[INFO] fetching crate graphlang 0.1.3...
[INFO] testing graphlang-0.1.3 against beta-2024-12-08 for beta-1.84.0-4-retry
[INFO] extracting crate graphlang 0.1.3 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate graphlang 0.1.3 on toolchain beta-2024-12-08
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-12-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate graphlang 0.1.3
[INFO] finished tweaking crates.io crate graphlang 0.1.3
[INFO] tweaked toml for crates.io crate graphlang 0.1.3 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate graphlang 0.1.3 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" "+beta-2024-12-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07dc54efcad6770a5eff1259aa2997d60df116fec3b27675d33883ac0533dfa0
[INFO] running `Command { std: "docker" "start" "-a" "07dc54efcad6770a5eff1259aa2997d60df116fec3b27675d33883ac0533dfa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07dc54efcad6770a5eff1259aa2997d60df116fec3b27675d33883ac0533dfa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07dc54efcad6770a5eff1259aa2997d60df116fec3b27675d33883ac0533dfa0", kill_on_drop: false }`
[INFO] [stdout] 07dc54efcad6770a5eff1259aa2997d60df116fec3b27675d33883ac0533dfa0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4208513e999e9dcb91c279adbc3196d2a7033d9cb09e5650943889fb4902a75e
[INFO] running `Command { std: "docker" "start" "-a" "4208513e999e9dcb91c279adbc3196d2a7033d9cb09e5650943889fb4902a75e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling libc v0.2.122
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling dot v0.1.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling os_str_bytes v6.0.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling clap_derive v3.1.7
[INFO] [stderr]    Compiling clap v3.1.8
[INFO] [stderr]    Compiling graphlang v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.21s
[INFO] running `Command { std: "docker" "inspect" "4208513e999e9dcb91c279adbc3196d2a7033d9cb09e5650943889fb4902a75e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4208513e999e9dcb91c279adbc3196d2a7033d9cb09e5650943889fb4902a75e", kill_on_drop: false }`
[INFO] [stdout] 4208513e999e9dcb91c279adbc3196d2a7033d9cb09e5650943889fb4902a75e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 632abc3e22172d912f4b5b0caedf135244204f5e65a63eb482d3032ac0e1a148
[INFO] running `Command { std: "docker" "start" "-a" "632abc3e22172d912f4b5b0caedf135244204f5e65a63eb482d3032ac0e1a148", kill_on_drop: false }`
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling fsio v0.1.3
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling nias v0.5.0
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling envmnt v0.8.4
[INFO] [stderr]    Compiling ci_info v0.10.2
[INFO] [stderr]    Compiling rusty-hook v0.11.2
[INFO] [stderr]    Compiling graphlang v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 8.68s
[INFO] running `Command { std: "docker" "inspect" "632abc3e22172d912f4b5b0caedf135244204f5e65a63eb482d3032ac0e1a148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "632abc3e22172d912f4b5b0caedf135244204f5e65a63eb482d3032ac0e1a148", kill_on_drop: false }`
[INFO] [stdout] 632abc3e22172d912f4b5b0caedf135244204f5e65a63eb482d3032ac0e1a148
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7af2cad3d5b74e3577a03c36823a5990a69698ab3aad6cc4cbc08d36d9ffa060
[INFO] running `Command { std: "docker" "start" "-a" "7af2cad3d5b74e3577a03c36823a5990a69698ab3aad6cc4cbc08d36d9ffa060", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/graphlang-633f0074860421bf)
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test graph::tests::cleanup_edges ... ok
[INFO] [stdout] test graph::tests::node_neighbours ... ok
[INFO] [stdout] test graphgrammar::quitcondition::all_options ... ok
[INFO] [stdout] test graph::tests::graph_difference_used_for_reduced_query_graph_gen ... ok
[INFO] [stdout] test graph::tests::remove ... ok
[INFO] [stdout] test graphgrammar::quitcondition::valid_graph_is_valid ... ok
[INFO] [stdout] test graphoperations::combine_neighbours_with_filter ... ok
[INFO] [stdout] test graphgrammar::quitcondition::new_is_invalid ... ok
[INFO] [stdout] test graphgrammar::quitcondition::timeout_is_valid ... ok
[INFO] [stdout] test graphoperations::combine_neighbours_with_filter_2 ... ok
[INFO] [stdout] test graphgrammar::quitcondition::prodnum_is_valid ... ok
[INFO] [stdout] test graphoperations::tests::simple_nonunique_match ... ok
[INFO] [stdout] test graphoperations::tests::trivial_disconnected_graphs ... ok
[INFO] [stdout] test graphoperations::combine_neighbours_simple ... ok
[INFO] [stdout] test graphgrammar::quitcondition::trivial_production ... ok
[INFO] [stdout] test primitives::tests::deserialize_reference_graph ... ok
[INFO] [stdout] test graph::tests::node_neighbours_extended ... ok
[INFO] [stdout] test predefined::tests::test_predefined_string_grammer_equals_ladder_with_width_1 ... ok
[INFO] [stdout] test graphoperations::tests::simple_unique_match ... ok
[INFO] [stdout] test graphoperations::tests::nonunique_match_with_cycles ... ok
[INFO] [stdout] test predefined::tests::test_predefined_ladder_grammer ... ok
[INFO] [stdout] test predefined::tests::test_predefined_string_grammer ... ok
[INFO] [stdout] test primitives::tests::serialize_and_deserialize_graph ... ok
[INFO] [stdout] test graph::tests::insert ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/graphlang-5b9dfe8b835967af)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/basic_operations.rs (/opt/rustwide/target/debug/deps/basic_operations-ff1095ea373e51c8)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test read_graph_from_file ... ok
[INFO] [stdout] test graphgrammar_from_file_is_usable ... ok
[INFO] [stdout] test serde_of_a_graphgrammar ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests graphlang
