[INFO] updating cached repository https://github.com/OliverHofkens/bubble_chamber
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] 28fd466f2be287b68d883f16ff29b85c0a01ab32
[INFO] testing OliverHofkens/bubble_chamber against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FOliverHofkens%2Fbubble_chamber" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/OliverHofkens/bubble_chamber on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/OliverHofkens/bubble_chamber
[INFO] finished tweaking git repo https://github.com/OliverHofkens/bubble_chamber
[INFO] tweaked toml for git repo https://github.com/OliverHofkens/bubble_chamber written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/OliverHofkens/bubble_chamber already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] d68039fc5b3716ef1d7eadc5b37b00b0d353b6347904a79448145f845022314a
[INFO] running `"docker" "start" "-a" "d68039fc5b3716ef1d7eadc5b37b00b0d353b6347904a79448145f845022314a"`
[INFO] [stderr]    Compiling libc v0.2.61
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling core-foundation-sys v0.6.2
[INFO] [stderr]    Compiling gfx-backend-metal v0.2.4
[INFO] [stderr]    Compiling range-alloc v0.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.0
[INFO] [stderr]    Compiling colorful v0.2.1
[INFO] [stderr]    Compiling syn v1.0.1
[INFO] [stderr]    Compiling edit-distance v2.1.0
[INFO] [stderr]    Compiling getrandom v0.1.9
[INFO] [stderr]    Compiling objekt v0.1.2
[INFO] [stderr]    Compiling winapi v0.3.7
[INFO] [stderr]    Compiling claxon v0.4.2
[INFO] [stderr]    Compiling svg v0.5.12
[INFO] [stderr]    Compiling spirv_cross v0.15.0
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling cmake v0.1.41
[INFO] [stderr]    Compiling minimp3-sys v0.3.1
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.7
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling objc_exception v0.1.1
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling lexical-core v0.4.3
[INFO] [stderr]    Compiling err-derive v0.1.5
[INFO] [stderr]    Compiling rustc-hash v1.0.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling storage-map v0.1.2
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling rustc_version_runtime v0.1.5
[INFO] [stderr] error: failed to run custom build command for `rustc_version_runtime v0.1.5`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rustc_version_runtime-9582fde9d6149f53/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/libcore/result.rs:1165:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55c3b77356d4 - backtrace::backtrace::libunwind::trace::hf625d18232cbbbd4
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55c3b77356d4 - backtrace::backtrace::trace_unsynchronized::h41d74150fc6ff542
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55c3b77356d4 - std::sys_common::backtrace::_print_fmt::h85d37830c667a1f9
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:76
[INFO] [stderr]    3:     0x55c3b77356d4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h2b7ac01d5feaf9b2
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:60
[INFO] [stderr]    4:     0x55c3b77535ec - core::fmt::write::h7fd0d904495c035f
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1030
[INFO] [stderr]    5:     0x55c3b77331c7 - std::io::Write::write_fmt::h663e4bf63637c947
[INFO] [stderr]                                at src/libstd/io/mod.rs:1412
[INFO] [stderr]    6:     0x55c3b7737a55 - std::sys_common::backtrace::_print::h4c743f7c274a5a74
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:64
[INFO] [stderr]    7:     0x55c3b7737a55 - std::sys_common::backtrace::print::ha5c4f4bf03800d4d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x55c3b7737a55 - std::panicking::default_hook::{{closure}}::h8b842185774c09e6
[INFO] [stderr]                                at src/libstd/panicking.rs:196
[INFO] [stderr]    9:     0x55c3b7737746 - std::panicking::default_hook::hd8ec13ee1bc2a65a
[INFO] [stderr]                                at src/libstd/panicking.rs:210
[INFO] [stderr]   10:     0x55c3b77380a5 - std::panicking::rust_panic_with_hook::hf3b27166e5f403e7
[INFO] [stderr]                                at src/libstd/panicking.rs:473
[INFO] [stderr]   11:     0x55c3b7737c42 - std::panicking::continue_panic_fmt::hd961751be84a6f83
[INFO] [stderr]                                at src/libstd/panicking.rs:380
[INFO] [stderr]   12:     0x55c3b7737b36 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:307
[INFO] [stderr]   13:     0x55c3b7750d0a - core::panicking::panic_fmt::h467e0364f9237670
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   14:     0x55c3b7750e07 - core::result::unwrap_failed::h38f3a56f1dadf080
[INFO] [stderr]                                at src/libcore/result.rs:1165
[INFO] [stderr]   15:     0x55c3b7708bc0 - core::result::Result<T,E>::unwrap::hf828b6e31890e34a
[INFO] [stderr]                                at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libcore/result.rs:933
[INFO] [stderr]   16:     0x55c3b770521b - build_script_build::main::h3e8567fe3e321cba
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc_version_runtime-0.1.5/build.rs:27
[INFO] [stderr]   17:     0x55c3b77069b0 - std::rt::lang_start::{{closure}}::he4ba454dedf164d6
[INFO] [stderr]                                at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/rt.rs:64
[INFO] [stderr]   18:     0x55c3b7737b23 - std::rt::lang_start_internal::{{closure}}::hf85bf15597d76295
