[INFO] cloning repository https://github.com/b-eyselein/rust_ebnf_tester
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/b-eyselein/rust_ebnf_tester" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fb-eyselein%2Frust_ebnf_tester", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fb-eyselein%2Frust_ebnf_tester'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dab4f7441de417e419b49a54bae3874d19b3cc08
[INFO] testing b-eyselein/rust_ebnf_tester against 1.94.0 for beta-1.95-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fb-eyselein%2Frust_ebnf_tester" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/b-eyselein/rust_ebnf_tester
[INFO] finished tweaking git repo https://github.com/b-eyselein/rust_ebnf_tester
[INFO] tweaked toml for git repo https://github.com/b-eyselein/rust_ebnf_tester written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/b-eyselein/rust_ebnf_tester on toolchain 1.94.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.94.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/b-eyselein/rust_ebnf_tester already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.94.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded either v1.8.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 58200086ab650010c9728883b557efa9a1d87b10613822abb73134b9be762306
[INFO] running `Command { std: "docker" "start" "-a" "58200086ab650010c9728883b557efa9a1d87b10613822abb73134b9be762306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58200086ab650010c9728883b557efa9a1d87b10613822abb73134b9be762306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58200086ab650010c9728883b557efa9a1d87b10613822abb73134b9be762306", kill_on_drop: false }`
[INFO] [stdout] 58200086ab650010c9728883b557efa9a1d87b10613822abb73134b9be762306
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c41a0b9f7eb053353f008c829e4ef2217641c4bd32d2683ec9f8e661768d0af3
[INFO] running `Command { std: "docker" "start" "-a" "c41a0b9f7eb053353f008c829e4ef2217641c4bd32d2683ec9f8e661768d0af3", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling ebnf_tester v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Terminal` is never constructed
[INFO] [stdout]  --> src/model.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Terminal(pub char);
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Variable` is never constructed
[INFO] [stdout]   --> src/model.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Variable(pub char);
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `BackusNaurProduction` is never used
[INFO] [stdout]  --> src/backus_naur_form.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum BackusNaurProduction {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Cell` is never used
[INFO] [stdout]  --> src/chomsky_normal_form.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type Cell<'a> = HashSet<&'a char>;
[INFO] [stdout]   |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Row` is never used
[INFO] [stdout]  --> src/chomsky_normal_form.rs:8:6
[INFO] [stdout]   |
[INFO] [stdout] 8 | type Row<'a> = Vec<Cell<'a>>;
[INFO] [stdout]   |      ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `ChomskyTable` is never used
[INFO] [stdout]  --> src/chomsky_normal_form.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 | type ChomskyTable<'a> = Vec<Row<'a>>;
[INFO] [stdout]   |      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ChomskyGrammar` is never constructed
[INFO] [stdout]   --> src/chomsky_normal_form.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct ChomskyGrammar {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `search_rules_producing_terminal`, `search_rules_producing_sequence`, `build_table`, and `derive` are never used
[INFO] [stdout]   --> src/chomsky_normal_form.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | impl ChomskyGrammar {
[INFO] [stdout]    | ------------------- methods in this implementation
[INFO] [stdout] 17 |     /// checks which vars produce c as terminal...
