[INFO] cloning repository https://github.com/nslebruh/spell_lang_lexer [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nslebruh/spell_lang_lexer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnslebruh%2Fspell_lang_lexer", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnslebruh%2Fspell_lang_lexer'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3ff5b79fdadc8b31b7817b779bea0d0cbe600720 [INFO] checking nslebruh/spell_lang_lexer against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnslebruh%2Fspell_lang_lexer" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nslebruh/spell_lang_lexer on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/nslebruh/spell_lang_lexer [INFO] finished tweaking git repo https://github.com/nslebruh/spell_lang_lexer [INFO] tweaked toml for git repo https://github.com/nslebruh/spell_lang_lexer written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/nslebruh/spell_lang_lexer 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded aho-corasick v1.0.2 [INFO] [stderr] Downloaded regex v1.8.4 [INFO] [stderr] Downloaded regex-syntax v0.7.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6d1a6e53bfc23f4754c80a8003fc338eb4c76461c09d04d9061cefe5d3e44cd5 [INFO] running `Command { std: "docker" "start" "-a" "6d1a6e53bfc23f4754c80a8003fc338eb4c76461c09d04d9061cefe5d3e44cd5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6d1a6e53bfc23f4754c80a8003fc338eb4c76461c09d04d9061cefe5d3e44cd5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6d1a6e53bfc23f4754c80a8003fc338eb4c76461c09d04d9061cefe5d3e44cd5", kill_on_drop: false }` [INFO] [stdout] 6d1a6e53bfc23f4754c80a8003fc338eb4c76461c09d04d9061cefe5d3e44cd5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 42cd3fbda4d5ee306b5ef42de74681f41407e76090fbf61ba2424204cc2e7235 [INFO] running `Command { std: "docker" "start" "-a" "42cd3fbda4d5ee306b5ef42de74681f41407e76090fbf61ba2424204cc2e7235", kill_on_drop: false }` [INFO] [stderr] Checking regex-syntax v0.7.2 [INFO] [stderr] Checking aho-corasick v1.0.2 [INFO] [stderr] Checking regex v1.8.4 [INFO] [stderr] Checking spell_lexer v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `test` [INFO] [stdout] --> src/test.rs:176:9 [INFO] [stdout] | [INFO] [stdout] 176 | let test = "\"".chars().next().unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_test` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `test` [INFO] [stdout] --> src/test.rs:176:9 [INFO] [stdout] | [INFO] [stdout] 176 | let test = "\"".chars().next().unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_test` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `token_locations` and `last_row` are never read [INFO] [stdout] --> src/main.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 15 | struct Lexer { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 18 | token_locations: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | last_row: usize, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Value` is never used [INFO] [stdout] --> src/test.rs:4:6 [INFO] [stdout] | [INFO] [stdout] 4 | enum Value { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Token` is never used [INFO] [stdout] --> src/test.rs:82:6 [INFO] [stdout] | [INFO] [stdout] 82 | enum Token { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `token_locations` and `last_row` are never read [INFO] [stdout] --> src/main.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 15 | struct Lexer { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 18 | token_locations: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | last_row: usize, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Lexer` is never constructed [INFO] [stdout] --> src/test.rs:94:8 [INFO] [stdout] | [INFO] [stdout] 94 | struct Lexer { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `parse`, and `get_token` are never used [INFO] [stdout] --> src/test.rs:102:12 [INFO] [stdout] | [INFO] [stdout] 101 | impl Lexer { [INFO] [stdout] | ---------- associated items in this implementation [INFO] [stdout] 102 | pub fn new(input: &'static str) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 112 | fn parse(&mut self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 119 | fn get_token(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Value` is never used [INFO] [stdout] --> src/test.rs:4:6 [INFO] [stdout] | [INFO] [stdout] 4 | enum Value { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `read_lines` is never used [INFO] [stdout] --> src/test.rs:168:4 [INFO] [stdout] | [INFO] [stdout] 168 | fn read_lines

