[INFO] updating cached repository Flowneee/exonum-football-voting
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Flowneee/exonum-football-voting
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Flowneee/exonum-football-voting" "work/ex/beta-1.38-1/sources/1.37.0/gh/Flowneee/exonum-football-voting"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Flowneee/exonum-football-voting'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Flowneee/exonum-football-voting" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Flowneee/exonum-football-voting"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Flowneee/exonum-football-voting'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b4d269b999251ae1106c930438e98ffb5a1b6434
[INFO] sha for GitHub repo Flowneee/exonum-football-voting: b4d269b999251ae1106c930438e98ffb5a1b6434
[INFO] validating manifest of Flowneee/exonum-football-voting on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Flowneee/exonum-football-voting on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Flowneee/exonum-football-voting
[INFO] finished frobbing Flowneee/exonum-football-voting
[INFO] frobbed toml for Flowneee/exonum-football-voting written to work/ex/beta-1.38-1/sources/1.37.0/gh/Flowneee/exonum-football-voting/Cargo.toml
[INFO] started frobbing Flowneee/exonum-football-voting
[INFO] finished frobbing Flowneee/exonum-football-voting
[INFO] frobbed toml for Flowneee/exonum-football-voting written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Flowneee/exonum-football-voting/Cargo.toml
[INFO] crate Flowneee/exonum-football-voting already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing Flowneee/exonum-football-voting against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Flowneee/exonum-football-voting:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 6dec7e6bbd4847865391ec0b5147f4a6b66887cde6a9addddb5fab73f2008ed6
[INFO] running `"docker" "start" "-a" "6dec7e6bbd4847865391ec0b5147f4a6b66887cde6a9addddb5fab73f2008ed6"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling httparse v1.3.1
[INFO] [stderr]    Compiling futures v0.1.21
[INFO] [stderr]    Compiling podio v0.1.6
[INFO] [stderr]    Compiling make-cmd v0.1.0
[INFO] [stderr]    Compiling regex v1.0.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.8
[INFO] [stderr]    Compiling scoped-tls v0.1.2
[INFO] [stderr]    Compiling os_info v1.0.1
[INFO] [stderr]    Compiling unwrap v1.1.0
[INFO] [stderr]    Compiling termcolor v0.3.6
[INFO] [stderr]    Compiling sequence_trie v0.3.5
[INFO] [stderr]    Compiling route-recognizer v0.1.12
[INFO] [stderr]    Compiling static_slice v0.0.3
[INFO] [stderr]    Compiling exonum v0.8.0
[INFO] [stderr]    Compiling bit-vec v0.5.0
[INFO] [stderr]    Compiling headers v0.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.3.2
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.32
[INFO] [stderr]    Compiling filetime v0.2.1
[INFO] [stderr]    Compiling xattr v0.2.1
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling miniz_oxide v0.1.3
[INFO] [stderr]    Compiling term v0.5.1
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling regex-syntax v0.6.1
[INFO] [stderr]    Compiling chacha20-poly1305-aead v0.1.2
[INFO] [stderr]    Compiling colored v1.6.0
[INFO] [stderr]    Compiling blake2-rfc v0.2.18
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling msdos_time v0.1.6
[INFO] [stderr]    Compiling cookie v0.10.1
[INFO] [stderr]    Compiling bytes v0.4.8
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.3
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling twoway v0.1.8
[INFO] [stderr]    Compiling rustc_version v0.2.2
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling buf_redux v0.6.3
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling tar v0.4.15
[INFO] [stderr]    Compiling mio v0.6.14
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling tokio-executor v0.1.2
[INFO] [stderr]    Compiling tokio-service v0.1.0
[INFO] [stderr]    Compiling tokio-timer v0.1.2
[INFO] [stderr]    Compiling url v1.7.0
[INFO] [stderr]    Compiling serde_json v1.0.22
[INFO] [stderr]    Compiling toml v0.4.6
[INFO] [stderr]    Compiling uuid v0.6.5
[INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.7.0/src/form_urlencoded.rs:261:40
[INFO] [stderr]     |
[INFO] [stderr] 259 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] 260 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stderr] 261 |     fn finish(self) -> &'a mut ::Url { self.url }
[INFO] [stderr]     |                                        ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait
[INFO] [stderr]     |                                        |
[INFO] [stderr]     |                                        returning this value requires that `*self.url` is borrowed for `'a`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling crossbeam-deque v0.3.1
[INFO] [stderr]    Compiling tokio-io v0.1.6
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]    Compiling snow v0.1.9
[INFO] [stderr]    Compiling phf_shared v0.7.22
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling tokio-timer v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling chrono v0.4.2
