[INFO] fetching crate petgraph-evcxr 0.2.0...
[INFO] testing petgraph-evcxr-0.2.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate petgraph-evcxr 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate petgraph-evcxr 0.2.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate petgraph-evcxr 0.2.0
[INFO] finished tweaking crates.io crate petgraph-evcxr 0.2.0
[INFO] tweaked toml for crates.io crate petgraph-evcxr 0.2.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5926b36f0ce9b0a1b6186dd51dd045c43b6b99dcb6b072e72ca70ed31350004
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a5926b36f0ce9b0a1b6186dd51dd045c43b6b99dcb6b072e72ca70ed31350004", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5926b36f0ce9b0a1b6186dd51dd045c43b6b99dcb6b072e72ca70ed31350004", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5926b36f0ce9b0a1b6186dd51dd045c43b6b99dcb6b072e72ca70ed31350004", kill_on_drop: false }`
[INFO] [stdout] a5926b36f0ce9b0a1b6186dd51dd045c43b6b99dcb6b072e72ca70ed31350004
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a20369b5407a389c7c596a74344f55052155d3aaeaa66655a0d2889e2462e15c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a20369b5407a389c7c596a74344f55052155d3aaeaa66655a0d2889e2462e15c", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling petgraph-evcxr v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.68s
[INFO] running `Command { std: "docker" "inspect" "a20369b5407a389c7c596a74344f55052155d3aaeaa66655a0d2889e2462e15c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a20369b5407a389c7c596a74344f55052155d3aaeaa66655a0d2889e2462e15c", kill_on_drop: false }`
[INFO] [stdout] a20369b5407a389c7c596a74344f55052155d3aaeaa66655a0d2889e2462e15c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f4701e3cbcfbc40c78956e3ade433fc76052dcdef077408dbd87666715bf0312
[INFO] running `Command { std: "docker" "start" "-a" "f4701e3cbcfbc40c78956e3ade433fc76052dcdef077408dbd87666715bf0312", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling petgraph-evcxr v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "f4701e3cbcfbc40c78956e3ade433fc76052dcdef077408dbd87666715bf0312", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4701e3cbcfbc40c78956e3ade433fc76052dcdef077408dbd87666715bf0312", kill_on_drop: false }`
[INFO] [stdout] f4701e3cbcfbc40c78956e3ade433fc76052dcdef077408dbd87666715bf0312
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fbb557349a40dcafe51c4d210868e445718916cdba81e5bf350c83b9999c4712
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fbb557349a40dcafe51c4d210868e445718916cdba81e5bf350c83b9999c4712", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/petgraph_evcxr-d321f241a310efa0
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests petgraph-evcxr
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - draw_dot (line 14) ... FAILED
[INFO] [stdout] test src/lib.rs - draw_graph (line 48) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - draw_dot (line 14) stdout ----
[INFO] [stdout] Test executable failed (exit code 101).
[INFO] [stdout] 
[INFO] [stdout] stdout:
[INFO] [stdout] EVCXR_BEGIN_CONTENT image/png
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at 'Error running graphviz dot is graphviz installed?: Os { code: 2, kind: NotFound, message: "No such file or directory" }', /opt/rustwide/workdir/src/lib.rs:33:10
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55a74d619650 - std::backtrace_rs::backtrace::libunwind::trace::h577ea05e9ca4629a
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stdout]    1:     0x55a74d619650 - std::backtrace_rs::backtrace::trace_unsynchronized::h50b9b72b84c7dd56
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55a74d619650 - std::sys_common::backtrace::_print_fmt::h6541cf9823837fac
