[INFO] crate fast_paths 0.1.1 is already in cache
[INFO] extracting crate fast_paths 0.1.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/fast_paths/0.1.1
[INFO] extracting crate fast_paths 0.1.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/fast_paths/0.1.1
[INFO] validating manifest of fast_paths-0.1.1 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 fast_paths-0.1.1 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 fast_paths-0.1.1
[INFO] finished frobbing fast_paths-0.1.1
[INFO] frobbed toml for fast_paths-0.1.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/fast_paths/0.1.1/Cargo.toml
[INFO] started frobbing fast_paths-0.1.1
[INFO] finished frobbing fast_paths-0.1.1
[INFO] frobbed toml for fast_paths-0.1.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/fast_paths/0.1.1/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 fast_paths-0.1.1 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/fast_paths/0.1.1:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 010337f0943307d73fcf3f47bbe1bdc93215d781b9ac6046b491eeef403a2e72
[INFO] running `"docker" "start" "-a" "010337f0943307d73fcf3f47bbe1bdc93215d781b9ac6046b491eeef403a2e72"`
[INFO] [stderr]    Compiling indexmap v0.4.1
[INFO] [stderr]    Compiling stopwatch v0.0.7
[INFO] [stderr]    Compiling priority-queue v0.6.0
[INFO] [stderr]    Compiling fast_paths v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:89:80
[INFO] [stderr]    |
[INFO] [stderr] 89 | pub fn save_to_disk(fast_graph: &FastGraph, file_name: &str) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:95:65
[INFO] [stderr]    |
[INFO] [stderr] 95 | pub fn load_from_disk(file_name: &str) -> Result<FastGraph, Box<Error>> {
[INFO] [stderr]    |                                                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `FloydWarshall`
[INFO] [stderr]   --> src/floyd_warshall.rs:25:1
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub struct FloydWarshall {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/floyd_warshall.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn new(num_nodes: usize) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `prepare`
[INFO] [stderr]   --> src/floyd_warshall.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn prepare(&mut self, input_graph: &InputGraph) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `calc_weight`
[INFO] [stderr]   --> src/floyd_warshall.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn calc_weight(&self, source: NodeId, target: NodeId) -> Weight {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/preparation_graph.rs:149:13
[INFO] [stderr]     |
[INFO] [stderr] 149 |             node >= 0 && node < self.num_nodes,
[INFO] [stderr]     |             ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_comparisons)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.21s
[INFO] running `"docker" "inspect" "010337f0943307d73fcf3f47bbe1bdc93215d781b9ac6046b491eeef403a2e72"`
[INFO] running `"docker" "rm" "-f" "010337f0943307d73fcf3f47bbe1bdc93215d781b9ac6046b491eeef403a2e72"`
[INFO] [stdout] 010337f0943307d73fcf3f47bbe1bdc93215d781b9ac6046b491eeef403a2e72
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/fast_paths/0.1.1:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 863e5c185e23a34e2da5ec602433029dda935f0d34890e8dbeb9e959856a27f5
[INFO] running `"docker" "start" "-a" "863e5c185e23a34e2da5ec602433029dda935f0d34890e8dbeb9e959856a27f5"`
[INFO] [stderr]    Compiling fast_paths v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:89:80
[INFO] [stderr]    |
[INFO] [stderr] 89 | pub fn save_to_disk(fast_graph: &FastGraph, file_name: &str) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:95:65
[INFO] [stderr]    |
[INFO] [stderr] 95 | pub fn load_from_disk(file_name: &str) -> Result<FastGraph, Box<Error>> {
[INFO] [stderr]    |                                                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/preparation_graph.rs:149:13
[INFO] [stderr]     |
[INFO] [stderr] 149 |             node >= 0 && node < self.num_nodes,
[INFO] [stderr]     |             ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_comparisons)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.98s
[INFO] running `"docker" "inspect" "863e5c185e23a34e2da5ec602433029dda935f0d34890e8dbeb9e959856a27f5"`
[INFO] running `"docker" "rm" "-f" "863e5c185e23a34e2da5ec602433029dda935f0d34890e8dbeb9e959856a27f5"`
