[INFO] fetching crate cargo-mutants 0.0.4...
[INFO] testing cargo-mutants-0.0.4 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate cargo-mutants 0.0.4 into /workspace/builds/worker-38/source
[INFO] validating manifest of crates.io crate cargo-mutants 0.0.4 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-mutants 0.0.4
[INFO] finished tweaking crates.io crate cargo-mutants 0.0.4
[INFO] tweaked toml for crates.io crate cargo-mutants 0.0.4 written to /workspace/builds/worker-38/source/Cargo.toml
[INFO] crate crates.io crate cargo-mutants 0.0.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cbfd06986fc2498942796d270a2b38261c307c15bb529bd1517f8949e9ff792c
[INFO] running `Command { std: "docker" "start" "-a" "cbfd06986fc2498942796d270a2b38261c307c15bb529bd1517f8949e9ff792c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbfd06986fc2498942796d270a2b38261c307c15bb529bd1517f8949e9ff792c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbfd06986fc2498942796d270a2b38261c307c15bb529bd1517f8949e9ff792c", kill_on_drop: false }`
[INFO] [stdout] cbfd06986fc2498942796d270a2b38261c307c15bb529bd1517f8949e9ff792c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b21459d5b2e25a1d9df32421fbd1c5e19f7ea5bd00eafa05209300a19cbcf4ec
[INFO] running `Command { std: "docker" "start" "-a" "b21459d5b2e25a1d9df32421fbd1c5e19f7ea5bd00eafa05209300a19cbcf4ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.106
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling serde_json v1.0.69
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling argh_shared v0.1.6
[INFO] [stderr]    Compiling anyhow v1.0.45
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling similar v2.1.0
[INFO] [stderr]    Compiling path-slash v0.1.4
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling filetime v0.2.15
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling cp_r v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling console v0.14.1
[INFO] [stderr]    Compiling indicatif v0.16.2
[INFO] [stderr]    Compiling argh_derive v0.1.6
[INFO] [stderr]    Compiling argh v0.1.6
[INFO] [stderr]    Compiling cargo-mutants v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.18s
[INFO] running `Command { std: "docker" "inspect" "b21459d5b2e25a1d9df32421fbd1c5e19f7ea5bd00eafa05209300a19cbcf4ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b21459d5b2e25a1d9df32421fbd1c5e19f7ea5bd00eafa05209300a19cbcf4ec", kill_on_drop: false }`
[INFO] [stdout] b21459d5b2e25a1d9df32421fbd1c5e19f7ea5bd00eafa05209300a19cbcf4ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36bdb07865fc47e217e7fc4ad51a7f0dca469dd2d6ba2fa962d482ddd5247466
[INFO] running `Command { std: "docker" "start" "-a" "36bdb07865fc47e217e7fc4ad51a7f0dca469dd2d6ba2fa962d482ddd5247466", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling predicates-core v1.0.2
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling termtree v0.2.3
[INFO] [stderr]    Compiling difflib v0.4.0
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling similar v1.3.0
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling predicates-tree v1.0.4
[INFO] [stderr]    Compiling pretty_assertions v0.7.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling serde_yaml v0.8.21
[INFO] [stderr]    Compiling float-cmp v0.9.0
[INFO] [stderr]    Compiling predicates v2.0.3
[INFO] [stderr]    Compiling insta v1.8.0
[INFO] [stderr]    Compiling assert_cmd v2.0.2
[INFO] [stderr]    Compiling cargo-mutants v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.78s
[INFO] running `Command { std: "docker" "inspect" "36bdb07865fc47e217e7fc4ad51a7f0dca469dd2d6ba2fa962d482ddd5247466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36bdb07865fc47e217e7fc4ad51a7f0dca469dd2d6ba2fa962d482ddd5247466", kill_on_drop: false }`
[INFO] [stdout] 36bdb07865fc47e217e7fc4ad51a7f0dca469dd2d6ba2fa962d482ddd5247466
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] af07b302d38d4f1d3a7118578b29d880c4a8f2f12f4987763d34a230930e8da2
[INFO] running `Command { std: "docker" "start" "-a" "af07b302d38d4f1d3a7118578b29d880c4a8f2f12f4987763d34a230930e8da2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.26s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/cargo_mutants-107b03a3aa026b4b)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test textedit::test::replace_treats_crlf_as_part_of_last_column ... ok
[INFO] [stdout] test textedit::test::test_replace_region ... ok
[INFO] [stdout] test mutate::test::filter_by_attributes ... FAILED
[INFO] [stdout] test mutate::test::path_is_result ... ok
[INFO] [stdout] test mutate::test::discover_mutations ... FAILED
[INFO] [stdout] test mutate::test::mutate_factorial ... FAILED
[INFO] [stdout] test source::test::error_opening_subdirectory_of_crate ... ok
[INFO] [stdout] test source::test::error_opening_outside_of_crate ... ok
[INFO] [stdout] test source::test::source_files_in_testdata_factorial ... FAILED
[INFO] [stderr] error: test failed, to rerun pass '--bin cargo-mutants'
[INFO] [stdout] test output::test::delete_existing_logs ... ok
[INFO] [stdout] test source::test::source_file_normalizes_crlf ... ok
[INFO] [stdout] test output::test::create ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- mutate::test::filter_by_attributes stdout ----
[INFO] [stdout] thread 'mutate::test::filter_by_attributes' panicked at 'called `Result::unwrap()` on an `Err` value: failed to read source of "testdata/tree/could_hang/src/lib.rs"
[INFO] [stdout] 
[INFO] [stdout] Caused by:
[INFO] [stdout]     No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] Stack backtrace:
[INFO] [stdout]    0: <E as anyhow::context::ext::StdError>::ext_context
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/anyhow-1.0.45/src/context.rs:27:29
