[INFO] fetching crate core_rustc-serialize 0.3.20-v0.3.19patch1...
[INFO] checking core_rustc-serialize-0.3.20-v0.3.19patch1 against master#b3bd7058c139e71bae0862ef8f8ac936208873e9 for pr-123752
[INFO] extracting crate core_rustc-serialize 0.3.20-v0.3.19patch1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate core_rustc-serialize 0.3.20-v0.3.19patch1 on toolchain b3bd7058c139e71bae0862ef8f8ac936208873e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate core_rustc-serialize 0.3.20-v0.3.19patch1
[INFO] finished tweaking crates.io crate core_rustc-serialize 0.3.20-v0.3.19patch1
[INFO] tweaked toml for crates.io crate core_rustc-serialize 0.3.20-v0.3.19patch1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 14 packages
[INFO] [stderr]       Adding rand v0.3.23 (latest: v0.8.5)
[INFO] [stderr]       Adding rand v0.4.6 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_core v0.3.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (latest: v0.6.4)
[INFO] [stderr]       Adding rdrand v0.4.0 (latest: v0.8.3)
[INFO] [stderr]       Adding rustc_version v0.1.7 (latest: v0.4.0)
[INFO] [stderr]       Adding semver v0.1.20 (latest: v1.0.22)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc_version v0.1.7
[INFO] [stderr]   Downloaded semver v0.1.20
[INFO] [stderr]   Downloaded core_collections v0.3.20170409
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc78630b259ba7230b2a9ebca04a4db8881329852c052ca281854191bf04f132
[INFO] running `Command { std: "docker" "start" "-a" "dc78630b259ba7230b2a9ebca04a4db8881329852c052ca281854191bf04f132", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc78630b259ba7230b2a9ebca04a4db8881329852c052ca281854191bf04f132", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc78630b259ba7230b2a9ebca04a4db8881329852c052ca281854191bf04f132", kill_on_drop: false }`
[INFO] [stdout] dc78630b259ba7230b2a9ebca04a4db8881329852c052ca281854191bf04f132
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff6a472461ee9d432caaa56100764511f8e6538d355daa47778cd8dac5989b7e
[INFO] running `Command { std: "docker" "start" "-a" "ff6a472461ee9d432caaa56100764511f8e6538d355daa47778cd8dac5989b7e", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling core_collections v0.3.20170409
[INFO] [stderr] error: failed to run custom build command for `core_collections v0.3.20170409`
[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/core_collections-08e65073018b5f60/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/core_collections-0.3.20170409/build.rs:48:69:
[INFO] [stderr]   Unknown compiler version, upgrade core_collections?
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55abd73e42b5 - std::backtrace_rs::backtrace::libunwind::trace::hc0846b9d5d734da3
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stderr]      1:     0x55abd73e42b5 - std::backtrace_rs::backtrace::trace_unsynchronized::haaeb5c07fc5f1c16
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55abd73e42b5 - std::sys_common::backtrace::_print_fmt::hf422d8687c118c78
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]      3:     0x55abd73e42b5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h826b8e7caae31c92
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x55abd7404c0b - core::fmt::rt::Argument::fmt::ha5794cc754ea58dc
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]      5:     0x55abd7404c0b - core::fmt::write::h90bf88fced7d7a85
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/core/src/fmt/mod.rs:1153:17
[INFO] [stderr]      6:     0x55abd73e207f - std::io::Write::write_fmt::h0542e06a2975a65e
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/io/mod.rs:1850:15
[INFO] [stderr]      7:     0x55abd73e408e - std::sys_common::backtrace::_print::h6c5d0ea7000c081f
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      8:     0x55abd73e408e - std::sys_common::backtrace::print::h8cc61d3d9cfe4b43
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      9:     0x55abd73e5349 - std::panicking::default_hook::{{closure}}::ha840b187609a73dc
