/std/src/rt.rs:148:20
[INFO] [stderr]     33:     0x5620a9ed1ce7 - std::rt::lang_start::h25f1b88c23f2d1ec
[INFO] [stderr]     34:     0x5620a9ed6685 - main
[INFO] [stderr]     35:     0x7f90509d8d90 - <unknown>
[INFO] [stderr]     36:     0x7f90509d8e40 - __libc_start_main
[INFO] [stderr]     37:     0x5620a9ed1905 - _start
[INFO] [stderr]     38:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "2a39fa71ea30c59264bf13c99a826554fca215a4d0f049c37e2f7908aa0a737c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a39fa71ea30c59264bf13c99a826554fca215a4d0f049c37e2f7908aa0a737c", kill_on_drop: false }`
[INFO] [stdout] 2a39fa71ea30c59264bf13c99a826554fca215a4d0f049c37e2f7908aa0a737c
[INFO] checking cntk-0.2.1 against master#09bc67b9158392361780e779d32997f14cc75c39 for opaque-soundness-fix
[INFO] extracting crate cntk 0.2.1 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate cntk 0.2.1 on toolchain 09bc67b9158392361780e779d32997f14cc75c39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cntk 0.2.1
[INFO] finished tweaking crates.io crate cntk 0.2.1
[INFO] tweaked toml for crates.io crate cntk 0.2.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3dd1986dc85a867339aabce104d42539d43a51376f79f6b4fd3d95a7a543a1f
[INFO] running `Command { std: "docker" "start" "-a" "d3dd1986dc85a867339aabce104d42539d43a51376f79f6b4fd3d95a7a543a1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3dd1986dc85a867339aabce104d42539d43a51376f79f6b4fd3d95a7a543a1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3dd1986dc85a867339aabce104d42539d43a51376f79f6b4fd3d95a7a543a1f", kill_on_drop: false }`
[INFO] [stdout] d3dd1986dc85a867339aabce104d42539d43a51376f79f6b4fd3d95a7a543a1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+09bc67b9158392361780e779d32997f14cc75c39" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e9b266086688ff34785df1390204f68552ecf6a84d882b578f5edee08d5dd42
[INFO] running `Command { std: "docker" "start" "-a" "1e9b266086688ff34785df1390204f68552ecf6a84d882b578f5edee08d5dd42", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling cpp_synom v0.12.0
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling ndarray v0.10.14
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking mnist v0.4.1
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]    Compiling cpp_syn v0.12.0
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]    Compiling cpp_common v0.3.2
[INFO] [stderr]    Compiling cpp_synmap v0.3.0
[INFO] [stderr]    Compiling cpp_build v0.3.2
[INFO] [stderr]    Compiling cpp_macros v0.3.2
[INFO] [stderr]    Compiling cntk v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking cpp v0.3.2
[INFO] [stderr] error: failed to run custom build command for `cntk v0.2.1 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/cntk-948a3a03eb977354/build-script-build` (exit status: 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]   TARGET = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr]   HOST = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr]   CXXFLAGS_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   CXXFLAGS_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   HOST_CXXFLAGS = None
[INFO] [stderr]   CXXFLAGS = None
[INFO] [stderr]   DEBUG = Some("true")
[INFO] [stderr]   running: "g++-4.8" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-m64" "-I" "/opt/rustwide/workdir" "-std=c++11" "-Wall" "-Wextra" "-o" "/opt/rustwide/target/debug/build/cntk-a9b713c4f86977a7/out/rust_cpp/cpp_closures.o" "-c" "/opt/rustwide/target/debug/build/cntk-a9b713c4f86977a7/out/rust_cpp/cpp_closures.cpp"
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/gcc-0.3.55/src/lib.rs:1672:5:
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   Internal error occurred: Failed to find tool. Is `g++-4.8` installed?
