[INFO] fetching crate arboreal 0.0.4...
[INFO] testing arboreal-0.0.4 against master#2fd6efc32704647e64d3d646d21c4c68eae100e4 for pr-149852-1
[INFO] extracting crate arboreal 0.0.4 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate arboreal 0.0.4
[INFO] finished tweaking crates.io crate arboreal 0.0.4
[INFO] tweaked toml for crates.io crate arboreal 0.0.4 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate arboreal 0.0.4 on toolchain 2fd6efc32704647e64d3d646d21c4c68eae100e4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate arboreal 0.0.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fixed_deque v1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 858ea5097ff234ebd9b5ce5419378957477999d568c83c0cfd43068f629e0a41
[INFO] running `Command { std: "docker" "start" "-a" "858ea5097ff234ebd9b5ce5419378957477999d568c83c0cfd43068f629e0a41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "858ea5097ff234ebd9b5ce5419378957477999d568c83c0cfd43068f629e0a41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "858ea5097ff234ebd9b5ce5419378957477999d568c83c0cfd43068f629e0a41", kill_on_drop: false }`
[INFO] [stdout] 858ea5097ff234ebd9b5ce5419378957477999d568c83c0cfd43068f629e0a41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2bceb3b2e3f53f66e54ab0d4773ed7fac7117cc08e462eded2318947e864916
[INFO] running `Command { std: "docker" "start" "-a" "f2bceb3b2e3f53f66e54ab0d4773ed7fac7117cc08e462eded2318947e864916", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling fixed_deque v1.3.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling bitflags v2.9.1
[INFO] [stderr]    Compiling ron v0.10.1
[INFO] [stderr]    Compiling arboreal v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::graph_base::graph_ref`
[INFO] [stdout]  --> src/digraph/digraph_impl.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::graph_base::graph_ref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `try_get_edge_vec` is never used
[INFO] [stdout]   --> src/graph_base/graph_components.rs:59:19
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl<N: Nodal, E: DirEdge> GraphChange<N, E> {
[INFO] [stdout]    | -------------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub(crate) fn try_get_edge_vec(&self) -> Result<Vec<E>, &'static str> {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_node_degrees` is never used
[INFO] [stdout]   --> src/graph_base/graph_ref.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn check_node_degrees<N: Nodal, E: DirEdge>(edges: &Vec<E>, id: Id) -> (usize, usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `sink_node_ids`, `is_connected`, `is_terminable`, and `is_valid` are never used
[INFO] [stdout]    --> src/digraph/digraph_impl.rs:81:19
[INFO] [stdout]     |
[INFO] [stdout]  12 | impl<N: Nodal, E: DirEdge> DiGraph<N, E> {
[INFO] [stdout]     | ---------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  81 |     pub(super) fn sink_node_ids(&self) -> Vec<Id> {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  96 |     pub(super) fn is_connected(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |     pub(super) fn is_terminable(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     pub(super) fn is_valid(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.84s
[INFO] running `Command { std: "docker" "inspect" "f2bceb3b2e3f53f66e54ab0d4773ed7fac7117cc08e462eded2318947e864916", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2bceb3b2e3f53f66e54ab0d4773ed7fac7117cc08e462eded2318947e864916", kill_on_drop: false }`
[INFO] [stdout] f2bceb3b2e3f53f66e54ab0d4773ed7fac7117cc08e462eded2318947e864916
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b08639698d34011aa4baabc116be6cfa4b5dfdc917c8ca0a61f37d36d9109cc
[INFO] running `Command { std: "docker" "start" "-a" "5b08639698d34011aa4baabc116be6cfa4b5dfdc917c8ca0a61f37d36d9109cc", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `crate::graph_base::graph_ref`
[INFO] [stdout]  --> src/digraph/digraph_impl.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::graph_base::graph_ref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `try_get_edge_vec` is never used
[INFO] [stdout]   --> src/graph_base/graph_components.rs:59:19
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl<N: Nodal, E: DirEdge> GraphChange<N, E> {
[INFO] [stdout]    | -------------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub(crate) fn try_get_edge_vec(&self) -> Result<Vec<E>, &'static str> {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_node_degrees` is never used