[INFO] [stderr]     10:     0x55abd73e5065 - std::panicking::default_hook::h64931701a8dfbeb5
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/panicking.rs:291:9
[INFO] [stderr]     11:     0x55abd73e57e4 - std::panicking::rust_panic_with_hook::h0fc054ea3f5b1656
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/panicking.rs:788:13
[INFO] [stderr]     12:     0x55abd73e56c6 - std::panicking::begin_panic_handler::{{closure}}::hd39fcf318858b44e
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/panicking.rs:657:13
[INFO] [stderr]     13:     0x55abd73e4779 - std::sys_common::backtrace::__rust_end_short_backtrace::h41bac59379df1622
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]     14:     0x55abd73e53f7 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/panicking.rs:645:5
[INFO] [stderr]     15:     0x55abd73adf66 - core::panicking::panic_fmt::h7b8f1967fb403697
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/core/src/panicking.rs:72:14
[INFO] [stderr]     16:     0x55abd740413c - core::panicking::panic_display::ha57e243bac748b08
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/core/src/panicking.rs:256:5
[INFO] [stderr]     17:     0x55abd73adf2c - core::panicking::panic_str::h82e722106688d5da
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/core/src/panicking.rs:231:5
[INFO] [stderr]     18:     0x55abd73adf2c - core::option::expect_failed::h3d0ed0882d294743
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/core/src/option.rs:1994:5
[INFO] [stderr]     19:     0x55abd73af89a - core::option::Option<T>::expect::h76d6043388459569
[INFO] [stderr]     20:     0x55abd73b6692 - build_script_build::main::hc1b77724af004a24
[INFO] [stderr]     21:     0x55abd73af3f3 - core::ops::function::FnOnce::call_once::h9313525f270dd02c
[INFO] [stderr]     22:     0x55abd73ae746 - std::sys_common::backtrace::__rust_begin_short_backtrace::hd794cdff73bd615c
[INFO] [stderr]     23:     0x55abd73aef29 - std::rt::lang_start::{{closure}}::he9d5ae6f856343bc
[INFO] [stderr]     24:     0x55abd73deda6 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h49d0eb024581c58d
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     25:     0x55abd73deda6 - std::panicking::try::do_call::h216b6896714a987d
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/panicking.rs:552:40
[INFO] [stderr]     26:     0x55abd73deda6 - std::panicking::try::h4bac5f28dc782f91
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/panicking.rs:516:19
[INFO] [stderr]     27:     0x55abd73deda6 - std::panic::catch_unwind::h2a45431533d7ee9c
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/panic.rs:149:14
[INFO] [stderr]     28:     0x55abd73deda6 - std::rt::lang_start_internal::{{closure}}::h93ba00e1aef300e8
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/rt.rs:141:48
[INFO] [stderr]     29:     0x55abd73deda6 - std::panicking::try::do_call::hbeece6a5e5d1de22
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/panicking.rs:552:40
[INFO] [stderr]     30:     0x55abd73deda6 - std::panicking::try::h48d13e3c46df2cb2
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/panicking.rs:516:19
[INFO] [stderr]     31:     0x55abd73deda6 - std::panic::catch_unwind::he1a369a4d9ab7488
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/panic.rs:149:14
[INFO] [stderr]     32:     0x55abd73deda6 - std::rt::lang_start_internal::h5fddfc687b4198c5
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/rt.rs:141:20
[INFO] [stderr]     33:     0x55abd73aef07 - std::rt::lang_start::h3852de2c4f46213b
[INFO] [stderr]     34:     0x55abd73b71b5 - main
[INFO] [stderr]     35:     0x7f71341add90 - <unknown>
[INFO] [stderr]     36:     0x7f71341ade40 - __libc_start_main
[INFO] [stderr]     37:     0x55abd73ae675 - _start
[INFO] [stderr]     38:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "ff6a472461ee9d432caaa56100764511f8e6538d355daa47778cd8dac5989b7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff6a472461ee9d432caaa56100764511f8e6538d355daa47778cd8dac5989b7e", kill_on_drop: false }`