(filename: P) -> io::Result>> [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Token` is never used [INFO] [stdout] --> src/test.rs:82:6 [INFO] [stdout] | [INFO] [stdout] 82 | enum Token { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/test.rs:174:4 [INFO] [stdout] | [INFO] [stdout] 174 | fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Lexer` is never constructed [INFO] [stdout] --> src/test.rs:94:8 [INFO] [stdout] | [INFO] [stdout] 94 | struct Lexer { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `parse`, and `get_token` are never used [INFO] [stdout] --> src/test.rs:102:12 [INFO] [stdout] | [INFO] [stdout] 101 | impl Lexer { [INFO] [stdout] | ---------- associated items in this implementation [INFO] [stdout] 102 | pub fn new(input: &'static str) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 112 | fn parse(&mut self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 119 | fn get_token(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `read_lines` is never used [INFO] [stdout] --> src/test.rs:168:4 [INFO] [stdout] | [INFO] [stdout] 168 | fn read_lines

(filename: P) -> io::Result>> [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/test.rs:174:4 [INFO] [stdout] | [INFO] [stdout] 174 | fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.57s [INFO] running `Command { std: "docker" "inspect" "42cd3fbda4d5ee306b5ef42de74681f41407e76090fbf61ba2424204cc2e7235", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "42cd3fbda4d5ee306b5ef42de74681f41407e76090fbf61ba2424204cc2e7235", kill_on_drop: false }` [INFO] [stdout] 42cd3fbda4d5ee306b5ef42de74681f41407e76090fbf61ba2424204cc2e7235 [INFO] checking nslebruh/spell_lang_lexer against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnslebruh%2Fspell_lang_lexer" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nslebruh/spell_lang_lexer on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/nslebruh/spell_lang_lexer [INFO] finished tweaking git repo https://github.com/nslebruh/spell_lang_lexer [INFO] tweaked toml for git repo https://github.com/nslebruh/spell_lang_lexer written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/nslebruh/spell_lang_lexer 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2f92cdac59b4185532a5c334d05ab7e6ad84436ac238ad5d585ad4a0e51414b6 [INFO] running `Command { std: "docker" "start" "-a" "2f92cdac59b4185532a5c334d05ab7e6ad84436ac238ad5d585ad4a0e51414b6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2f92cdac59b4185532a5c334d05ab7e6ad84436ac238ad5d585ad4a0e51414b6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2f92cdac59b4185532a5c334d05ab7e6ad84436ac238ad5d585ad4a0e51414b6", kill_on_drop: false }` [INFO] [stdout] 2f92cdac59b4185532a5c334d05ab7e6ad84436ac238ad5d585ad4a0e51414b6 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 46059f2c637ae1d495cf5ae2a4cc493fe33b18bba737c03b26058bbdf189f4e9 [INFO] running `Command { std: "docker" "start" "-a" "46059f2c637ae1d495cf5ae2a4cc493fe33b18bba737c03b26058bbdf189f4e9", kill_on_drop: false }` [INFO] [stderr] Checking aho-corasick v1.0.2 [INFO] [stderr] Checking regex-syntax v0.7.2 [INFO] [stderr] Checking regex v1.8.4 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.8.4/src/exec.rs:899:13 [INFO] [stdout] | [INFO] [stdout] 899 | / match dfa::Fsm::reverse( [INFO] [stdout] 900 | | &self.ro.dfa_reverse, [INFO] [stdout] 901 | | self.cache.value(), [INFO] [stdout] 902 | | false, [INFO] [stdout] ... | [INFO] [stdout] 913 | | Quit => return Some(Quit), [INFO] [stdout] 914 | | }; [INFO] [stdout] | |_____________^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `regex` (lib) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "46059f2c637ae1d495cf5ae2a4cc493fe33b18bba737c03b26058bbdf189f4e9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "46059f2c637ae1d495cf5ae2a4cc493fe33b18bba737c03b26058bbdf189f4e9", kill_on_drop: false }` [INFO] [stdout] 46059f2c637ae1d495cf5ae2a4cc493fe33b18bba737c03b26058bbdf189f4e9