[INFO] fetching crate fast_paths 0.1.1...
[INFO] testing fast_paths-0.1.1 against 1.44.0 for beta-1.45-1
[INFO] extracting crate fast_paths 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate fast_paths 0.1.1 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "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 /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b6473f785c0bafb4f03d427a28489d9ac2f8e2621f8bd491917138c6dedd69ed
[INFO] running `"docker" "start" "-a" "b6473f785c0bafb4f03d427a28489d9ac2f8e2621f8bd491917138c6dedd69ed"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling indexmap v0.4.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling priority-queue v0.6.0
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling stopwatch v0.0.7
[INFO] [stderr]    Compiling bincode v1.2.1
[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:25:12
[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] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.69s
[INFO] running `"docker" "inspect" "b6473f785c0bafb4f03d427a28489d9ac2f8e2621f8bd491917138c6dedd69ed"`
[INFO] running `"docker" "rm" "-f" "b6473f785c0bafb4f03d427a28489d9ac2f8e2621f8bd491917138c6dedd69ed"`
[INFO] [stdout] b6473f785c0bafb4f03d427a28489d9ac2f8e2621f8bd491917138c6dedd69ed
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2e5f185efb49fb2ab0b50b64a58afda6920c9e357981bd332419525ba74ef69b
[INFO] running `"docker" "start" "-a" "2e5f185efb49fb2ab0b50b64a58afda6920c9e357981bd332419525ba74ef69b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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:25:12
[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] warning: 7 warnings emitted
[INFO] [stderr] 
[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] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.77s
[INFO] running `"docker" "inspect" "2e5f185efb49fb2ab0b50b64a58afda6920c9e357981bd332419525ba74ef69b"`
[INFO] running `"docker" "rm" "-f" "2e5f185efb49fb2ab0b50b64a58afda6920c9e357981bd332419525ba74ef69b"`
[INFO] [stdout] 2e5f185efb49fb2ab0b50b64a58afda6920c9e357981bd332419525ba74ef69b
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-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" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 416253dd1715eb4018351ebd319c91ead1d0e6ec25ded5d72ab7b5270069d96b
[INFO] running `"docker" "start" "-a" "416253dd1715eb4018351ebd319c91ead1d0e6ec25ded5d72ab7b5270069d96b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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] warning: 3 warnings emitted
[INFO] [stderr] 
[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:25:12
[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] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fast_paths-3e9df720845a4dbd
[INFO] [stdout] 
[INFO] [stdout] running 38 tests
[INFO] [stdout] test dijkstra::tests::limit_weight ... ok
[INFO] [stdout] test fast_graph_builder::tests::calc_path_simple ... ok
[INFO] [stdout] test floyd_warshall::tests::calc_weights ... ok
[INFO] [stdout] test fast_graph_builder::tests::calc_path_linear_bwd_only ... ok
[INFO] [stdout] test input_graph::tests::skips_duplicate_edges ... ok
[INFO] [stdout] test fast_graph_builder::tests::calc_path_linear_fwd_only ... ok
[INFO] [stdout] test dijkstra::tests::go_around ... ok
[INFO] [stdout] test dijkstra::tests::avoid_node ... ok
[INFO] [stdout] test input_graph::tests::num_nodes ... ok
[INFO] [stdout] test input_graph::tests::freeze_and_thaw ... ok
[INFO] [stdout] test dijkstra::tests::run_multiple ... ok
[INFO] [stdout] test dijkstra::tests::simple_path ... ok
[INFO] [stdout] test input_graph::tests::skips_loops ... ok
[INFO] [stdout] test fast_graph_builder::tests::calc_path_another ... 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 input_graph::tests::skips_duplicate_edges_more ... ok
[INFO] [stdout] test path_calculator::tests::unpack_fwd_simple ... ok
[INFO] [stdout] test preparation_graph::tests::add_and_remove_edges ... 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 tests::run_performance_test_23rd ... ignored
[INFO] [stdout] test tests::run_performance_test_ballard ... ignored
[INFO] [stdout] test preparation_graph::tests::disconnect ... ok
[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 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 valid_flags::tests::set_valid_and_invalidate ... 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_frozen_add_edge ... ok
[INFO] [stdout] test tests::save_to_and_load_from_disk ... FAILED
[INFO] [stdout] test input_graph::tests::panic_if_not_frozen_get_num_nodes ... ok
[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/lib.rs:190:9
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x560a22cee594 - backtrace::backtrace::libunwind::trace::hc1c4a1d8ad423b97
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stdout]    1:     0x560a22cee594 - backtrace::backtrace::trace_unsynchronized::h82274781060cb056
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x560a22cee594 - std::sys_common::backtrace::_print_fmt::h2a45d89b653a4da8
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stdout]    3:     0x560a22cee594 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h41a0a93ab85e6aa1
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stdout]    4:     0x560a22d17dec - core::fmt::write::hdaea18585065a96d
[INFO] [stdout]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stdout]    5:     0x560a22c6e065 - std::io::Write::write_fmt::h42f0550b6bd39c6e
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/io/mod.rs:1504
[INFO] [stdout]    6:     0x560a22ce8a21 - std::io::impls::<impl std::io::Write for alloc::boxed::Box<W>>::write_fmt::h223d7b7033cad46d