[INFO] [stdout]   --> src/graph_base/graph_ref.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn check_node_degrees<N: Nodal, E: DirEdge>(edges: &Vec<E>, id: Id) -> (usize, usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `sink_node_ids`, `is_connected`, `is_terminable`, and `is_valid` are never used
[INFO] [stdout]    --> src/digraph/digraph_impl.rs:81:19
[INFO] [stdout]     |
[INFO] [stdout]  12 | impl<N: Nodal, E: DirEdge> DiGraph<N, E> {
[INFO] [stdout]     | ---------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  81 |     pub(super) fn sink_node_ids(&self) -> Vec<Id> {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  96 |     pub(super) fn is_connected(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |     pub(super) fn is_terminable(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     pub(super) fn is_valid(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling arboreal v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::graph_base::graph_ref`
[INFO] [stdout]  --> src/digraph/digraph_impl.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::graph_base::graph_ref;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `try_get_edge_vec` is never used
[INFO] [stdout]   --> src/graph_base/graph_components.rs:59:19
[INFO] [stdout]    |
[INFO] [stdout] 38 | impl<N: Nodal, E: DirEdge> GraphChange<N, E> {
[INFO] [stdout]    | -------------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 59 |     pub(crate) fn try_get_edge_vec(&self) -> Result<Vec<E>, &'static str> {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_node_degrees` is never used
[INFO] [stdout]   --> src/graph_base/graph_ref.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn check_node_degrees<N: Nodal, E: DirEdge>(edges: &Vec<E>, id: Id) -> (usize, usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `sink_node_ids`, `is_connected`, `is_terminable`, and `is_valid` are never used
[INFO] [stdout]    --> src/digraph/digraph_impl.rs:81:19
[INFO] [stdout]     |
[INFO] [stdout]  12 | impl<N: Nodal, E: DirEdge> DiGraph<N, E> {
[INFO] [stdout]     | ---------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  81 |     pub(super) fn sink_node_ids(&self) -> Vec<Id> {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  96 |     pub(super) fn is_connected(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 104 |     pub(super) fn is_terminable(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     pub(super) fn is_valid(&self) -> bool {
[INFO] [stdout]     |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "5b08639698d34011aa4baabc116be6cfa4b5dfdc917c8ca0a61f37d36d9109cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b08639698d34011aa4baabc116be6cfa4b5dfdc917c8ca0a61f37d36d9109cc", kill_on_drop: false }`
[INFO] [stdout] 5b08639698d34011aa4baabc116be6cfa4b5dfdc917c8ca0a61f37d36d9109cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+2fd6efc32704647e64d3d646d21c4c68eae100e4" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 68828b6059fc17eae3cd35d3e072db56039a6f12a7d97a9ab18283a341fcde21
[INFO] running `Command { std: "docker" "start" "-a" "68828b6059fc17eae3cd35d3e072db56039a6f12a7d97a9ab18283a341fcde21", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::graph_base::graph_ref`
[INFO] [stderr]  --> src/digraph/digraph_impl.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::graph_base::graph_ref;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `try_get_edge_vec` is never used
[INFO] [stderr]   --> src/graph_base/graph_components.rs:59:19
[INFO] [stderr]    |
[INFO] [stderr] 38 | impl<N: Nodal, E: DirEdge> GraphChange<N, E> {
[INFO] [stderr]    | -------------------------------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 59 |     pub(crate) fn try_get_edge_vec(&self) -> Result<Vec<E>, &'static str> {
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `check_node_degrees` is never used
[INFO] [stderr]   --> src/graph_base/graph_ref.rs:30:8
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn check_node_degrees<N: Nodal, E: DirEdge>(edges: &Vec<E>, id: Id) -> (usize, usize) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `sink_node_ids`, `is_connected`, `is_terminable`, and `is_valid` are never used
[INFO] [stderr]    --> src/digraph/digraph_impl.rs:81:19
[INFO] [stderr]     |
[INFO] [stderr]  12 | impl<N: Nodal, E: DirEdge> DiGraph<N, E> {
