[INFO] fetching crate ere-core 0.2.4...
[INFO] testing ere-core-0.2.4 against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] extracting crate ere-core 0.2.4 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate ere-core 0.2.4
[INFO] finished tweaking crates.io crate ere-core 0.2.4
[INFO] tweaked toml for crates.io crate ere-core 0.2.4 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ere-core 0.2.4 on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ere-core 0.2.4 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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 541a1bad4694f4de9bc7e1b15601c0e0d0187dd8c09e1218bbc23a65aaf81808
[INFO] running `Command { std: "docker" "start" "-a" "541a1bad4694f4de9bc7e1b15601c0e0d0187dd8c09e1218bbc23a65aaf81808", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "541a1bad4694f4de9bc7e1b15601c0e0d0187dd8c09e1218bbc23a65aaf81808", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "541a1bad4694f4de9bc7e1b15601c0e0d0187dd8c09e1218bbc23a65aaf81808", kill_on_drop: false }`
[INFO] [stdout] 541a1bad4694f4de9bc7e1b15601c0e0d0187dd8c09e1218bbc23a65aaf81808
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36615d7d1fd08959eece770ae1cb444a9c1ab428adb63693a2456e09f23a4297
[INFO] running `Command { std: "docker" "start" "-a" "36615d7d1fd08959eece770ae1cb444a9c1ab428adb63693a2456e09f23a4297", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling thiserror v2.0.11
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling thiserror-impl v2.0.11
[INFO] [stderr]    Compiling ere-core v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `accept_state`
[INFO] [stdout]    --> src/engines/flat_lockstep_nfa.rs:296:17
[INFO] [stdout]     |
[INFO] [stdout] 296 |             let accept_state = ImplVMStateLabel(state_count - 1);
[INFO] [stdout]     |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_accept_state`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `accept_state`
[INFO] [stdout]    --> src/engines/flat_lockstep_nfa_u8.rs:308:17
[INFO] [stdout]     |
[INFO] [stdout] 308 |             let accept_state = ImplVMStateLabel(state_count - 1);
[INFO] [stdout]     |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_accept_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `serialize_as_token_stream` is never used
[INFO] [stdout]   --> src/engines/nfa_static.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | impl NFATransitionStatic {
[INFO] [stdout]    | ------------------------ associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 94 |     fn serialize_as_token_stream(transition: &WorkingTransition) -> proc_macro2::TokenStream {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `serialize_as_token_stream` is never used
[INFO] [stdout]    --> src/engines/nfa_static.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 117 | impl NFAStateStatic {
[INFO] [stdout]     | ------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 127 |     fn serialize_as_token_stream(state: &WorkingState) -> proc_macro2::TokenStream {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `serialize_nfa_as_token_stream` is never used
[INFO] [stdout]    --> src/engines/nfa_static.rs:228:15
[INFO] [stdout]     |
[INFO] [stdout] 228 | pub(crate) fn serialize_nfa_as_token_stream(nfa: &WorkingNFA) -> proc_macro2::TokenStream {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `start_state` is never read
[INFO] [stdout]    --> src/engines/one_pass_u8.rs:157:5
[INFO] [stdout]     |
[INFO] [stdout] 156 | struct Run {
[INFO] [stdout]     |        --- field in this struct
[INFO] [stdout] 157 |     start_state: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Run` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `min` and `max` are never used
[INFO] [stdout]    --> src/parse_tree.rs:229:14
[INFO] [stdout]     |
[INFO] [stdout] 226 | impl QuantifierType {
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 229 |     const fn min(&self) -> u32 {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 240 |     const fn max(&self) -> Option<u32> {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `serialize_check` is never used
[INFO] [stdout]    --> src/parse_tree.rs:480:19
[INFO] [stdout]     |
[INFO] [stdout] 403 | impl Atom {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 480 |     pub(crate) fn serialize_check(&self) -> TokenStream {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_ere_no_group0` is never used
[INFO] [stdout]    --> src/simplified_tree.rs:260:19