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:79
[INFO] [stdout]    3:     0x55a74d619650 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf64fbff071026df5
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:58
[INFO] [stdout]    4:     0x55a74d6367dc - core::fmt::write::h9ddafa4860d8adff
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/fmt/mod.rs:1082
[INFO] [stdout]    5:     0x55a74d617077 - std::io::Write::write_fmt::h1d2ee292d2b65481
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/io/mod.rs:1514
[INFO] [stdout]    6:     0x55a74d61b720 - std::sys_common::backtrace::_print::ha25f9ff5080d886d
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:61
[INFO] [stdout]    7:     0x55a74d61b720 - std::sys_common::backtrace::print::h213e8aa8dc5405c0
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:48
[INFO] [stdout]    8:     0x55a74d61b720 - std::panicking::default_hook::{{closure}}::h6482fae49ef9d963
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:200
[INFO] [stdout]    9:     0x55a74d61b46c - std::panicking::default_hook::he30ad7589e0970f9
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:219
[INFO] [stdout]   10:     0x55a74d61bd83 - std::panicking::rust_panic_with_hook::haa1ed36ada4ffb03
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:569
[INFO] [stdout]   11:     0x55a74d61b959 - std::panicking::begin_panic_handler::{{closure}}::h7001af1bb21aeaeb
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:476
[INFO] [stdout]   12:     0x55a74d619adc - std::sys_common::backtrace::__rust_end_short_backtrace::h39910f557f5f2367
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:153
[INFO] [stdout]   13:     0x55a74d61b919 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:475
[INFO] [stdout]   14:     0x55a74d635b01 - core::panicking::panic_fmt::h4e2659771ebc78eb
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/panicking.rs:85
[INFO] [stdout]   15:     0x55a74d635923 - core::option::expect_none_failed::h448b58a024c2c33a
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/option.rs:1221
[INFO] [stdout]   16:     0x55a74d5f6d8d - core::result::Result<T,E>::expect::hf9cb68361156d2d8
[INFO] [stdout]   17:     0x55a74d5f275d - petgraph_evcxr::draw_dot::h56b03b785a4f6d2c
[INFO] [stdout]   18:     0x55a74d5fb665 - rust_out::main::h405f65324f7b53be
[INFO] [stdout]   19:     0x55a74d5f3ef3 - core::ops::function::FnOnce::call_once::hdcd857a6fc725660
[INFO] [stdout]   20:     0x55a74d5f2de9 - std::sys_common::backtrace::__rust_begin_short_backtrace::h58530cce963ea820
[INFO] [stdout]   21:     0x55a74d5f32e9 - std::rt::lang_start::{{closure}}::had844b611966ddaf
[INFO] [stdout]   22:     0x55a74d61c181 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h6a3209f124be2235
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:259
[INFO] [stdout]   23:     0x55a74d61c181 - std::panicking::try::do_call::h88ce358792b64df0
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373
[INFO] [stdout]   24:     0x55a74d61c181 - std::panicking::try::h6311c259678e50fc
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337
[INFO] [stdout]   25:     0x55a74d61c181 - std::panic::catch_unwind::h56c5716807d659a1
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379
[INFO] [stdout]   26:     0x55a74d61c181 - std::rt::lang_start_internal::h73711f37ecfcb277
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/rt.rs:51
[INFO] [stdout]   27:     0x55a74d5f32c8 - std::rt::lang_start::h1b0fb7b0bf978bb4
[INFO] [stdout]   28:     0x55a74d5fb68b - main
[INFO] [stdout]   29:     0x7f58e3a220b3 - __libc_start_main
[INFO] [stdout]   30:     0x55a74d5f20ae - _start
[INFO] [stdout]   31:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - draw_graph (line 48) stdout ----
[INFO] [stdout] Test executable failed (exit code 101).
