[INFO] updating cached repository https://github.com/leekt216/rust_folding_blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c615aba8b3fc2eb0b2681691c9d23f8f315bb640
[INFO] checking leekt216/rust_folding_blockchain against try#85cc1486e1f000dce4bb8e1b3cfab2b654b102a8 for pr-73323
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleekt216%2Frust_folding_blockchain" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/leekt216/rust_folding_blockchain on toolchain 85cc1486e1f000dce4bb8e1b3cfab2b654b102a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/leekt216/rust_folding_blockchain
[INFO] finished tweaking git repo https://github.com/leekt216/rust_folding_blockchain
[INFO] tweaked toml for git repo https://github.com/leekt216/rust_folding_blockchain written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/leekt216/rust_folding_blockchain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6308f551a29558e2ac8b81097c83ef00d5476211b4a3ab88661df62f31dee95f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6308f551a29558e2ac8b81097c83ef00d5476211b4a3ab88661df62f31dee95f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6308f551a29558e2ac8b81097c83ef00d5476211b4a3ab88661df62f31dee95f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6308f551a29558e2ac8b81097c83ef00d5476211b4a3ab88661df62f31dee95f", kill_on_drop: false }`
[INFO] [stdout] 6308f551a29558e2ac8b81097c83ef00d5476211b4a3ab88661df62f31dee95f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3bf2469fae55f85f4f7930b68aa151fde965f5252a0084253963343eb1a3d4b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f3bf2469fae55f85f4f7930b68aa151fde965f5252a0084253963343eb1a3d4b", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling leveldb-sys v2.0.1
[INFO] [stderr]     Checking db-key v0.0.5
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling quote v0.6.11
[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/rustwide/target/debug/build/leveldb-sys-213d305e042aa9af/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   [build] Started
[INFO] [stderr]   [snappy] Cleaning
[INFO] [stderr]   make: Entering directory '/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.1/deps/snappy-1.1.2'
[INFO] [stderr]   make: Leaving directory '/opt/rustwide/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/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.1/deps/snappy-1.1.2'
[INFO] [stderr]   make: Leaving directory '/opt/rustwide/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 2171: config.log: Read-only file system
[INFO] [stderr]   ./configure: line 2181: 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', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.1/src/build.rs:46:14
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x556324e45ae5 - backtrace::backtrace::libunwind::trace::h34afbfad7fd770fc
[INFO] [stderr]                                  at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]      1:     0x556324e45ae5 - backtrace::backtrace::trace_unsynchronized::h460d522b1619a600
[INFO] [stderr]                                  at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x556324e45ae5 - std::sys_common::backtrace::_print_fmt::ha45fac10086813b4
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]      3:     0x556324e45ae5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hde84f63fcfd0e6de
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]      4:     0x556324e68b9c - core::fmt::write::h540ac4a6a1232abc
[INFO] [stderr]                                  at src/libcore/fmt/mod.rs:1076
[INFO] [stderr]      5:     0x556324e43b52 - std::io::Write::write_fmt::hc344eafd6e850b4d
[INFO] [stderr]                                  at src/libstd/io/mod.rs:1537
[INFO] [stderr]      6:     0x556324e47fd0 - std::sys_common::backtrace::_print::h4db88ff15cb5d61d
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]      7:     0x556324e47fd0 - std::sys_common::backtrace::print::h5fc39e1b1f610bd3
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]      8:     0x556324e47fd0 - std::panicking::default_hook::{{closure}}::h59e55edacb1d974a
[INFO] [stderr]                                  at src/libstd/panicking.rs:198
[INFO] [stderr]      9:     0x556324e47d1c - std::panicking::default_hook::heee4c8016dfbf328
[INFO] [stderr]                                  at src/libstd/panicking.rs:217
[INFO] [stderr]     10:     0x556324e48613 - std::panicking::rust_panic_with_hook::h8405b6301c79fb5a
[INFO] [stderr]                                  at src/libstd/panicking.rs:526
[INFO] [stderr]     11:     0x556324e4820b - rust_begin_unwind
[INFO] [stderr]                                  at src/libstd/panicking.rs:437
[INFO] [stderr]     12:     0x556324e67fa1 - core::panicking::panic_fmt::h78830ea6a34e7206
[INFO] [stderr]                                  at src/libcore/panicking.rs:85
[INFO] [stderr]     13:     0x556324e67d33 - core::option::expect_failed::hfc0519cb1ecb957f
[INFO] [stderr]                                  at src/libcore/option.rs:1261
[INFO] [stderr]     14:     0x556324e2c84d - core::option::Option<T>::expect::h3f287e17361c09a3
[INFO] [stderr]                                  at /rustc/85cc1486e1f000dce4bb8e1b3cfab2b654b102a8/src/libcore/option.rs:344
[INFO] [stderr]     15:     0x556324e1d4ea - build_script_build::build_snappy::h40d51bae38ae9a55
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.1/src/build.rs:46
[INFO] [stderr]     16:     0x556324e1eb85 - build_script_build::main::hca4eabb9b003ec08
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.1/src/build.rs:125
[INFO] [stderr]     17:     0x556324e26dfb - std::rt::lang_start::{{closure}}::hac37c04283918d1d
[INFO] [stderr]                                  at /rustc/85cc1486e1f000dce4bb8e1b3cfab2b654b102a8/src/libstd/rt.rs:67
[INFO] [stderr]     18:     0x556324e489e3 - std::rt::lang_start_internal::{{closure}}::h7cea099ad4edf1eb
[INFO] [stderr]                                  at src/libstd/rt.rs:52
[INFO] [stderr]     19:     0x556324e489e3 - std::panicking::try::do_call::h42d93372c44025d2
[INFO] [stderr]                                  at src/libstd/panicking.rs:348
[INFO] [stderr]     20:     0x556324e489e3 - std::panicking::try::hb47a4182362d3341
[INFO] [stderr]                                  at src/libstd/panicking.rs:325
[INFO] [stderr]     21:     0x556324e489e3 - std::panic::catch_unwind::h2afcfbf3125915b4
[INFO] [stderr]                                  at src/libstd/panic.rs:394
[INFO] [stderr]     22:     0x556324e489e3 - std::rt::lang_start_internal::h4f696727fe904f48
[INFO] [stderr]                                  at src/libstd/rt.rs:51
[INFO] [stderr]     23:     0x556324e26dd7 - std::rt::lang_start::hc0a762094c5ec990
[INFO] [stderr]                                  at /rustc/85cc1486e1f000dce4bb8e1b3cfab2b654b102a8/src/libstd/rt.rs:67
[INFO] [stderr]     24:     0x556324e1fa4a - main
[INFO] [stderr]     25:     0x7f49330830b3 - __libc_start_main
[INFO] [stderr]     26:     0x556324e1819e - _start
[INFO] [stderr]     27:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f3bf2469fae55f85f4f7930b68aa151fde965f5252a0084253963343eb1a3d4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3bf2469fae55f85f4f7930b68aa151fde965f5252a0084253963343eb1a3d4b", kill_on_drop: false }`
[INFO] [stdout] f3bf2469fae55f85f4f7930b68aa151fde965f5252a0084253963343eb1a3d4b