[INFO] [stdout] 18 |     fn search_rules_producing_terminal(&self, terminal: &char) -> Cell {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn search_rules_producing_sequence(&self, first_var: &char, second_var: &char) -> Cell {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     fn build_table(&self, word: &[char]) -> ChomskyTable {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn derive(&self, word: &[char]) -> bool {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ChomskyProduction` is never used
[INFO] [stdout]  --> src/chomsky_production.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum ChomskyProduction {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `produces_terminal` and `produces_sequence` are never used
[INFO] [stdout]   --> src/chomsky_production.rs:9:12
[INFO] [stdout]    |
[INFO] [stdout]  8 | impl ChomskyProduction {
[INFO] [stdout]    | ---------------------- methods in this implementation
[INFO] [stdout]  9 |     pub fn produces_terminal(&self, c: &char) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub fn produces_sequence(&self, var1: &char, var2: &char) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `convert_child_elements` is never used
[INFO] [stdout]   --> src/extended_backus_naur_form/mod.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn convert_child_elements(child_elements: &Vec<ExtendedBackusNaurProduction>) -> ElementsConversionResult {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `next_variable` is never used
[INFO] [stdout]   --> src/extended_backus_naur_form/mod.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn next_variable() -> Variable {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `convert_to_bnf` is never used
[INFO] [stdout]   --> src/extended_backus_naur_form/mod.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn convert_to_bnf(el: &ExtendedBackusNaurProduction) -> ElementConversionResult {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ExtendedBackusNaurProduction` is never used
[INFO] [stdout]  --> src/extended_backus_naur_form/ebnf_element.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum ExtendedBackusNaurProduction {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ElementConversionResult` is never constructed
[INFO] [stdout]  --> src/extended_backus_naur_form/element_conversion_result.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct ElementConversionResult<'a> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `simple` is never used
[INFO] [stdout]   --> src/extended_backus_naur_form/element_conversion_result.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl ElementConversionResult<'_> {
[INFO] [stdout]    | -------------------------------- associated function in this implementation
[INFO] [stdout] 16 |     pub fn simple(output_element: BackusNaurProduction) -> Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ElementsConversionResult` is never constructed
[INFO] [stdout]   --> src/extended_backus_naur_form/element_conversion_result.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub struct ElementsConversionResult<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `empty` is never used
[INFO] [stdout]   --> src/extended_backus_naur_form/element_conversion_result.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl ElementsConversionResult<'_> {
[INFO] [stdout]    | --------------------------------- associated function in this implementation
[INFO] [stdout] 35 |     pub fn empty() -> Self {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/chomsky_normal_form.rs:18:40
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn search_rules_producing_terminal(&self, terminal: &char) -> Cell {
[INFO] [stdout]    |                                        ^^^^^                      ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                        |
[INFO] [stdout]    |                                        the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn search_rules_producing_terminal(&self, terminal: &char) -> Cell<'_> {
[INFO] [stdout]    |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/chomsky_normal_form.rs:27:40
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn search_rules_producing_sequence(&self, first_var: &char, second_var: &char) -> Cell {
[INFO] [stdout]    |                                        ^^^^^ the lifetime is elided here              ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn search_rules_producing_sequence(&self, first_var: &char, second_var: &char) -> Cell<'_> {
[INFO] [stdout]    |                                                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/chomsky_normal_form.rs:36:20
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn build_table(&self, word: &[char]) -> ChomskyTable {
[INFO] [stdout]    |                    ^^^^^                    ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn build_table(&self, word: &[char]) -> ChomskyTable<'_> {
[INFO] [stdout]    |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/extended_backus_naur_form/mod.rs:11:43
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn convert_child_elements(child_elements: &Vec<ExtendedBackusNaurProduction>) -> ElementsConversionResult {
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                           |
[INFO] [stdout]    |                                           the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn convert_child_elements(child_elements: &Vec<ExtendedBackusNaurProduction>) -> ElementsConversionResult<'_> {