[INFO] [stdout]     |
[INFO] [stdout] 164 | impl SimplifiedTreeNode {
[INFO] [stdout]     | ----------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 260 |     pub(crate) fn from_ere_no_group0(value: &ERE, config: &Config) -> (SimplifiedTreeNode, usize) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `graph` is never read
[INFO] [stdout]   --> src/visualization/layout.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct DAGLayout<'a> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 18 |     graph: &'a LatexGraph,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LayerNode` is never used
[INFO] [stdout]   --> src/visualization/layout.rs:94:14
[INFO] [stdout]    |
[INFO] [stdout] 94 |         enum LayerNode {
[INFO] [stdout]    |              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `with_offset` is never used
[INFO] [stdout]   --> src/working_nfa.rs:48:25
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl EpsilonTransition {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub(crate) const fn with_offset(self, offset: usize) -> EpsilonTransition {
[INFO] [stdout]    |                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `with_offset` is never used
[INFO] [stdout]   --> src/working_nfa.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 90 | impl WorkingTransition {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 94 |     pub fn with_offset(mut self, offset: usize) -> WorkingTransition {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `with_offset` is never used
[INFO] [stdout]   --> src/working_u8_nfa.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl U8Transition {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn with_offset(mut self, offset: usize) -> U8Transition {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated functions are never used
[INFO] [stdout]    --> src/working_u8_nfa.rs:155:8
[INFO] [stdout]     |
[INFO] [stdout] 153 | impl U8NFA {
[INFO] [stdout]     | ---------- associated functions in this implementation
[INFO] [stdout] 154 |     /// Makes an NFA that matches with zero length.
[INFO] [stdout] 155 |     fn nfa_empty() -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 160 |     fn nfa_byte(c: &U8Atom) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 165 |     fn nfa_symbol_char(c: char) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 225 |     fn nfa_union(nodes: &[U8NFA]) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 250 |     fn nfa_capture(nfa: &U8NFA, group_num: usize) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 267 |     fn nfa_concat<T: IntoIterator<Item = U8NFA>>(nodes: T) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 289 |     fn nfa_repeat(nfa: &U8NFA, times: usize) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 293 |     fn nfa_upto(nfa: &U8NFA, times: usize, longest: bool) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 335 |     fn nfa_star(nfa: U8NFA, longest: bool) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 359 |     fn nfa_start() -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 367 |     fn nfa_end() -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 375 |     fn nfa_never() -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.22s
[INFO] running `Command { std: "docker" "inspect" "36615d7d1fd08959eece770ae1cb444a9c1ab428adb63693a2456e09f23a4297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36615d7d1fd08959eece770ae1cb444a9c1ab428adb63693a2456e09f23a4297", kill_on_drop: false }`
[INFO] [stdout] 36615d7d1fd08959eece770ae1cb444a9c1ab428adb63693a2456e09f23a4297
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e9220dcf9afdf94109f3869bc4eb6007273404f490806ddab492d9f8a69182f
[INFO] running `Command { std: "docker" "start" "-a" "3e9220dcf9afdf94109f3869bc4eb6007273404f490806ddab492d9f8a69182f", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `accept_state`
[INFO] [stdout]    --> src/engines/flat_lockstep_nfa.rs:296:17
[INFO] [stdout]     |
[INFO] [stdout] 296 |             let accept_state = ImplVMStateLabel(state_count - 1);
[INFO] [stdout]     |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_accept_state`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `accept_state`
[INFO] [stdout]    --> src/engines/flat_lockstep_nfa_u8.rs:308:17
[INFO] [stdout]     |
[INFO] [stdout] 308 |             let accept_state = ImplVMStateLabel(state_count - 1);
