[INFO] updating cached repository aschuhardt/mud-server
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/aschuhardt/mud-server
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/aschuhardt/mud-server" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/aschuhardt/mud-server"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/aschuhardt/mud-server'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aschuhardt/mud-server" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/aschuhardt/mud-server"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/aschuhardt/mud-server'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 08cb1e7a7246751a47b4c9dde4d14bdfb0f0b2fb
[INFO] sha for GitHub repo aschuhardt/mud-server: 08cb1e7a7246751a47b4c9dde4d14bdfb0f0b2fb
[INFO] validating manifest of aschuhardt/mud-server on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of aschuhardt/mud-server on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing aschuhardt/mud-server
[INFO] finished frobbing aschuhardt/mud-server
[INFO] frobbed toml for aschuhardt/mud-server written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/aschuhardt/mud-server/Cargo.toml
[INFO] started frobbing aschuhardt/mud-server
[INFO] finished frobbing aschuhardt/mud-server
[INFO] frobbed toml for aschuhardt/mud-server written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/aschuhardt/mud-server/Cargo.toml
[INFO] crate aschuhardt/mud-server already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating git repository `https://github.com/aschuhardt/mud_server_session.git`
[INFO] [stderr]     Updating git repository `https://github.com/aschuhardt/mud_engine.git`
[INFO] [stderr]     Updating git repository `https://github.com/aschuhardt/mud_request.git`
[INFO] [stderr]     Updating git repository `https://github.com/aschuhardt/mud_response.git`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/aschuhardt/mud-server/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/aschuhardt/mud_server_session.git`
[INFO] [stderr]     Updating git repository `https://github.com/aschuhardt/mud_engine.git`
[INFO] [stderr]     Updating git repository `https://github.com/aschuhardt/mud_request.git`
[INFO] [stderr]     Updating git repository `https://github.com/aschuhardt/mud_response.git`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/aschuhardt/mud_server_session.git`
[INFO] [stderr]     Updating git repository `https://github.com/aschuhardt/mud_engine.git`
[INFO] [stderr]     Updating git repository `https://github.com/aschuhardt/mud_request.git`
[INFO] [stderr]     Updating git repository `https://github.com/aschuhardt/mud_response.git`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking aschuhardt/mud-server against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-3/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/aschuhardt/mud-server:/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d3f865ffdd22fc5c9455440c915d7b80172101e2e2d4436c76b6217adfd4192d
[INFO] running `"docker" "start" "-a" "d3f865ffdd22fc5c9455440c915d7b80172101e2e2d4436c76b6217adfd4192d"`
[INFO] [stderr]    Compiling mud_server_session v0.1.0 (https://github.com/aschuhardt/mud_server_session.git#3ba4caf2)
[INFO] [stderr]    Compiling dungeon_server v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Checking mud_response v0.1.0 (https://github.com/aschuhardt/mud_response.git#79bf7b8b)
[INFO] [stderr]     Checking uuid v0.2.3
[INFO] [stderr]     Checking bincode v0.6.1
[INFO] [stderr]     Checking mud_request v0.1.0 (https://github.com/aschuhardt/mud_request.git#841a24d6)
[INFO] [stderr] error: failed to run custom build command for `dungeon_server v0.1.0 (/opt/crater/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/dungeon_server-c6438f6a7c218df2/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'couldn't create config/config.json: other os error', build.rs:29:18
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x561e869a0d3b - backtrace::backtrace::libunwind::trace::h99e6362fdb92a8eb
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x561e869a0d3b - backtrace::backtrace::trace_unsynchronized::hb03857eb223d1e1b
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x561e869a0d3b - std::sys_common::backtrace::_print::hc504093b15dd6a49
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x561e869a0d3b - std::sys_common::backtrace::print::h74592d8df46164e6
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x561e869a0d3b - std::panicking::default_hook::{{closure}}::h148953d9747d04f4
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x561e869a0a16 - std::panicking::default_hook::h72a253311e200c7c
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x561e869a13fd - std::panicking::rust_panic_with_hook::h625fcf59e672b6a0
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x561e869a0f82 - std::panicking::continue_panic_fmt::hb865580971245aec
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]    8:     0x561e869a0ecf - std::panicking::begin_panic_fmt::h3b79b50d780fddc6
[INFO] [stderr]                                at src/libstd/panicking.rs:339
[INFO] [stderr]    9:     0x561e86997583 - build_script_build::create_config::hf4a5c095eee3f15b