[INFO] [stdout]    1: anyhow::context::<impl anyhow::Context<T,E> for core::result::Result<T,E>>::with_context::{{closure}}
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/anyhow-1.0.45/src/context.rs:58:30
[INFO] [stdout]    2: core::result::Result<T,E>::map_err
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/result.rs:853:27
[INFO] [stdout]    3: anyhow::context::<impl anyhow::Context<T,E> for core::result::Result<T,E>>::with_context
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/anyhow-1.0.45/src/context.rs:58:9
[INFO] [stdout]    4: cargo_mutants::source::SourceFile::new
[INFO] [stdout]              at ./src/source.rs:36:20
[INFO] [stdout]    5: cargo_mutants::mutate::test::filter_by_attributes
[INFO] [stdout]              at ./src/mutate.rs:362:27
[INFO] [stdout]    6: cargo_mutants::mutate::test::filter_by_attributes::{{closure}}
[INFO] [stdout]              at ./src/mutate.rs:361:5
[INFO] [stdout]    7: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]    8: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]    9: test::__rust_begin_short_backtrace
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:585:5
[INFO] [stdout]   10: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   11: <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   12: std::panicking::try::do_call
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40
[INFO] [stdout]   13: std::panicking::try
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19
[INFO] [stdout]   14: std::panic::catch_unwind
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14
[INFO] [stdout]   15: test::run_test_in_process
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:608:18
[INFO] [stdout]   16: test::run_test::run_test_inner::{{closure}}
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:500:39
[INFO] [stdout]   17: test::run_test::run_test_inner::{{closure}}
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:527:37
[INFO] [stdout]   18: std::sys_common::backtrace::__rust_begin_short_backtrace
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:123:18
[INFO] [stdout]   19: std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:484:17
[INFO] [stdout]   20: <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   21: std::panicking::try::do_call
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40
[INFO] [stdout]   22: std::panicking::try
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19
[INFO] [stdout]   23: std::panic::catch_unwind
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14
[INFO] [stdout]   24: std::thread::Builder::spawn_unchecked::{{closure}}
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:483:30
[INFO] [stdout]   25: core::ops::function::FnOnce::call_once{{vtable.shim}}
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   26: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   27: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   28: std::sys::unix::thread::Thread::new::thread_start
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys/unix/thread.rs:106:17
[INFO] [stdout]   29: start_thread
[INFO] [stdout]   30: clone', src/mutate.rs:366:10
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x558ef15fb32c - std::backtrace_rs::backtrace::libunwind::trace::h793e05efd273d0f4
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stdout]    1:     0x558ef15fb32c - std::backtrace_rs::backtrace::trace_unsynchronized::h640b7b86ff610c77
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x558ef15fb32c - std::sys_common::backtrace::_print_fmt::h362fa2a4f354f877
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x558ef15fb32c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf439e5ed84c74abd
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x558ef1620fac - core::fmt::write::h72801a82c94e6ff1
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/fmt/mod.rs:1149:17
[INFO] [stdout]    5:     0x558ef15f68a5 - std::io::Write::write_fmt::h54337adeb3504c03
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/io/mod.rs:1697:15
[INFO] [stdout]    6:     0x558ef15fd3f0 - std::sys_common::backtrace::_print::hb29ddd998d02631c
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x558ef15fd3f0 - std::sys_common::backtrace::print::h81965e3d7c90fbb6
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x558ef15fd3f0 - std::panicking::default_hook::{{closure}}::h84db205ab6674b38
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:211:50
[INFO] [stdout]    9:     0x558ef15fcfd6 - std::panicking::default_hook::h1bf8bb4159936bca
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:225:9
[INFO] [stdout]   10:     0x558ef15fdaa4 - std::panicking::rust_panic_with_hook::hf8e86850fbbd03b1
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:606:17
[INFO] [stdout]   11:     0x558ef15fd580 - std::panicking::begin_panic_handler::{{closure}}::h590a0d6060ff866e
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:502:13
[INFO] [stdout]   12:     0x558ef15fb7e4 - std::sys_common::backtrace::__rust_end_short_backtrace::h260b8bd1c848a03c
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:139:18
[INFO] [stdout]   13:     0x558ef15fd4e9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:498:5
[INFO] [stdout]   14:     0x558ef11d7ef1 - core::panicking::panic_fmt::h7b8580d81fcbbacd
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panicking.rs:106:14
[INFO] [stdout]   15:     0x558ef11d7fe3 - core::result::unwrap_failed::h885d3f7beb571353
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/result.rs:1613:5
[INFO] [stdout]   16:     0x558ef1203d0b - core::result::Result<T,E>::unwrap::hd8c4fde1e3387e6b
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/result.rs:1295:23
[INFO] [stdout]   17:     0x558ef11f1252 - cargo_mutants::mutate::test::filter_by_attributes::h9a1f29db6d9bca48
