[INFO] crate fast_paths 0.1.1 is already in cache
[INFO] testing fast_paths-0.1.1 against 1.38.0 for beta-1.39-1
[INFO] extracting crate fast_paths 0.1.1 into work/builds/worker-0/source
[INFO] validating manifest of crates.io crate fast_paths 0.1.1 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate fast_paths 0.1.1
[INFO] finished tweaking crates.io crate fast_paths 0.1.1
[INFO] tweaked toml for crates.io crate fast_paths 0.1.1 written to work/builds/worker-0/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] fbbf6bdf31d9201c663e7dd543461920acb18484263370b05fe85f6aa1d43396
[INFO] running `"docker" "start" "-a" "fbbf6bdf31d9201c663e7dd543461920acb18484263370b05fe85f6aa1d43396"`
[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/rustwide/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 4.23s
[INFO] running `"docker" "inspect" "fbbf6bdf31d9201c663e7dd543461920acb18484263370b05fe85f6aa1d43396"`
[INFO] running `"docker" "rm" "-f" "fbbf6bdf31d9201c663e7dd543461920acb18484263370b05fe85f6aa1d43396"`
[INFO] [stdout] fbbf6bdf31d9201c663e7dd543461920acb18484263370b05fe85f6aa1d43396
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] f2ac3448af02c8504aa74e566c3685fe8512f9dc91e35783359163774dfc047e
[INFO] running `"docker" "start" "-a" "f2ac3448af02c8504aa74e566c3685fe8512f9dc91e35783359163774dfc047e"`
[INFO] [stderr]    Compiling fast_paths v0.1.1 (/opt/rustwide/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 3.02s
[INFO] running `"docker" "inspect" "f2ac3448af02c8504aa74e566c3685fe8512f9dc91e35783359163774dfc047e"`
[INFO] running `"docker" "rm" "-f" "f2ac3448af02c8504aa74e566c3685fe8512f9dc91e35783359163774dfc047e"`
[INFO] [stdout] f2ac3448af02c8504aa74e566c3685fe8512f9dc91e35783359163774dfc047e
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 7997c44711c8e95194ad407bc2ce47beffa13d765e7b547d0ce496a6d9d18e3a
[INFO] running `"docker" "start" "-a" "7997c44711c8e95194ad407bc2ce47beffa13d765e7b547d0ce496a6d9d18e3a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fast_paths-577d1e3988eb8ba5
[INFO] [stdout] 
[INFO] [stdout] running 38 tests
[INFO] [stdout] test dijkstra::tests::avoid_node ... ok
[INFO] [stdout] test dijkstra::tests::go_around ... 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::freeze_and_thaw ... ok
[INFO] [stdout] test fast_graph_builder::tests::calc_path_linear_fwd_only ... ok
[INFO] [stdout] test fast_graph_builder::tests::calc_path_simple ... ok
[INFO] [stdout] test input_graph::tests::num_nodes ... ok
[INFO] [stdout] test floyd_warshall::tests::calc_weights ... ok
[INFO] [stdout] test input_graph::tests::skips_duplicate_edges ... 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_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 ... 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_simple ... ok
[INFO] [stdout] test path_calculator::tests::unpack_fwd_single ... ok
[INFO] [stdout] test preparation_graph::tests::add_or_remove_edge ... 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 preparation_graph::tests::add_and_remove_edges ... ok
[INFO] [stdout] test valid_flags::tests::set_valid_and_invalidate ... 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:1084:5
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x559b95a6ce5b - backtrace::backtrace::libunwind::trace::h89fcc71e59e3bc5b
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stdout]    1:     0x559b95a6ce5b - backtrace::backtrace::trace_unsynchronized::h0bad9be1379e729a
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x559b95a6ce5b - std::sys_common::backtrace::_print::hd3382a1f33c473da
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stdout]    3:     0x559b95a6ce5b - std::sys_common::backtrace::print::h0ec6f03cfb8e76a6
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stdout]    4:     0x559b95a6ce5b - std::panicking::default_hook::{{closure}}::h96cbf7b454e3f557
[INFO] [stdout]                                at src/libstd/panicking.rs:200
[INFO] [stdout]    5:     0x559b95a6cacc - std::panicking::default_hook::h95a8f00337383d83
[INFO] [stdout]                                at src/libstd/panicking.rs:211
[INFO] [stdout]    6:     0x559b95a6d5cd - std::panicking::rust_panic_with_hook::h92f98b46e22f14ed
[INFO] [stdout]                                at src/libstd/panicking.rs:477
[INFO] [stdout]    7:     0x559b95a6d152 - std::panicking::continue_panic_fmt::h25abfbb4e5b7043a
[INFO] [stdout]                                at src/libstd/panicking.rs:384
[INFO] [stdout]    8:     0x559b95a6d036 - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:311
[INFO] [stdout]    9:     0x559b95a867ed - core::panicking::panic_fmt::h7e9f94035af782b3
