[INFO] fetching crate rflex 0.8.0...
[INFO] testing rflex-0.8.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate rflex 0.8.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rflex 0.8.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rflex 0.8.0
[INFO] finished tweaking crates.io crate rflex 0.8.0
[INFO] tweaked toml for crates.io crate rflex 0.8.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate rflex 0.8.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0bf4e69a9d897105c541aec9473d9da859efb47ecc62dc39000290729d7c22d
[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" "c0bf4e69a9d897105c541aec9473d9da859efb47ecc62dc39000290729d7c22d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0bf4e69a9d897105c541aec9473d9da859efb47ecc62dc39000290729d7c22d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0bf4e69a9d897105c541aec9473d9da859efb47ecc62dc39000290729d7c22d", kill_on_drop: false }`
[INFO] [stdout] c0bf4e69a9d897105c541aec9473d9da859efb47ecc62dc39000290729d7c22d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cdf0a75c8d92905bad5652090a340c5b08d5785113d4c09700f1b5ef30ec6616
[INFO] running `Command { std: "docker" "start" "-a" "cdf0a75c8d92905bad5652090a340c5b08d5785113d4c09700f1b5ef30ec6616", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]    Compiling liquid-error v0.16.1
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling object v0.22.0
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling tinyvec v1.1.0
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling unicode-normalization v0.1.16
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling addr2line v0.14.0
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling liquid-value v0.17.1
[INFO] [stderr]    Compiling liquid-interpreter v0.17.1
[INFO] [stderr]    Compiling liquid-compiler v0.17.1
[INFO] [stderr]    Compiling liquid v0.17.1
[INFO] [stderr]    Compiling rflex v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `set_end`
[INFO] [stdout]   --> src/charclasses.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn set_end(&mut self, end: usize) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_start`
[INFO] [stdout]   --> src/charclasses.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn set_start(&mut self, start: usize) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_char`
[INFO] [stdout]    --> src/charclasses.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn add_char(&mut self, c: usize) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_max_char_code`
[INFO] [stdout]    --> src/charclasses.rs:396:12
[INFO] [stdout]     |
[INFO] [stdout] 396 |     pub fn get_max_char_code(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_max_char_code`
[INFO] [stdout]    --> src/charclasses.rs:400:12
[INFO] [stdout]     |
[INFO] [stdout] 400 |     pub fn set_max_char_code(&mut self, max_char_code: usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_string_i`
[INFO] [stdout]    --> src/charclasses.rs:511:12
[INFO] [stdout]     |
[INFO] [stdout] 511 |     pub fn to_string_i(&self, index: usize) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_dot`
[INFO] [stdout]    --> src/dfa.rs:480:12
[INFO] [stdout]     |
[INFO] [stdout] 480 |     pub fn write_dot(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dump`
[INFO] [stdout]    --> src/dfa.rs:503:12
[INFO] [stdout]     |
[INFO] [stdout] 503 |     pub fn dump(&self) -> String {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dump_epsilon`
[INFO] [stdout]    --> src/nfa.rs:528:8
[INFO] [stdout]     |
[INFO] [stdout] 528 |     fn dump_epsilon(&self, epsilon: Vec<Option<Rc<RefCell<FixedBitSet>>>>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/nfa.rs:527:12
[INFO] [stdout]     |
[INFO] [stdout] 527 |     #[warn(dead_code)]
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dump_fixedbit`
[INFO] [stdout]    --> src/nfa.rs:542:8
[INFO] [stdout]     |
[INFO] [stdout] 542 |     fn dump_fixedbit(&self, v: &FixedBitSet) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/nfa.rs:541:12
[INFO] [stdout]     |
[INFO] [stdout] 541 |     #[warn(dead_code)]