[INFO] [stdout]                                at /opt/rustwide/workdir/src/mutate.rs:362:27
[INFO] [stdout]   18:     0x558ef11f117a - cargo_mutants::mutate::test::filter_by_attributes::{{closure}}::h9cb1b90c2aa1abf6
[INFO] [stdout]                                at /opt/rustwide/workdir/src/mutate.rs:361:5
[INFO] [stdout]   19:     0x558ef11f6fce - core::ops::function::FnOnce::call_once::h249ebba464d2164c
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x558ef13af1f3 - core::ops::function::FnOnce::call_once::h24a32b9da1a40fdb
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x558ef13af1f3 - test::__rust_begin_short_backtrace::h3c3a0492fb4a12eb
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:585:5
[INFO] [stdout]   22:     0x558ef13ade07 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h9a8e38435f73d5e0
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   23:     0x558ef13ade07 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb23d7496a0e6d1b4
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   24:     0x558ef13ade07 - std::panicking::try::do_call::ha2bb9825b32d2cc2
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40
[INFO] [stdout]   25:     0x558ef13ade07 - std::panicking::try::hdc38a574bbebc53e
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19
[INFO] [stdout]   26:     0x558ef13ade07 - std::panic::catch_unwind::hc45ed246595c621c
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14
[INFO] [stdout]   27:     0x558ef13ade07 - test::run_test_in_process::h4249138faaea8d54
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:608:18
[INFO] [stdout]   28:     0x558ef13ade07 - test::run_test::run_test_inner::{{closure}}::h3c1b37669f6e9fd7
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:500:39
[INFO] [stdout]   29:     0x558ef137b0ae - test::run_test::run_test_inner::{{closure}}::h388760469edd5c24
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:527:37
[INFO] [stdout]   30:     0x558ef137b0ae - std::sys_common::backtrace::__rust_begin_short_backtrace::hbbaecdcfad18643e
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:123:18
[INFO] [stdout]   31:     0x558ef137fe08 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h09cd3ca65896da91
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:484:17
[INFO] [stdout]   32:     0x558ef137fe08 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc52dbb4f9088d18b
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   33:     0x558ef137fe08 - std::panicking::try::do_call::h4485cfee22b11c08
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40
[INFO] [stdout]   34:     0x558ef137fe08 - std::panicking::try::hb62aa8549e20c08b
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19
[INFO] [stdout]   35:     0x558ef137fe08 - std::panic::catch_unwind::ha322c7a5bc666762
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14
[INFO] [stdout]   36:     0x558ef137fe08 - std::thread::Builder::spawn_unchecked::{{closure}}::h1076fc1398603b77
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:483:30
[INFO] [stdout]   37:     0x558ef137fe08 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h911e510344167353
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   38:     0x558ef1603413 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h771719d52c343434
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   39:     0x558ef1603413 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf441746dfa4b0f57
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   40:     0x558ef1603413 - std::sys::unix::thread::Thread::new::thread_start::hfd168f9d312b29ca
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys/unix/thread.rs:106:17
[INFO] [stdout]   41:     0x7faf7eb5c609 - start_thread
[INFO] [stdout]   42:     0x7faf7e92e293 - clone
[INFO] [stdout]   43:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- mutate::test::discover_mutations stdout ----
[INFO] [stdout] thread 'mutate::test::discover_mutations' panicked at 'called `Result::unwrap()` on an `Err` value: failed to read source of "testdata/tree/factorial/src/bin/main.rs"
[INFO] [stdout] 
[INFO] [stdout] Caused by:
[INFO] [stdout]     No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] Stack backtrace:
[INFO] [stdout]    0: <E as anyhow::context::ext::StdError>::ext_context
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/anyhow-1.0.45/src/context.rs:27:29
[INFO] [stdout]    1: anyhow::context::<impl anyhow::Context<T,E> for core::result::Result<T,E>>::with_context::{{closure}}
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/anyhow-1.0.45/src/context.rs:58:30
[INFO] [stdout]    2: core::result::Result<T,E>::map_err
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/result.rs:853:27
[INFO] [stdout]    3: anyhow::context::<impl anyhow::Context<T,E> for core::result::Result<T,E>>::with_context
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/anyhow-1.0.45/src/context.rs:58:9
[INFO] [stdout]    4: cargo_mutants::source::SourceFile::new
[INFO] [stdout]              at ./src/source.rs:36:20
[INFO] [stdout]    5: cargo_mutants::mutate::test::discover_mutations
[INFO] [stdout]              at ./src/mutate.rs:343:27
[INFO] [stdout]    6: cargo_mutants::mutate::test::discover_mutations::{{closure}}
[INFO] [stdout]              at ./src/mutate.rs:342:5
[INFO] [stdout]    7: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]    8: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]    9: test::__rust_begin_short_backtrace
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:585:5
[INFO] [stdout]   10: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   11: <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   12: std::panicking::try::do_call
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40