[INFO] [stdout]     |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_accept_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `serialize_as_token_stream` is never used
[INFO] [stdout]   --> src/engines/nfa_static.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | impl NFATransitionStatic {
[INFO] [stdout]    | ------------------------ associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 94 |     fn serialize_as_token_stream(transition: &WorkingTransition) -> proc_macro2::TokenStream {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `serialize_as_token_stream` is never used
[INFO] [stdout]    --> src/engines/nfa_static.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 117 | impl NFAStateStatic {
[INFO] [stdout]     | ------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 127 |     fn serialize_as_token_stream(state: &WorkingState) -> proc_macro2::TokenStream {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `serialize_nfa_as_token_stream` is never used
[INFO] [stdout]    --> src/engines/nfa_static.rs:228:15
[INFO] [stdout]     |
[INFO] [stdout] 228 | pub(crate) fn serialize_nfa_as_token_stream(nfa: &WorkingNFA) -> proc_macro2::TokenStream {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `start_state` is never read
[INFO] [stdout]    --> src/engines/one_pass_u8.rs:157:5
[INFO] [stdout]     |
[INFO] [stdout] 156 | struct Run {
[INFO] [stdout]     |        --- field in this struct
[INFO] [stdout] 157 |     start_state: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Run` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `min` and `max` are never used
[INFO] [stdout]    --> src/parse_tree.rs:229:14
[INFO] [stdout]     |
[INFO] [stdout] 226 | impl QuantifierType {
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 229 |     const fn min(&self) -> u32 {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 240 |     const fn max(&self) -> Option<u32> {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `serialize_check` is never used
[INFO] [stdout]    --> src/parse_tree.rs:480:19
[INFO] [stdout]     |
[INFO] [stdout] 403 | impl Atom {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 480 |     pub(crate) fn serialize_check(&self) -> TokenStream {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_ere_no_group0` is never used
[INFO] [stdout]    --> src/simplified_tree.rs:260:19
[INFO] [stdout]     |
[INFO] [stdout] 164 | impl SimplifiedTreeNode {
[INFO] [stdout]     | ----------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 260 |     pub(crate) fn from_ere_no_group0(value: &ERE, config: &Config) -> (SimplifiedTreeNode, usize) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `graph` is never read
[INFO] [stdout]   --> src/visualization/layout.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct DAGLayout<'a> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 18 |     graph: &'a LatexGraph,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ere-core v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `LayerNode` is never used
[INFO] [stdout]   --> src/visualization/layout.rs:94:14
[INFO] [stdout]    |
[INFO] [stdout] 94 |         enum LayerNode {
[INFO] [stdout]    |              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `with_offset` is never used
[INFO] [stdout]   --> src/working_nfa.rs:48:25
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl EpsilonTransition {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub(crate) const fn with_offset(self, offset: usize) -> EpsilonTransition {
[INFO] [stdout]    |                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `with_offset` is never used
[INFO] [stdout]   --> src/working_nfa.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 90 | impl WorkingTransition {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 94 |     pub fn with_offset(mut self, offset: usize) -> WorkingTransition {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `with_offset` is never used
[INFO] [stdout]   --> src/working_u8_nfa.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl U8Transition {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn with_offset(mut self, offset: usize) -> U8Transition {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated functions are never used
[INFO] [stdout]    --> src/working_u8_nfa.rs:155:8
[INFO] [stdout]     |
[INFO] [stdout] 153 | impl U8NFA {
[INFO] [stdout]     | ---------- associated functions in this implementation
[INFO] [stdout] 154 |     /// Makes an NFA that matches with zero length.