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   19:     0x55c3b7737b23 - std::panicking::try::do_call::hd308ec0604b9bc21
[INFO] [stderr]                                at src/libstd/panicking.rs:292
[INFO] [stderr]   20:     0x55c3b773deda - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   21:     0x55c3b773859d - std::panicking::try::hafc45125a5bd2b22
[INFO] [stderr]                                at src/libstd/panicking.rs:271
[INFO] [stderr]   22:     0x55c3b773859d - std::panic::catch_unwind::h8494678ec44c4b51
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   23:     0x55c3b773859d - std::rt::lang_start_internal::h7404667a595739f8
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   24:     0x55c3b7706989 - std::rt::lang_start::ha6e5ef72de897fea
[INFO] [stderr]                                at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/rt.rs:64
[INFO] [stderr]   25:     0x55c3b77061fa - main
[INFO] [stderr]   26:     0x7f8ae2cf7b97 - __libc_start_main
[INFO] [stderr]   27:     0x55c3b7704bea - _start
[INFO] [stderr]   28:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: failed to run custom build command for `gfx-backend-metal v0.2.4`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/gfx-backend-metal-2b98a9b12a8f087c/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'unsupported target x86_64-unknown-linux-gnu', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gfx-backend-metal-0.2.4/build.rs:17:9
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55a9e7f949f4 - backtrace::backtrace::libunwind::trace::hf625d18232cbbbd4
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55a9e7f949f4 - backtrace::backtrace::trace_unsynchronized::h41d74150fc6ff542
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55a9e7f949f4 - std::sys_common::backtrace::_print_fmt::h85d37830c667a1f9
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:76
[INFO] [stderr]    3:     0x55a9e7f949f4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h2b7ac01d5feaf9b2
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:60
[INFO] [stderr]    4:     0x55a9e7fb21ec - core::fmt::write::h7fd0d904495c035f
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1030
[INFO] [stderr]    5:     0x55a9e7f921c7 - std::io::Write::write_fmt::h663e4bf63637c947
[INFO] [stderr]                                at src/libstd/io/mod.rs:1412
[INFO] [stderr]    6:     0x55a9e7f96cf5 - std::sys_common::backtrace::_print::h4c743f7c274a5a74
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:64
[INFO] [stderr]    7:     0x55a9e7f96cf5 - std::sys_common::backtrace::print::ha5c4f4bf03800d4d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x55a9e7f96cf5 - std::panicking::default_hook::{{closure}}::h8b842185774c09e6
[INFO] [stderr]                                at src/libstd/panicking.rs:196
[INFO] [stderr]    9:     0x55a9e7f969e6 - std::panicking::default_hook::hd8ec13ee1bc2a65a
[INFO] [stderr]                                at src/libstd/panicking.rs:210
[INFO] [stderr]   10:     0x55a9e7f97345 - std::panicking::rust_panic_with_hook::hf3b27166e5f403e7
[INFO] [stderr]                                at src/libstd/panicking.rs:473
[INFO] [stderr]   11:     0x55a9e7f96ee2 - std::panicking::continue_panic_fmt::hd961751be84a6f83
[INFO] [stderr]                                at src/libstd/panicking.rs:380
[INFO] [stderr]   12:     0x55a9e7f96e3c - std::panicking::begin_panic_fmt::h23ef54e17e5a13fa
[INFO] [stderr]                                at src/libstd/panicking.rs:335
[INFO] [stderr]   13:     0x55a9e7f8412b - build_script_build::main::hb68eb47b7da25e0d
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gfx-backend-metal-0.2.4/build.rs:17
[INFO] [stderr]   14:     0x55a9e7f7f150 - std::rt::lang_start::{{closure}}::h80198ed784deed04
[INFO] [stderr]                                at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/rt.rs:64
[INFO] [stderr]   15:     0x55a9e7f96dc3 - std::rt::lang_start_internal::{{closure}}::hf85bf15597d76295
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   16:     0x55a9e7f96dc3 - std::panicking::try::do_call::hd308ec0604b9bc21
[INFO] [stderr]                                at src/libstd/panicking.rs:292
[INFO] [stderr]   17:     0x55a9e7f9d3da - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   18:     0x55a9e7f9783d - std::panicking::try::hafc45125a5bd2b22
[INFO] [stderr]                                at src/libstd/panicking.rs:271
[INFO] [stderr]   19:     0x55a9e7f9783d - std::panic::catch_unwind::h8494678ec44c4b51
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   20:     0x55a9e7f9783d - std::rt::lang_start_internal::h7404667a595739f8
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   21:     0x55a9e7f7f129 - std::rt::lang_start::h4bd4e27c31e0d2fe
[INFO] [stderr]                                at /rustc/5752b6348ee6971573b278c315a02193c847ee32/src/libstd/rt.rs:64
[INFO] [stderr]   22:     0x55a9e7f8572a - main
[INFO] [stderr]   23:     0x7f5f2368bb97 - __libc_start_main
[INFO] [stderr]   24:     0x55a9e7f7930a - _start
[INFO] [stderr]   25:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "d68039fc5b3716ef1d7eadc5b37b00b0d353b6347904a79448145f845022314a"`
[INFO] running `"docker" "rm" "-f" "d68039fc5b3716ef1d7eadc5b37b00b0d353b6347904a79448145f845022314a"`
[INFO] [stdout] d68039fc5b3716ef1d7eadc5b37b00b0d353b6347904a79448145f845022314a