[INFO] [stdout]   13: std::panicking::try
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19
[INFO] [stdout]   14: std::panic::catch_unwind
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14
[INFO] [stdout]   15: test::run_test_in_process
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:608:18
[INFO] [stdout]   16: test::run_test::run_test_inner::{{closure}}
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:500:39
[INFO] [stdout]   17: test::run_test::run_test_inner::{{closure}}
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:527:37
[INFO] [stdout]   18: std::sys_common::backtrace::__rust_begin_short_backtrace
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:123:18
[INFO] [stdout]   19: std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:484:17
[INFO] [stdout]   20: <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   21: std::panicking::try::do_call
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40
[INFO] [stdout]   22: std::panicking::try
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19
[INFO] [stdout]   23: std::panic::catch_unwind
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14
[INFO] [stdout]   24: std::thread::Builder::spawn_unchecked::{{closure}}
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:483:30
[INFO] [stdout]   25: core::ops::function::FnOnce::call_once{{vtable.shim}}
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   26: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   27: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   28: std::sys::unix::thread::Thread::new::thread_start
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys/unix/thread.rs:106:17
[INFO] [stdout]   29: start_thread
[INFO] [stdout]   30: clone', src/mutate.rs:347:10
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x558ef15fb32c - std::backtrace_rs::backtrace::libunwind::trace::h793e05efd273d0f4
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stdout]    1:     0x558ef15fb32c - std::backtrace_rs::backtrace::trace_unsynchronized::h640b7b86ff610c77
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x558ef15fb32c - std::sys_common::backtrace::_print_fmt::h362fa2a4f354f877
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x558ef15fb32c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf439e5ed84c74abd
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x558ef1620fac - core::fmt::write::h72801a82c94e6ff1
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/fmt/mod.rs:1149:17
[INFO] [stdout]    5:     0x558ef15f68a5 - std::io::Write::write_fmt::h54337adeb3504c03
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/io/mod.rs:1697:15
[INFO] [stdout]    6:     0x558ef15fd3f0 - std::sys_common::backtrace::_print::hb29ddd998d02631c
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x558ef15fd3f0 - std::sys_common::backtrace::print::h81965e3d7c90fbb6
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x558ef15fd3f0 - std::panicking::default_hook::{{closure}}::h84db205ab6674b38
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:211:50
[INFO] [stdout]    9:     0x558ef15fcfd6 - std::panicking::default_hook::h1bf8bb4159936bca
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:225:9
[INFO] [stdout]   10:     0x558ef15fdac9 - std::panicking::rust_panic_with_hook::hf8e86850fbbd03b1
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:610:17
[INFO] [stdout]   11:     0x558ef15fd580 - std::panicking::begin_panic_handler::{{closure}}::h590a0d6060ff866e
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:502:13
[INFO] [stdout]   12:     0x558ef15fb7e4 - std::sys_common::backtrace::__rust_end_short_backtrace::h260b8bd1c848a03c
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:139:18
[INFO] [stdout]   13:     0x558ef15fd4e9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:498:5
[INFO] [stdout]   14:     0x558ef11d7ef1 - core::panicking::panic_fmt::h7b8580d81fcbbacd
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panicking.rs:106:14
[INFO] [stdout]   15:     0x558ef11d7fe3 - core::result::unwrap_failed::h885d3f7beb571353
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/result.rs:1613:5
[INFO] [stdout]   16:     0x558ef1203d0b - core::result::Result<T,E>::unwrap::hd8c4fde1e3387e6b
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/result.rs:1295:23
[INFO] [stdout]   17:     0x558ef11f0aaa - cargo_mutants::mutate::test::discover_mutations::hd038ae1d4ce03a55
[INFO] [stdout]                                at /opt/rustwide/workdir/src/mutate.rs:343:27
[INFO] [stdout]   18:     0x558ef11f09da - cargo_mutants::mutate::test::discover_mutations::{{closure}}::h0c9145e7a69340fd
[INFO] [stdout]                                at /opt/rustwide/workdir/src/mutate.rs:342:5
[INFO] [stdout]   19:     0x558ef11f714e - core::ops::function::FnOnce::call_once::h5069f6fd0e8e8761
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x558ef13af1f3 - core::ops::function::FnOnce::call_once::h24a32b9da1a40fdb
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x558ef13af1f3 - test::__rust_begin_short_backtrace::h3c3a0492fb4a12eb
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:585:5
[INFO] [stdout]   22:     0x558ef13ade07 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h9a8e38435f73d5e0
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   23:     0x558ef13ade07 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb23d7496a0e6d1b4
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   24:     0x558ef13ade07 - std::panicking::try::do_call::ha2bb9825b32d2cc2
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40
[INFO] [stdout]   25:     0x558ef13ade07 - std::panicking::try::hdc38a574bbebc53e
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19
[INFO] [stdout]   26:     0x558ef13ade07 - std::panic::catch_unwind::hc45ed246595c621c