[INFO] [stdout] ff6a472461ee9d432caaa56100764511f8e6538d355daa47778cd8dac5989b7e
[INFO] checking core_rustc-serialize-0.3.20-v0.3.19patch1 against try#57fe1b734d9ff1c8a92bda60b85506b9648158d3 for pr-123752
[INFO] extracting crate core_rustc-serialize 0.3.20-v0.3.19patch1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate core_rustc-serialize 0.3.20-v0.3.19patch1 on toolchain 57fe1b734d9ff1c8a92bda60b85506b9648158d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate core_rustc-serialize 0.3.20-v0.3.19patch1
[INFO] finished tweaking crates.io crate core_rustc-serialize 0.3.20-v0.3.19patch1
[INFO] tweaked toml for crates.io crate core_rustc-serialize 0.3.20-v0.3.19patch1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 14 packages
[INFO] [stderr]       Adding rand v0.3.23 (latest: v0.8.5)
[INFO] [stderr]       Adding rand v0.4.6 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_core v0.3.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (latest: v0.6.4)
[INFO] [stderr]       Adding rdrand v0.4.0 (latest: v0.8.3)
[INFO] [stderr]       Adding rustc_version v0.1.7 (latest: v0.4.0)
[INFO] [stderr]       Adding semver v0.1.20 (latest: v1.0.22)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a33d40cce2425d7efc5bba069f19b774f4f5d764a1208d330d7156654cc0eaa
[INFO] running `Command { std: "docker" "start" "-a" "2a33d40cce2425d7efc5bba069f19b774f4f5d764a1208d330d7156654cc0eaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a33d40cce2425d7efc5bba069f19b774f4f5d764a1208d330d7156654cc0eaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a33d40cce2425d7efc5bba069f19b774f4f5d764a1208d330d7156654cc0eaa", kill_on_drop: false }`
[INFO] [stdout] 2a33d40cce2425d7efc5bba069f19b774f4f5d764a1208d330d7156654cc0eaa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52f56d88135a8e59a00c661a14252d8af91ca80785761f32ac283f4000c21c12
[INFO] running `Command { std: "docker" "start" "-a" "52f56d88135a8e59a00c661a14252d8af91ca80785761f32ac283f4000c21c12", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling core_collections v0.3.20170409
[INFO] [stderr] error: failed to run custom build command for `core_collections v0.3.20170409`
[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/core_collections-08e65073018b5f60/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/core_collections-0.3.20170409/build.rs:48:69:
[INFO] [stderr]   Unknown compiler version, upgrade core_collections?
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55b91027d2b5 - std::backtrace_rs::backtrace::libunwind::trace::hf3db8a8b40c24f7d
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stderr]      1:     0x55b91027d2b5 - std::backtrace_rs::backtrace::trace_unsynchronized::hc235afb01e65858b
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55b91027d2b5 - std::sys_common::backtrace::_print_fmt::h3d22b03c95159582
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]      3:     0x55b91027d2b5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hda8229ae97fa6e6e
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x55b91029dc0b - core::fmt::rt::Argument::fmt::hd364ed8041485813
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]      5:     0x55b91029dc0b - core::fmt::write::h5f860456c85c48e6
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/core/src/fmt/mod.rs:1153:17
[INFO] [stderr]      6:     0x55b91027b07f - std::io::Write::write_fmt::h9739ecb5be58d920
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/io/mod.rs:1850:15
[INFO] [stderr]      7:     0x55b91027d08e - std::sys_common::backtrace::_print::hccefc98514458b82
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      8:     0x55b91027d08e - std::sys_common::backtrace::print::h8665330714bbc830
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      9:     0x55b91027e349 - std::panicking::default_hook::{{closure}}::h861ab60f9faa0af8
[INFO] [stderr]     10:     0x55b91027e065 - std::panicking::default_hook::h246a08137a9bf8ad