[INFO] [stdout]                                at src/libstd/io/impls.rs:156
[INFO] [stdout]    7:     0x560a22cf0e65 - std::sys_common::backtrace::_print::hd95f9978cc145ca4
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stdout]    8:     0x560a22cf0e65 - std::sys_common::backtrace::print::hfb25ca2291be47d0
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stdout]    9:     0x560a22cf0e65 - std::panicking::default_hook::{{closure}}::h44f76cee5dc8591c
[INFO] [stdout]                                at src/libstd/panicking.rs:198
[INFO] [stdout]   10:     0x560a22cf0b4b - std::panicking::default_hook::h198e1a712910f1e6
[INFO] [stdout]                                at src/libstd/panicking.rs:215
[INFO] [stdout]   11:     0x560a22cf14c2 - std::panicking::rust_panic_with_hook::hc0b4730bb8013f9d
[INFO] [stdout]                                at src/libstd/panicking.rs:511
[INFO] [stdout]   12:     0x560a22cf10ab - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:419
[INFO] [stdout]   13:     0x560a22d15e91 - core::panicking::panic_fmt::h1ac71ad045d55416
[INFO] [stdout]                                at src/libcore/panicking.rs:111
[INFO] [stdout]   14:     0x560a22d15cb3 - core::option::expect_none_failed::hb40004d71d61b685
[INFO] [stdout]                                at src/libcore/option.rs:1268
[INFO] [stdout]   15:     0x560a22c50ea6 - core::result::Result<T,E>::expect::ha4d395a29e895f82
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libcore/result.rs:963
[INFO] [stdout]   16:     0x560a22c1aa56 - fast_paths::tests::save_to_and_load_from_disk::haf1d7c9bdcde951b
[INFO] [stdout]                                at src/lib.rs:190
[INFO] [stdout]   17:     0x560a22c1a93a - fast_paths::tests::save_to_and_load_from_disk::{{closure}}::he4af4a16b580cbcc
[INFO] [stdout]                                at src/lib.rs:183
[INFO] [stdout]   18:     0x560a22c5550e - core::ops::function::FnOnce::call_once::hcb20dcd87234c07f
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libcore/ops/function.rs:232
[INFO] [stdout]   19:     0x560a22c954f6 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hc165f65f4331a55c
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/liballoc/boxed.rs:1008
[INFO] [stdout]   20:     0x560a22c954f6 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb89f1f769cad07ce
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panic.rs:318
[INFO] [stdout]   21:     0x560a22c954f6 - std::panicking::try::do_call::h104f7f3dae5a1b29
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:331
[INFO] [stdout]   22:     0x560a22c954f6 - std::panicking::try::h0e20f01361cba753
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:274
[INFO] [stdout]   23:     0x560a22c954f6 - std::panic::catch_unwind::h0bd0c84b5f4cd121
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panic.rs:394
[INFO] [stdout]   24:     0x560a22c954f6 - test::run_test_in_process::hf34c22adfeb6853d
[INFO] [stdout]                                at src/libtest/lib.rs:541
[INFO] [stdout]   25:     0x560a22c954f6 - test::run_test::run_test_inner::{{closure}}::h40d568b4c10a12f1
[INFO] [stdout]                                at src/libtest/lib.rs:450
[INFO] [stdout]   26:     0x560a22c6d516 - std::sys_common::backtrace::__rust_begin_short_backtrace::hffd9774ad3f2d778
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/sys_common/backtrace.rs:130
[INFO] [stdout]   27:     0x560a22c728a5 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h4594020476cf52d4
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/thread/mod.rs:475
[INFO] [stdout]   28:     0x560a22c728a5 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9d0a6d45b73e29e4
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panic.rs:318
[INFO] [stdout]   29:     0x560a22c728a5 - std::panicking::try::do_call::h902fd77b30bb3bb7
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:331
[INFO] [stdout]   30:     0x560a22c728a5 - std::panicking::try::hc17d3a628e65d49d
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:274
[INFO] [stdout]   31:     0x560a22c728a5 - std::panic::catch_unwind::h9c9d49cbb6b18017
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panic.rs:394
[INFO] [stdout]   32:     0x560a22c728a5 - std::thread::Builder::spawn_unchecked::{{closure}}::h6a6f5a333fd631a2
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/thread/mod.rs:474
[INFO] [stdout]   33:     0x560a22c728a5 - core::ops::function::FnOnce::call_once{{vtable.shim}}::ha6fb197e0ce57f73
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libcore/ops/function.rs:232
[INFO] [stdout]   34:     0x560a22cf7e3a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h1f1fac7de7dd9691
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/liballoc/boxed.rs:1008
[INFO] [stdout]   35:     0x560a22cf7e3a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::ha031f48633a6af54
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/liballoc/boxed.rs:1008
[INFO] [stdout]   36:     0x560a22cf7e3a - std::sys::unix::thread::Thread::new::thread_start::h241864caf436e182
[INFO] [stdout]                                at src/libstd/sys/unix/thread.rs:87
[INFO] [stdout]   37:     0x7f4b8d368609 - start_thread
[INFO] [stdout]   38:     0x7f4b8d274103 - __clone
[INFO] [stdout]   39:                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" "416253dd1715eb4018351ebd319c91ead1d0e6ec25ded5d72ab7b5270069d96b"`
[INFO] running `"docker" "rm" "-f" "416253dd1715eb4018351ebd319c91ead1d0e6ec25ded5d72ab7b5270069d96b"`
[INFO] [stdout] 416253dd1715eb4018351ebd319c91ead1d0e6ec25ded5d72ab7b5270069d96b