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14
[INFO] [stdout]   27:     0x558ef13ade07 - test::run_test_in_process::h4249138faaea8d54
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:608:18
[INFO] [stdout]   28:     0x558ef13ade07 - test::run_test::run_test_inner::{{closure}}::h3c1b37669f6e9fd7
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:500:39
[INFO] [stdout]   29:     0x558ef137b0ae - test::run_test::run_test_inner::{{closure}}::h388760469edd5c24
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:527:37
[INFO] [stdout]   30:     0x558ef137b0ae - std::sys_common::backtrace::__rust_begin_short_backtrace::hbbaecdcfad18643e
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:123:18
[INFO] [stdout]   31:     0x558ef137fe08 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h09cd3ca65896da91
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:484:17
[INFO] [stdout]   32:     0x558ef137fe08 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc52dbb4f9088d18b
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   33:     0x558ef137fe08 - std::panicking::try::do_call::h4485cfee22b11c08
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40
[INFO] [stdout]   34:     0x558ef137fe08 - std::panicking::try::hb62aa8549e20c08b
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19
[INFO] [stdout]   35:     0x558ef137fe08 - std::panic::catch_unwind::ha322c7a5bc666762
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14
[INFO] [stdout]   36:     0x558ef137fe08 - std::thread::Builder::spawn_unchecked::{{closure}}::h1076fc1398603b77
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:483:30
[INFO] [stdout]   37:     0x558ef137fe08 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h911e510344167353
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   38:     0x558ef1603413 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h771719d52c343434
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   39:     0x558ef1603413 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf441746dfa4b0f57
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   40:     0x558ef1603413 - std::sys::unix::thread::Thread::new::thread_start::hfd168f9d312b29ca
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys/unix/thread.rs:106:17
[INFO] [stdout]   41:     0x7faf7eb5c609 - start_thread
[INFO] [stdout]   42:     0x7faf7e92e293 - clone
[INFO] [stdout]   43:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- mutate::test::mutate_factorial stdout ----
[INFO] [stdout] thread 'mutate::test::mutate_factorial' panicked at 'called `Result::unwrap()` on an `Err` value: failed to read source of "testdata/tree/factorial/src/bin/main.rs"
[INFO] [stdout] 
[INFO] [stdout] Caused by:
[INFO] [stdout]     No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] Stack backtrace:
[INFO] [stdout]    0: <E as anyhow::context::ext::StdError>::ext_context
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/anyhow-1.0.45/src/context.rs:27:29
[INFO] [stdout]    1: anyhow::context::<impl anyhow::Context<T,E> for core::result::Result<T,E>>::with_context::{{closure}}
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/anyhow-1.0.45/src/context.rs:58:30
[INFO] [stdout]    2: core::result::Result<T,E>::map_err
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/result.rs:853:27
[INFO] [stdout]    3: anyhow::context::<impl anyhow::Context<T,E> for core::result::Result<T,E>>::with_context
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/anyhow-1.0.45/src/context.rs:58:9
[INFO] [stdout]    4: cargo_mutants::source::SourceFile::new
[INFO] [stdout]              at ./src/source.rs:36:20
[INFO] [stdout]    5: cargo_mutants::mutate::test::mutate_factorial
[INFO] [stdout]              at ./src/mutate.rs:377:27
[INFO] [stdout]    6: cargo_mutants::mutate::test::mutate_factorial::{{closure}}
[INFO] [stdout]              at ./src/mutate.rs:376:5
[INFO] [stdout]    7: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]    8: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]    9: test::__rust_begin_short_backtrace
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:585:5
[INFO] [stdout]   10: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   11: <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   12: std::panicking::try::do_call
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40
[INFO] [stdout]   13: std::panicking::try
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19
[INFO] [stdout]   14: std::panic::catch_unwind
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14
[INFO] [stdout]   15: test::run_test_in_process
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:608:18
[INFO] [stdout]   16: test::run_test::run_test_inner::{{closure}}
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:500:39
[INFO] [stdout]   17: test::run_test::run_test_inner::{{closure}}
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:527:37
[INFO] [stdout]   18: std::sys_common::backtrace::__rust_begin_short_backtrace
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:123:18
[INFO] [stdout]   19: std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:484:17
[INFO] [stdout]   20: <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   21: std::panicking::try::do_call
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40
[INFO] [stdout]   22: std::panicking::try
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19
[INFO] [stdout]   23: std::panic::catch_unwind
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14
[INFO] [stdout]   24: std::thread::Builder::spawn_unchecked::{{closure}}
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:483:30
[INFO] [stdout]   25: core::ops::function::FnOnce::call_once{{vtable.shim}}