[INFO] [stdout] 
[INFO] [stdout] stdout:
[INFO] [stdout] EVCXR_BEGIN_CONTENT image/png
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at 'Error running graphviz dot is graphviz installed?: Os { code: 2, kind: NotFound, message: "No such file or directory" }', /opt/rustwide/workdir/src/lib.rs:33:10
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55b57f4d9250 - std::backtrace_rs::backtrace::libunwind::trace::h577ea05e9ca4629a
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stdout]    1:     0x55b57f4d9250 - std::backtrace_rs::backtrace::trace_unsynchronized::h50b9b72b84c7dd56
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55b57f4d9250 - std::sys_common::backtrace::_print_fmt::h6541cf9823837fac
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:79
[INFO] [stdout]    3:     0x55b57f4d9250 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf64fbff071026df5
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:58
[INFO] [stdout]    4:     0x55b57f4f63dc - core::fmt::write::h9ddafa4860d8adff
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/fmt/mod.rs:1082
[INFO] [stdout]    5:     0x55b57f4d6c77 - std::io::Write::write_fmt::h1d2ee292d2b65481
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/io/mod.rs:1514
[INFO] [stdout]    6:     0x55b57f4db320 - std::sys_common::backtrace::_print::ha25f9ff5080d886d
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:61
[INFO] [stdout]    7:     0x55b57f4db320 - std::sys_common::backtrace::print::h213e8aa8dc5405c0
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:48
[INFO] [stdout]    8:     0x55b57f4db320 - std::panicking::default_hook::{{closure}}::h6482fae49ef9d963
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:200
[INFO] [stdout]    9:     0x55b57f4db06c - std::panicking::default_hook::he30ad7589e0970f9
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:219
[INFO] [stdout]   10:     0x55b57f4db983 - std::panicking::rust_panic_with_hook::haa1ed36ada4ffb03
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:569
[INFO] [stdout]   11:     0x55b57f4db559 - std::panicking::begin_panic_handler::{{closure}}::h7001af1bb21aeaeb
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:476
[INFO] [stdout]   12:     0x55b57f4d96dc - std::sys_common::backtrace::__rust_end_short_backtrace::h39910f557f5f2367
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:153
[INFO] [stdout]   13:     0x55b57f4db519 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:475
[INFO] [stdout]   14:     0x55b57f4f5701 - core::panicking::panic_fmt::h4e2659771ebc78eb
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/panicking.rs:85
[INFO] [stdout]   15:     0x55b57f4f5523 - core::option::expect_none_failed::h448b58a024c2c33a
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/option.rs:1221
[INFO] [stdout]   16:     0x55b57f4b0fad - core::result::Result<T,E>::expect::hf9cb68361156d2d8
[INFO] [stdout]   17:     0x55b57f4aa966 - petgraph_evcxr::draw_dot::haf1057212d19701a
[INFO] [stdout]   18:     0x55b57f4aa815 - petgraph_evcxr::draw_graph::hd2ad3b2708a0cdf9
[INFO] [stdout]   19:     0x55b57f4ba049 - rust_out::main::h405f65324f7b53be
[INFO] [stdout]   20:     0x55b57f4ac813 - core::ops::function::FnOnce::call_once::hdcd857a6fc725660
[INFO] [stdout]   21:     0x55b57f4aafe9 - std::sys_common::backtrace::__rust_begin_short_backtrace::h58530cce963ea820
[INFO] [stdout]   22:     0x55b57f4ab4e9 - std::rt::lang_start::{{closure}}::had844b611966ddaf
[INFO] [stdout]   23:     0x55b57f4dbd81 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h6a3209f124be2235
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:259
[INFO] [stdout]   24:     0x55b57f4dbd81 - std::panicking::try::do_call::h88ce358792b64df0
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373
[INFO] [stdout]   25:     0x55b57f4dbd81 - std::panicking::try::h6311c259678e50fc
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337
[INFO] [stdout]   26:     0x55b57f4dbd81 - std::panic::catch_unwind::h56c5716807d659a1
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379
[INFO] [stdout]   27:     0x55b57f4dbd81 - std::rt::lang_start_internal::h73711f37ecfcb277
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/rt.rs:51
[INFO] [stdout]   28:     0x55b57f4ab4c8 - std::rt::lang_start::h1b0fb7b0bf978bb4
[INFO] [stdout]   29:     0x55b57f4ba08b - main
[INFO] [stdout]   30:     0x7f5227e3c0b3 - __libc_start_main
[INFO] [stdout]   31:     0x55b57f4aa0ae - _start
[INFO] [stdout]   32:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - draw_dot (line 14)
[INFO] [stdout]     src/lib.rs - draw_graph (line 48)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "fbb557349a40dcafe51c4d210868e445718916cdba81e5bf350c83b9999c4712", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbb557349a40dcafe51c4d210868e445718916cdba81e5bf350c83b9999c4712", kill_on_drop: false }`
[INFO] [stdout] fbb557349a40dcafe51c4d210868e445718916cdba81e5bf350c83b9999c4712