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dump_fixedbit_str`
[INFO] [stdout]    --> src/nfa.rs:546:8
[INFO] [stdout]     |
[INFO] [stdout] 546 |     fn dump_fixedbit_str(&self, v: &FixedBitSet) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_dot`
[INFO] [stdout]    --> src/nfa.rs:559:12
[INFO] [stdout]     |
[INFO] [stdout] 559 |     pub fn write_dot(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dump_table`
[INFO] [stdout]    --> src/nfa.rs:594:12
[INFO] [stdout]     |
[INFO] [stdout] 594 |     pub fn dump_table(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Name`
[INFO] [stdout]   --> src/scanner.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Name(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_char_classes`
[INFO] [stdout]    --> src/scanner.rs:354:12
[INFO] [stdout]     |
[INFO] [stdout] 354 |     pub fn get_char_classes(&self) -> CharClasses {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_regex`
[INFO] [stdout]    --> src/scanner.rs:584:4
[INFO] [stdout]     |
[INFO] [stdout] 584 | fn parse_regex(line_num: usize, line: &String) -> Result<(IR, String), TranslateError> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `num`
[INFO] [stdout]    --> src/scanner.rs:681:12
[INFO] [stdout]     |
[INFO] [stdout] 681 |     pub fn num(num: i32) -> Action {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:12:30
[INFO] [stdout]    |
[INFO] [stdout] 12 |                 for cause in failure::Fail::iter_chain(&e) {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^ help: use `dyn`: `<dyn failure::Fail>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] running `Command { std: "docker" "inspect" "cdf0a75c8d92905bad5652090a340c5b08d5785113d4c09700f1b5ef30ec6616", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdf0a75c8d92905bad5652090a340c5b08d5785113d4c09700f1b5ef30ec6616", kill_on_drop: false }`
[INFO] [stdout] cdf0a75c8d92905bad5652090a340c5b08d5785113d4c09700f1b5ef30ec6616
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9bb262c9910311148f440c6cb9dde4d4bad22f98aff97bffdd8470a2338a00a0
[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" "9bb262c9910311148f440c6cb9dde4d4bad22f98aff97bffdd8470a2338a00a0", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling rflex v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `set_end`
[INFO] [stdout]   --> src/charclasses.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn set_end(&mut self, end: usize) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_start`
[INFO] [stdout]   --> src/charclasses.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn set_start(&mut self, start: usize) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_char`
[INFO] [stdout]    --> src/charclasses.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn add_char(&mut self, c: usize) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_max_char_code`
[INFO] [stdout]    --> src/charclasses.rs:396:12
[INFO] [stdout]     |
[INFO] [stdout] 396 |     pub fn get_max_char_code(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_max_char_code`
[INFO] [stdout]    --> src/charclasses.rs:400:12
[INFO] [stdout]     |
[INFO] [stdout] 400 |     pub fn set_max_char_code(&mut self, max_char_code: usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_string_i`
[INFO] [stdout]    --> src/charclasses.rs:511:12
[INFO] [stdout]     |
[INFO] [stdout] 511 |     pub fn to_string_i(&self, index: usize) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_dot`
[INFO] [stdout]    --> src/dfa.rs:480:12
[INFO] [stdout]     |
[INFO] [stdout] 480 |     pub fn write_dot(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dump`
[INFO] [stdout]    --> src/dfa.rs:503:12
[INFO] [stdout]     |
[INFO] [stdout] 503 |     pub fn dump(&self) -> String {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dump_epsilon`
[INFO] [stdout]    --> src/nfa.rs:528:8
[INFO] [stdout]     |
[INFO] [stdout] 528 |     fn dump_epsilon(&self, epsilon: Vec<Option<Rc<RefCell<FixedBitSet>>>>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/nfa.rs:527:12
[INFO] [stdout]     |
[INFO] [stdout] 527 |     #[warn(dead_code)]
