[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-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/aschuhardt/mud-server"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/aschuhardt/mud-server'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aschuhardt/mud-server" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/aschuhardt/mud-server"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/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#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of aschuhardt/mud-server 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 aschuhardt/mud-server
[INFO] finished frobbing aschuhardt/mud-server
[INFO] frobbed toml for aschuhardt/mud-server written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/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-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-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-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-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" "+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 aschuhardt/mud-server against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-1/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 67d481b5bebf1def87a3c37d2e8dd6969630fa02c9c565a7f733f75e0f7502b0
[INFO] running `"docker" "start" "-a" "67d481b5bebf1def87a3c37d2e8dd6969630fa02c9c565a7f733f75e0f7502b0"`
[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] 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-ee5205241bca5cb9/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:     0x563686a72d2b - 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:     0x563686a72d2b - 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:     0x563686a72d2b - std::sys_common::backtrace::_print::hb0e5dd39180a1838
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x563686a72d2b - std::sys_common::backtrace::print::h9b385b2285f057b8
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x563686a72d2b - std::panicking::default_hook::{{closure}}::he3310a15a78966b4
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x563686a72a06 - std::panicking::default_hook::h2986f418df62eff4
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x563686a733ed - std::panicking::rust_panic_with_hook::h15065386631d2a9d
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x563686a72f72 - std::panicking::continue_panic_fmt::h5e7761875fda3864
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]    8:     0x563686a72ebf - std::panicking::begin_panic_fmt::h23e4c9022d6fc089
[INFO] [stderr]                                at src/libstd/panicking.rs:339
[INFO] [stderr]    9:     0x563686a69583 - build_script_build::create_config::h03e9a2c9f7f67a0c
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:29
[INFO] [stderr]   10:     0x563686a68f46 - build_script_build::main::h4ca8e65e3e8d3c06
[INFO] [stderr]                                at /opt/crater/workdir/build.rs:8
[INFO] [stderr]   11:     0x563686a6a220 - std::rt::lang_start::{{closure}}::h40789a73e1a24d1e
[INFO] [stderr]                                at /rustc/452087b4bf18cece2d52d7cd8c9147195e5404bf/src/libstd/rt.rs:64
[INFO] [stderr]   12:     0x563686a72e43 - std::rt::lang_start_internal::{{closure}}::hbf4603a1e6e1424d
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   13:     0x563686a72e43 - std::panicking::try::do_call::h7642e0de797eeae0
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   14:     0x563686a74f7a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   15:     0x563686a738fd - std::panicking::try::h17f145530f8b5a3f
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   16:     0x563686a738fd - std::panic::catch_unwind::hcee1b9b07ea0f9dc
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   17:     0x563686a738fd - std::rt::lang_start_internal::h82d44298f58b2cfd
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   18:     0x563686a6a1f9 - std::rt::lang_start::h1cefb54fef9c4a12
[INFO] [stderr]                                at /rustc/452087b4bf18cece2d52d7cd8c9147195e5404bf/src/libstd/rt.rs:64
[INFO] [stderr]   19:     0x563686a699fa - main
[INFO] [stderr]   20:     0x7fc1ccbb02e1 - __libc_start_main
[INFO] [stderr]   21:     0x563686a68e3a - _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" "67d481b5bebf1def87a3c37d2e8dd6969630fa02c9c565a7f733f75e0f7502b0"`
[INFO] running `"docker" "rm" "-f" "67d481b5bebf1def87a3c37d2e8dd6969630fa02c9c565a7f733f75e0f7502b0"`
[INFO] [stdout] 67d481b5bebf1def87a3c37d2e8dd6969630fa02c9c565a7f733f75e0f7502b0