[INFO] crate leveldb 0.8.4 is already in cache
[INFO] extracting crate leveldb 0.8.4 into work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/leveldb/0.8.4
[INFO] extracting crate leveldb 0.8.4 into work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/leveldb/0.8.4
[INFO] validating manifest of leveldb-0.8.4 on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of leveldb-0.8.4 on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing leveldb-0.8.4
[INFO] removed 1 missing tests
[INFO] finished frobbing leveldb-0.8.4
[INFO] frobbed toml for leveldb-0.8.4 written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/leveldb/0.8.4/Cargo.toml
[INFO] started frobbing leveldb-0.8.4
[INFO] removed 1 missing tests
[INFO] finished frobbing leveldb-0.8.4
[INFO] frobbed toml for leveldb-0.8.4 written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/leveldb/0.8.4/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking leveldb-0.8.4 against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-5/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/leveldb/0.8.4:/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3074bdb9eada963cbd7e6f4a79d25ade93fcfadde846bd1a63c87172b813a5f3
[INFO] running `"docker" "start" "-a" "3074bdb9eada963cbd7e6f4a79d25ade93fcfadde846bd1a63c87172b813a5f3"`
[INFO] [stderr] warning: An explicit [[test]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other test targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a test target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/crater/workdir/tests/utils.rs
[INFO] [stderr] * /opt/crater/workdir/tests/management.rs
[INFO] [stderr] * /opt/crater/workdir/tests/compaction.rs
[INFO] [stderr] * /opt/crater/workdir/tests/binary.rs
[INFO] [stderr] * /opt/crater/workdir/tests/concurrent_access.rs
[INFO] [stderr] * /opt/crater/workdir/tests/database.rs
[INFO] [stderr] * /opt/crater/workdir/tests/iterator.rs
[INFO] [stderr] * /opt/crater/workdir/tests/snapshots.rs
[INFO] [stderr] * /opt/crater/workdir/tests/writebatch.rs
[INFO] [stderr] * /opt/crater/workdir/tests/comparator.rs
[INFO] [stderr] * /opt/crater/workdir/tests/tests.rs
[INFO] [stderr] * /opt/crater/workdir/tests/cache.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a test target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autotests = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr]    Compiling leveldb-sys v2.0.4
[INFO] [stderr]     Checking db-key v0.0.5
[INFO] [stderr] error: failed to run custom build command for `leveldb-sys v2.0.4`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/leveldb-sys-86094da183f5b8ce/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] [build] Started
[INFO] [stderr] [snappy] Cleaning
[INFO] [stderr] make: Entering directory '/opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.4/deps/snappy-1.1.2'
[INFO] [stderr] make: Leaving directory '/opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.4/deps/snappy-1.1.2'
[INFO] [stderr] [snappy] Configuring
[INFO] [stderr] [snappy] Building
[INFO] [stderr] make: Entering directory '/opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.4/deps/snappy-1.1.2'
[INFO] [stderr] make: Leaving directory '/opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.4/deps/snappy-1.1.2'
[INFO] [stderr] [build] Copying output files
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] make: *** No rule to make target 'distclean'.  Stop.
[INFO] [stderr] ./configure: line 2175: config.log: Read-only file system
[INFO] [stderr] ./configure: line 2185: config.log: Read-only file system
[INFO] [stderr] make: *** No targets specified and no makefile found.  Stop.
[INFO] [stderr] thread 'main' panicked at 'copy of output files failed', src/libcore/option.rs:1166:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55968b16e1ab - backtrace::backtrace::libunwind::trace::h5d27dcba3b250cfe
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55968b16e1ab - backtrace::backtrace::trace_unsynchronized::h239341a8b1cadbab
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55968b16e1ab - std::sys_common::backtrace::_print::hb0e5dd39180a1838
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x55968b16e1ab - std::sys_common::backtrace::print::h9b385b2285f057b8
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x55968b16e1ab - std::panicking::default_hook::{{closure}}::he3310a15a78966b4
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x55968b16de86 - std::panicking::default_hook::h2986f418df62eff4
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x55968b16e86d - std::panicking::rust_panic_with_hook::h15065386631d2a9d
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x55968b16e3f2 - std::panicking::continue_panic_fmt::h5e7761875fda3864
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]    8:     0x55968b16e2d6 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:311
[INFO] [stderr]    9:     0x55968b1883fd - core::panicking::panic_fmt::ha57541b4d360b196
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   10:     0x55968b188467 - core::option::expect_failed::hd0b865765f7e1444
[INFO] [stderr]                                at src/libcore/option.rs:1166
[INFO] [stderr]   11:     0x55968b153875 - core::option::Option<T>::expect::h6ce5a55dddc23fe3
[INFO] [stderr]                                at /rustc/452087b4bf18cece2d52d7cd8c9147195e5404bf/src/libcore/option.rs:345
[INFO] [stderr]   12:     0x55968b14f670 - build_script_build::build_snappy::h3774c37f1d5f4c7b
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.4/src/build.rs:47
[INFO] [stderr]   13:     0x55968b150d01 - build_script_build::main::hc18b57b842af0048
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.4/src/build.rs:129
[INFO] [stderr]   14:     0x55968b156e40 - std::rt::lang_start::{{closure}}::hdb526da1fa238854
[INFO] [stderr]                                at /rustc/452087b4bf18cece2d52d7cd8c9147195e5404bf/src/libstd/rt.rs:64
[INFO] [stderr]   15:     0x55968b16e2c3 - std::rt::lang_start_internal::{{closure}}::hbf4603a1e6e1424d
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   16:     0x55968b16e2c3 - std::panicking::try::do_call::h7642e0de797eeae0
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   17:     0x55968b17571a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   18:     0x55968b16ed7d - std::panicking::try::h17f145530f8b5a3f
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   19:     0x55968b16ed7d - std::panic::catch_unwind::hcee1b9b07ea0f9dc
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   20:     0x55968b16ed7d - std::rt::lang_start_internal::h82d44298f58b2cfd
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   21:     0x55968b156e19 - std::rt::lang_start::h7b7831feb4d27e23
[INFO] [stderr]                                at /rustc/452087b4bf18cece2d52d7cd8c9147195e5404bf/src/libstd/rt.rs:64
[INFO] [stderr]   22:     0x55968b151c4a - main
[INFO] [stderr]   23:     0x7f262355a2e1 - __libc_start_main
[INFO] [stderr]   24:     0x55968b1318ba - _start
[INFO] [stderr]   25:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "3074bdb9eada963cbd7e6f4a79d25ade93fcfadde846bd1a63c87172b813a5f3"`
[INFO] running `"docker" "rm" "-f" "3074bdb9eada963cbd7e6f4a79d25ade93fcfadde846bd1a63c87172b813a5f3"`
[INFO] [stdout] 3074bdb9eada963cbd7e6f4a79d25ade93fcfadde846bd1a63c87172b813a5f3