[INFO] [stdout]    |                                                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/extended_backus_naur_form/mod.rs:38:27
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn convert_to_bnf(el: &ExtendedBackusNaurProduction) -> ElementConversionResult {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn convert_to_bnf(el: &ExtendedBackusNaurProduction) -> ElementConversionResult<'_> {
[INFO] [stdout]    |                                                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `Command { std: "docker" "inspect" "c41a0b9f7eb053353f008c829e4ef2217641c4bd32d2683ec9f8e661768d0af3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c41a0b9f7eb053353f008c829e4ef2217641c4bd32d2683ec9f8e661768d0af3", kill_on_drop: false }`
[INFO] [stdout] c41a0b9f7eb053353f008c829e4ef2217641c4bd32d2683ec9f8e661768d0af3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d4b83926292477d33d20e631c965c55cda708d3ef8228e01a0c82ffa348beac
[INFO] running `Command { std: "docker" "start" "-a" "2d4b83926292477d33d20e631c965c55cda708d3ef8228e01a0c82ffa348beac", kill_on_drop: false }`
[INFO] [stderr]    Compiling ebnf_tester v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/chomsky_normal_form.rs:18:40
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn search_rules_producing_terminal(&self, terminal: &char) -> Cell {
[INFO] [stdout]    |                                        ^^^^^                      ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                        |
[INFO] [stdout]    |                                        the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn search_rules_producing_terminal(&self, terminal: &char) -> Cell<'_> {
[INFO] [stdout]    |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/chomsky_normal_form.rs:27:40
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn search_rules_producing_sequence(&self, first_var: &char, second_var: &char) -> Cell {
[INFO] [stdout]    |                                        ^^^^^ the lifetime is elided here              ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn search_rules_producing_sequence(&self, first_var: &char, second_var: &char) -> Cell<'_> {
[INFO] [stdout]    |                                                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/chomsky_normal_form.rs:36:20
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn build_table(&self, word: &[char]) -> ChomskyTable {
[INFO] [stdout]    |                    ^^^^^                    ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn build_table(&self, word: &[char]) -> ChomskyTable<'_> {
[INFO] [stdout]    |                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/extended_backus_naur_form/mod.rs:11:43
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn convert_child_elements(child_elements: &Vec<ExtendedBackusNaurProduction>) -> ElementsConversionResult {
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                           |
[INFO] [stdout]    |                                           the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn convert_child_elements(child_elements: &Vec<ExtendedBackusNaurProduction>) -> ElementsConversionResult<'_> {
[INFO] [stdout]    |                                                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/extended_backus_naur_form/mod.rs:38:27
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn convert_to_bnf(el: &ExtendedBackusNaurProduction) -> ElementConversionResult {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                           |
[INFO] [stdout]    |                           the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn convert_to_bnf(el: &ExtendedBackusNaurProduction) -> ElementConversionResult<'_> {
[INFO] [stdout]    |                                                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "2d4b83926292477d33d20e631c965c55cda708d3ef8228e01a0c82ffa348beac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d4b83926292477d33d20e631c965c55cda708d3ef8228e01a0c82ffa348beac", kill_on_drop: false }`
[INFO] [stdout] 2d4b83926292477d33d20e631c965c55cda708d3ef8228e01a0c82ffa348beac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3b81b0acd2d930265e7ab2dfe882bf30ac3c55d5f04d15b37cc6801ebc3d2b1a
[INFO] running `Command { std: "docker" "start" "-a" "3b81b0acd2d930265e7ab2dfe882bf30ac3c55d5f04d15b37cc6801ebc3d2b1a", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/chomsky_normal_form.rs:18:40
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn search_rules_producing_terminal(&self, terminal: &char) -> Cell {
[INFO] [stderr]    |                                        ^^^^^                      ^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                                        |
[INFO] [stderr]    |                                        the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn search_rules_producing_terminal(&self, terminal: &char) -> Cell<'_> {
[INFO] [stderr]    |                                                                       ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/chomsky_normal_form.rs:27:40
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn search_rules_producing_sequence(&self, first_var: &char, second_var: &char) -> Cell {
