[INFO] cloning repository https://github.com/terakun/syntactic_monoid [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/terakun/syntactic_monoid" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fterakun%2Fsyntactic_monoid", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fterakun%2Fsyntactic_monoid'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 74a94df4aa27f5aa2492693dbd167f596e147fe0 [INFO] checking terakun/syntactic_monoid against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fterakun%2Fsyntactic_monoid" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/terakun/syntactic_monoid on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/terakun/syntactic_monoid [INFO] finished tweaking git repo https://github.com/terakun/syntactic_monoid [INFO] tweaked toml for git repo https://github.com/terakun/syntactic_monoid written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/terakun/syntactic_monoid already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1186851a1b25a058103ea73488f2fec655e45cb7a1629032ce067a0bd7e2ddae [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" "1186851a1b25a058103ea73488f2fec655e45cb7a1629032ce067a0bd7e2ddae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1186851a1b25a058103ea73488f2fec655e45cb7a1629032ce067a0bd7e2ddae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1186851a1b25a058103ea73488f2fec655e45cb7a1629032ce067a0bd7e2ddae", kill_on_drop: false }` [INFO] [stdout] 1186851a1b25a058103ea73488f2fec655e45cb7a1629032ce067a0bd7e2ddae [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 546b0091091c9ea9619ea6902158cab2b9c1d5a17f987fc1d0b730021709f72b [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" "546b0091091c9ea9619ea6902158cab2b9c1d5a17f987fc1d0b730021709f72b", kill_on_drop: false }` [INFO] [stderr] Checking bit-vec v0.4.4 [INFO] [stderr] Checking bit-set v0.4.0 [INFO] [stderr] Checking syntactic_monoid v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `regex::RegularExpression` [INFO] [stdout] --> src/syntactic_monoid.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use regex::RegularExpression; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `regex::RegularExpression` [INFO] [stdout] --> src/syntactic_monoid.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use regex::RegularExpression; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/nfa.rs:125:21 [INFO] [stdout] | [INFO] [stdout] 125 | let mut s_f = State::new(1, true); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/nfa.rs:146:21 [INFO] [stdout] | [INFO] [stdout] 146 | let mut nfa1 = NFA::construct(e1); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/nfa.rs:148:21 [INFO] [stdout] | [INFO] [stdout] 148 | let mut nfa2 = NFA::construct(e2); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/nfa.rs:151:21 [INFO] [stdout] | [INFO] [stdout] 151 | let mut s_i2 = nfa2.start.clone(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/nfa.rs:221:21 [INFO] [stdout] | [INFO] [stdout] 221 | let mut nfa = NFA::construct(e); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/nfa.rs:226:21 [INFO] [stdout] | [INFO] [stdout] 226 | let mut s_f = State::new(snum + 1, true); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/nfa.rs:125:21 [INFO] [stdout] | [INFO] [stdout] 125 | let mut s_f = State::new(1, true); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/nfa.rs:146:21 [INFO] [stdout] | [INFO] [stdout] 146 | let mut nfa1 = NFA::construct(e1); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/nfa.rs:148:21 [INFO] [stdout] | [INFO] [stdout] 148 | let mut nfa2 = NFA::construct(e2); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/nfa.rs:151:21 [INFO] [stdout] | [INFO] [stdout] 151 | let mut s_i2 = nfa2.start.clone(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/nfa.rs:221:21 [INFO] [stdout] | [INFO] [stdout] 221 | let mut nfa = NFA::construct(e); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/nfa.rs:226:21 [INFO] [stdout] | [INFO] [stdout] 226 | let mut s_f = State::new(snum + 1, true); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/dfa.rs:161:25 [INFO] [stdout] | [INFO] [stdout] 161 | if let Some(mut v) = transition_map.get_mut(&(s.t.clone(), s.accept)) { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/dfa.rs:161:25 [INFO] [stdout] | [INFO] [stdout] 161 | if let Some(mut v) = transition_map.get_mut(&(s.t.clone(), s.accept)) { [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Empty` [INFO] [stdout] --> src/regex.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | Empty, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Epsilon` [INFO] [stdout] --> src/regex.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | Epsilon, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `print_trans` [INFO] [stdout] --> src/nfa.rs:32:12 [INFO] [stdout] | [INFO] [stdout] 32 | pub fn print_trans(&self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `to_graphviz` [INFO] [stdout] --> src/nfa.rs:253:12 [INFO] [stdout] | [INFO] [stdout] 253 | pub fn to_graphviz(&self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_trans` [INFO] [stdout] --> src/dfa.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 23 | pub fn set_trans(&mut self, transition: &Vec) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `add_trans` [INFO] [stdout] --> src/dfa.rs:29:12 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn add_trans(&mut self, id: i32, ch: usize) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `print_trans` [INFO] [stdout] --> src/dfa.rs:32:12 [INFO] [stdout] | [INFO] [stdout] 32 | pub fn print_trans(&self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `print_subset` [INFO] [stdout] --> src/dfa.rs:71:12 [INFO] [stdout] | [INFO] [stdout] 71 | pub fn print_subset(subset: &SubSet) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `accept` [INFO] [stdout] --> src/dfa.rs:227:12 [INFO] [stdout] | [INFO] [stdout] 227 | pub fn accept(&self, input: &Vec) -> bool { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `alphabets` [INFO] [stdout] --> src/syntactic_monoid.rs:75:5 [INFO] [stdout] | [INFO] [stdout] 75 | alphabets: BitSet, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Empty` [INFO] [stdout] --> src/regex.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | Empty, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Epsilon` [INFO] [stdout] --> src/regex.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | Epsilon, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `print_trans` [INFO] [stdout] --> src/nfa.rs:32:12 [INFO] [stdout] | [INFO] [stdout] 32 | pub fn print_trans(&self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `to_graphviz` [INFO] [stdout] --> src/nfa.rs:253:12 [INFO] [stdout] | [INFO] [stdout] 253 | pub fn to_graphviz(&self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `set_trans` [INFO] [stdout] --> src/dfa.rs:23:12 [INFO] [stdout] | [INFO] [stdout] 23 | pub fn set_trans(&mut self, transition: &Vec) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `add_trans` [INFO] [stdout] --> src/dfa.rs:29:12 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn add_trans(&mut self, id: i32, ch: usize) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `print_trans` [INFO] [stdout] --> src/dfa.rs:32:12 [INFO] [stdout] | [INFO] [stdout] 32 | pub fn print_trans(&self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `print_subset` [INFO] [stdout] --> src/dfa.rs:71:12 [INFO] [stdout] | [INFO] [stdout] 71 | pub fn print_subset(subset: &SubSet) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `accept` [INFO] [stdout] --> src/dfa.rs:227:12 [INFO] [stdout] | [INFO] [stdout] 227 | pub fn accept(&self, input: &Vec) -> bool { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `alphabets` [INFO] [stdout] --> src/syntactic_monoid.rs:75:5 [INFO] [stdout] | [INFO] [stdout] 75 | alphabets: BitSet, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 18 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 18 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.16s [INFO] running `Command { std: "docker" "inspect" "546b0091091c9ea9619ea6902158cab2b9c1d5a17f987fc1d0b730021709f72b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "546b0091091c9ea9619ea6902158cab2b9c1d5a17f987fc1d0b730021709f72b", kill_on_drop: false }` [INFO] [stdout] 546b0091091c9ea9619ea6902158cab2b9c1d5a17f987fc1d0b730021709f72b