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/graph.rs - graph::Graph<I,NL,EL>::cleanup_edges (line 70) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<I,NL,EL>::write_dot_to (line 309) ... FAILED
[INFO] [stdout] test src/predefined.rs - predefined::ladder_grammar (line 119) ... ok
[INFO] [stdout] test src/graphoperations.rs - graphoperations::are_graphs_isomorph (line 210) ... ok
[INFO] [stdout] test src/predefined.rs - predefined::ladder_grammar (line 135) ... ok
[INFO] [stdout] test src/predefined.rs - predefined::string_grammar (line 25) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/graph.rs - graph::Graph<I,NL,EL>::write_dot_to (line 309) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at src/graph.rs:15:8:
[INFO] [stdout] Doc test for write_dot_to works: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5576903062ba - std::backtrace_rs::backtrace::libunwind::trace::h8810477743020387
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x5576903062ba - std::backtrace_rs::backtrace::trace_unsynchronized::h3aa55355dd6c54a6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5576903062ba - std::sys::backtrace::_print_fmt::h8588b0f62410823f
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5576903062ba - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h98c26ac25ffe89bb
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x557690322623 - core::fmt::rt::Argument::fmt::hf95377f4aebd453b
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x557690322623 - core::fmt::write::h0dd5f6e2238c7982
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/mod.rs:1189:21
[INFO] [stdout]    6:     0x557690303f83 - std::io::Write::write_fmt::hc00bff0a88e08857
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/io/mod.rs:1884:15
[INFO] [stdout]    7:     0x557690306102 - std::sys::backtrace::BacktraceLock::print::h5c19c1c038ee186d
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x5576903070cc - std::panicking::default_hook::{{closure}}::h77172f079a1fcb13
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x557690306f12 - std::panicking::default_hook::he5f8e3b203ccddba
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:295:9
[INFO] [stdout]   10:     0x5576903076a7 - std::panicking::rust_panic_with_hook::h53863d4e9018df39
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:801:13
[INFO] [stdout]   11:     0x55769030753a - std::panicking::begin_panic_handler::{{closure}}::h67280e6fa0757873
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:674:13
[INFO] [stdout]   12:     0x557690306799 - std::sys::backtrace::__rust_end_short_backtrace::h1dac3f54d6fbbeb2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   13:     0x5576903071cc - rust_begin_unwind
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:665:5
[INFO] [stdout]   14:     0x5576902cb0f0 - core::panicking::panic_fmt::h6792bd1b2bf01041
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panicking.rs:76:14
[INFO] [stdout]   15:     0x5576902cb506 - core::result::unwrap_failed::h05e0602ed34287c5
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/result.rs:1699:5
[INFO] [stdout]   16:     0x5576902cf4b3 - core::result::Result<T,E>::expect::h6a371239136aeb8f
[INFO] [stdout]   17:     0x5576902d0561 - rust_out::main::_doctest_main_src_graph_rs_309_0::h3ec47c9955f6b155
[INFO] [stdout]   18:     0x5576902d0536 - rust_out::main::h57eefffa92e38ed0
[INFO] [stdout]   19:     0x5576902ce8e3 - core::ops::function::FnOnce::call_once::hcb3872443a25b5b7
[INFO] [stdout]   20:     0x5576902ce6e6 - std::sys::backtrace::__rust_begin_short_backtrace::hb8f53f53663d2e9e
[INFO] [stdout]   21:     0x5576902ce619 - std::rt::lang_start::{{closure}}::h0d6bdb8cb611c7e9
[INFO] [stdout]   22:     0x5576903022f7 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hba2470d01d3f5e41
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:284:13
[INFO] [stdout]   23:     0x5576903022f7 - std::panicking::try::do_call::hc063fb73159aab72
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40
[INFO] [stdout]   24:     0x5576903022f7 - std::panicking::try::h2767c6d245d3a3bb
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19
[INFO] [stdout]   25:     0x5576903022f7 - std::panic::catch_unwind::h061c6ef75790da63
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14
[INFO] [stdout]   26:     0x5576903022f7 - std::rt::lang_start_internal::{{closure}}::h5c5e35b11a4b8c4e
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/rt.rs:174:48
[INFO] [stdout]   27:     0x5576903022f7 - std::panicking::try::do_call::h705e99690a8109cc
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40
[INFO] [stdout]   28:     0x5576903022f7 - std::panicking::try::he5f4452754ed9a34
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19
[INFO] [stdout]   29:     0x5576903022f7 - std::panic::catch_unwind::h5db61b3bcbe883e5
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14
[INFO] [stdout]   30:     0x5576903022f7 - std::rt::lang_start_internal::h81da9b59bab665c6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/rt.rs:174:20
[INFO] [stdout]   31:     0x5576902ce5f7 - std::rt::lang_start::h2798034e47ddebf9
[INFO] [stdout]   32:     0x5576902d07b5 - main
[INFO] [stdout]   33:     0x7d74dc017d90 - <unknown>
[INFO] [stdout]   34:     0x7d74dc017e40 - __libc_start_main
[INFO] [stdout]   35:     0x5576902cb765 - _start
[INFO] [stdout]   36:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/graph.rs - graph::Graph<I,NL,EL>::write_dot_to (line 309)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 5 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.91s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "7af2cad3d5b74e3577a03c36823a5990a69698ab3aad6cc4cbc08d36d9ffa060", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7af2cad3d5b74e3577a03c36823a5990a69698ab3aad6cc4cbc08d36d9ffa060", kill_on_drop: false }`
[INFO] [stdout] 7af2cad3d5b74e3577a03c36823a5990a69698ab3aad6cc4cbc08d36d9ffa060