[INFO] [stderr]     | ---------------------------------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr]  81 |     pub(super) fn sink_node_ids(&self) -> Vec<Id> {
[INFO] [stderr]     |                   ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr]  96 |     pub(super) fn is_connected(&self) -> bool {
[INFO] [stderr]     |                   ^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 104 |     pub(super) fn is_terminable(&self) -> bool {
[INFO] [stderr]     |                   ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 107 |     pub(super) fn is_valid(&self) -> bool {
[INFO] [stderr]     |                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `arboreal` (lib) generated 4 warnings (run `cargo fix --lib -p arboreal` to apply 1 suggestion)
[INFO] [stderr] warning: `arboreal` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/arboreal-c1edaa0b020885ad)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test demos::demo_extend_graph ... ignored, run to show usage with adding and removing nodes/edges
[INFO] [stdout] test tests::test_valid ... ok
[INFO] [stdout] test tests::test_auto_edge_drop ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::test_auto_edge_drop stdout ----
[INFO] [stdout] Default object for example Node/Edge structs:
[INFO] [stdout] DiGraph
[INFO] [stdout] 	Node Ids: []
[INFO] [stdout] 	(No edges)
[INFO] [stdout] 
[INFO] [stdout] DiGraph
[INFO] [stdout] 	Node Ids: [1, 2, 3, 4, 5, 6, 7, 8]
[INFO] [stdout] 	1->2,  1->3,  2->8,  3->5
[INFO] [stdout] 	3->7,  4->3,  5->6,  6->7
[INFO] [stdout] 	8->4
[INFO] [stdout] Unreachable from id 1: []
[INFO] [stdout] Unreachable from id 2: [1]
[INFO] [stdout] Unreachable from id 3: [1, 2, 4, 8]
[INFO] [stdout] Unreachable from id 42: [1, 2, 3, 4, 5, 6, 7, 8]
[INFO] [stdout] (Note that the id is not required to be valid)
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::test_auto_edge_drop' (25) panicked at src/lib.rs:65:45:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Io("Read-only file system (os error 30)")
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5b888654c312 - std[716c9a7a72e5c14e]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5b888654c312 - std[716c9a7a72e5c14e]::backtrace_rs::backtrace::trace_unsynchronized::<std[716c9a7a72e5c14e]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5b888654c312 - std[716c9a7a72e5c14e]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5b888654c312 - <<std[716c9a7a72e5c14e]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[c5ed12ab89cc536a]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5b888656232a - <core[c5ed12ab89cc536a]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5b888656232a - core[c5ed12ab89cc536a]::fmt::write
[INFO] [stdout]    6:     0x5b8886551146 - std[716c9a7a72e5c14e]::io::default_write_fmt::<alloc[9c68fdf4f4f29218]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5b8886551146 - <alloc[9c68fdf4f4f29218]::vec::Vec<u8> as std[716c9a7a72e5c14e]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5b888652a72f - <std[716c9a7a72e5c14e]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5b888652a72f - std[716c9a7a72e5c14e]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5b8886544549 - std[716c9a7a72e5c14e]::panicking::default_hook
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5b88864a9f1e - <alloc[9c68fdf4f4f29218]::boxed::Box<dyn for<'a, 'b> core[c5ed12ab89cc536a]::ops::function::Fn<(&'a std[716c9a7a72e5c14e]::panic::PanicHookInfo<'b>,), Output = ()> + core[c5ed12ab89cc536a]::marker::Sync + core[c5ed12ab89cc536a]::marker::Send> as core[c5ed12ab89cc536a]::ops::function::Fn<(&std[716c9a7a72e5c14e]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x5b88864a9f1e - test[64760d2bdea328cc]::test_main_with_exit_callback::<test[64760d2bdea328cc]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5b8886544702 - <alloc[9c68fdf4f4f29218]::boxed::Box<dyn for<'a, 'b> core[c5ed12ab89cc536a]::ops::function::Fn<(&'a std[716c9a7a72e5c14e]::panic::PanicHookInfo<'b>,), Output = ()> + core[c5ed12ab89cc536a]::marker::Sync + core[c5ed12ab89cc536a]::marker::Send> as core[c5ed12ab89cc536a]::ops::function::Fn<(&std[716c9a7a72e5c14e]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x5b8886544702 - std[716c9a7a72e5c14e]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5b888652a7e8 - std[716c9a7a72e5c14e]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x5b8886522109 - std[716c9a7a72e5c14e]::sys::backtrace::__rust_end_short_backtrace::<std[716c9a7a72e5c14e]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5b888652b63d - __rustc[4f0b026143eab78e]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5b88865629fc - core[c5ed12ab89cc536a]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5b8886562772 - core[c5ed12ab89cc536a]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x5b8886470fb8 - <core[c5ed12ab89cc536a]::result::Result<(), ron[480f9f6fc16e96e0]::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/result.rs:1233:23