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   26: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   27: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   28: std::sys::unix::thread::Thread::new::thread_start
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys/unix/thread.rs:106:17
[INFO] [stdout]   29: start_thread
[INFO] [stdout]   30: clone', src/mutate.rs:381:10
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x558ef15fb32c - std::backtrace_rs::backtrace::libunwind::trace::h793e05efd273d0f4
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stdout]    1:     0x558ef15fb32c - std::backtrace_rs::backtrace::trace_unsynchronized::h640b7b86ff610c77
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x558ef15fb32c - std::sys_common::backtrace::_print_fmt::h362fa2a4f354f877
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x558ef15fb32c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf439e5ed84c74abd
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x558ef1620fac - core::fmt::write::h72801a82c94e6ff1
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/fmt/mod.rs:1149:17
[INFO] [stdout]    5:     0x558ef15f68a5 - std::io::Write::write_fmt::h54337adeb3504c03
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/io/mod.rs:1697:15
[INFO] [stdout]    6:     0x558ef15fd3f0 - std::sys_common::backtrace::_print::hb29ddd998d02631c
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x558ef15fd3f0 - std::sys_common::backtrace::print::h81965e3d7c90fbb6
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x558ef15fd3f0 - std::panicking::default_hook::{{closure}}::h84db205ab6674b38
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:211:50
[INFO] [stdout]    9:     0x558ef15fcfd6 - std::panicking::default_hook::h1bf8bb4159936bca
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:225:9
[INFO] [stdout]   10:     0x558ef15fdac9 - std::panicking::rust_panic_with_hook::hf8e86850fbbd03b1
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:610:17
[INFO] [stdout]   11:     0x558ef15fd580 - std::panicking::begin_panic_handler::{{closure}}::h590a0d6060ff866e
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:502:13
[INFO] [stdout]   12:     0x558ef15fb7e4 - std::sys_common::backtrace::__rust_end_short_backtrace::h260b8bd1c848a03c
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:139:18
[INFO] [stdout]   13:     0x558ef15fd4e9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:498:5
[INFO] [stdout]   14:     0x558ef11d7ef1 - core::panicking::panic_fmt::h7b8580d81fcbbacd
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panicking.rs:106:14
[INFO] [stdout]   15:     0x558ef11d7fe3 - core::result::unwrap_failed::h885d3f7beb571353
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/result.rs:1613:5
[INFO] [stdout]   16:     0x558ef1203d0b - core::result::Result<T,E>::unwrap::hd8c4fde1e3387e6b
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/result.rs:1295:23
[INFO] [stdout]   17:     0x558ef11f1647 - cargo_mutants::mutate::test::mutate_factorial::ha7b6e9f88d9c9232
[INFO] [stdout]                                at /opt/rustwide/workdir/src/mutate.rs:377:27
[INFO] [stdout]   18:     0x558ef11f159a - cargo_mutants::mutate::test::mutate_factorial::{{closure}}::hdf1ff4b33a148e2c
[INFO] [stdout]                                at /opt/rustwide/workdir/src/mutate.rs:376:5
[INFO] [stdout]   19:     0x558ef11f728e - core::ops::function::FnOnce::call_once::he8c6f211ac94ee8c
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x558ef13af1f3 - core::ops::function::FnOnce::call_once::h24a32b9da1a40fdb
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x558ef13af1f3 - test::__rust_begin_short_backtrace::h3c3a0492fb4a12eb
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:585:5
[INFO] [stdout]   22:     0x558ef13ade07 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h9a8e38435f73d5e0
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   23:     0x558ef13ade07 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb23d7496a0e6d1b4
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   24:     0x558ef13ade07 - std::panicking::try::do_call::ha2bb9825b32d2cc2
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40
[INFO] [stdout]   25:     0x558ef13ade07 - std::panicking::try::hdc38a574bbebc53e
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19
[INFO] [stdout]   26:     0x558ef13ade07 - std::panic::catch_unwind::hc45ed246595c621c
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14
[INFO] [stdout]   27:     0x558ef13ade07 - test::run_test_in_process::h4249138faaea8d54
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:608:18
[INFO] [stdout]   28:     0x558ef13ade07 - test::run_test::run_test_inner::{{closure}}::h3c1b37669f6e9fd7
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:500:39
[INFO] [stdout]   29:     0x558ef137b0ae - test::run_test::run_test_inner::{{closure}}::h388760469edd5c24
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:527:37
[INFO] [stdout]   30:     0x558ef137b0ae - std::sys_common::backtrace::__rust_begin_short_backtrace::hbbaecdcfad18643e
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:123:18
[INFO] [stdout]   31:     0x558ef137fe08 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h09cd3ca65896da91
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:484:17
[INFO] [stdout]   32:     0x558ef137fe08 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc52dbb4f9088d18b
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   33:     0x558ef137fe08 - std::panicking::try::do_call::h4485cfee22b11c08
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40
[INFO] [stdout]   34:     0x558ef137fe08 - std::panicking::try::hb62aa8549e20c08b
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19