[INFO] [stdout] 155 |     fn nfa_empty() -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 160 |     fn nfa_byte(c: &U8Atom) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 165 |     fn nfa_symbol_char(c: char) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 225 |     fn nfa_union(nodes: &[U8NFA]) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 250 |     fn nfa_capture(nfa: &U8NFA, group_num: usize) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 267 |     fn nfa_concat<T: IntoIterator<Item = U8NFA>>(nodes: T) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 289 |     fn nfa_repeat(nfa: &U8NFA, times: usize) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 293 |     fn nfa_upto(nfa: &U8NFA, times: usize, longest: bool) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 335 |     fn nfa_star(nfa: U8NFA, longest: bool) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 359 |     fn nfa_start() -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 367 |     fn nfa_end() -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 375 |     fn nfa_never() -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `accept_state`
[INFO] [stdout]    --> src/engines/flat_lockstep_nfa.rs:296:17
[INFO] [stdout]     |
[INFO] [stdout] 296 |             let accept_state = ImplVMStateLabel(state_count - 1);
[INFO] [stdout]     |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_accept_state`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `accept_state`
[INFO] [stdout]    --> src/engines/flat_lockstep_nfa_u8.rs:308:17
[INFO] [stdout]     |
[INFO] [stdout] 308 |             let accept_state = ImplVMStateLabel(state_count - 1);
[INFO] [stdout]     |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_accept_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nfa`
[INFO] [stdout]    --> src/working_u8_dfa.rs:614:13
[INFO] [stdout]     |
[INFO] [stdout] 614 |         let nfa = U8DFA::from_nfa(&nfa, 100).unwrap();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_nfa`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `serialize_as_token_stream` is never used
[INFO] [stdout]   --> src/engines/nfa_static.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | impl NFATransitionStatic {
[INFO] [stdout]    | ------------------------ associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 94 |     fn serialize_as_token_stream(transition: &WorkingTransition) -> proc_macro2::TokenStream {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `serialize_as_token_stream` is never used
[INFO] [stdout]    --> src/engines/nfa_static.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 117 | impl NFAStateStatic {
[INFO] [stdout]     | ------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 127 |     fn serialize_as_token_stream(state: &WorkingState) -> proc_macro2::TokenStream {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `serialize_nfa_as_token_stream` is never used
[INFO] [stdout]    --> src/engines/nfa_static.rs:228:15
[INFO] [stdout]     |
[INFO] [stdout] 228 | pub(crate) fn serialize_nfa_as_token_stream(nfa: &WorkingNFA) -> proc_macro2::TokenStream {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `start_state` is never read
[INFO] [stdout]    --> src/engines/one_pass_u8.rs:157:5
[INFO] [stdout]     |
[INFO] [stdout] 156 | struct Run {
[INFO] [stdout]     |        --- field in this struct
[INFO] [stdout] 157 |     start_state: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Run` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `min` and `max` are never used
[INFO] [stdout]    --> src/parse_tree.rs:229:14
[INFO] [stdout]     |
[INFO] [stdout] 226 | impl QuantifierType {
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 229 |     const fn min(&self) -> u32 {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] ...
[INFO] [stdout] 240 |     const fn max(&self) -> Option<u32> {
[INFO] [stdout]     |              ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `serialize_check` is never used
[INFO] [stdout]    --> src/parse_tree.rs:480:19
[INFO] [stdout]     |
[INFO] [stdout] 403 | impl Atom {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 480 |     pub(crate) fn serialize_check(&self) -> TokenStream {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_ere_no_group0` is never used
[INFO] [stdout]    --> src/simplified_tree.rs:260:19
[INFO] [stdout]     |
[INFO] [stdout] 164 | impl SimplifiedTreeNode {
[INFO] [stdout]     | ----------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 260 |     pub(crate) fn from_ere_no_group0(value: &ERE, config: &Config) -> (SimplifiedTreeNode, usize) {
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `graph` is never read
[INFO] [stdout]   --> src/visualization/layout.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct DAGLayout<'a> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 18 |     graph: &'a LatexGraph,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LayerNode` is never used
[INFO] [stdout]   --> src/visualization/layout.rs:94:14
[INFO] [stdout]    |
[INFO] [stdout] 94 |         enum LayerNode {
[INFO] [stdout]    |              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `with_offset` is never used
[INFO] [stdout]   --> src/working_nfa.rs:48:25
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl EpsilonTransition {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub(crate) const fn with_offset(self, offset: usize) -> EpsilonTransition {
[INFO] [stdout]    |                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `with_offset` is never used
[INFO] [stdout]   --> src/working_nfa.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 90 | impl WorkingTransition {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 94 |     pub fn with_offset(mut self, offset: usize) -> WorkingTransition {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `with_offset` is never used
[INFO] [stdout]   --> src/working_u8_nfa.rs:69:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | impl U8Transition {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 69 |     pub fn with_offset(mut self, offset: usize) -> U8Transition {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated functions are never used
[INFO] [stdout]    --> src/working_u8_nfa.rs:155:8
[INFO] [stdout]     |
[INFO] [stdout] 153 | impl U8NFA {
[INFO] [stdout]     | ---------- associated functions in this implementation
[INFO] [stdout] 154 |     /// Makes an NFA that matches with zero length.