[INFO] [stdout] 863e5c185e23a34e2da5ec602433029dda935f0d34890e8dbeb9e959856a27f5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/fast_paths/0.1.1:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 551b77dec689d80f900dd76ac6a12adcdf7834cddddaae3d373af22f35937f3d
[INFO] running `"docker" "start" "-a" "551b77dec689d80f900dd76ac6a12adcdf7834cddddaae3d373af22f35937f3d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fast_paths-875a0ddb5319b7de
[INFO] [stdout] 
[INFO] [stdout] running 38 tests
[INFO] [stdout] test dijkstra::tests::go_around ... ok
[INFO] [stdout] test dijkstra::tests::avoid_node ... ok
[INFO] [stdout] test dijkstra::tests::limit_weight ... ok
[INFO] [stdout] test dijkstra::tests::run_multiple ... ok
[INFO] [stdout] test dijkstra::tests::simple_path ... ok
[INFO] [stdout] test fast_graph_builder::tests::calc_path_linear_bwd_only ... ok
[INFO] [stdout] test fast_graph_builder::tests::calc_path_another ... ok
[INFO] [stdout] test input_graph::tests::num_nodes ... ok
[INFO] [stdout] test fast_graph_builder::tests::calc_path_simple ... ok
[INFO] [stdout] test input_graph::tests::freeze_and_thaw ... ok
[INFO] [stdout] test floyd_warshall::tests::calc_weights ... ok
[INFO] [stdout] test input_graph::tests::skips_duplicate_edges_more ... ok
[INFO] [stdout] test input_graph::tests::skips_loops ... ok
[INFO] [stdout] test input_graph::tests::skips_duplicate_edges ... ok
[INFO] [stdout] test input_graph::tests::skips_zero_weight_edges ... ok
[INFO] [stdout] test node_contractor::tests::calc_shortcuts_no_witness ... ok
[INFO] [stdout] test node_contractor::tests::calc_priority ... ok
[INFO] [stdout] test node_contractor::tests::calc_shortcuts_witness_via_center ... ok
[INFO] [stdout] test node_contractor::tests::contract_node ... ok
[INFO] [stdout] test path_calculator::tests::unpack_fwd_single ... ok
[INFO] [stdout] test path_calculator::tests::unpack_fwd_simple ... ok
[INFO] [stdout] test preparation_graph::tests::add_or_remove_edge ... ok
[INFO] [stdout] test preparation_graph::tests::add_and_remove_edges ... ok
[INFO] [stdout] test preparation_graph::tests::disconnect ... ok
[INFO] [stdout] test tests::run_performance_test_23rd ... ignored
[INFO] [stdout] test tests::run_performance_test_ballard ... ignored
[INFO] [stdout] test tests::run_performance_test_dist ... ignored
[INFO] [stdout] test tests::run_performance_test_dist_fixed_ordering ... ignored
[INFO] [stdout] test tests::run_performance_test_time ... ignored
[INFO] [stdout] test fast_graph_builder::tests::calc_path_linear_fwd_only ... ok
[INFO] [stdout] test valid_flags::tests::set_valid_and_invalidate ... ok
[INFO] [stdout] test node_contractor::tests::calc_shortcuts_witness ... ok
[INFO] [stdout] test input_graph::tests::panic_if_frozen_add_edge ... ok
[INFO] [stdout] test input_graph::tests::panic_if_not_frozen_get_num_edges ... ok
[INFO] [stdout] test input_graph::tests::panic_if_not_frozen_get_edges ... ok
[INFO] [stdout] test input_graph::tests::panic_if_not_frozen_get_num_nodes ... ok
[INFO] [stdout] test tests::save_to_and_load_from_disk ... FAILED
[INFO] [stdout] test tests::routing_on_random_graph ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::save_to_and_load_from_disk stdout ----
[INFO] [stdout] thread 'tests::save_to_and_load_from_disk' panicked at 'writing to disk failed: Os { code: 30, kind: Other, message: "Read-only file system" }', src/libcore/result.rs:999:5
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55fe528b2e1b - backtrace::backtrace::libunwind::trace::h5dfa5d4c5feed6dc
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stdout]    1:     0x55fe528b2e1b - backtrace::backtrace::trace_unsynchronized::hb731fe64f3fa469f
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55fe528b2e1b - std::sys_common::backtrace::_print::hf4fd45fe7ae4a250
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stdout]    3:     0x55fe528b2e1b - std::sys_common::backtrace::print::h31646c3786c57441
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stdout]    4:     0x55fe528b2e1b - std::panicking::default_hook::{{closure}}::hda785e768c746ae7
[INFO] [stdout]                                at src/libstd/panicking.rs:200
[INFO] [stdout]    5:     0x55fe528b2a8a - std::panicking::default_hook::h0c4b76f338614ef1
[INFO] [stdout]                                at src/libstd/panicking.rs:211
[INFO] [stdout]    6:     0x55fe528b3590 - std::panicking::rust_panic_with_hook::h096dff2cb12b67ce
[INFO] [stdout]                                at src/libstd/panicking.rs:477
[INFO] [stdout]    7:     0x55fe528b3112 - std::panicking::continue_panic_fmt::h0046167652be99a6
[INFO] [stdout]                                at src/libstd/panicking.rs:384