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dump_fixedbit`
[INFO] [stdout]    --> src/nfa.rs:542:8
[INFO] [stdout]     |
[INFO] [stdout] 542 |     fn dump_fixedbit(&self, v: &FixedBitSet) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/nfa.rs:541:12
[INFO] [stdout]     |
[INFO] [stdout] 541 |     #[warn(dead_code)]
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dump_fixedbit_str`
[INFO] [stdout]    --> src/nfa.rs:546:8
[INFO] [stdout]     |
[INFO] [stdout] 546 |     fn dump_fixedbit_str(&self, v: &FixedBitSet) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_dot`
[INFO] [stdout]    --> src/nfa.rs:559:12
[INFO] [stdout]     |
[INFO] [stdout] 559 |     pub fn write_dot(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dump_table`
[INFO] [stdout]    --> src/nfa.rs:594:12
[INFO] [stdout]     |
[INFO] [stdout] 594 |     pub fn dump_table(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Name`
[INFO] [stdout]   --> src/scanner.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Name(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_char_classes`
[INFO] [stdout]    --> src/scanner.rs:354:12
[INFO] [stdout]     |
[INFO] [stdout] 354 |     pub fn get_char_classes(&self) -> CharClasses {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_regex`
[INFO] [stdout]    --> src/scanner.rs:584:4
[INFO] [stdout]     |
[INFO] [stdout] 584 | fn parse_regex(line_num: usize, line: &String) -> Result<(IR, String), TranslateError> {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `num`
[INFO] [stdout]    --> src/scanner.rs:681:12
[INFO] [stdout]     |
[INFO] [stdout] 681 |     pub fn num(num: i32) -> Action {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:12:30
[INFO] [stdout]    |
[INFO] [stdout] 12 |                 for cause in failure::Fail::iter_chain(&e) {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^ help: use `dyn`: `<dyn failure::Fail>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_end`
[INFO] [stdout]   --> src/charclasses.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn set_end(&mut self, end: usize) {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_start`
[INFO] [stdout]   --> src/charclasses.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn set_start(&mut self, start: usize) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_max_char_code`
[INFO] [stdout]    --> src/charclasses.rs:396:12
[INFO] [stdout]     |
[INFO] [stdout] 396 |     pub fn get_max_char_code(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_max_char_code`
[INFO] [stdout]    --> src/charclasses.rs:400:12
[INFO] [stdout]     |
[INFO] [stdout] 400 |     pub fn set_max_char_code(&mut self, max_char_code: usize) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dump`
[INFO] [stdout]    --> src/dfa.rs:503:12
[INFO] [stdout]     |
[INFO] [stdout] 503 |     pub fn dump(&self) -> String {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dump_epsilon`
[INFO] [stdout]    --> src/nfa.rs:528:8
[INFO] [stdout]     |
[INFO] [stdout] 528 |     fn dump_epsilon(&self, epsilon: Vec<Option<Rc<RefCell<FixedBitSet>>>>) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/nfa.rs:527:12
[INFO] [stdout]     |
[INFO] [stdout] 527 |     #[warn(dead_code)]
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dump_fixedbit`
[INFO] [stdout]    --> src/nfa.rs:542:8
[INFO] [stdout]     |
[INFO] [stdout] 542 |     fn dump_fixedbit(&self, v: &FixedBitSet) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/nfa.rs:541:12
[INFO] [stdout]     |
[INFO] [stdout] 541 |     #[warn(dead_code)]
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dump_fixedbit_str`
[INFO] [stdout]    --> src/nfa.rs:546:8
[INFO] [stdout]     |
[INFO] [stdout] 546 |     fn dump_fixedbit_str(&self, v: &FixedBitSet) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dump_table`
[INFO] [stdout]    --> src/nfa.rs:594:12
[INFO] [stdout]     |
[INFO] [stdout] 594 |     pub fn dump_table(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Name`
[INFO] [stdout]   --> src/scanner.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     Name(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_char_classes`
