[INFO] crate preferences 1.1.0 is already in cache [INFO] extracting crate preferences 1.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/preferences/1.1.0 [INFO] extracting crate preferences 1.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/preferences/1.1.0 [INFO] validating manifest of preferences-1.1.0 on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of preferences-1.1.0 on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing preferences-1.1.0 [INFO] finished frobbing preferences-1.1.0 [INFO] frobbed toml for preferences-1.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/preferences/1.1.0/Cargo.toml [INFO] started frobbing preferences-1.1.0 [INFO] finished frobbing preferences-1.1.0 [INFO] frobbed toml for preferences-1.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/preferences/1.1.0/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing preferences-1.1.0 against 1.36.0 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/preferences/1.1.0:/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=warn" "-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" "+1.36.0" "build" "--frozen"` [INFO] [stdout] 31f0f27a768d68a914d1cfd36f99ac387515d35450f1e3d93089696356828dca [INFO] running `"docker" "start" "-a" "31f0f27a768d68a914d1cfd36f99ac387515d35450f1e3d93089696356828dca"` [INFO] [stderr] Compiling preferences v1.1.0 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.45s [INFO] running `"docker" "inspect" "31f0f27a768d68a914d1cfd36f99ac387515d35450f1e3d93089696356828dca"` [INFO] running `"docker" "rm" "-f" "31f0f27a768d68a914d1cfd36f99ac387515d35450f1e3d93089696356828dca"` [INFO] [stdout] 31f0f27a768d68a914d1cfd36f99ac387515d35450f1e3d93089696356828dca [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/preferences/1.1.0:/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=warn" "-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" "+1.36.0" "test" "--frozen" "--no-run"` [INFO] [stdout] c6238775cde8be5bc8dbbbb470f497a9132530a2dac8899fa382eb3a5979d5f0 [INFO] running `"docker" "start" "-a" "c6238775cde8be5bc8dbbbb470f497a9132530a2dac8899fa382eb3a5979d5f0"` [INFO] [stderr] Compiling preferences v1.1.0 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.31s [INFO] running `"docker" "inspect" "c6238775cde8be5bc8dbbbb470f497a9132530a2dac8899fa382eb3a5979d5f0"` [INFO] running `"docker" "rm" "-f" "c6238775cde8be5bc8dbbbb470f497a9132530a2dac8899fa382eb3a5979d5f0"` [INFO] [stdout] c6238775cde8be5bc8dbbbb470f497a9132530a2dac8899fa382eb3a5979d5f0 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/preferences/1.1.0:/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=warn" "-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" "+1.36.0" "test" "--frozen"` [INFO] [stdout] 8668a1f3cf6ce7e19db4b6e6027e68fb946e9529e51f7d5dff5cce84271fef2d [INFO] running `"docker" "start" "-a" "8668a1f3cf6ce7e19db4b6e6027e68fb946e9529e51f7d5dff5cce84271fef2d"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/preferences-d6ebedfc3db72b55 [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test tests::test_save_load ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- tests::test_save_load stdout ---- [INFO] [stdout] thread 'tests::test_save_load' panicked at 'assertion failed: save_map_result.is_ok()', src/lib.rs:393:9 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x562ea320a193 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h6485381528590a55 [INFO] [stdout] at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39 [INFO] [stdout] 1: 0x562ea3205abb - std::sys_common::backtrace::_print::h49a82ae9552e35c7 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:71 [INFO] [stdout] 2: 0x562ea3208ed6 - std::panicking::default_hook::{{closure}}::he20974adbefcc046 [INFO] [stdout] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stdout] at src/libstd/panicking.rs:197 [INFO] [stdout] 3: 0x562ea3208bfe - std::panicking::default_hook::he4af6af4ac7fef7b [INFO] [stdout] at src/libstd/panicking.rs:208 [INFO] [stdout] 4: 0x562ea32095df - std::panicking::rust_panic_with_hook::h057ff03eb4c8000f [INFO] [stdout] at src/libstd/panicking.rs:474 [INFO] [stdout] 5: 0x562ea31e1577 - std::panicking::begin_panic::ha640dbf3be1813af [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panicking.rs:408 [INFO] [stdout] 6: 0x562ea319304e - preferences::tests::test_save_load::h39282e5ad44b49bb [INFO] [stdout] at src/lib.rs:393 [INFO] [stdout] 7: 0x562ea3192ef9 - preferences::tests::test_save_load::{{closure}}::hab3950abbc18a0ad [INFO] [stdout] at src/lib.rs:386 [INFO] [stdout] 8: 0x562ea319913d - core::ops::function::FnOnce::call_once::hc394643044609d68 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/ops/function.rs:231 [INFO] [stdout] 9: 0x562ea31a538e - as core::ops::function::FnOnce>::call_once::h6b004fa8f4fc1608 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/liballoc/boxed.rs:704 [INFO] [stdout] 10: 0x562ea320c5c9 - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:85 [INFO] [stdout] 11: 0x562ea31bfc87 - test::run_test::run_test_inner::{{closure}}::h9a4d23c41d058d37 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panicking.rs:272 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panic.rs:394 [INFO] [stdout] at src/libtest/lib.rs:1468 [INFO] [stdout] 12: 0x562ea319a6a4 - std::sys_common::backtrace::__rust_begin_short_backtrace::h3765d76361a33ff7 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/sys_common/backtrace.rs:136 [INFO] [stdout] 13: 0x562ea319e754 - std::panicking::try::do_call::h6f86e980b52f74d5 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/thread/mod.rs:470 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panic.rs:315 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panicking.rs:293 [INFO] [stdout] 14: 0x562ea320c5c9 - __rust_maybe_catch_panic [INFO] [stdout] at src/libpanic_unwind/lib.rs:85 [INFO] [stdout] 15: 0x562ea319ed61 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h760b8a2b155f54c3 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panicking.rs:272 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/panic.rs:394 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libstd/thread/mod.rs:469 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/libcore/ops/function.rs:231 [INFO] [stdout] 16: 0x562ea31fce4e - as core::ops::function::FnOnce>::call_once::h805c3cc89d534c05 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/liballoc/boxed.rs:704 [INFO] [stdout] 17: 0x562ea320bcaf - std::sys::unix::thread::Thread::new::thread_start::h6f10b78f26c98dc6 [INFO] [stdout] at /rustc/a53f9df32fbb0b5f4382caaad8f1a46f36ea887c/src/liballoc/boxed.rs:704 [INFO] [stdout] at src/libstd/sys_common/thread.rs:13 [INFO] [stdout] at src/libstd/sys/unix/thread.rs:79 [INFO] [stdout] 18: 0x7fbaf9e464a3 - start_thread [INFO] [stdout] 19: 0x7fbaf9971d0e - __clone [INFO] [stdout] 20: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] tests::test_save_load [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--lib' [INFO] running `"docker" "inspect" "8668a1f3cf6ce7e19db4b6e6027e68fb946e9529e51f7d5dff5cce84271fef2d"` [INFO] running `"docker" "rm" "-f" "8668a1f3cf6ce7e19db4b6e6027e68fb946e9529e51f7d5dff5cce84271fef2d"` [INFO] [stdout] 8668a1f3cf6ce7e19db4b6e6027e68fb946e9529e51f7d5dff5cce84271fef2d