[INFO] [stdout]   35:     0x558ef137fe08 - std::panic::catch_unwind::ha322c7a5bc666762
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14
[INFO] [stdout]   36:     0x558ef137fe08 - std::thread::Builder::spawn_unchecked::{{closure}}::h1076fc1398603b77
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:483:30
[INFO] [stdout]   37:     0x558ef137fe08 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h911e510344167353
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   38:     0x558ef1603413 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h771719d52c343434
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   39:     0x558ef1603413 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf441746dfa4b0f57
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   40:     0x558ef1603413 - std::sys::unix::thread::Thread::new::thread_start::hfd168f9d312b29ca
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys/unix/thread.rs:106:17
[INFO] [stdout]   41:     0x7faf7eb5c609 - start_thread
[INFO] [stdout]   42:     0x7faf7e92e293 - clone
[INFO] [stdout]   43:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- source::test::source_files_in_testdata_factorial stdout ----
[INFO] [stdout] thread 'source::test::source_files_in_testdata_factorial' panicked at 'called `Result::unwrap()` on an `Err` value: testdata/tree/factorial does not contain a Cargo.toml: specify a crate directory
[INFO] [stdout] 
[INFO] [stdout] Stack backtrace:
[INFO] [stdout]    0: anyhow::error::<impl anyhow::Error>::msg
[INFO] [stdout]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/anyhow-1.0.45/src/error.rs:79:36
[INFO] [stdout]    1: cargo_mutants::source::SourceTree::new
[INFO] [stdout]              at ./src/source.rs:73:24
[INFO] [stdout]    2: cargo_mutants::source::test::source_files_in_testdata_factorial
[INFO] [stdout]              at ./src/source.rs:138:28
[INFO] [stdout]    3: cargo_mutants::source::test::source_files_in_testdata_factorial::{{closure}}
[INFO] [stdout]              at ./src/source.rs:137:5
[INFO] [stdout]    4: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]    5: core::ops::function::FnOnce::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]    6: test::__rust_begin_short_backtrace
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:585:5
[INFO] [stdout]    7: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]    8: <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]    9: std::panicking::try::do_call
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40
[INFO] [stdout]   10: std::panicking::try
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19
[INFO] [stdout]   11: std::panic::catch_unwind
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14
[INFO] [stdout]   12: test::run_test_in_process
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:608:18
[INFO] [stdout]   13: test::run_test::run_test_inner::{{closure}}
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:500:39
[INFO] [stdout]   14: test::run_test::run_test_inner::{{closure}}
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:527:37
[INFO] [stdout]   15: std::sys_common::backtrace::__rust_begin_short_backtrace
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:123:18
[INFO] [stdout]   16: std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:484:17
[INFO] [stdout]   17: <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   18: std::panicking::try::do_call
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40
[INFO] [stdout]   19: std::panicking::try
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19
[INFO] [stdout]   20: std::panic::catch_unwind
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14
[INFO] [stdout]   21: std::thread::Builder::spawn_unchecked::{{closure}}
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:483:30
[INFO] [stdout]   22: core::ops::function::FnOnce::call_once{{vtable.shim}}
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   23: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   24: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   25: std::sys::unix::thread::Thread::new::thread_start
[INFO] [stdout]              at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys/unix/thread.rs:106:17
[INFO] [stdout]   26: start_thread
[INFO] [stdout]   27: clone', src/source.rs:139:14
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x558ef15fb32c - std::backtrace_rs::backtrace::libunwind::trace::h793e05efd273d0f4
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stdout]    1:     0x558ef15fb32c - std::backtrace_rs::backtrace::trace_unsynchronized::h640b7b86ff610c77
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x558ef15fb32c - std::sys_common::backtrace::_print_fmt::h362fa2a4f354f877
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x558ef15fb32c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf439e5ed84c74abd
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x558ef1620fac - core::fmt::write::h72801a82c94e6ff1
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/fmt/mod.rs:1149:17
[INFO] [stdout]    5:     0x558ef15f68a5 - std::io::Write::write_fmt::h54337adeb3504c03
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/io/mod.rs:1697:15
[INFO] [stdout]    6:     0x558ef15fd3f0 - std::sys_common::backtrace::_print::hb29ddd998d02631c
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x558ef15fd3f0 - std::sys_common::backtrace::print::h81965e3d7c90fbb6
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x558ef15fd3f0 - std::panicking::default_hook::{{closure}}::h84db205ab6674b38
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:211:50
[INFO] [stdout]    9:     0x558ef15fcfd6 - std::panicking::default_hook::h1bf8bb4159936bca
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:225:9