[INFO] [stderr]    |                                        ^^^^^ the lifetime is elided here              ^^^^ the same lifetime is hidden here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn search_rules_producing_sequence(&self, first_var: &char, second_var: &char) -> Cell<'_> {
[INFO] [stderr]    |                                                                                           ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/chomsky_normal_form.rs:36:20
[INFO] [stderr]    |
[INFO] [stderr] 36 |     fn build_table(&self, word: &[char]) -> ChomskyTable {
[INFO] [stderr]    |                    ^^^^^                    ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 36 |     fn build_table(&self, word: &[char]) -> ChomskyTable<'_> {
[INFO] [stderr]    |                                                         ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/extended_backus_naur_form/mod.rs:11:43
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn convert_child_elements(child_elements: &Vec<ExtendedBackusNaurProduction>) -> ElementsConversionResult {
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                                           |
[INFO] [stderr]    |                                           the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn convert_child_elements(child_elements: &Vec<ExtendedBackusNaurProduction>) -> ElementsConversionResult<'_> {
[INFO] [stderr]    |                                                                                                          ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/extended_backus_naur_form/mod.rs:38:27
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub fn convert_to_bnf(el: &ExtendedBackusNaurProduction) -> ElementConversionResult {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                           |
[INFO] [stderr]    |                           the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub fn convert_to_bnf(el: &ExtendedBackusNaurProduction) -> ElementConversionResult<'_> {
[INFO] [stderr]    |                                                                                    ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `ebnf_tester` (bin "ebnf_tester" test) generated 5 warnings (run `cargo fix --bin "ebnf_tester" -p ebnf_tester --tests` to apply 5 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ebnf_tester-ae2efcb26299d353)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test chomsky_production::tests::test_chomsky_production_produces ... ok
[INFO] [stdout] test extended_backus_naur_form::ebnf_element::tests::test_option ... ok
[INFO] [stdout] test chomsky_normal_form::tests::test_derive ... ok
[INFO] [stdout] test extended_backus_naur_form::ebnf_element::tests::test_rep_zero ... ok
[INFO] [stdout] test extended_backus_naur_form::ebnf_element::tests::test_sequence ... ok
[INFO] [stdout] test extended_backus_naur_form::ebnf_element::tests::test_alternative ... ok
[INFO] [stdout] test model::tests::test_terminal ... ok
[INFO] [stdout] test model::tests::test_variable ... ok
[INFO] [stdout] test extended_backus_naur_form::ebnf_element::tests::test_rep_one ... ok
[INFO] [stdout] test extended_backus_naur_form::tests::test_convert_to_bnf ... FAILED
[INFO] [stdout] test chomsky_normal_form::tests::test_build_table ... ok
[INFO] [stderr] error: test failed, to rerun pass `--bin ebnf_tester`
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- extended_backus_naur_form::tests::test_convert_to_bnf stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'extended_backus_naur_form::tests::test_convert_to_bnf' (33) panicked at src/extended_backus_naur_form/mod.rs:35:5:
[INFO] [stdout] not yet implemented
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x56b7cae52952 - std::backtrace_rs::backtrace::libunwind::trace::hff358a60abf734fc
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x56b7cae52952 - std::backtrace_rs::backtrace::trace_unsynchronized::h3b121f916dd95ec6
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x56b7cae52952 - std::sys::backtrace::_print_fmt::hde0a62ded68798e9
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x56b7cae52952 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h93773fc827e3113d
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x56b7cae62b2a - core::fmt::rt::Argument::fmt::h01eff69902dad97f
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x56b7cae62b2a - core::fmt::write::hed7b5c73d82ecb7c
[INFO] [stdout]    6:     0x56b7cae21696 - std::io::default_write_fmt::h2f696ff5b8bbaa4b
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x56b7cae21696 - std::io::Write::write_fmt::h5e66814db8a9cfce
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x56b7cae31e39 - std::sys::backtrace::BacktraceLock::print::h8b1d6fcc5a56d1a3
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x56b7cae31e39 - std::panicking::default_hook::{{closure}}::h2be84df4f189ae36
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x56b7cae31cd1 - std::panicking::default_hook::hf0ea8939246f43a9
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x56b7cadf5ece - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h02d35e3888986252
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x56b7cadf5ece - test::test_main_with_exit_callback::{{closure}}::h939640a27d647173
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x56b7cae320b2 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hc9df09ff391af3e7
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x56b7cae320b2 - std::panicking::panic_with_hook::hb4bd9ac1123582a0
