[INFO] fetching crate cagra 0.2.0...
[INFO] testing cagra-0.2.0 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate cagra 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cagra 0.2.0 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2/source/rust-toolchain
[INFO] started tweaking crates.io crate cagra 0.2.0
[INFO] finished tweaking crates.io crate cagra 0.2.0
[INFO] tweaked toml for crates.io crate cagra 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6414cb3e5e56bc403defb25a2b7f6ef38a4c823666a1bb87144f188ebbe22585
[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" "6414cb3e5e56bc403defb25a2b7f6ef38a4c823666a1bb87144f188ebbe22585", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6414cb3e5e56bc403defb25a2b7f6ef38a4c823666a1bb87144f188ebbe22585", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6414cb3e5e56bc403defb25a2b7f6ef38a4c823666a1bb87144f188ebbe22585", kill_on_drop: false }`
[INFO] [stdout] 6414cb3e5e56bc403defb25a2b7f6ef38a4c823666a1bb87144f188ebbe22585
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1870905c60f7c33321c768c0ed2a131fa7819a7946e922416e349470830e661
[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" "a1870905c60f7c33321c768c0ed2a131fa7819a7946e922416e349470830e661", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling object v0.25.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling cauchy v0.1.0
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling cagra-parser v0.1.0
[INFO] [stderr]    Compiling cagra v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.66s
[INFO] running `Command { std: "docker" "inspect" "a1870905c60f7c33321c768c0ed2a131fa7819a7946e922416e349470830e661", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1870905c60f7c33321c768c0ed2a131fa7819a7946e922416e349470830e661", kill_on_drop: false }`
[INFO] [stdout] a1870905c60f7c33321c768c0ed2a131fa7819a7946e922416e349470830e661
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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] efb8edc957dcbacd1e775ab43ab002548e5ff69c6e0af49d14398ce8e7263f80
[INFO] running `Command { std: "docker" "start" "-a" "efb8edc957dcbacd1e775ab43ab002548e5ff69c6e0af49d14398ce8e7263f80", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling criterion-plot v0.3.1
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling cagra v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 28.73s
[INFO] running `Command { std: "docker" "inspect" "efb8edc957dcbacd1e775ab43ab002548e5ff69c6e0af49d14398ce8e7263f80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efb8edc957dcbacd1e775ab43ab002548e5ff69c6e0af49d14398ce8e7263f80", kill_on_drop: false }`
[INFO] [stdout] efb8edc957dcbacd1e775ab43ab002548e5ff69c6e0af49d14398ce8e7263f80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3eb9fcb545ebfa41a9f18cf393ece7eec612d72473d8fc1d35f4374a1a155810
[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" "3eb9fcb545ebfa41a9f18cf393ece7eec612d72473d8fc1d35f4374a1a155810", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cagra-9296bf62141c940b)
[INFO] [stderr]      Running tests/div.rs (/opt/rustwide/target/debug/deps/div-fce50ddb703a3c7a)
[INFO] [stdout] test test_div ... ok
[INFO] [stderr]      Running tests/dot.rs (/opt/rustwide/target/debug/deps/dot-06aa885349ef2ca1)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr] error: test failed, to rerun pass '--test dot'
[INFO] [stdout] test dot_output ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- dot_output stdout ----
[INFO] [stdout] Error: Os { code: 30, kind: Other, message: "Read-only file system" }
[INFO] [stdout] 
[INFO] [stdout]    0: failure::backtrace::internal::InternalBacktrace::new
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.8/src/backtrace/internal.rs:46:44
[INFO] [stdout]    1: failure::backtrace::Backtrace::new
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.8/src/backtrace/mod.rs:121:35
[INFO] [stdout]    2: <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.8/src/error/error_impl.rs:19:17
[INFO] [stdout]    3: <failure::error::Error as core::convert::From<F>>::from
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.8/src/error/mod.rs:36:18
[INFO] [stdout]    4: <core::result::Result<T,F> as core::ops::try_trait::FromResidual<core::result::Result<core::convert::Infallible,E>>>::from_residual
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/result.rs:1674:27
[INFO] [stdout]    5: dot::dot_output
[INFO] [stdout]              at tests/dot.rs:12:19
[INFO] [stdout]    6: dot::dot_output::{{closure}}
[INFO] [stdout]              at tests/dot.rs:6:1
[INFO] [stdout]    7: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]    8: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]       test::__rust_begin_short_backtrace
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:577:5
[INFO] [stdout]    9: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]       <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9
[INFO] [stdout]       std::panicking::try::do_call
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40
[INFO] [stdout]       std::panicking::try
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19
[INFO] [stdout]       std::panic::catch_unwind
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14
[INFO] [stdout]       test::run_test_in_process
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:600:18
[INFO] [stdout]       test::run_test::run_test_inner::{{closure}}
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:492:39
[INFO] [stdout]   10: test::run_test::run_test_inner::{{closure}}
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:519:37
[INFO] [stdout]       std::sys_common::backtrace::__rust_begin_short_backtrace
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   11: std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]       <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9
[INFO] [stdout]       std::panicking::try::do_call
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40
[INFO] [stdout]       std::panicking::try
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19
[INFO] [stdout]       std::panic::catch_unwind
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14
[INFO] [stdout]       std::thread::Builder::spawn_unchecked::{{closure}}
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]       core::ops::function::FnOnce::call_once{{vtable.shim}}
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   12: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]       <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]       std::sys::unix::thread::Thread::new::thread_start
[INFO] [stdout]              at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   13: start_thread
