[INFO] cloning repository https://github.com/acochetti/adventofcode2020 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/acochetti/adventofcode2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facochetti%2Fadventofcode2020", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facochetti%2Fadventofcode2020'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 713524313110dd65f1e5e3c329bb179f5cfa5ec9 [INFO] checking acochetti/adventofcode2020 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facochetti%2Fadventofcode2020" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/acochetti/adventofcode2020 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/acochetti/adventofcode2020 [INFO] finished tweaking git repo https://github.com/acochetti/adventofcode2020 [INFO] tweaked toml for git repo https://github.com/acochetti/adventofcode2020 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/acochetti/adventofcode2020 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 grid v0.2.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7b117d058bcf2f5039e11b4060fcb0ae7574d0c45c1361b71607ca9808063b8a [INFO] running `Command { std: "docker" "start" "-a" "7b117d058bcf2f5039e11b4060fcb0ae7574d0c45c1361b71607ca9808063b8a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7b117d058bcf2f5039e11b4060fcb0ae7574d0c45c1361b71607ca9808063b8a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7b117d058bcf2f5039e11b4060fcb0ae7574d0c45c1361b71607ca9808063b8a", kill_on_drop: false }` [INFO] [stdout] 7b117d058bcf2f5039e11b4060fcb0ae7574d0c45c1361b71607ca9808063b8a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] cd09b32b04b56c2bdd4148db641fdde35d6756348bdba05173cccf85bb48ac0d [INFO] running `Command { std: "docker" "start" "-a" "cd09b32b04b56c2bdd4148db641fdde35d6756348bdba05173cccf85bb48ac0d", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking regex-syntax v0.6.21 [INFO] [stderr] Checking grid v0.2.3 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Checking regex v1.4.2 [INFO] [stderr] Checking adventofcode2020 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `repair_report` is never used [INFO] [stdout] --> src/solutions/day_1/day_1_1.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn repair_report(path: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `day_one_two` is never used [INFO] [stdout] --> src/solutions/day_1/day_1_2.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn day_one_two(path: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `validate_passwords` is never used [INFO] [stdout] --> src/solutions/day_2/day_2_1.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn validate_passwords(path: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `validate_password` is never used [INFO] [stdout] --> src/solutions/day_2/day_2_1.rs:13:4 [INFO] [stdout] | [INFO] [stdout] 13 | fn validate_password((minimum, maximum, character, password) : (usize, usize, char, &str)) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_line` is never used [INFO] [stdout] --> src/solutions/day_2/day_2_1.rs:21:4 [INFO] [stdout] | [INFO] [stdout] 21 | fn parse_line(line : &str) -> (usize, usize, char, &str) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `validate_passwords` is never used [INFO] [stdout] --> src/solutions/day_2/day_2_2.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn validate_passwords(path: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `validate_password` is never used [INFO] [stdout] --> src/solutions/day_2/day_2_2.rs:13:4 [INFO] [stdout] | [INFO] [stdout] 13 | fn validate_password((position_one, position_two, character, password) : (usize, usize, char, &str)) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_line` is never used [INFO] [stdout] --> src/solutions/day_2/day_2_2.rs:20:4 [INFO] [stdout] | [INFO] [stdout] 20 | fn parse_line(line : &str) -> (usize, usize, char, &str) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `navigate_map` is never used [INFO] [stdout] --> src/solutions/day_3/day_3.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn navigate_map(path: &str, move_right: usize, move_down: usize) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `create_map` is never used [INFO] [stdout] --> src/solutions/day_3/day_3.rs:28:4 [INFO] [stdout] | [INFO] [stdout] 28 | fn create_map(map_input : Vec, move_right: usize) -> Grid { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_passports` is never used [INFO] [stdout] --> src/solutions/day_4/day_4.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn parse_passports(input: &str) -> Vec> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `validate_passports` is never used [INFO] [stdout] --> src/solutions/day_4/day_4.rs:17:8 [INFO] [stdout] | [INFO] [stdout] 17 | pub fn validate_passports(input: &str) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `passport_has_required_fields` is never used [INFO] [stdout] --> src/solutions/day_4/day_4.rs:21:4 [INFO] [stdout] | [INFO] [stdout] 21 | fn passport_has_required_fields(passport: &HashMap<&str, &str>) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `passport_is_valid` is never used [INFO] [stdout] --> src/solutions/day_4/day_4.rs:25:4 [INFO] [stdout] | [INFO] [stdout] 25 | fn passport_is_valid(passport: &HashMap<&str, &str>) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `read_file` is never used [INFO] [stdout] --> src/utils/input_reader.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | pub fn read_file(path: &str) -> Result, Error> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 15 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.47s [INFO] running `Command { std: "docker" "inspect" "cd09b32b04b56c2bdd4148db641fdde35d6756348bdba05173cccf85bb48ac0d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cd09b32b04b56c2bdd4148db641fdde35d6756348bdba05173cccf85bb48ac0d", kill_on_drop: false }` [INFO] [stdout] cd09b32b04b56c2bdd4148db641fdde35d6756348bdba05173cccf85bb48ac0d [INFO] checking acochetti/adventofcode2020 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facochetti%2Fadventofcode2020" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/acochetti/adventofcode2020 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/acochetti/adventofcode2020 [INFO] finished tweaking git repo https://github.com/acochetti/adventofcode2020 [INFO] tweaked toml for git repo https://github.com/acochetti/adventofcode2020 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/acochetti/adventofcode2020 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 5c1cf761db5d84e3222e1691fea1823ed2340c38a76c2b7789bffa4c8561c234 [INFO] running `Command { std: "docker" "start" "-a" "5c1cf761db5d84e3222e1691fea1823ed2340c38a76c2b7789bffa4c8561c234", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5c1cf761db5d84e3222e1691fea1823ed2340c38a76c2b7789bffa4c8561c234", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5c1cf761db5d84e3222e1691fea1823ed2340c38a76c2b7789bffa4c8561c234", kill_on_drop: false }` [INFO] [stdout] 5c1cf761db5d84e3222e1691fea1823ed2340c38a76c2b7789bffa4c8561c234 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] f5503f36f3ced245d173cce7ab14b4740c78cc371df7affac4cbf5ff0321de8c [INFO] running `Command { std: "docker" "start" "-a" "f5503f36f3ced245d173cce7ab14b4740c78cc371df7affac4cbf5ff0321de8c", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking regex-syntax v0.6.21 [INFO] [stderr] Checking grid v0.2.3 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Checking regex v1.4.2 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.4.2/src/exec.rs:836:13 [INFO] [stdout] | [INFO] [stdout] 836 | / match dfa::Fsm::reverse( [INFO] [stdout] 837 | | &self.ro.dfa_reverse, [INFO] [stdout] 838 | | self.cache.value(), [INFO] [stdout] 839 | | false, [INFO] [stdout] ... | [INFO] [stdout] 850 | | Quit => return Some(Quit), [INFO] [stdout] 851 | | }; [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" "f5503f36f3ced245d173cce7ab14b4740c78cc371df7affac4cbf5ff0321de8c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f5503f36f3ced245d173cce7ab14b4740c78cc371df7affac4cbf5ff0321de8c", kill_on_drop: false }` [INFO] [stdout] f5503f36f3ced245d173cce7ab14b4740c78cc371df7affac4cbf5ff0321de8c