[INFO] [stdout]    --> src/scanner.rs:354:12
[INFO] [stdout]     |
[INFO] [stdout] 354 |     pub fn get_char_classes(&self) -> CharClasses {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.64s
[INFO] running `Command { std: "docker" "inspect" "9bb262c9910311148f440c6cb9dde4d4bad22f98aff97bffdd8470a2338a00a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bb262c9910311148f440c6cb9dde4d4bad22f98aff97bffdd8470a2338a00a0", kill_on_drop: false }`
[INFO] [stdout] 9bb262c9910311148f440c6cb9dde4d4bad22f98aff97bffdd8470a2338a00a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 4882370480ae6010fdceed8dbab0fffec88b8b6db9f97feac7f7c6a224220a8f
[INFO] running `Command { std: "docker" "start" "-a" "4882370480ae6010fdceed8dbab0fffec88b8b6db9f97feac7f7c6a224220a8f", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] warning: associated function is never used: `set_end`
[INFO] [stderr]   --> src/charclasses.rs:22:12
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn set_end(&mut self, end: usize) {
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_start`
[INFO] [stderr]   --> src/charclasses.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn set_start(&mut self, start: usize) {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `add_char`
[INFO] [stderr]    --> src/charclasses.rs:155:12
[INFO] [stderr]     |
[INFO] [stderr] 155 |     pub fn add_char(&mut self, c: usize) {
[INFO] [stderr]     |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_max_char_code`
[INFO] [stderr]    --> src/charclasses.rs:396:12
[INFO] [stderr]     |
[INFO] [stderr] 396 |     pub fn get_max_char_code(&self) -> usize {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `set_max_char_code`
[INFO] [stderr]    --> src/charclasses.rs:400:12
[INFO] [stderr]     |
[INFO] [stderr] 400 |     pub fn set_max_char_code(&mut self, max_char_code: usize) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `to_string_i`
[INFO] [stderr]    --> src/charclasses.rs:511:12
[INFO] [stderr]     |
[INFO] [stderr] 511 |     pub fn to_string_i(&self, index: usize) -> String {
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `write_dot`
[INFO] [stderr]    --> src/dfa.rs:480:12
[INFO] [stderr]     |
[INFO] [stderr] 480 |     pub fn write_dot(&self) -> String {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `dump`
[INFO] [stderr]    --> src/dfa.rs:503:12
[INFO] [stderr]     |
[INFO] [stderr] 503 |     pub fn dump(&self) -> String {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `dump_epsilon`
[INFO] [stderr]    --> src/nfa.rs:528:8
[INFO] [stderr]     |
[INFO] [stderr] 528 |     fn dump_epsilon(&self, epsilon: Vec<Option<Rc<RefCell<FixedBitSet>>>>) {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/nfa.rs:527:12
[INFO] [stderr]     |
[INFO] [stderr] 527 |     #[warn(dead_code)]
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `dump_fixedbit`
[INFO] [stderr]    --> src/nfa.rs:542:8
[INFO] [stderr]     |
[INFO] [stderr] 542 |     fn dump_fixedbit(&self, v: &FixedBitSet) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]    --> src/nfa.rs:541:12
[INFO] [stderr]     |
[INFO] [stderr] 541 |     #[warn(dead_code)]
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `dump_fixedbit_str`
[INFO] [stderr]    --> src/nfa.rs:546:8
[INFO] [stderr]     |
[INFO] [stderr] 546 |     fn dump_fixedbit_str(&self, v: &FixedBitSet) -> String {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `write_dot`
[INFO] [stderr]    --> src/nfa.rs:559:12
[INFO] [stderr]     |
[INFO] [stderr] 559 |     pub fn write_dot(&self) -> String {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `dump_table`
[INFO] [stderr]    --> src/nfa.rs:594:12
[INFO] [stderr]     |
[INFO] [stderr] 594 |     pub fn dump_table(&self) -> String {
[INFO] [stderr]     |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Name`
[INFO] [stderr]   --> src/scanner.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     Name(String),
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_char_classes`
[INFO] [stderr]    --> src/scanner.rs:354:12
[INFO] [stderr]     |