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/panicking.rs:291:9
[INFO] [stderr]     11:     0x55b91027e7e4 - std::panicking::rust_panic_with_hook::hf3201bc4e87dcc95
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/panicking.rs:788:13
[INFO] [stderr]     12:     0x55b91027e6c6 - std::panicking::begin_panic_handler::{{closure}}::hb553d0042661e592
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/panicking.rs:657:13
[INFO] [stderr]     13:     0x55b91027d779 - std::sys_common::backtrace::__rust_end_short_backtrace::h803c216fab262e21
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]     14:     0x55b91027e3f7 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/panicking.rs:645:5
[INFO] [stderr]     15:     0x55b910246f66 - core::panicking::panic_fmt::h4d756fc5322adaca
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/core/src/panicking.rs:72:14
[INFO] [stderr]     16:     0x55b91029d13c - core::panicking::panic_display::hcd9958772c7a0372
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/core/src/panicking.rs:256:5
[INFO] [stderr]     17:     0x55b910246f2c - core::panicking::panic_str::ha129041ccf9fa537
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/core/src/panicking.rs:231:5
[INFO] [stderr]     18:     0x55b910246f2c - core::option::expect_failed::hda04ac80884ddba7
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/core/src/option.rs:1994:5
[INFO] [stderr]     19:     0x55b91024889a - core::option::Option<T>::expect::h578ea1ef3f3b3c2f
[INFO] [stderr]     20:     0x55b91024f692 - build_script_build::main::h357c42988272e505
[INFO] [stderr]     21:     0x55b9102483b3 - core::ops::function::FnOnce::call_once::hdc366474fd8e4f1a
[INFO] [stderr]     22:     0x55b910247746 - std::sys_common::backtrace::__rust_begin_short_backtrace::hfc22416318f11bf2
[INFO] [stderr]     23:     0x55b910247f29 - std::rt::lang_start::{{closure}}::h46e4a6610dcde168
[INFO] [stderr]     24:     0x55b910277da6 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hfbf15a8f32286aaa
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     25:     0x55b910277da6 - std::panicking::try::do_call::hdb1c225d0095074d
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/panicking.rs:552:40
[INFO] [stderr]     26:     0x55b910277da6 - std::panicking::try::hbcc926c02fc4540f
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/panicking.rs:516:19
[INFO] [stderr]     27:     0x55b910277da6 - std::panic::catch_unwind::h8b2d970b29c5af89
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/panic.rs:149:14
[INFO] [stderr]     28:     0x55b910277da6 - std::rt::lang_start_internal::{{closure}}::h04af4338bb06de8b
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/rt.rs:141:48
[INFO] [stderr]     29:     0x55b910277da6 - std::panicking::try::do_call::ha7ce4120aacfc8a3
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/panicking.rs:552:40
[INFO] [stderr]     30:     0x55b910277da6 - std::panicking::try::h8f2eb319a88f8304
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/panicking.rs:516:19
[INFO] [stderr]     31:     0x55b910277da6 - std::panic::catch_unwind::hd6c35347627418da
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/panic.rs:149:14
[INFO] [stderr]     32:     0x55b910277da6 - std::rt::lang_start_internal::h04e27d290bf4f790
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/rt.rs:141:20
[INFO] [stderr]     33:     0x55b910247f07 - std::rt::lang_start::hdeaf07a9b816459e
[INFO] [stderr]     34:     0x55b9102501b5 - main
[INFO] [stderr]     35:     0x7fe3dc8c8d90 - <unknown>
[INFO] [stderr]     36:     0x7fe3dc8c8e40 - __libc_start_main
[INFO] [stderr]     37:     0x55b910247675 - _start
[INFO] [stderr]     38:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "52f56d88135a8e59a00c661a14252d8af91ca80785761f32ac283f4000c21c12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52f56d88135a8e59a00c661a14252d8af91ca80785761f32ac283f4000c21c12", kill_on_drop: false }`
[INFO] [stdout] 52f56d88135a8e59a00c661a14252d8af91ca80785761f32ac283f4000c21c12