[INFO] [stdout] 155 |     fn nfa_empty() -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 160 |     fn nfa_byte(c: &U8Atom) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 165 |     fn nfa_symbol_char(c: char) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 225 |     fn nfa_union(nodes: &[U8NFA]) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 250 |     fn nfa_capture(nfa: &U8NFA, group_num: usize) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 267 |     fn nfa_concat<T: IntoIterator<Item = U8NFA>>(nodes: T) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 289 |     fn nfa_repeat(nfa: &U8NFA, times: usize) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 293 |     fn nfa_upto(nfa: &U8NFA, times: usize, longest: bool) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 335 |     fn nfa_star(nfa: U8NFA, longest: bool) -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 359 |     fn nfa_start() -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 367 |     fn nfa_end() -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 375 |     fn nfa_never() -> U8NFA {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.46s
[INFO] running `Command { std: "docker" "inspect" "3e9220dcf9afdf94109f3869bc4eb6007273404f490806ddab492d9f8a69182f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e9220dcf9afdf94109f3869bc4eb6007273404f490806ddab492d9f8a69182f", kill_on_drop: false }`
[INFO] [stdout] 3e9220dcf9afdf94109f3869bc4eb6007273404f490806ddab492d9f8a69182f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cb25425dcfd9e432f3d85b0d9e0c3085fff05aa752b7a7f12bd5aeecc70baa48
[INFO] running `Command { std: "docker" "start" "-a" "cb25425dcfd9e432f3d85b0d9e0c3085fff05aa752b7a7f12bd5aeecc70baa48", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `accept_state`
[INFO] [stderr]    --> src/engines/flat_lockstep_nfa.rs:296:17
[INFO] [stderr]     |
[INFO] [stderr] 296 |             let accept_state = ImplVMStateLabel(state_count - 1);
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_accept_state`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `accept_state`
[INFO] [stderr]    --> src/engines/flat_lockstep_nfa_u8.rs:308:17
[INFO] [stderr]     |
[INFO] [stderr] 308 |             let accept_state = ImplVMStateLabel(state_count - 1);
[INFO] [stderr]     |                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_accept_state`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `serialize_as_token_stream` is never used
[INFO] [stderr]   --> src/engines/nfa_static.rs:94:8
[INFO] [stderr]    |
[INFO] [stderr] 89 | impl NFATransitionStatic {
[INFO] [stderr]    | ------------------------ associated function in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 94 |     fn serialize_as_token_stream(transition: &WorkingTransition) -> proc_macro2::TokenStream {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `serialize_as_token_stream` is never used
[INFO] [stderr]    --> src/engines/nfa_static.rs:127:8
[INFO] [stderr]     |
[INFO] [stderr] 117 | impl NFAStateStatic {
[INFO] [stderr]     | ------------------- associated function in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 127 |     fn serialize_as_token_stream(state: &WorkingState) -> proc_macro2::TokenStream {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `serialize_nfa_as_token_stream` is never used
[INFO] [stderr]    --> src/engines/nfa_static.rs:228:15
[INFO] [stderr]     |
[INFO] [stderr] 228 | pub(crate) fn serialize_nfa_as_token_stream(nfa: &WorkingNFA) -> proc_macro2::TokenStream {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `start_state` is never read
[INFO] [stderr]    --> src/engines/one_pass_u8.rs:157:5
[INFO] [stderr]     |
[INFO] [stderr] 156 | struct Run {
[INFO] [stderr]     |        --- field in this struct
[INFO] [stderr] 157 |     start_state: usize,
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Run` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: methods `min` and `max` are never used
[INFO] [stderr]    --> src/parse_tree.rs:229:14
[INFO] [stderr]     |
[INFO] [stderr] 226 | impl QuantifierType {
[INFO] [stderr]     | ------------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 229 |     const fn min(&self) -> u32 {
[INFO] [stderr]     |              ^^^
[INFO] [stderr] ...