[INFO] [stdout]   10:     0x558ef15fdac9 - std::panicking::rust_panic_with_hook::hf8e86850fbbd03b1
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:610:17
[INFO] [stdout]   11:     0x558ef15fd580 - std::panicking::begin_panic_handler::{{closure}}::h590a0d6060ff866e
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:502:13
[INFO] [stdout]   12:     0x558ef15fb7e4 - std::sys_common::backtrace::__rust_end_short_backtrace::h260b8bd1c848a03c
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:139:18
[INFO] [stdout]   13:     0x558ef15fd4e9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:498:5
[INFO] [stdout]   14:     0x558ef11d7ef1 - core::panicking::panic_fmt::h7b8580d81fcbbacd
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panicking.rs:106:14
[INFO] [stdout]   15:     0x558ef11d7fe3 - core::result::unwrap_failed::h885d3f7beb571353
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/result.rs:1613:5
[INFO] [stdout]   16:     0x558ef12039a3 - core::result::Result<T,E>::unwrap::h3c69d8d7676a7161
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/result.rs:1295:23
[INFO] [stdout]   17:     0x558ef11fcbd2 - cargo_mutants::source::test::source_files_in_testdata_factorial::h33265a28f3714a87
[INFO] [stdout]                                at /opt/rustwide/workdir/src/source.rs:138:28
[INFO] [stdout]   18:     0x558ef11fcb5a - cargo_mutants::source::test::source_files_in_testdata_factorial::{{closure}}::h2a207915872649bd
[INFO] [stdout]                                at /opt/rustwide/workdir/src/source.rs:137:5
[INFO] [stdout]   19:     0x558ef11f704e - core::ops::function::FnOnce::call_once::h32bafd333ada7b0e
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x558ef13af1f3 - core::ops::function::FnOnce::call_once::h24a32b9da1a40fdb
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x558ef13af1f3 - test::__rust_begin_short_backtrace::h3c3a0492fb4a12eb
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:585:5
[INFO] [stdout]   22:     0x558ef13ade07 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h9a8e38435f73d5e0
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   23:     0x558ef13ade07 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb23d7496a0e6d1b4
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   24:     0x558ef13ade07 - std::panicking::try::do_call::ha2bb9825b32d2cc2
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40
[INFO] [stdout]   25:     0x558ef13ade07 - std::panicking::try::hdc38a574bbebc53e
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19
[INFO] [stdout]   26:     0x558ef13ade07 - std::panic::catch_unwind::hc45ed246595c621c
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14
[INFO] [stdout]   27:     0x558ef13ade07 - test::run_test_in_process::h4249138faaea8d54
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:608:18
[INFO] [stdout]   28:     0x558ef13ade07 - test::run_test::run_test_inner::{{closure}}::h3c1b37669f6e9fd7
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:500:39
[INFO] [stdout]   29:     0x558ef137b0ae - test::run_test::run_test_inner::{{closure}}::h388760469edd5c24
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:527:37
[INFO] [stdout]   30:     0x558ef137b0ae - std::sys_common::backtrace::__rust_begin_short_backtrace::hbbaecdcfad18643e
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:123:18
[INFO] [stdout]   31:     0x558ef137fe08 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h09cd3ca65896da91
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:484:17
[INFO] [stdout]   32:     0x558ef137fe08 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc52dbb4f9088d18b
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   33:     0x558ef137fe08 - std::panicking::try::do_call::h4485cfee22b11c08
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40
[INFO] [stdout]   34:     0x558ef137fe08 - std::panicking::try::hb62aa8549e20c08b
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19
[INFO] [stdout]   35:     0x558ef137fe08 - std::panic::catch_unwind::ha322c7a5bc666762
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14
[INFO] [stdout]   36:     0x558ef137fe08 - std::thread::Builder::spawn_unchecked::{{closure}}::h1076fc1398603b77
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:483:30
[INFO] [stdout]   37:     0x558ef137fe08 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h911e510344167353
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   38:     0x558ef1603413 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h771719d52c343434
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   39:     0x558ef1603413 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf441746dfa4b0f57
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9
[INFO] [stdout]   40:     0x558ef1603413 - std::sys::unix::thread::Thread::new::thread_start::hfd168f9d312b29ca
[INFO] [stdout]                                at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys/unix/thread.rs:106:17
[INFO] [stdout]   41:     0x7faf7eb5c609 - start_thread
[INFO] [stdout]   42:     0x7faf7e92e293 - clone
[INFO] [stdout]   43:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     mutate::test::discover_mutations
[INFO] [stdout]     mutate::test::filter_by_attributes
[INFO] [stdout]     mutate::test::mutate_factorial
[INFO] [stdout]     source::test::source_files_in_testdata_factorial
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 8 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.64s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "af07b302d38d4f1d3a7118578b29d880c4a8f2f12f4987763d34a230930e8da2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af07b302d38d4f1d3a7118578b29d880c4a8f2f12f4987763d34a230930e8da2", kill_on_drop: false }`
[INFO] [stdout] af07b302d38d4f1d3a7118578b29d880c4a8f2f12f4987763d34a230930e8da2