[INFO] cloning repository https://github.com/hkoosha/rust-regex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hkoosha/rust-regex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhkoosha%2Frust-regex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhkoosha%2Frust-regex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea66be0034a14edc35d51d46fbc1ad32a235f611
[INFO] checking hkoosha/rust-regex against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhkoosha%2Frust-regex" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hkoosha/rust-regex on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hkoosha/rust-regex
[INFO] finished tweaking git repo https://github.com/hkoosha/rust-regex
[INFO] tweaked toml for git repo https://github.com/hkoosha/rust-regex written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/hkoosha/rust-regex already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 85d33e5e0de1bab42d59178bc01cab044eae66652665edc71e544931dc9083b4
[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" "85d33e5e0de1bab42d59178bc01cab044eae66652665edc71e544931dc9083b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85d33e5e0de1bab42d59178bc01cab044eae66652665edc71e544931dc9083b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85d33e5e0de1bab42d59178bc01cab044eae66652665edc71e544931dc9083b4", kill_on_drop: false }`
[INFO] [stdout] 85d33e5e0de1bab42d59178bc01cab044eae66652665edc71e544931dc9083b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e50f94ff15ff6c8e7373776209ff998e3dbac4040282ad545bb475963e14727
[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" "8e50f94ff15ff6c8e7373776209ff998e3dbac4040282ad545bb475963e14727", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking regex v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/pda/mod.rs (3 fixes)
[INFO] [stderr]        Fixed src/regex2/functionals.rs (1 fix)
[INFO] [stderr]        Fixed src/regex0/constructs.rs (1 fix)
[INFO] [stderr]        Fixed src/regex0/constructs.rs (1 fix)
[INFO] [stdout] warning: struct is never constructed: `PDA`
[INFO] [stdout]  --> src/pda/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct PDA {
[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: `generate`
[INFO] [stdout]   --> src/pda/mod.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn generate(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_found`
[INFO] [stdout]   --> src/pda/mod.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn is_found(&self, _state: usize, input: &str, _stack: usize) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `epsilon`
[INFO] [stdout]   --> src/regex2/constructs.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     epsilon: Vec<RNfaState>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `delta`
[INFO] [stdout]   --> src/regex2/constructs.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     delta: HashMap<char, RNfaState>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/regex2/constructs.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(name: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_epsilon`
[INFO] [stdout]   --> src/regex2/constructs.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn add_epsilon(&mut self, state: RNfaState) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_delta`
[INFO] [stdout]   --> src/regex2/constructs.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn add_delta(&mut self, symbol: char, state: RNfaState) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `shunting_yard`
[INFO] [stdout]  --> src/regex2/functionals.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn shunting_yard(tokens: &str) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PDA`
[INFO] [stdout]  --> src/pda/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct PDA {
[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: `generate`
[INFO] [stdout]   --> src/pda/mod.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn generate(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_found`
[INFO] [stdout]   --> src/pda/mod.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn is_found(&self, _state: usize, input: &str, _stack: usize) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `epsilon`
[INFO] [stdout]   --> src/regex2/constructs.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     epsilon: Vec<RNfaState>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `delta`
[INFO] [stdout]   --> src/regex2/constructs.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     delta: HashMap<char, RNfaState>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/regex2/constructs.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(name: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_epsilon`
[INFO] [stdout]   --> src/regex2/constructs.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn add_epsilon(&mut self, state: RNfaState) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_delta`
[INFO] [stdout]   --> src/regex2/constructs.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn add_delta(&mut self, symbol: char, state: RNfaState) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `shunting_yard`
[INFO] [stdout]  --> src/regex2/functionals.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn shunting_yard(tokens: &str) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/main.rs (3 fixes)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.11s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking regex v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: struct is never constructed: `PDA`
[INFO] [stdout]  --> src/pda/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct PDA {
[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: `generate`
[INFO] [stdout]   --> src/pda/mod.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn generate(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_found`
[INFO] [stdout]   --> src/pda/mod.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn is_found(&self, _state: usize, input: &str, _stack: usize) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `epsilon`
[INFO] [stdout]   --> src/regex2/constructs.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     epsilon: Vec<RNfaState>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `delta`
[INFO] [stdout]   --> src/regex2/constructs.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     delta: HashMap<char, RNfaState>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/regex2/constructs.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(name: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_epsilon`
[INFO] [stdout]   --> src/regex2/constructs.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn add_epsilon(&mut self, state: RNfaState) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_delta`
[INFO] [stdout]   --> src/regex2/constructs.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn add_delta(&mut self, symbol: char, state: RNfaState) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `shunting_yard`
[INFO] [stdout]  --> src/regex2/functionals.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn shunting_yard(tokens: &str) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PDA`
[INFO] [stdout]  --> src/pda/mod.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct PDA {
[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: `generate`
[INFO] [stdout]   --> src/pda/mod.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn generate(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_found`
[INFO] [stdout]   --> src/pda/mod.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn is_found(&self, _state: usize, input: &str, _stack: usize) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `epsilon`
[INFO] [stdout]   --> src/regex2/constructs.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     epsilon: Vec<RNfaState>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `delta`
[INFO] [stdout]   --> src/regex2/constructs.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     delta: HashMap<char, RNfaState>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/regex2/constructs.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(name: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_epsilon`
[INFO] [stdout]   --> src/regex2/constructs.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn add_epsilon(&mut self, state: RNfaState) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_delta`
[INFO] [stdout]   --> src/regex2/constructs.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn add_delta(&mut self, symbol: char, state: RNfaState) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `shunting_yard`
[INFO] [stdout]  --> src/regex2/functionals.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn shunting_yard(tokens: &str) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "8e50f94ff15ff6c8e7373776209ff998e3dbac4040282ad545bb475963e14727", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e50f94ff15ff6c8e7373776209ff998e3dbac4040282ad545bb475963e14727", kill_on_drop: false }`
[INFO] [stdout] 8e50f94ff15ff6c8e7373776209ff998e3dbac4040282ad545bb475963e14727