[INFO] [stderr] 240 |     const fn max(&self) -> Option<u32> {
[INFO] [stderr]     |              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `serialize_check` is never used
[INFO] [stderr]    --> src/parse_tree.rs:480:19
[INFO] [stderr]     |
[INFO] [stderr] 403 | impl Atom {
[INFO] [stderr]     | --------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 480 |     pub(crate) fn serialize_check(&self) -> TokenStream {
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `from_ere_no_group0` is never used
[INFO] [stderr]    --> src/simplified_tree.rs:260:19
[INFO] [stderr]     |
[INFO] [stderr] 164 | impl SimplifiedTreeNode {
[INFO] [stderr]     | ----------------------- associated function in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 260 |     pub(crate) fn from_ere_no_group0(value: &ERE, config: &Config) -> (SimplifiedTreeNode, usize) {
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `graph` is never read
[INFO] [stderr]   --> src/visualization/layout.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub struct DAGLayout<'a> {
[INFO] [stderr]    |            --------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 18 |     graph: &'a LatexGraph,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `LayerNode` is never used
[INFO] [stderr]   --> src/visualization/layout.rs:94:14
[INFO] [stderr]    |
[INFO] [stderr] 94 |         enum LayerNode {
[INFO] [stderr]    |              ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `with_offset` is never used
[INFO] [stderr]   --> src/working_nfa.rs:48:25
[INFO] [stderr]    |
[INFO] [stderr] 41 | impl EpsilonTransition {
[INFO] [stderr]    | ---------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 48 |     pub(crate) const fn with_offset(self, offset: usize) -> EpsilonTransition {
[INFO] [stderr]    |                         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `with_offset` is never used
[INFO] [stderr]   --> src/working_nfa.rs:94:12
[INFO] [stderr]    |
[INFO] [stderr] 90 | impl WorkingTransition {
[INFO] [stderr]    | ---------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 94 |     pub fn with_offset(mut self, offset: usize) -> WorkingTransition {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `with_offset` is never used
[INFO] [stderr]   --> src/working_u8_nfa.rs:69:12
[INFO] [stderr]    |
[INFO] [stderr] 65 | impl U8Transition {
[INFO] [stderr]    | ----------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 69 |     pub fn with_offset(mut self, offset: usize) -> U8Transition {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple associated functions are never used
[INFO] [stderr]    --> src/working_u8_nfa.rs:155:8
[INFO] [stderr]     |
[INFO] [stderr] 153 | impl U8NFA {
[INFO] [stderr]     | ---------- associated functions in this implementation
[INFO] [stderr] 154 |     /// Makes an NFA that matches with zero length.
