[INFO] fetching crate igrepper 1.2.0...
[INFO] testing igrepper-1.2.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate igrepper 1.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate igrepper 1.2.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate igrepper 1.2.0
[INFO] finished tweaking crates.io crate igrepper 1.2.0
[INFO] tweaked toml for crates.io crate igrepper 1.2.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate igrepper 1.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded inotify v0.9.3
[INFO] [stderr]   Downloaded tokio v1.7.1
[INFO] [stderr]   Downloaded ncurses v5.101.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4109db60f44c7aee5792df85ce12288b9aaba8b2d6bb6ce6c75ae5c15e9bc737
[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" "4109db60f44c7aee5792df85ce12288b9aaba8b2d6bb6ce6c75ae5c15e9bc737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4109db60f44c7aee5792df85ce12288b9aaba8b2d6bb6ce6c75ae5c15e9bc737", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4109db60f44c7aee5792df85ce12288b9aaba8b2d6bb6ce6c75ae5c15e9bc737", kill_on_drop: false }`
[INFO] [stdout] 4109db60f44c7aee5792df85ce12288b9aaba8b2d6bb6ce6c75ae5c15e9bc737
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9a8b08e74e541fa0c5e83b288cda2c8fcae7519523f6c6449c0eb486ed14a47
[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" "f9a8b08e74e541fa0c5e83b288cda2c8fcae7519523f6c6449c0eb486ed14a47", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling tokio v1.7.1
[INFO] [stderr]    Compiling ncurses v5.101.0
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling inotify v0.9.3
[INFO] [stderr]    Compiling igrepper v1.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/igrepper/mod.rs:127:24
[INFO] [stdout]     |
[INFO] [stdout] 127 |                 panic!(format!("Inotify error: {}", message));
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 127 |                 panic!("Inotify error: {}", message);
[INFO] [stdout]     |                       --                          --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.56s
[INFO] running `Command { std: "docker" "inspect" "f9a8b08e74e541fa0c5e83b288cda2c8fcae7519523f6c6449c0eb486ed14a47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9a8b08e74e541fa0c5e83b288cda2c8fcae7519523f6c6449c0eb486ed14a47", kill_on_drop: false }`
[INFO] [stdout] f9a8b08e74e541fa0c5e83b288cda2c8fcae7519523f6c6449c0eb486ed14a47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a39e8df1bf54f51ab599df12555385cdf9524bd13a46d3d4c55c44181dedf5a
[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" "7a39e8df1bf54f51ab599df12555385cdf9524bd13a46d3d4c55c44181dedf5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling igrepper v1.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `longest_line_length`
[INFO] [stdout]    --> src/igrepper/state.rs:518:13
[INFO] [stdout]     |
[INFO] [stdout] 518 |         let longest_line_length = 15;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_longest_line_length`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/igrepper/core.rs:313:25
[INFO] [stdout]     |
[INFO] [stdout] 313 | /                         format!(
[INFO] [stdout] 314 | |                             "Missing keys in test result: {:?}",
[INFO] [stdout] 315 | |                             missing_keys
[INFO] [stdout] 316 | |                                 .iter()
[INFO] [stdout] ...   |
[INFO] [stdout] 319 | |                                 .join(", ")
[INFO] [stdout] 320 | |                         )
[INFO] [stdout]     | |_________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 313 |                         
[INFO] [stdout] 314 |                             "Missing keys in test result: {:?}",
[INFO] [stdout] 315 |                             missing_keys
[INFO] [stdout] 316 |                                 .iter()
[INFO] [stdout] 317 |                                 .cloned()
[INFO] [stdout] 318 |                                 .collect::<Vec<String>>()
[INFO] [stdout]   ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/igrepper/core.rs:324:25
[INFO] [stdout]     |
[INFO] [stdout] 324 | /                         format!(
[INFO] [stdout] 325 | |                             "Unexpected keys in test result: {:?}",
[INFO] [stdout] 326 | |                             unexpected_keys
[INFO] [stdout] 327 | |                                 .iter()
[INFO] [stdout] ...   |
[INFO] [stdout] 330 | |                                 .join(", ")
[INFO] [stdout] 331 | |                         )
