[INFO] updating cached repository ewgenius/xube-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ewgenius/xube-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ewgenius/xube-rust" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/ewgenius/xube-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/ewgenius/xube-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ewgenius/xube-rust" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/ewgenius/xube-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/ewgenius/xube-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fdcf940a3cd88b321aab64cf3458ca7e1cdf7af5
[INFO] sha for GitHub repo ewgenius/xube-rust: fdcf940a3cd88b321aab64cf3458ca7e1cdf7af5
[INFO] validating manifest of ewgenius/xube-rust on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ewgenius/xube-rust on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ewgenius/xube-rust
[INFO] finished frobbing ewgenius/xube-rust
[INFO] frobbed toml for ewgenius/xube-rust written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/ewgenius/xube-rust/Cargo.toml
[INFO] started frobbing ewgenius/xube-rust
[INFO] finished frobbing ewgenius/xube-rust
[INFO] frobbed toml for ewgenius/xube-rust written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/ewgenius/xube-rust/Cargo.toml
[INFO] crate ewgenius/xube-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/ewgenius/xube-rust/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stackvector v1.0.7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ewgenius/xube-rust against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-6/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/ewgenius/xube-rust:/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 72bca419b6ba4c9d216b37418323b6558a975e6b37bba53329f6a5100e53e15d
[INFO] running `"docker" "start" "-a" "72bca419b6ba4c9d216b37418323b6558a975e6b37bba53329f6a5100e53e15d"`
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking atom v0.3.5
[INFO] [stderr]     Checking crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling nonzero_signed v1.0.3
[INFO] [stderr]     Checking colorful v0.2.1
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]     Checking tuple_utils v0.2.0
[INFO] [stderr]     Checking shrev v1.1.1
[INFO] [stderr]    Compiling edit-distance v2.1.0
[INFO] [stderr]     Checking mint v0.5.1
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling winapi v0.3.8
[INFO] [stderr]     Checking objekt v0.1.2
[INFO] [stderr]     Checking claxon v0.4.2
[INFO] [stderr]     Checking xi-unicode v0.2.0
[INFO] [stderr]     Checking fluent-locale v0.4.1
[INFO] [stderr]     Checking fluent-syntax v0.9.0
[INFO] [stderr]     Checking float-ord v0.2.0
[INFO] [stderr]     Checking hashbrown v0.5.0
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling minimp3-sys v0.3.1
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling openssl-sys v0.9.49
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.7
[INFO] [stderr]     Checking miniz_oxide v0.3.2
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]    Compiling humantime v1.2.0
[INFO] [stderr]     Checking phf_shared v0.7.24
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]     Checking typenum v1.11.2
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling stackvector v1.0.7
[INFO] [stderr]    Compiling lexical-core v0.4.3
[INFO] [stderr]    Compiling lexical v2.2.2
[INFO] [stderr]    Compiling err-derive v0.1.5
[INFO] [stderr]    Compiling im v12.3.4
[INFO] [stderr]    Compiling rustc_version_runtime v0.1.5
[INFO] [stderr]    Compiling sentry v0.15.5
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]     Checking rustc-hash v1.0.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking ogg v0.7.0
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]     Checking rustc_version v0.2.3
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking backtrace-sys v0.1.31
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking x11-dl v2.18.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking getrandom v0.1.11
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking slice-deque v0.2.4
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking flate2 v1.0.11
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking uname v0.1.1
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking sized-chunks v0.1.3
[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/crater/target/debug/build/rustc_version_runtime-26bf406c6e3f1ac3/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:1084:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x56315e3ededb - backtrace::backtrace::libunwind::trace::h99e6362fdb92a8eb
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x56315e3ededb - backtrace::backtrace::trace_unsynchronized::hb03857eb223d1e1b
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x56315e3ededb - std::sys_common::backtrace::_print::hc504093b15dd6a49
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x56315e3ededb - std::sys_common::backtrace::print::h74592d8df46164e6
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x56315e3ededb - std::panicking::default_hook::{{closure}}::h148953d9747d04f4
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x56315e3edbb6 - std::panicking::default_hook::h72a253311e200c7c
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x56315e3ee59d - std::panicking::rust_panic_with_hook::h625fcf59e672b6a0
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x56315e3ee122 - std::panicking::continue_panic_fmt::hb865580971245aec
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]    8:     0x56315e3ee006 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:311
[INFO] [stderr]    9:     0x56315e4075ad - core::panicking::panic_fmt::h88ab02319bb01bbf
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   10:     0x56315e4076a7 - core::result::unwrap_failed::hcd16c30e39593715
[INFO] [stderr]                                at src/libcore/result.rs:1084
[INFO] [stderr]   11:     0x56315e3bed60 - core::result::Result<T,E>::unwrap::h145f0408920fb5be
[INFO] [stderr]                                at /rustc/c43d03a19f326f4a323569328cc501e86eb6d22e/src/libcore/result.rs:852
[INFO] [stderr]   12:     0x56315e3bb5db - build_script_build::main::h5f5679bcf1de4e3d
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc_version_runtime-0.1.5/build.rs:27
[INFO] [stderr]   13:     0x56315e3bcd70 - std::rt::lang_start::{{closure}}::hae11e7de298e4c61
[INFO] [stderr]                                at /rustc/c43d03a19f326f4a323569328cc501e86eb6d22e/src/libstd/rt.rs:64
[INFO] [stderr]   14:     0x56315e3edff3 - std::rt::lang_start_internal::{{closure}}::h5b4ccd53e4167b89
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   15:     0x56315e3edff3 - std::panicking::try::do_call::h85f9b79f07affa28
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   16:     0x56315e3f45da - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   17:     0x56315e3eeaad - std::panicking::try::h0463127fe79abe73
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   18:     0x56315e3eeaad - std::panic::catch_unwind::h846bfd7d9d99e56b
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   19:     0x56315e3eeaad - std::rt::lang_start_internal::h0a72d627fb2e90ec
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   20:     0x56315e3bcd49 - std::rt::lang_start::hfa32e927ebe4cebf
[INFO] [stderr]                                at /rustc/c43d03a19f326f4a323569328cc501e86eb6d22e/src/libstd/rt.rs:64
[INFO] [stderr]   21:     0x56315e3bc5ba - main
[INFO] [stderr]   22:     0x7fc6e99072e1 - __libc_start_main
[INFO] [stderr]   23:     0x56315e3baf8a - _start
[INFO] [stderr]   24:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "72bca419b6ba4c9d216b37418323b6558a975e6b37bba53329f6a5100e53e15d"`
[INFO] running `"docker" "rm" "-f" "72bca419b6ba4c9d216b37418323b6558a975e6b37bba53329f6a5100e53e15d"`
[INFO] [stdout] 72bca419b6ba4c9d216b37418323b6558a975e6b37bba53329f6a5100e53e15d