[INFO] [stderr] 155 |     fn nfa_empty() -> U8NFA {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 160 |     fn nfa_byte(c: &U8Atom) -> U8NFA {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 165 |     fn nfa_symbol_char(c: char) -> U8NFA {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 225 |     fn nfa_union(nodes: &[U8NFA]) -> U8NFA {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 250 |     fn nfa_capture(nfa: &U8NFA, group_num: usize) -> U8NFA {
[INFO] [stderr]     |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 267 |     fn nfa_concat<T: IntoIterator<Item = U8NFA>>(nodes: T) -> U8NFA {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 289 |     fn nfa_repeat(nfa: &U8NFA, times: usize) -> U8NFA {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 293 |     fn nfa_upto(nfa: &U8NFA, times: usize, longest: bool) -> U8NFA {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 335 |     fn nfa_star(nfa: U8NFA, longest: bool) -> U8NFA {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 359 |     fn nfa_start() -> U8NFA {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 367 |     fn nfa_end() -> U8NFA {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 375 |     fn nfa_never() -> U8NFA {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ere-core` (lib) generated 15 warnings (run `cargo fix --lib -p ere-core` to apply 2 suggestions)
[INFO] [stderr] warning: unused variable: `nfa`
[INFO] [stderr]    --> src/working_u8_dfa.rs:614:13
[INFO] [stderr]     |
[INFO] [stderr] 614 |         let nfa = U8DFA::from_nfa(&nfa, 100).unwrap();
[INFO] [stderr]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_nfa`
[INFO] [stderr] 
[INFO] [stderr] warning: `ere-core` (lib test) generated 16 warnings (15 duplicates) (run `cargo fix --lib -p ere-core --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ere_core-b197b8e23bfcc4eb)
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test parse_tree::tests::parse_atom_brackets ... ok
[INFO] [stdout] test parse_tree::tests::parse_atom_err ... ok
[INFO] [stdout] test parse_tree::tests::atom_to_ranges_normal_char ... ok
[INFO] [stdout] test parse_tree::tests::atom_eq ... ok
[INFO] [stdout] test parse_tree::tests::atom_to_ranges_matching_list ... ok
[INFO] [stdout] test parse_tree::tests::parse_atom_simple ... ok
[INFO] [stdout] test parse_tree::tests::parse_quantifiers ... ok
[INFO] [stdout] test working_nfa::tests::abbc_raw ... ok
[INFO] [stdout] test parse_tree::tests::reconstruction ... ok
[INFO] [stdout] test working_nfa::tests::double_loop ... ok
[INFO] [stdout] test working_nfa::tests::good_anchored_start ... ok
[INFO] [stdout] test working_nfa::tests::range_digit ... ok
[INFO] [stdout] test working_u8_nfa::tests::range_digit ... ok
[INFO] [stdout] test working_nfa::tests::phone_number ... ok
[INFO] [stdout] test working_nfa::tests::good_anchored_end ... ok
[INFO] [stdout] test parse_tree::tests::atom_to_ranges_nonmatching_list ... ok
[INFO] [stdout] test working_u8_nfa::tests::double_loop ... ok
[INFO] [stdout] test working_u8_nfa::tests::abbc_raw ... ok
[INFO] [stdout] test working_u8_dfa::tests::phone_number ... ok
[INFO] [stdout] test working_u8_nfa::tests::good_anchored_start ... ok
[INFO] [stdout] test working_u8_nfa::tests::good_anchored_end ... ok
[INFO] [stdout] test working_u8_nfa::tests::phone_number ... ok
[INFO] [stdout] test working_u8_nfa::tests::dot ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 10.69s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ere_core