[INFO] [stdout]     | |_________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 324 |                         
[INFO] [stdout] 325 |                             "Unexpected keys in test result: {:?}",
[INFO] [stdout] 326 |                             unexpected_keys
[INFO] [stdout] 327 |                                 .iter()
[INFO] [stdout] 328 |                                 .cloned()
[INFO] [stdout] 329 |                                 .collect::<Vec<String>>()
[INFO] [stdout]   ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/igrepper/mod.rs:127:24
[INFO] [stdout]     |
[INFO] [stdout] 127 |                 panic!(format!("Inotify error: {}", message));
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 127 |                 panic!("Inotify error: {}", message);
[INFO] [stdout]     |                       --                          --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.40s
[INFO] running `Command { std: "docker" "inspect" "7a39e8df1bf54f51ab599df12555385cdf9524bd13a46d3d4c55c44181dedf5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a39e8df1bf54f51ab599df12555385cdf9524bd13a46d3d4c55c44181dedf5a", kill_on_drop: false }`
[INFO] [stdout] 7a39e8df1bf54f51ab599df12555385cdf9524bd13a46d3d4c55c44181dedf5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", 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] 2c461220774812f77b4b92efb21a64376f1475ead7a5570918a97218fbd13da1
[INFO] running `Command { std: "docker" "start" "-a" "2c461220774812f77b4b92efb21a64376f1475ead7a5570918a97218fbd13da1", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `longest_line_length`
[INFO] [stderr]    --> src/igrepper/state.rs:518:13
[INFO] [stderr]     |
[INFO] [stderr] 518 |         let longest_line_length = 15;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_longest_line_length`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/igrepper/core.rs:313:25
[INFO] [stderr]     |
[INFO] [stderr] 313 | /                         format!(
[INFO] [stderr] 314 | |                             "Missing keys in test result: {:?}",
[INFO] [stderr] 315 | |                             missing_keys
[INFO] [stderr] 316 | |                                 .iter()
[INFO] [stderr] ...   |
[INFO] [stderr] 319 | |                                 .join(", ")
[INFO] [stderr] 320 | |                         )
[INFO] [stderr]     | |_________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 313 |                         
[INFO] [stderr] 314 |                             "Missing keys in test result: {:?}",
[INFO] [stderr] 315 |                             missing_keys
[INFO] [stderr] 316 |                                 .iter()
[INFO] [stderr] 317 |                                 .cloned()
[INFO] [stderr] 318 |                                 .collect::<Vec<String>>()
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/igrepper/core.rs:324:25
[INFO] [stderr]     |
[INFO] [stderr] 324 | /                         format!(
[INFO] [stderr] 325 | |                             "Unexpected keys in test result: {:?}",
[INFO] [stderr] 326 | |                             unexpected_keys
[INFO] [stderr] 327 | |                                 .iter()
[INFO] [stderr] ...   |
[INFO] [stderr] 330 | |                                 .join(", ")
[INFO] [stderr] 331 | |                         )
[INFO] [stderr]     | |_________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 324 |                         
[INFO] [stderr] 325 |                             "Unexpected keys in test result: {:?}",
[INFO] [stderr] 326 |                             unexpected_keys
[INFO] [stderr] 327 |                                 .iter()
[INFO] [stderr] 328 |                                 .cloned()
[INFO] [stderr] 329 |                                 .collect::<Vec<String>>()
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/igrepper/mod.rs:127:24
[INFO] [stderr]     |
[INFO] [stderr] 127 |                 panic!(format!("Inotify error: {}", message));
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 127 |                 panic!("Inotify error: {}", message);
[INFO] [stderr]     |                       --                          --
[INFO] [stderr] 
[INFO] [stderr] warning: `igrepper` (bin "igrepper" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/igrepper-176bac14009e38a4)
[INFO] [stdout] 
[INFO] [stdout] running 29 tests
[INFO] [stdout] test igrepper::core::tests::test_context ... ok
[INFO] [stdout] test igrepper::state::tests::empty_search_lines ... ok
[INFO] [stdout] test igrepper::state::tests::incrementing_context ... ok