[INFO] [stdout]    8:     0x55fe528b2ff6 - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:311
[INFO] [stdout]    9:     0x55fe528cc65d - core::panicking::panic_fmt::h8980489a6c4a44cb
[INFO] [stdout]                                at src/libcore/panicking.rs:85
[INFO] [stdout]   10:     0x55fe528325c5 - core::result::unwrap_failed::h9395e0ce753ccdb8
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/macros.rs:18
[INFO] [stdout]   11:     0x55fe528357c5 - core::result::Result<T,E>::expect::hbbc8255b53ca6da7
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/result.rs:827
[INFO] [stdout]   12:     0x55fe527f2397 - fast_paths::tests::save_to_and_load_from_disk::h4d3034a874ee0dd4
[INFO] [stdout]                                at src/lib.rs:190
[INFO] [stdout]   13:     0x55fe527f226a - fast_paths::tests::save_to_and_load_from_disk::{{closure}}::hacf17fb03b9e371d
[INFO] [stdout]                                at src/lib.rs:183
[INFO] [stdout]   14:     0x55fe5281c09e - core::ops::function::FnOnce::call_once::h0e2699d4575cf353
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:231
[INFO] [stdout]   15:     0x55fe528466ef - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h9568fda2c3b99042
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   16:     0x55fe528b5c5a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stdout]   17:     0x55fe52860ce8 - std::panicking::try::h4b4c6c15836266eb
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:275
[INFO] [stdout]   18:     0x55fe52860ce8 - std::panic::catch_unwind::h133691b514d0224c
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:394
[INFO] [stdout]   19:     0x55fe52860ce8 - test::run_test::run_test_inner::{{closure}}::h41355d9f207d71fe
[INFO] [stdout]                                at src/libtest/lib.rs:1466
[INFO] [stdout]   20:     0x55fe5283bb65 - std::sys_common::backtrace::__rust_begin_short_backtrace::h7c86e4012abd2d40
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/sys_common/backtrace.rs:77
[INFO] [stdout]   21:     0x55fe5283fce5 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h2ba9d55fec0ea776
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/thread/mod.rs:470
[INFO] [stdout]   22:     0x55fe5283fce5 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hdf89f4d89df3dda3
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:315
[INFO] [stdout]   23:     0x55fe5283fce5 - std::panicking::try::do_call::h59b39c89384b7a2f
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:296
[INFO] [stdout]   24:     0x55fe528b5c5a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stdout]   25:     0x55fe52840322 - std::panicking::try::h9fff34be50f16431
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:275
[INFO] [stdout]   26:     0x55fe52840322 - std::panic::catch_unwind::h7551856ff7c5e12a
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:394
[INFO] [stdout]   27:     0x55fe52840322 - std::thread::Builder::spawn_unchecked::{{closure}}::hafea48c774d796e7
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/thread/mod.rs:469
[INFO] [stdout]   28:     0x55fe52840322 - core::ops::function::FnOnce::call_once{{vtable.shim}}::he5fe7b84ce5a3830
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:231
[INFO] [stdout]   29:     0x55fe528a884f - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h55ef432b72ff7a0b
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   30:     0x55fe528b53b0 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h9294a5138530eae1
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   31:     0x55fe528b53b0 - std::sys_common::thread::start_thread::h0d2733dd32c3723c
[INFO] [stdout]                                at src/libstd/sys_common/thread.rs:13
[INFO] [stdout]   32:     0x55fe528b53b0 - std::sys::unix::thread::Thread::new::thread_start::hf1005dad6ba8f2b1
[INFO] [stdout]                                at src/libstd/sys/unix/thread.rs:79
[INFO] [stdout]   33:     0x7f532ff804a4 - start_thread
[INFO] [stdout]   34:     0x7f532faabd0f - __clone
[INFO] [stdout]   35:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::save_to_and_load_from_disk
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 32 passed; 1 failed; 5 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] running `"docker" "inspect" "551b77dec689d80f900dd76ac6a12adcdf7834cddddaae3d373af22f35937f3d"`
[INFO] running `"docker" "rm" "-f" "551b77dec689d80f900dd76ac6a12adcdf7834cddddaae3d373af22f35937f3d"`
[INFO] [stdout] 551b77dec689d80f900dd76ac6a12adcdf7834cddddaae3d373af22f35937f3d