[INFO] updating cached repository leekt216/rust_folding_blockchain
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/leekt216/rust_folding_blockchain
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/leekt216/rust_folding_blockchain" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/leekt216/rust_folding_blockchain"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/leekt216/rust_folding_blockchain'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/leekt216/rust_folding_blockchain" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/leekt216/rust_folding_blockchain"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/leekt216/rust_folding_blockchain'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c615aba8b3fc2eb0b2681691c9d23f8f315bb640
[INFO] sha for GitHub repo leekt216/rust_folding_blockchain: c615aba8b3fc2eb0b2681691c9d23f8f315bb640
[INFO] validating manifest of leekt216/rust_folding_blockchain on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of leekt216/rust_folding_blockchain on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing leekt216/rust_folding_blockchain
[INFO] finished frobbing leekt216/rust_folding_blockchain
[INFO] frobbed toml for leekt216/rust_folding_blockchain written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/leekt216/rust_folding_blockchain/Cargo.toml
[INFO] started frobbing leekt216/rust_folding_blockchain
[INFO] finished frobbing leekt216/rust_folding_blockchain
[INFO] frobbed toml for leekt216/rust_folding_blockchain written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/leekt216/rust_folding_blockchain/Cargo.toml
[INFO] crate leekt216/rust_folding_blockchain already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking leekt216/rust_folding_blockchain against try#f45cc3094ee337acd688771b9234318046b0572d for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-7/try#f45cc3094ee337acd688771b9234318046b0572d:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/leekt216/rust_folding_blockchain:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2e7cf3a8fa281439f78ea797fae78617d6e588bd3f49a7cd5060a6a340b2ef3d
[INFO] running `"docker" "start" "-a" "2e7cf3a8fa281439f78ea797fae78617d6e588bd3f49a7cd5060a6a340b2ef3d"`
[INFO] [stderr]    Compiling leveldb-sys v2.0.1
[INFO] [stderr]     Checking db-key v0.0.5
[INFO] [stderr] error: failed to run custom build command for `leveldb-sys v2.0.1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/leveldb-sys-b32918ca6102d860/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-2.0.1/deps/snappy-1.1.2'
[INFO] [stderr] make: Leaving directory '/opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.1/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-2.0.1/deps/snappy-1.1.2'
[INFO] [stderr] make: Leaving directory '/opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.1/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:1036:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55eff801dec3 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h767e9d0f82ed3393
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stderr]    1:     0x55eff8019bdb - std::sys_common::backtrace::_print::h4145552665bc19f6
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:71
[INFO] [stderr]    2:     0x55eff801ccb6 - std::panicking::default_hook::{{closure}}::h17338a99c6f1e326
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]                                at src/libstd/panicking.rs:197
[INFO] [stderr]    3:     0x55eff801ca49 - std::panicking::default_hook::hc895198e886bc85d
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    4:     0x55eff801d30f - std::panicking::rust_panic_with_hook::ha35c47b69e688bcb
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    5:     0x55eff801ce91 - std::panicking::continue_panic_fmt::hf977a9a6bddd2a96
[INFO] [stderr]                                at src/libstd/panicking.rs:381
[INFO] [stderr]    6:     0x55eff801cd75 - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:308
[INFO] [stderr]    7:     0x55eff803318c - core::panicking::panic_fmt::he627fcf34c0ff442
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]    8:     0x55eff80331f6 - core::option::expect_failed::h4dd79e9fa20fcdb1
[INFO] [stderr]                                at src/libcore/option.rs:1036
[INFO] [stderr]    9:     0x55eff7ffd8f9 - core::option::Option<T>::expect::h40c1a6705b55b797
[INFO] [stderr]                                at /rustc/f45cc3094ee337acd688771b9234318046b0572d/src/libcore/option.rs:314
[INFO] [stderr]   10:     0x55eff800693f - build_script_build::build_snappy::h91cbdbf51c0da490
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.1/src/build.rs:46
[INFO] [stderr]   11:     0x55eff8007f4c - build_script_build::main::h1687fd72cc2158ed
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.1/src/build.rs:125
[INFO] [stderr]   12:     0x55eff80022bf - std::rt::lang_start::{{closure}}::hce3f6848c00742fc
[INFO] [stderr]                                at /rustc/f45cc3094ee337acd688771b9234318046b0572d/src/libstd/rt.rs:64
[INFO] [stderr]   13:     0x55eff801cd62 - std::panicking::try::do_call::h0f07e8634b6a59ed
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]                                at src/libstd/panicking.rs:293
[INFO] [stderr]   14:     0x55eff80247e9 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   15:     0x55eff801d81c - std::rt::lang_start_internal::h1cf95863d64a76a2
[INFO] [stderr]                                at src/libstd/panicking.rs:272
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   16:     0x55eff8002298 - std::rt::lang_start::h1dd4928aa06a27c8
[INFO] [stderr]                                at /rustc/f45cc3094ee337acd688771b9234318046b0572d/src/libstd/rt.rs:64
[INFO] [stderr]   17:     0x55eff8008d49 - main
[INFO] [stderr]   18:     0x7f155b45f2e0 - __libc_start_main
[INFO] [stderr]   19:     0x55eff7fdfee9 - _start
[INFO] [stderr]   20:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "2e7cf3a8fa281439f78ea797fae78617d6e588bd3f49a7cd5060a6a340b2ef3d"`
[INFO] running `"docker" "rm" "-f" "2e7cf3a8fa281439f78ea797fae78617d6e588bd3f49a7cd5060a6a340b2ef3d"`
[INFO] [stdout] 2e7cf3a8fa281439f78ea797fae78617d6e588bd3f49a7cd5060a6a340b2ef3d