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:29
[INFO] [stderr]   10:     0x561e86996f46 - build_script_build::main::hc32f67b8364cc231
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:8
[INFO] [stderr]   11:     0x561e86997f50 - std::rt::lang_start::{{closure}}::hbc2d0869a29675c8
[INFO] [stderr]                                at /rustc/c43d03a19f326f4a323569328cc501e86eb6d22e/src/libstd/rt.rs:64
[INFO] [stderr]   12:     0x561e869a0e53 - std::rt::lang_start_internal::{{closure}}::h5b4ccd53e4167b89
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   13:     0x561e869a0e53 - std::panicking::try::do_call::h85f9b79f07affa28
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   14:     0x561e869a2f8a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   15:     0x561e869a190d - std::panicking::try::h0463127fe79abe73
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   16:     0x561e869a190d - std::panic::catch_unwind::h846bfd7d9d99e56b
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   17:     0x561e869a190d - std::rt::lang_start_internal::h0a72d627fb2e90ec
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   18:     0x561e86997f29 - std::rt::lang_start::h3b565220b60e0e93
[INFO] [stderr]                                at /rustc/c43d03a19f326f4a323569328cc501e86eb6d22e/src/libstd/rt.rs:64
[INFO] [stderr]   19:     0x561e869979fa - main
[INFO] [stderr]   20:     0x7f153ff492e1 - __libc_start_main
[INFO] [stderr]   21:     0x561e86996e3a - _start
[INFO] [stderr]   22:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: failed to run custom build command for `mud_server_session v0.1.0 (https://github.com/aschuhardt/mud_server_session.git#3ba4caf2)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/mud_server_session-2a89abc266928319/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'couldn't create config/config.json: other os error', /opt/crater/cargo-home/git/checkouts/mud_server_session-0d71cc0219e3ede4/3ba4caf/build.rs:29:18
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55768f5d9d3b - backtrace::backtrace::libunwind::trace::h99e6362fdb92a8eb
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55768f5d9d3b - backtrace::backtrace::trace_unsynchronized::hb03857eb223d1e1b
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55768f5d9d3b - std::sys_common::backtrace::_print::hc504093b15dd6a49
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x55768f5d9d3b - std::sys_common::backtrace::print::h74592d8df46164e6
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x55768f5d9d3b - std::panicking::default_hook::{{closure}}::h148953d9747d04f4
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x55768f5d9a16 - std::panicking::default_hook::h72a253311e200c7c
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x55768f5da3fd - std::panicking::rust_panic_with_hook::h625fcf59e672b6a0
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x55768f5d9f82 - std::panicking::continue_panic_fmt::hb865580971245aec
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]    8:     0x55768f5d9ecf - std::panicking::begin_panic_fmt::h3b79b50d780fddc6
[INFO] [stderr]                                at src/libstd/panicking.rs:339
[INFO] [stderr]    9:     0x55768f5d0583 - build_script_build::create_config::h6a601ba050567489
[INFO] [stderr]                                at /opt/crater/cargo-home/git/checkouts/mud_server_session-0d71cc0219e3ede4/3ba4caf/build.rs:29
[INFO] [stderr]   10:     0x55768f5cff46 - build_script_build::main::h7426cc5e5a8d3d89
[INFO] [stderr]                                at /opt/crater/cargo-home/git/checkouts/mud_server_session-0d71cc0219e3ede4/3ba4caf/build.rs:8
[INFO] [stderr]   11:     0x55768f5d0f50 - std::rt::lang_start::{{closure}}::hdc31e5aaee0849c6
[INFO] [stderr]                                at /rustc/c43d03a19f326f4a323569328cc501e86eb6d22e/src/libstd/rt.rs:64
[INFO] [stderr]   12:     0x55768f5d9e53 - std::rt::lang_start_internal::{{closure}}::h5b4ccd53e4167b89
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   13:     0x55768f5d9e53 - std::panicking::try::do_call::h85f9b79f07affa28
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   14:     0x55768f5dbf8a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   15:     0x55768f5da90d - std::panicking::try::h0463127fe79abe73
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   16:     0x55768f5da90d - std::panic::catch_unwind::h846bfd7d9d99e56b
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   17:     0x55768f5da90d - std::rt::lang_start_internal::h0a72d627fb2e90ec
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   18:     0x55768f5d0f29 - std::rt::lang_start::h061ed16d369b2fc9
[INFO] [stderr]                                at /rustc/c43d03a19f326f4a323569328cc501e86eb6d22e/src/libstd/rt.rs:64
[INFO] [stderr]   19:     0x55768f5d09fa - main
[INFO] [stderr]   20:     0x7fe679e712e1 - __libc_start_main
[INFO] [stderr]   21:     0x55768f5cfe3a - _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" "d3f865ffdd22fc5c9455440c915d7b80172101e2e2d4436c76b6217adfd4192d"`
[INFO] running `"docker" "rm" "-f" "d3f865ffdd22fc5c9455440c915d7b80172101e2e2d4436c76b6217adfd4192d"`
[INFO] [stdout] d3f865ffdd22fc5c9455440c915d7b80172101e2e2d4436c76b6217adfd4192d