[INFO] [stdout] test igrepper::core::tests::test_case_sensitivity ... ok
[INFO] [stdout] test igrepper::core::tests::test_inverse_searching ... ok
[INFO] [stdout] test igrepper::state::tests::accepting_match ... ok
[INFO] [stdout] test igrepper::state::tests::page_x ... ok
[INFO] [stdout] test igrepper::tests::construct_grep_context ... ok
[INFO] [stdout] test igrepper::tests::construct_grep_context_is_ignored_when_inverted ... ok
[INFO] [stdout] test igrepper::tests::construct_grep_multiple_lines ... ok
[INFO] [stdout] test igrepper::tests::construct_grep_one_line ... ok
[INFO] [stdout] test igrepper::core::tests::test_one ... ok
[INFO] [stdout] test igrepper::tests::construct_grep_sensitive_and_inverted ... ok
[INFO] [stdout] test igrepper::tests::construct_grep_with_single_quote ... ok
[INFO] [stdout] test igrepper::state::tests::decrementing_context ... ok
[INFO] [stdout] test igrepper::tests::construct_grep_case_sensitive ... ok
[INFO] [stdout] test igrepper::state::tests::push_char_create_invalid_regex ... ok
[INFO] [stdout] test igrepper::tests::construct_grep_inverted ... ok
[INFO] [stdout] test igrepper::state::tests::accepting_match_should_reject_invalid_regex ... ok
[INFO] [stdout] test igrepper::state::tests::push_char ... ok
[INFO] [stdout] test igrepper::state::tests::pop_char ... ok
[INFO] [stdout] test igrepper::state::tests::page_y ... ok
[INFO] [stdout] test igrepper::state::tests::toggle_inverted_match ... ok
[INFO] [stdout] test igrepper::state::tests::reverting_match ... ok
[INFO] [stdout] test igrepper::trimming::tests::replace_tabs_with_spaces_zero_current_steps ... ok
[INFO] [stdout] test igrepper::trimming::tests::replace_tabs_with_spaces_different_current_steps ... ok
[INFO] [stdout] test igrepper::state::tests::panic_on_empty_search_lines - should panic ... ok
[INFO] [stdout] test igrepper::state::tests::panic_on_invalid_initial_regex - should panic ... ok
[INFO] [stderr] error: test failed, to rerun pass '--bin igrepper'
[INFO] [stdout] test igrepper::core::tests::snapshot_tests ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- igrepper::core::tests::snapshot_tests stdout ----
[INFO] [stdout] thread 'igrepper::core::tests::snapshot_tests' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }', src/igrepper/core.rs:240:53
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5586741e0740 - std::backtrace_rs::backtrace::libunwind::trace::hff4d1766e93f64f1
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x5586741e0740 - std::backtrace_rs::backtrace::trace_unsynchronized::h56bbc8eb78770bcb
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5586741e0740 - std::sys_common::backtrace::_print_fmt::h5c8e75464faca780
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x5586741e0740 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h48b88277def8b362
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x55867420396c - core::fmt::write::h3381b3176fe2b3d3
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/fmt/mod.rs:1115:17
[INFO] [stdout]    5:     0x5586741dd495 - std::io::Write::write_fmt::h5f34a676f60246b5
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/io/mod.rs:1665:15
[INFO] [stdout]    6:     0x5586741e29db - std::sys_common::backtrace::_print::ha537687d6c17dd0d
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x5586741e29db - std::sys_common::backtrace::print::h61376ae57d131d72
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x5586741e29db - std::panicking::default_hook::{{closure}}::h0f7208c0b9644a54
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x5586741e24ec - std::panicking::default_hook::hdac7fc06578c14ce
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x5586741e30a4 - std::panicking::rust_panic_with_hook::h72b21c283da3d1ef
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x5586741e2b87 - std::panicking::begin_panic_handler::{{closure}}::he5778f1729cff84a
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x5586741e0c1c - std::sys_common::backtrace::__rust_end_short_backtrace::h2d11ca8b453b4b1d
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x5586741e2ae9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x558673f758c1 - core::panicking::panic_fmt::hf9de31d4acbce4db
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x558673f759b3 - core::result::unwrap_failed::ha0c84e81219e5878
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/result.rs:1599:5
[INFO] [stdout]   16:     0x558673f8b557 - core::result::Result<T,E>::unwrap::h0a42b4e0799b17d1
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/result.rs:1281:23