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x564582c6eb84 - std::backtrace_rs::backtrace::libunwind::trace::ha269129b308e8cfe
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stderr]      1:     0x564582c6eb84 - std::backtrace_rs::backtrace::trace_unsynchronized::h6c30c9d176b1fe6c
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x564582c6eb84 - std::sys_common::backtrace::_print_fmt::hf6b70b066af57d7e
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]      3:     0x564582c6eb84 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h961653cce9a40c42
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x564582c93adc - core::fmt::rt::Argument::fmt::hfe981cfeb1b0daf7
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]      5:     0x564582c93adc - core::fmt::write_internal::h010429e58abf16d3
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/core/src/fmt/mod.rs:1143:17
[INFO] [stderr]      6:     0x564582c6bac7 - core::fmt::write::hbc83f8bc1fb2a2c3
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/core/src/fmt/mod.rs:1125:67
[INFO] [stderr]      7:     0x564582c6bac7 - std::io::Write::write_fmt::h0d2511f6f8b131c6
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/io/mod.rs:1846:15
[INFO] [stderr]      8:     0x564582c6e934 - std::sys_common::backtrace::_print::h8054040189250c54
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      9:     0x564582c6e934 - std::sys_common::backtrace::print::h4f6dff18046d32ce
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]     10:     0x564582c7006b - std::panicking::default_hook::{{closure}}::ha4fbf2ad5aa029a6
[INFO] [stderr]     11:     0x564582c6fdc7 - std::panicking::default_hook::h90811d9a4dfa7ce2
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/panicking.rs:292:9
[INFO] [stderr]     12:     0x564582c7053d - std::panicking::rust_panic_with_hook::h4a5dd36eccd5bedd
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/panicking.rs:779:13
[INFO] [stderr]     13:     0x564582c70412 - std::panicking::begin_panic_handler::{{closure}}::h056f6766330a5ffd
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/panicking.rs:657:13
[INFO] [stderr]     14:     0x564582c6f056 - std::sys_common::backtrace::__rust_end_short_backtrace::hd793624a8803abaf
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]     15:     0x564582c70114 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/panicking.rs:645:5
[INFO] [stderr]     16:     0x564582aed235 - core::panicking::panic_fmt::h066e57da90c3d911
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/core/src/panicking.rs:72:14
[INFO] [stderr]     17:     0x564582b0f8e1 - gcc::fail::h0c854ca65d06c275
[INFO] [stderr]     18:     0x564582b02b6f - gcc::Build::compile::hbbd6272fb35d3ce1
[INFO] [stderr]     19:     0x564582af2459 - cpp_build::Config::build::hcdec554d1d8a3204
[INFO] [stderr]     20:     0x564582af2613 - build_script_build::main::hf6c6175f52ee5712
[INFO] [stderr]     21:     0x564582aee033 - core::ops::function::FnOnce::call_once::ha5428e81c1f51066
[INFO] [stderr]     22:     0x564582aedc46 - std::sys_common::backtrace::__rust_begin_short_backtrace::h03d5e5b2bbbf93ee
[INFO] [stderr]     23:     0x564582aedd09 - std::rt::lang_start::{{closure}}::h436a4aa3431e6140
[INFO] [stderr]     24:     0x564582c67d03 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h0e77261b589aece8
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     25:     0x564582c67d03 - std::panicking::try::do_call::h3edb0e0c87b3e42a
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/panicking.rs:552:40
[INFO] [stderr]     26:     0x564582c67d03 - std::panicking::try::h6beba20585741c74
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/panicking.rs:516:19
[INFO] [stderr]     27:     0x564582c67d03 - std::panic::catch_unwind::h03f336e551f1c2d5
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/panic.rs:146:14
[INFO] [stderr]     28:     0x564582c67d03 - std::rt::lang_start_internal::{{closure}}::hae675b7b6b83a24a
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/rt.rs:148:48
[INFO] [stderr]     29:     0x564582c67d03 - std::panicking::try::do_call::hae86f8dd5f008ce6
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/panicking.rs:552:40
[INFO] [stderr]     30:     0x564582c67d03 - std::panicking::try::hfd92af168468e1a1
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/panicking.rs:516:19
[INFO] [stderr]     31:     0x564582c67d03 - std::panic::catch_unwind::h4b77e4eb1ed0743a
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/panic.rs:146:14
[INFO] [stderr]     32:     0x564582c67d03 - std::rt::lang_start_internal::h8a2c6b0b12994b7e
[INFO] [stderr]                                  at /rustc/09bc67b9158392361780e779d32997f14cc75c39/library/std/src/rt.rs:148:20
[INFO] [stderr]     33:     0x564582aedce7 - std::rt::lang_start::h61b78771a08e2cc9
[INFO] [stderr]     34:     0x564582af2685 - main
[INFO] [stderr]     35:     0x7fadfd40fd90 - <unknown>
[INFO] [stderr]     36:     0x7fadfd40fe40 - __libc_start_main
[INFO] [stderr]     37:     0x564582aed905 - _start
[INFO] [stderr]     38:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "1e9b266086688ff34785df1390204f68552ecf6a84d882b578f5edee08d5dd42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e9b266086688ff34785df1390204f68552ecf6a84d882b578f5edee08d5dd42", kill_on_drop: false }`
[INFO] [stdout] 1e9b266086688ff34785df1390204f68552ecf6a84d882b578f5edee08d5dd42