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling hyper v0.10.13
[INFO] [stderr]    Compiling tokio-threadpool v0.1.4
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling tokio-reactor v0.1.2
[INFO] [stderr]    Compiling phf_generator v0.7.22
[INFO] [stderr]    Compiling phf v0.7.22
[INFO] [stderr]    Compiling rayon v1.0.1
[INFO] [stderr]    Compiling ctrlc v3.1.1
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling tokio-fs v0.1.1
[INFO] [stderr]    Compiling tokio-tcp v0.1.0
[INFO] [stderr]    Compiling tokio-udp v0.1.0
[INFO] [stderr]    Compiling phf_codegen v0.7.22
[INFO] [stderr]    Compiling exonum_profiler v0.1.2
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling tokio v0.1.7
[INFO] [stderr]    Compiling serde_derive v1.0.66
[INFO] [stderr]    Compiling mime_guess v1.8.4
[INFO] [stderr]    Compiling rust_decimal v0.9.0
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling multipart v0.13.6
[INFO] [stderr]    Compiling iron v0.6.0
[INFO] [stderr]    Compiling miniz_oxide_c_api v0.1.3
[INFO] [stderr]    Compiling bzip2-sys v0.1.6
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]    Compiling exonum_librocksdb-sys v0.5.4
[INFO] [stderr]    Compiling tokio-retry v0.1.1
[INFO] [stderr]    Compiling persistent v0.4.0
[INFO] [stderr]    Compiling mount v0.4.0
[INFO] [stderr]    Compiling iron-cors v0.7.0
[INFO] [stderr]    Compiling router v0.6.0
[INFO] [stderr]    Compiling env_logger v0.5.10
[INFO] [stderr]    Compiling bodyparser v0.8.0
[INFO] [stderr] error: failed to run custom build command for `exonum_librocksdb-sys v0.5.4`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/exonum_librocksdb-sys-dcfac8216f1e7156/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at '"git" "clone" "https://github.com/google/snappy.git"
[INFO] [stderr] 
[INFO] [stderr] fatal: could not create work tree dir 'snappy': Read-only file system
[INFO] [stderr] 
[INFO] [stderr] ', /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/exonum_librocksdb-sys-0.5.4/build.rs:176:9
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x56442fbe314b - backtrace::backtrace::libunwind::trace::hfe5db90796807973
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x56442fbe314b - backtrace::backtrace::trace_unsynchronized::h34b865a835594335
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x56442fbe314b - std::sys_common::backtrace::_print::h527254ae44989167
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x56442fbe314b - std::sys_common::backtrace::print::he85dd5ddddf46503
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x56442fbe314b - std::panicking::default_hook::{{closure}}::h847a2eb38b396f14
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x56442fbe2e27 - std::panicking::default_hook::h2ca0f9a30a0e206b
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x56442fbe38c0 - std::panicking::rust_panic_with_hook::hffcefc09751839d1
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x56442fbe3442 - std::panicking::continue_panic_fmt::hc0f142c930c846fc
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]    8:     0x56442fbe338f - std::panicking::begin_panic_fmt::ha6acf0ffd6d7f80d
[INFO] [stderr]                                at src/libstd/panicking.rs:339
[INFO] [stderr]    9:     0x56442facc019 - build_script_build::get_sources::h2cd6db1027ddd899
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/exonum_librocksdb-sys-0.5.4/build.rs:176
[INFO] [stderr]   10:     0x56442facc794 - build_script_build::main::h0e28fe29380e3544
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/exonum_librocksdb-sys-0.5.4/build.rs:212
[INFO] [stderr]   11:     0x56442facf110 - std::rt::lang_start::{{closure}}::h6816ab4a4d7caf7c
[INFO] [stderr]                                at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/rt.rs:64
[INFO] [stderr]   12:     0x56442fbe32c3 - std::rt::lang_start_internal::{{closure}}::h447d8812e3ee306d
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   13:     0x56442fbe32c3 - std::panicking::try::do_call::h4a61cb372364c745
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   14:     0x56442fbeba3a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stderr]   15:     0x56442fbe3e8d - std::panicking::try::hdf71f938885bca42
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   16:     0x56442fbe3e8d - std::panic::catch_unwind::h7e85dbf162b1611a
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   17:     0x56442fbe3e8d - std::rt::lang_start_internal::h1e06cc26b9fc25ea
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   18:     0x56442facf0e9 - std::rt::lang_start::h9450d9ba40219920
[INFO] [stderr]                                at /rustc/eae3437dfe991621e8afdc82734f4a172d7ddf9b/src/libstd/rt.rs:64
[INFO] [stderr]   19:     0x56442facc88a - main
[INFO] [stderr]   20:     0x7f8507ffc2e1 - __libc_start_main
[INFO] [stderr]   21:     0x56442fac9e3a - _start
[INFO] [stderr]   22:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "6dec7e6bbd4847865391ec0b5147f4a6b66887cde6a9addddb5fab73f2008ed6"`
[INFO] running `"docker" "rm" "-f" "6dec7e6bbd4847865391ec0b5147f4a6b66887cde6a9addddb5fab73f2008ed6"`
[INFO] [stdout] 6dec7e6bbd4847865391ec0b5147f4a6b66887cde6a9addddb5fab73f2008ed6