[INFO] [stdout]   14: clone
[INFO] [stdout] 
[INFO] [stdout] thread 'dot_output' panicked at 'assertion failed: `(left == right)`
[INFO] [stdout]   left: `1`,
[INFO] [stdout]  right: `0`: the test returned a termination value with a non-zero status code (1) which indicates a failure', /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:193:5
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55e980f44720 - std::backtrace_rs::backtrace::libunwind::trace::h1037ca7e6eeef65c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x55e980f44720 - std::backtrace_rs::backtrace::trace_unsynchronized::haaefac1bc3669450
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55e980f44720 - std::sys_common::backtrace::_print_fmt::h863a6f5e6d995885
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x55e980f44720 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h767e17e1aa7df6a8
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x55e980f66f2c - core::fmt::write::h7aa6cd0067dca82a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x55e980f416e5 - std::io::Write::write_fmt::h6f1a9b91376a1376
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/io/mod.rs:1584:15
[INFO] [stdout]    6:     0x55e980f468ab - std::sys_common::backtrace::_print::h2769edb26a7eb606
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x55e980f468ab - std::sys_common::backtrace::print::ha71f3549862b4cb6
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x55e980f468ab - std::panicking::default_hook::{{closure}}::h95488a3bade217f6
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x55e980f463bc - std::panicking::default_hook::h290aa602c0fb11df
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x55e980f46f51 - std::panicking::rust_panic_with_hook::hf32c4fa635e215f2
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x55e980f46a57 - std::panicking::begin_panic_handler::{{closure}}::h95197ccd88846f7a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x55e980f44bfc - std::sys_common::backtrace::__rust_end_short_backtrace::h7641df9566f7b7d0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x55e980f469b9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x55e980dff991 - core::panicking::panic_fmt::hbe99dddd3092ba3c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x55e980f6592e - core::panicking::assert_failed_inner::h4fdb1013d187f202
[INFO] [stdout]   16:     0x55e980ec339a - core::panicking::assert_failed::h806c16f0ab1f1d2a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/panicking.rs:117:5
[INFO] [stdout]   17:     0x55e980e0e0c8 - test::assert_test_result::hd443e7e325e89890
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:193:5
[INFO] [stdout]   18:     0x55e980e0e555 - dot::dot_output::{{closure}}::h8c38efb49800ea12
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/dot.rs:6:1
[INFO] [stdout]   19:     0x55e980e0d46e - core::ops::function::FnOnce::call_once::h7476ed97f85f7f78
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x55e980e3cf73 - core::ops::function::FnOnce::call_once::h673fbe3f96486fd2
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x55e980e3cf73 - test::__rust_begin_short_backtrace::h8eedc24e104ef6a0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:577:5
[INFO] [stdout]   22:     0x55e980e3ba20 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h028d0969d3f94d78
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   23:     0x55e980e3ba20 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h7634b01590b1722b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9
[INFO] [stdout]   24:     0x55e980e3ba20 - std::panicking::try::do_call::hf74f869706dec63b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   25:     0x55e980e3ba20 - std::panicking::try::hd0b7346ebfaaae44
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   26:     0x55e980e3ba20 - std::panic::catch_unwind::hdbf6904f7c253080
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14
[INFO] [stdout]   27:     0x55e980e3ba20 - test::run_test_in_process::h87e95a014ac91067
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:600:18
[INFO] [stdout]   28:     0x55e980e3ba20 - test::run_test::run_test_inner::{{closure}}::hdd69ae44aaab3470
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:492:39
[INFO] [stdout]   29:     0x55e980e16cf2 - test::run_test::run_test_inner::{{closure}}::hc159305704d5b68a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:519:37
[INFO] [stdout]   30:     0x55e980e16cf2 - std::sys_common::backtrace::__rust_begin_short_backtrace::h33d8a8ad5f788fcc
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   31:     0x55e980e1aa68 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h6181011ddf4b8353
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   32:     0x55e980e1aa68 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hf924ea0a0f25a1c0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9
[INFO] [stdout]   33:     0x55e980e1aa68 - std::panicking::try::do_call::hd58061792d05fa5c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   34:     0x55e980e1aa68 - std::panicking::try::h3080747417e5af37
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   35:     0x55e980e1aa68 - std::panic::catch_unwind::hfeba515dcf36cb66
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14
[INFO] [stdout]   36:     0x55e980e1aa68 - std::thread::Builder::spawn_unchecked::{{closure}}::h29d57a62faff749b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   37:     0x55e980e1aa68 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h44709d312d2a9c59
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   38:     0x55e980f4ba17 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h902e2cf6655e1b0c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   39:     0x55e980f4ba17 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h893a5452154309d1
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   40:     0x55e980f4ba17 - std::sys::unix::thread::Thread::new::thread_start::hdedcb57c96ab37cd
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   41:     0x7fefea4ae609 - start_thread
[INFO] [stdout]   42:     0x7fefea280293 - clone
[INFO] [stdout]   43:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     dot_output
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.41s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3eb9fcb545ebfa41a9f18cf393ece7eec612d72473d8fc1d35f4374a1a155810", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eb9fcb545ebfa41a9f18cf393ece7eec612d72473d8fc1d35f4374a1a155810", kill_on_drop: false }`
[INFO] [stdout] 3eb9fcb545ebfa41a9f18cf393ece7eec612d72473d8fc1d35f4374a1a155810