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x56b7cae31f2a - std::panicking::panic_handler::{{closure}}::hde00dd15f5637fe2
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:691:13
[INFO] [stdout]   16:     0x56b7cae2d489 - std::sys::backtrace::__rust_end_short_backtrace::hb72197fa777c1785
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x56b7cae164cd - __rustc[4425a7e20b4c8619]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x56b7cae6a37c - core::panicking::panic_fmt::ha59b517dd231f4da
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x56b7cae6a342 - core::panicking::panic::hbff2745fd4c5afec
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/panicking.rs:150:5
[INFO] [stdout]   20:     0x56b7cadd27aa - ebnf_tester::extended_backus_naur_form::next_variable::h74c3690a4298f303
[INFO] [stdout]                                at /opt/rustwide/workdir/src/extended_backus_naur_form/mod.rs:35:5
[INFO] [stdout]   21:     0x56b7cadd2905 - ebnf_tester::extended_backus_naur_form::convert_to_bnf::h259abc55cd076275
[INFO] [stdout]                                at /opt/rustwide/workdir/src/extended_backus_naur_form/mod.rs:89:32
[INFO] [stdout]   22:     0x56b7cadb541d - ebnf_tester::extended_backus_naur_form::tests::test_convert_to_bnf::hc0047b3dcbb95992
[INFO] [stdout]                                at /opt/rustwide/workdir/src/extended_backus_naur_form/mod.rs:151:24
[INFO] [stdout]   23:     0x56b7cadb5587 - ebnf_tester::extended_backus_naur_form::tests::test_convert_to_bnf::{{closure}}::h84da467e107ec30f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/extended_backus_naur_form/mod.rs:128:29
[INFO] [stdout]   24:     0x56b7cadc1686 - core::ops::function::FnOnce::call_once::hccb95be36d4052d6
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x56b7cadf5c8b - core::ops::function::FnOnce::call_once::hddb3cd395c36bfbb
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x56b7cadf5c8b - test::__rust_begin_short_backtrace::h0b6a7601d9750bfa
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/test/src/lib.rs:663:18
[INFO] [stdout]   27:     0x56b7cae0969a - test::run_test_in_process::{{closure}}::h444209903f00b347
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/test/src/lib.rs:686:74
[INFO] [stdout]   28:     0x56b7cae0969a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hfb3ba8f46e537649
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   29:     0x56b7cae0969a - std::panicking::catch_unwind::do_call::h1672a45911fcf9dc
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:581:40
[INFO] [stdout]   30:     0x56b7cae0969a - std::panicking::catch_unwind::h0fadaee22787a6dd
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:544:19
[INFO] [stdout]   31:     0x56b7cae0969a - std::panic::catch_unwind::hc47ad190f2c8e188
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panic.rs:359:14
[INFO] [stdout]   32:     0x56b7cae0969a - test::run_test_in_process::hcd7faaf934f29999
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/test/src/lib.rs:686:27
[INFO] [stdout]   33:     0x56b7cae0969a - test::run_test::{{closure}}::hddc4550da4871867
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/test/src/lib.rs:607:43
[INFO] [stdout]   34:     0x56b7cade3af4 - test::run_test::{{closure}}::h98ae26689f13ed94
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/test/src/lib.rs:637:41
[INFO] [stdout]   35:     0x56b7cade3af4 - std::sys::backtrace::__rust_begin_short_backtrace::h3ec4d1f21ad44588
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   36:     0x56b7cade7492 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::hd8bf2c73d479939f
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   37:     0x56b7cade7492 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h3b4248f358af2491
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   38:     0x56b7cade7492 - std::panicking::catch_unwind::do_call::hda10a64f4b8daebe
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:581:40
[INFO] [stdout]   39:     0x56b7cade7492 - std::panicking::catch_unwind::h659e5ee8336ec8c7
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panicking.rs:544:19
[INFO] [stdout]   40:     0x56b7cade7492 - std::panic::catch_unwind::h9d4d66a538912c18
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/panic.rs:359:14
[INFO] [stdout]   41:     0x56b7cade7492 - std::thread::lifecycle::spawn_unchecked::{{closure}}::h7557906bb51d79f1
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   42:     0x56b7cade7492 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h9e460d1d7fc83d35
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x56b7cae2871f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h61282da819d64ea9
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   44:     0x56b7cae2871f - std::sys::thread::unix::Thread::new::thread_start::h982f9ea829d1b5fb
[INFO] [stdout]                                at /rustc/4a4ef493e3a1488c6e321570238084b38948f6db/library/std/src/sys/thread/unix.rs:127:17
[INFO] [stdout]   45:     0x7e6d977fcaa4 - <unknown>
[INFO] [stdout]   46:     0x7e6d97889a64 - clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     extended_backus_naur_form::tests::test_convert_to_bnf
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 10 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3b81b0acd2d930265e7ab2dfe882bf30ac3c55d5f04d15b37cc6801ebc3d2b1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b81b0acd2d930265e7ab2dfe882bf30ac3c55d5f04d15b37cc6801ebc3d2b1a", kill_on_drop: false }`
[INFO] [stdout] 3b81b0acd2d930265e7ab2dfe882bf30ac3c55d5f04d15b37cc6801ebc3d2b1a