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test src/engines/flat_lockstep_nfa.rs - engines::flat_lockstep_nfa::impl_exec::ImplTransitionStateEpsilon (line 423) ... ignored
[INFO] [stdout] test src/engines/flat_lockstep_nfa.rs - engines::flat_lockstep_nfa::impl_exec::TransitionEpsilons (line 476) ... ignored
[INFO] [stdout] test src/engines/flat_lockstep_nfa.rs - engines::flat_lockstep_nfa::impl_exec::TransitionSymbols (line 366) ... ignored
[INFO] [stdout] test src/engines/flat_lockstep_nfa.rs - engines::flat_lockstep_nfa::impl_test::ImplTransitionStateEpsilon (line 170) ... ignored
[INFO] [stdout] test src/engines/flat_lockstep_nfa.rs - engines::flat_lockstep_nfa::impl_test::TransitionEpsilons (line 224) ... ignored
[INFO] [stdout] test src/engines/flat_lockstep_nfa_u8.rs - engines::flat_lockstep_nfa_u8::impl_exec::ImplTransitionStateEpsilon (line 435) ... ignored
[INFO] [stdout] test src/engines/flat_lockstep_nfa_u8.rs - engines::flat_lockstep_nfa_u8::impl_exec::TransitionEpsilons (line 489) ... ignored
[INFO] [stdout] test src/engines/flat_lockstep_nfa_u8.rs - engines::flat_lockstep_nfa_u8::impl_exec::TransitionSymbols (line 378) ... ignored
[INFO] [stdout] test src/engines/flat_lockstep_nfa_u8.rs - engines::flat_lockstep_nfa_u8::impl_test::ImplTransitionStateEpsilon (line 182) ... ignored
[INFO] [stdout] test src/engines/flat_lockstep_nfa_u8.rs - engines::flat_lockstep_nfa_u8::impl_test::TransitionEpsilons (line 236) ... ignored
[INFO] [stdout] test src/engines/flat_lockstep_nfa_u8.rs - engines::flat_lockstep_nfa_u8::impl_test::TransitionSymbols (line 130) ... ignored
[INFO] [stdout] test src/engines/one_pass_u8.rs - engines::one_pass_u8::functional_exec::StateFn (line 989) ... ignored
[INFO] [stdout] test src/engines/one_pass_u8.rs - engines::one_pass_u8::functional_test::StateFn (line 753) ... ignored
[INFO] [stdout] test src/parse_tree.rs - parse_tree::match_prefix (line 16) ... FAILED
[INFO] [stdout] test src/parse_tree.rs - parse_tree::Atom (line 361) ... ok
[INFO] [stdout] test src/parse_tree.rs - parse_tree::Atom::to_ranges (line 493) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/parse_tree.rs - parse_tree::match_prefix (line 16) stdout ----
[INFO] [stdout] error: cannot find macro `match_prefix` in this scope
[INFO] [stdout]   --> src/parse_tree.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | let test = match_prefix!(text, {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this enum variant takes 1 argument but 2 arguments were supplied
[INFO] [stdout]   --> src/parse_tree.rs:24:18
[INFO] [stdout]    |
[INFO] [stdout] 24 | assert_eq!(test, Some("df", 2));
[INFO] [stdout]    |                  ^^^^       - unexpected argument #2 of type `{integer}`
[INFO] [stdout]    |
[INFO] [stdout] note: tuple variant defined here
[INFO] [stdout]   --> /rustc/db823df02fd0c2cf67b43025ac3fef3f2d743245/library/core/src/option.rs:608:4
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]    |
[INFO] [stdout] 24 - assert_eq!(test, Some("df", 2));
[INFO] [stdout] 24 + assert_eq!(test, Some("df"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0061`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/parse_tree.rs - parse_tree::match_prefix (line 16)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 1 failed; 13 ignored; 0 measured; 0 filtered out; finished in 0.51s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "cb25425dcfd9e432f3d85b0d9e0c3085fff05aa752b7a7f12bd5aeecc70baa48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb25425dcfd9e432f3d85b0d9e0c3085fff05aa752b7a7f12bd5aeecc70baa48", kill_on_drop: false }`
[INFO] [stdout] cb25425dcfd9e432f3d85b0d9e0c3085fff05aa752b7a7f12bd5aeecc70baa48
