[INFO] fetching crate arboreal 0.0.4...
[INFO] testing arboreal-0.0.4 against 1.90.0 for beta-1.91-2
[INFO] extracting crate arboreal 0.0.4 into /workspace/builds/worker-3-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-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate arboreal 0.0.4 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ron v0.10.1
[INFO] [stderr]   Downloaded fixed_deque v1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c3eba0109db85a1dc0461dabf5edcd1ba2fadbf541f3a58f481e5af4bc7ee00
[INFO] running `Command { std: "docker" "start" "-a" "4c3eba0109db85a1dc0461dabf5edcd1ba2fadbf541f3a58f481e5af4bc7ee00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c3eba0109db85a1dc0461dabf5edcd1ba2fadbf541f3a58f481e5af4bc7ee00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c3eba0109db85a1dc0461dabf5edcd1ba2fadbf541f3a58f481e5af4bc7ee00", kill_on_drop: false }`
[INFO] [stdout] 4c3eba0109db85a1dc0461dabf5edcd1ba2fadbf541f3a58f481e5af4bc7ee00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a11e52d1af151581d4eeb22b0fcf8803ebcaa4f0ffe9210c69936489cb2877e
[INFO] running `Command { std: "docker" "start" "-a" "5a11e52d1af151581d4eeb22b0fcf8803ebcaa4f0ffe9210c69936489cb2877e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling fixed_deque v1.3.0
[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 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)]` 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)]` 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 12.45s
[INFO] running `Command { std: "docker" "inspect" "5a11e52d1af151581d4eeb22b0fcf8803ebcaa4f0ffe9210c69936489cb2877e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a11e52d1af151581d4eeb22b0fcf8803ebcaa4f0ffe9210c69936489cb2877e", kill_on_drop: false }`
[INFO] [stdout] 5a11e52d1af151581d4eeb22b0fcf8803ebcaa4f0ffe9210c69936489cb2877e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4675c6c004646a39dc3ce3dcf2385291e4149877e109e53ad29c56bfb286726b
[INFO] running `Command { std: "docker" "start" "-a" "4675c6c004646a39dc3ce3dcf2385291e4149877e109e53ad29c56bfb286726b", kill_on_drop: false }`
[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)]` 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)]` 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] [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)]` 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)]` 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 1.10s
[INFO] running `Command { std: "docker" "inspect" "4675c6c004646a39dc3ce3dcf2385291e4149877e109e53ad29c56bfb286726b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4675c6c004646a39dc3ce3dcf2385291e4149877e109e53ad29c56bfb286726b", kill_on_drop: false }`
[INFO] [stdout] 4675c6c004646a39dc3ce3dcf2385291e4149877e109e53ad29c56bfb286726b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c09da0199f8c29036488750a509107752fd2888d7d4b38c65d4707b7c3b45bb7
[INFO] running `Command { std: "docker" "start" "-a" "c09da0199f8c29036488750a509107752fd2888d7d4b38c65d4707b7c3b45bb7", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::graph_base::graph_ref`
[INFO] [stdout] 
[INFO] [stderr]  --> src/digraph/digraph_impl.rs:6:5
[INFO] [stdout] running 3 tests
[INFO] [stderr]   |
[INFO] [stdout] test demos::demo_extend_graph ... ignored, run to show usage with adding and removing nodes/edges
[INFO] [stderr] 6 | use crate::graph_base::graph_ref;
[INFO] [stdout] test tests::test_valid ... ok
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` 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)]` 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 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/arboreal-5c502f967ffc84be)
[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' 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:     0x62f42a20dfd2 - std::backtrace_rs::backtrace::libunwind::trace::h2d45396358f41939
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x62f42a20dfd2 - std::backtrace_rs::backtrace::trace_unsynchronized::hffcefc0b67f1d6e2
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x62f42a20dfd2 - std::sys::backtrace::_print_fmt::hd72f71d23b436b92
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x62f42a20dfd2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hdcfcb6d4c8489523
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x62f42a235353 - core::fmt::rt::Argument::fmt::h2c56b3114963061a
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x62f42a235353 - core::fmt::write::h8a494366950f23bb
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x62f42a20aea3 - std::io::default_write_fmt::h7b8824096454f323
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x62f42a20aea3 - std::io::Write::write_fmt::h4e71294925c334d0
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x62f42a20de22 - std::sys::backtrace::BacktraceLock::print::hb2a626a81e06b2dc
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x62f42a20f5f9 - std::panicking::default_hook::{{closure}}::h4f78485264f12d10
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x62f42a20f42e - std::panicking::default_hook::h2c66fc99e962531d
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x62f42a1a0c84 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hb6bd65493727d71a