[INFO] [stderr] 354 |     pub fn get_char_classes(&self) -> CharClasses {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_regex`
[INFO] [stderr]    --> src/scanner.rs:584:4
[INFO] [stderr]     |
[INFO] [stderr] 584 | fn parse_regex(line_num: usize, line: &String) -> Result<(IR, String), TranslateError> {
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `num`
[INFO] [stderr]    --> src/scanner.rs:681:12
[INFO] [stderr]     |
[INFO] [stderr] 681 |     pub fn num(num: i32) -> Action {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rflex` (lib) generated 17 warnings
[INFO] [stderr] warning: `rflex` (lib test) generated 11 warnings (11 duplicates)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:12:30
[INFO] [stderr]    |
[INFO] [stderr] 12 |                 for cause in failure::Fail::iter_chain(&e) {
[INFO] [stderr]    |                              ^^^^^^^^^^^^^ help: use `dyn`: `<dyn failure::Fail>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: `rflex` (bin "rflex" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rflex-98cc52459acfba32)
[INFO] [stdout] 
[INFO] [stdout] running 40 tests
[INFO] [stdout] test charclasses::tests::char_classes_intervals ... ok
[INFO] [stdout] test scanner::tests::fail_to_parse_literal ... ok
[INFO] [stdout] test scanner::tests::build_bol ... ok
[INFO] [stdout] test scanner::tests::a_b_c_dot ... ok
[INFO] [stdout] test charclasses::tests::char_class_interval_format ... ok
[INFO] [stdout] test charclasses::tests::interval_formatter ... ok
[INFO] [stdout] test charclasses::tests::int_char_set ... ok
[INFO] [stdout] test scanner::tests::build_bol2 ... ok
[INFO] [stdout] test scanner::tests::dfa_minimize_1 ... ok
[INFO] [stdout] test scanner::tests::condition_2 ... ok
[INFO] [stdout] test scanner::tests::build_trivial ... ok
[INFO] [stdout] test scanner::tests::nfa_build_alter2 ... ok
[INFO] [stdout] test scanner::tests::nfa_build_alter_group ... ok
[INFO] [stdout] test scanner::tests::eof_1 ... ok
[INFO] [stdout] test scanner::tests::nfa_build_rep3 ... ok
[INFO] [stdout] test scanner::tests::parse_dot ... ok
[INFO] [stdout] test scanner::tests::nfa_build_rep2 ... ok
[INFO] [stdout] test scanner::tests::nfa_build_char_class ... ok
[INFO] [stdout] test scanner::tests::nfa_build_str ... ok
[INFO] [stdout] test scanner::tests::parse_ir_trivial ... ok
[INFO] [stdout] test scanner::tests::nfa_build_repetition ... ok
[INFO] [stdout] test scanner::tests::parse_alternation_eq ... ok
[INFO] [stdout] test scanner::tests::parse_ir_bol ... ok
[INFO] [stdout] test scanner::tests::parse_ir_bracket ... ok
[INFO] [stdout] test scanner::tests::parse_ir_eq_group ... ok
[INFO] [stdout] test scanner::tests::nfa_build_notcharset ... ok
[INFO] [stdout] test scanner::tests::parse_ir_eq_concat_and_more ... ok
[INFO] [stdout] test scanner::tests::parse_ir_eq_alternation ... ok
[INFO] [stdout] test scanner::tests::parse_ir_eq_alternation_with_concat ... ok
[INFO] [stdout] test scanner::tests::parse_ir_eq_alternation_with_plus ... ok
[INFO] [stdout] test scanner::tests::nfa_build_charset ... ok
[INFO] [stdout] test scanner::tests::parse_literal_eq ... ok
[INFO] [stdout] test scanner::tests::parse_letter ... ok
[INFO] [stdout] test scanner::tests::parse_star ... ok
[INFO] [stdout] test scanner::tests::parse_literal ... ok
[INFO] [stdout] test scanner::tests::scan_multiple_line_action ... ok
[INFO] [stdout] test scanner::tests::test_char_class ... ok
[INFO] [stdout] test scanner::tests::nfa_build_alter ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rflex-c25ef5ca93ee60db)
[INFO] [stdout] test scanner::tests::lexer_1 ... ok
[INFO] [stdout] test scanner::tests::lexer_2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 40 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.24s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rflex
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4882370480ae6010fdceed8dbab0fffec88b8b6db9f97feac7f7c6a224220a8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4882370480ae6010fdceed8dbab0fffec88b8b6db9f97feac7f7c6a224220a8f", kill_on_drop: false }`
[INFO] [stdout] 4882370480ae6010fdceed8dbab0fffec88b8b6db9f97feac7f7c6a224220a8f