[INFO] [stdout]   17:     0x558673fb1b0f - igrepper::igrepper::core::tests::snapshot_tests::hb4d3eb5d310d80b0
[INFO] [stdout]                                at /opt/rustwide/workdir/src/igrepper/core.rs:240:9
[INFO] [stdout]   18:     0x558673fb1a2a - igrepper::igrepper::core::tests::snapshot_tests::{{closure}}::h16f51381aa257e91
[INFO] [stdout]                                at /opt/rustwide/workdir/src/igrepper/core.rs:238:5
[INFO] [stdout]   19:     0x558673faa1fe - core::ops::function::FnOnce::call_once::hf555697ff574c829
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x558673fede63 - core::ops::function::FnOnce::call_once::hbb52c4519d3137b0
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x558673fede63 - test::__rust_begin_short_backtrace::h86fe3a2a5a5121af
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:578:5
[INFO] [stdout]   22:     0x558673fec918 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hfd956bc3d57399be
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   23:     0x558673fec918 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h40dc93e0ddb5938a
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:347:9
[INFO] [stdout]   24:     0x558673fec918 - std::panicking::try::do_call::h90d07750cb47c562
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:401:40
[INFO] [stdout]   25:     0x558673fec918 - std::panicking::try::h063c84733ad2a629
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:365:19
[INFO] [stdout]   26:     0x558673fec918 - std::panic::catch_unwind::h0c464836a84e7c08
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:434:14
[INFO] [stdout]   27:     0x558673fec918 - test::run_test_in_process::h5cb06ef620b157fc
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:601:18
[INFO] [stdout]   28:     0x558673fec918 - test::run_test::run_test_inner::{{closure}}::h76f677f4b93f9828
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:493:39
[INFO] [stdout]   29:     0x558673fbb0ad - test::run_test::run_test_inner::{{closure}}::h366d01fe04f4d67a
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/test/src/lib.rs:520:37
[INFO] [stdout]   30:     0x558673fbb0ad - std::sys_common::backtrace::__rust_begin_short_backtrace::h7dfa0de4eb395af2
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   31:     0x558673fbf878 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf0a74bb58798037f
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/thread/mod.rs:476:17
[INFO] [stdout]   32:     0x558673fbf878 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb024e854818586ac
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:347:9
[INFO] [stdout]   33:     0x558673fbf878 - std::panicking::try::do_call::hb2dd9f1d0d48e41d
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:401:40
[INFO] [stdout]   34:     0x558673fbf878 - std::panicking::try::h4717ae7bac8b2bf3
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panicking.rs:365:19
[INFO] [stdout]   35:     0x558673fbf878 - std::panic::catch_unwind::h0dc8a061326ce8d8
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/panic.rs:434:14
[INFO] [stdout]   36:     0x558673fbf878 - std::thread::Builder::spawn_unchecked::{{closure}}::haa369e2d6fd00aa1
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/thread/mod.rs:475:30
[INFO] [stdout]   37:     0x558673fbf878 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h36dcf3de8b056f17
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   38:     0x5586741e83a7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h65c29e4642be2358
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   39:     0x5586741e83a7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hd0f8f7fbbd9fffbf
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   40:     0x5586741e83a7 - std::sys::unix::thread::Thread::new::thread_start::h2fd22fee3ca77b65
[INFO] [stdout]                                at /rustc/53fd98ca776cb875bc9e5514f56b52eb74f9e7a9/library/std/src/sys/unix/thread.rs:74:17
[INFO] [stdout]   41:     0x7fe51ffc4609 - start_thread
[INFO] [stdout]   42:     0x7fe51fd94293 - clone
[INFO] [stdout]   43:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     igrepper::core::tests::snapshot_tests
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 28 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2c461220774812f77b4b92efb21a64376f1475ead7a5570918a97218fbd13da1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c461220774812f77b4b92efb21a64376f1475ead7a5570918a97218fbd13da1", kill_on_drop: false }`
[INFO] [stdout] 2c461220774812f77b4b92efb21a64376f1475ead7a5570918a97218fbd13da1