[INFO] [stdout]                                at src/libcore/panicking.rs:85
[INFO] [stdout]   10:     0x559b95a868e7 - core::result::unwrap_failed::hf7591c1dd9412006
[INFO] [stdout]                                at src/libcore/result.rs:1084
[INFO] [stdout]   11:     0x559b959952c3 - core::result::Result<T,E>::expect::h7ec7c7b9a8a05e78
[INFO] [stdout]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libcore/result.rs:879
[INFO] [stdout]   12:     0x559b959beedf - fast_paths::tests::save_to_and_load_from_disk::h2b3b98a744028aff
[INFO] [stdout]                                at src/lib.rs:190
[INFO] [stdout]   13:     0x559b959bedca - fast_paths::tests::save_to_and_load_from_disk::{{closure}}::h706ad49782dd0ffa
[INFO] [stdout]                                at src/lib.rs:183
[INFO] [stdout]   14:     0x559b959de87e - core::ops::function::FnOnce::call_once::h73f5ec780faef3fd
[INFO] [stdout]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libcore/ops/function.rs:235
[INFO] [stdout]   15:     0x559b959fe3ff - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hac0fbe2754f8bd24
[INFO] [stdout]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/liballoc/boxed.rs:787
[INFO] [stdout]   16:     0x559b95a6fe6a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stdout]   17:     0x559b95a189ee - std::panicking::try::h9d6938917cc05e3f
[INFO] [stdout]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panicking.rs:275
[INFO] [stdout]   18:     0x559b95a189ee - std::panic::catch_unwind::h5be70fd1d69515b0
[INFO] [stdout]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panic.rs:394
[INFO] [stdout]   19:     0x559b95a189ee - test::run_test::run_test_inner::{{closure}}::h056f206eafd8ff6e
[INFO] [stdout]                                at src/libtest/lib.rs:1408
[INFO] [stdout]   20:     0x559b959f3e25 - std::sys_common::backtrace::__rust_begin_short_backtrace::h859abbc742a34b19
[INFO] [stdout]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/sys_common/backtrace.rs:77
[INFO] [stdout]   21:     0x559b959f7f65 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf8192ec938c43694
[INFO] [stdout]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/thread/mod.rs:470
[INFO] [stdout]   22:     0x559b959f7f65 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hae7b2431555cb4db
[INFO] [stdout]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panic.rs:315
[INFO] [stdout]   23:     0x559b959f7f65 - std::panicking::try::do_call::h6da7ecd0783259d7
[INFO] [stdout]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panicking.rs:296
[INFO] [stdout]   24:     0x559b95a6fe6a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stdout]   25:     0x559b959f8542 - std::panicking::try::h3c1c35414c2c78f1
[INFO] [stdout]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panicking.rs:275
[INFO] [stdout]   26:     0x559b959f8542 - std::panic::catch_unwind::ha5cfb2018fda983e
[INFO] [stdout]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/panic.rs:394
[INFO] [stdout]   27:     0x559b959f8542 - std::thread::Builder::spawn_unchecked::{{closure}}::hc7620e41f0938c09
[INFO] [stdout]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libstd/thread/mod.rs:469
[INFO] [stdout]   28:     0x559b959f8542 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h1b3b20eeb6ea6ddd
[INFO] [stdout]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/libcore/ops/function.rs:235
[INFO] [stdout]   29:     0x559b95a6272f - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h2877b2aefb0fd627
[INFO] [stdout]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/liballoc/boxed.rs:787
[INFO] [stdout]   30:     0x559b95a6f5a0 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h13f473dbcdaa0fef
[INFO] [stdout]                                at /rustc/625451e376bb2e5283fc4741caa0a3e8a2ca4d54/src/liballoc/boxed.rs:787
[INFO] [stdout]   31:     0x559b95a6f5a0 - std::sys_common::thread::start_thread::h562a7c4953cb1d31
[INFO] [stdout]                                at src/libstd/sys_common/thread.rs:13
[INFO] [stdout]   32:     0x559b95a6f5a0 - std::sys::unix::thread::Thread::new::thread_start::h382c6ae14181d163
[INFO] [stdout]                                at src/libstd/sys/unix/thread.rs:79
[INFO] [stdout]   33:     0x7fed9c9d66db - start_thread
[INFO] [stdout]   34:     0x7fed9c4e788f - __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" "7997c44711c8e95194ad407bc2ce47beffa13d765e7b547d0ce496a6d9d18e3a"`
[INFO] running `"docker" "rm" "-f" "7997c44711c8e95194ad407bc2ce47beffa13d765e7b547d0ce496a6d9d18e3a"`
[INFO] [stdout] 7997c44711c8e95194ad407bc2ce47beffa13d765e7b547d0ce496a6d9d18e3a