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x62f42a1a0c84 - test::test_main_with_exit_callback::{{closure}}::h60217ec76a0ece4a
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x62f42a20ffce - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h318e4efb8c1a5689
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x62f42a20ffce - std::panicking::rust_panic_with_hook::h33ac55f64bbd807d
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x62f42a20fd9a - std::panicking::begin_panic_handler::{{closure}}::h30e7cb89678a57fe
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:706:13
[INFO] [stdout]   16:     0x62f42a20e4c9 - std::sys::backtrace::__rust_end_short_backtrace::hed60f27456c16ced
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x62f42a20fa2d - __rustc[de2ca18b4c54d5b8]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x62f42a233dd0 - core::panicking::panic_fmt::h62f63d096dd276af
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x62f42a234206 - core::result::unwrap_failed::h95bc3f5a607b2c95
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/result.rs:1765:5
[INFO] [stdout]   20:     0x62f42a167245 - core::result::Result<T,E>::unwrap::h9fa0abdb797668e0
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/result.rs:1167:23
[INFO] [stdout]   21:     0x62f42a167245 - arboreal::tests::test_auto_edge_drop::h82827f3d4ffb4e68
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:65:45
[INFO] [stdout]   22:     0x62f42a166c47 - arboreal::tests::test_auto_edge_drop::{{closure}}::hb96146eafdc64ff9
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:50:29
[INFO] [stdout]   23:     0x62f42a153a66 - core::ops::function::FnOnce::call_once::h60f7b029dd3c9d2e
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   24:     0x62f42a1a64eb - core::ops::function::FnOnce::call_once::h1f9474f1347fff52
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   25:     0x62f42a1a64eb - test::__rust_begin_short_backtrace::ha52ab26e77157f03
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:648:18
[INFO] [stdout]   26:     0x62f42a1a5625 - test::run_test_in_process::{{closure}}::h229c1a11a50b261f
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:671:74
[INFO] [stdout]   27:     0x62f42a1a5625 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h78821afbf97b39a9
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x62f42a1a5625 - std::panicking::catch_unwind::do_call::h53abf3ed5bd32ba3
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stdout]   29:     0x62f42a1a5625 - std::panicking::catch_unwind::h6deb5fe1e91873c9
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stdout]   30:     0x62f42a1a5625 - std::panic::catch_unwind::hea0829b6b565654b
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x62f42a1a5625 - test::run_test_in_process::hdc44dfecea3db21b
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:671:27
[INFO] [stdout]   32:     0x62f42a1a5625 - test::run_test::{{closure}}::h0364ba59bf23f652
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:592:43
[INFO] [stdout]   33:     0x62f42a169224 - test::run_test::{{closure}}::h32730b304eec05da
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:622:41
[INFO] [stdout]   34:     0x62f42a169224 - std::sys::backtrace::__rust_begin_short_backtrace::h177cb952fc54ad2c
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x62f42a16cbfa - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h119d903520007597
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x62f42a16cbfa - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hab88401d606702a6
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x62f42a16cbfa - std::panicking::catch_unwind::do_call::h163fe12cca9901c2
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stdout]   38:     0x62f42a16cbfa - std::panicking::catch_unwind::he81557d0e17cc1bc
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stdout]   39:     0x62f42a16cbfa - std::panic::catch_unwind::hc2b8e79c20593955
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x62f42a16cbfa - std::thread::Builder::spawn_unchecked_::{{closure}}::hfa6b4978e07815cc
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x62f42a16cbfa - core::ops::function::FnOnce::call_once{{vtable.shim}}::hddcd7484a13fd793
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   42:     0x62f42a212f4f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5924238c754de3b8
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   43:     0x62f42a212f4f - std::sys::pal::unix::thread::Thread::new::thread_start::hb6e99e73da4d28f8
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/pal/unix/thread.rs:107:17
[INFO] [stdout]   44:     0x7b1233463aa4 - <unknown>
[INFO] [stdout]   45:     0x7b12334f0a34 - 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 0.02s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "c09da0199f8c29036488750a509107752fd2888d7d4b38c65d4707b7c3b45bb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c09da0199f8c29036488750a509107752fd2888d7d4b38c65d4707b7c3b45bb7", kill_on_drop: false }`
[INFO] [stdout] c09da0199f8c29036488750a509107752fd2888d7d4b38c65d4707b7c3b45bb7
