[INFO] updating cached repository https://github.com/sthorpe/MerkleMountainRange
[INFO] running `"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"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 97567c73a1de8d30710201261b1927b5c0e1ac0e
[INFO] checking sthorpe/MerkleMountainRange against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsthorpe%2FMerkleMountainRange" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sthorpe/MerkleMountainRange on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sthorpe/MerkleMountainRange
[INFO] finished tweaking git repo https://github.com/sthorpe/MerkleMountainRange
[INFO] tweaked toml for git repo https://github.com/sthorpe/MerkleMountainRange written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/sthorpe/MerkleMountainRange already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9fc4fe8c27b5a05956ebb739d3d6ecb65973dbf560ae2b79e6e515ea58170b08
[INFO] running `"docker" "start" "-a" "9fc4fe8c27b5a05956ebb739d3d6ecb65973dbf560ae2b79e6e515ea58170b08"`
[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/rustwide/target/debug/build/leveldb-sys-245fd821afac8617/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-2.0.4/deps/snappy-1.1.2'
[INFO] [stderr] make: Leaving directory '/opt/rustwide/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/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.4/deps/snappy-1.1.2'
[INFO] [stderr] make: Leaving directory '/opt/rustwide/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', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.4/src/build.rs:47:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x556947b2e1e4 - backtrace::backtrace::libunwind::trace::h9e598fcb10d5c4f5
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x556947b2e1e4 - backtrace::backtrace::trace_unsynchronized::hbfbd58fbb4a2603e
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x556947b2e1e4 - std::sys_common::backtrace::_print_fmt::hacb596a8013761df
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x556947b2e1e4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::ha1ba73c9085723eb
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x556947b5228c - core::fmt::write::hb4ac1e8a8c800611
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stderr]    5:     0x556947b2c393 - std::io::Write::write_fmt::ha413e6029f4d499f
[INFO] [stderr]                                at src/libstd/io/mod.rs:1504
[INFO] [stderr]    6:     0x556947b30835 - std::sys_common::backtrace::_print::h5afa8b3832cd03b8
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x556947b30835 - std::sys_common::backtrace::print::h49229e3486b70f83
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x556947b30835 - std::panicking::default_hook::{{closure}}::hcfefd5f4943f3aa9
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x556947b30572 - std::panicking::default_hook::h4c2b6d8d034c53de
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x556947b30e42 - std::panicking::rust_panic_with_hook::hf8cee70c0118d2cc
[INFO] [stderr]                                at src/libstd/panicking.rs:511
[INFO] [stderr]   11:     0x556947b30a2b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:419
[INFO] [stderr]   12:     0x556947b51671 - core::panicking::panic_fmt::h01af33c385562c2b
[INFO] [stderr]                                at src/libcore/panicking.rs:111
[INFO] [stderr]   13:     0x556947b51403 - core::option::expect_failed::hd396fca6b2983524
[INFO] [stderr]                                at src/libcore/option.rs:1260
[INFO] [stderr]   14:     0x556947b16ac9 - core::option::Option<T>::expect::h9ea30755b8e9ee2d
[INFO] [stderr]                                at /rustc/209b2be09fcaff937480d1fbbe8b31646e361c7a/src/libcore/option.rs:347
[INFO] [stderr]   15:     0x556947b13004 - build_script_build::build_snappy::hb5787268861cd68b
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.4/src/build.rs:47
[INFO] [stderr]   16:     0x556947b147c8 - build_script_build::main::h436eb48b840038ef
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.4/src/build.rs:129
[INFO] [stderr]   17:     0x556947b102ab - std::rt::lang_start::{{closure}}::he389648647ed32bf
[INFO] [stderr]                                at /rustc/209b2be09fcaff937480d1fbbe8b31646e361c7a/src/libstd/rt.rs:67
[INFO] [stderr]   18:     0x556947b31288 - std::rt::lang_start_internal::{{closure}}::h4c4631d379953dd0
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   19:     0x556947b31288 - std::panicking::try::do_call::hc26b3db2421dedbb
[INFO] [stderr]                                at src/libstd/panicking.rs:331
[INFO] [stderr]   20:     0x556947b31288 - std::panicking::try::h4da6835c8705b8a7
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   21:     0x556947b31288 - std::panic::catch_unwind::h02aff520273fa6b1
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   22:     0x556947b31288 - std::rt::lang_start_internal::he0572ca212cb5ef4
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   23:     0x556947b10287 - std::rt::lang_start::h035945b0e2e6f265
[INFO] [stderr]                                at /rustc/209b2be09fcaff937480d1fbbe8b31646e361c7a/src/libstd/rt.rs:67
[INFO] [stderr]   24:     0x556947b1581a - main
[INFO] [stderr]   25:     0x7fbd24a19b97 - __libc_start_main
[INFO] [stderr]   26:     0x556947aff0ba - _start
[INFO] [stderr]   27:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "9fc4fe8c27b5a05956ebb739d3d6ecb65973dbf560ae2b79e6e515ea58170b08"`
[INFO] running `"docker" "rm" "-f" "9fc4fe8c27b5a05956ebb739d3d6ecb65973dbf560ae2b79e6e515ea58170b08"`
[INFO] [stdout] 9fc4fe8c27b5a05956ebb739d3d6ecb65973dbf560ae2b79e6e515ea58170b08