[INFO] [stdout]   21:     0x5b8886470fb8 - arboreal[f4b690284c26bc6a]::tests::test_auto_edge_drop
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:65:45
[INFO] [stdout]   22:     0x5b888646f6b7 - arboreal[f4b690284c26bc6a]::tests::test_auto_edge_drop::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:50:29
[INFO] [stdout]   23:     0x5b8886492df6 - <arboreal[f4b690284c26bc6a]::tests::test_auto_edge_drop::{closure#0} as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5b888649e2cb - <fn() -> core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5b888649e2cb - test[64760d2bdea328cc]::__rust_begin_short_backtrace::<core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>, fn() -> core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x5b88864aab2a - test[64760d2bdea328cc]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x5b88864aab2a - <core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x5b88864aab2a - std[716c9a7a72e5c14e]::panicking::catch_unwind::do_call::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}>, core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x5b88864aab2a - std[716c9a7a72e5c14e]::panicking::catch_unwind::<core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>, core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x5b88864aab2a - std[716c9a7a72e5c14e]::panic::catch_unwind::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<test[64760d2bdea328cc]::run_test_in_process::{closure#0}>, core[c5ed12ab89cc536a]::result::Result<(), alloc[9c68fdf4f4f29218]::string::String>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5b88864aab2a - test[64760d2bdea328cc]::run_test_in_process
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x5b88864aab2a - test[64760d2bdea328cc]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x5b88864a4ff4 - test[64760d2bdea328cc]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x5b88864a4ff4 - std[716c9a7a72e5c14e]::sys::backtrace::__rust_begin_short_backtrace::<test[64760d2bdea328cc]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x5b88864ad622 - std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked::<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   36:     0x5b88864ad622 - <core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x5b88864ad622 - std[716c9a7a72e5c14e]::panicking::catch_unwind::do_call::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x5b88864ad622 - std[716c9a7a72e5c14e]::panicking::catch_unwind::<(), core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x5b88864ad622 - std[716c9a7a72e5c14e]::panic::catch_unwind::<core[c5ed12ab89cc536a]::panic::unwind_safe::AssertUnwindSafe<std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5b88864ad622 - std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked::<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   41:     0x5b88864ad622 - <std[716c9a7a72e5c14e]::thread::lifecycle::spawn_unchecked<test[64760d2bdea328cc]::run_test::{closure#1}, ()>::{closure#1} as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5b888654bbbf - <alloc[9c68fdf4f4f29218]::boxed::Box<dyn core[c5ed12ab89cc536a]::ops::function::FnOnce<(), Output = ()> + core[c5ed12ab89cc536a]::marker::Send> as core[c5ed12ab89cc536a]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   43:     0x5b888654bbbf - <std[716c9a7a72e5c14e]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/2fd6efc32704647e64d3d646d21c4c68eae100e4/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   44:     0x76179e633aa4 - <unknown>
[INFO] [stdout]   45:     0x76179e6c0a64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::test_auto_edge_drop
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "68828b6059fc17eae3cd35d3e072db56039a6f12a7d97a9ab18283a341fcde21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68828b6059fc17eae3cd35d3e072db56039a6f12a7d97a9ab18283a341fcde21", kill_on_drop: false }`
[INFO] [stdout] 68828b6059fc17eae3cd35d3e072db56039a6f12a7d97a9ab18283a341fcde21
