[INFO] cloning repository https://github.com/mplanchard/aoc_2020 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mplanchard/aoc_2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmplanchard%2Faoc_2020", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmplanchard%2Faoc_2020'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4ac7268d230700a46cd60b338084f4210b54f96f [INFO] checking mplanchard/aoc_2020 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmplanchard%2Faoc_2020" "/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/mplanchard/aoc_2020 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/mplanchard/aoc_2020 [INFO] finished tweaking git repo https://github.com/mplanchard/aoc_2020 [INFO] tweaked toml for git repo https://github.com/mplanchard/aoc_2020 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/mplanchard/aoc_2020 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 v0.7.15 [INFO] [stderr] Downloaded thread_local v1.0.1 [INFO] [stderr] Downloaded anyhow v1.0.35 [INFO] [stderr] Downloaded memchr v2.3.4 [INFO] [stderr] Downloaded regex v1.4.2 [INFO] [stderr] Downloaded regex-syntax v0.6.21 [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] 89fac2eadcb84c6cb47aa759872f309d32720d35e695a1a356b246703d6c423f [INFO] running `Command { std: "docker" "start" "-a" "89fac2eadcb84c6cb47aa759872f309d32720d35e695a1a356b246703d6c423f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "89fac2eadcb84c6cb47aa759872f309d32720d35e695a1a356b246703d6c423f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "89fac2eadcb84c6cb47aa759872f309d32720d35e695a1a356b246703d6c423f", kill_on_drop: false }` [INFO] [stdout] 89fac2eadcb84c6cb47aa759872f309d32720d35e695a1a356b246703d6c423f [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] 73d247349e28454ea87841d9d0753254c1fe6c1baa624abc6722ab397a364fa8 [INFO] running `Command { std: "docker" "start" "-a" "73d247349e28454ea87841d9d0753254c1fe6c1baa624abc6722ab397a364fa8", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling anyhow v1.0.35 [INFO] [stderr] Checking regex-syntax v0.6.21 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Checking regex v1.4.2 [INFO] [stderr] Checking aoc_2020 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `anyhow` is imported redundantly [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use anyhow; [INFO] [stdout] | ^^^^^^ the item `anyhow` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `anyhow` is imported redundantly [INFO] [stdout] --> src/day2.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use anyhow; [INFO] [stdout] | ^^^^^^ the item `anyhow` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `anyhow` is imported redundantly [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use anyhow; [INFO] [stdout] | ^^^^^^ the item `anyhow` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `anyhow` is imported redundantly [INFO] [stdout] --> src/day2.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use anyhow; [INFO] [stdout] | ^^^^^^ the item `anyhow` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `number` and `unit` are never read [INFO] [stdout] --> src/day4.rs:43:5 [INFO] [stdout] | [INFO] [stdout] 42 | struct Height { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 43 | number: usize, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 44 | unit: HeightUnit, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Height` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple fields are never read [INFO] [stdout] --> src/day4.rs:89:5 [INFO] [stdout] | [INFO] [stdout] 88 | struct ValidPassport { [INFO] [stdout] | ------------- fields in this struct [INFO] [stdout] 89 | birth_year: usize, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 90 | issue_year: usize, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 91 | expiration_year: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] 92 | height: Height, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 93 | hair_color: String, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 94 | eye_color: EyeColor, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 95 | passport_id: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 96 | country_id: Option, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ValidPassport` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `number` and `unit` are never read [INFO] [stdout] --> src/day4.rs:43:5 [INFO] [stdout] | [INFO] [stdout] 42 | struct Height { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 43 | number: usize, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 44 | unit: HeightUnit, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Height` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple fields are never read [INFO] [stdout] --> src/day4.rs:89:5 [INFO] [stdout] | [INFO] [stdout] 88 | struct ValidPassport { [INFO] [stdout] | ------------- fields in this struct [INFO] [stdout] 89 | birth_year: usize, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 90 | issue_year: usize, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 91 | expiration_year: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] 92 | height: Height, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 93 | hair_color: String, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 94 | eye_color: EyeColor, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 95 | passport_id: String, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 96 | country_id: Option, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ValidPassport` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.73s [INFO] running `Command { std: "docker" "inspect" "73d247349e28454ea87841d9d0753254c1fe6c1baa624abc6722ab397a364fa8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "73d247349e28454ea87841d9d0753254c1fe6c1baa624abc6722ab397a364fa8", kill_on_drop: false }` [INFO] [stdout] 73d247349e28454ea87841d9d0753254c1fe6c1baa624abc6722ab397a364fa8 [INFO] checking mplanchard/aoc_2020 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmplanchard%2Faoc_2020" "/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/mplanchard/aoc_2020 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/mplanchard/aoc_2020 [INFO] finished tweaking git repo https://github.com/mplanchard/aoc_2020 [INFO] tweaked toml for git repo https://github.com/mplanchard/aoc_2020 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/mplanchard/aoc_2020 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] ec2746912f13aefd5400d09ec747f92fea344f9402cd7157f0977b12fc7b17ab [INFO] running `Command { std: "docker" "start" "-a" "ec2746912f13aefd5400d09ec747f92fea344f9402cd7157f0977b12fc7b17ab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ec2746912f13aefd5400d09ec747f92fea344f9402cd7157f0977b12fc7b17ab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ec2746912f13aefd5400d09ec747f92fea344f9402cd7157f0977b12fc7b17ab", kill_on_drop: false }` [INFO] [stdout] ec2746912f13aefd5400d09ec747f92fea344f9402cd7157f0977b12fc7b17ab [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] b018d448160c7d17cbfab397c1a9312006ac2b9c1e9c4bea95f20a70bdc5c8a2 [INFO] running `Command { std: "docker" "start" "-a" "b018d448160c7d17cbfab397c1a9312006ac2b9c1e9c4bea95f20a70bdc5c8a2", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling anyhow v1.0.35 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking regex-syntax v0.6.21 [INFO] [stderr] Checking thread_local v1.0.1 [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" "b018d448160c7d17cbfab397c1a9312006ac2b9c1e9c4bea95f20a70bdc5c8a2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b018d448160c7d17cbfab397c1a9312006ac2b9c1e9c4bea95f20a70bdc5c8a2", kill_on_drop: false }` [INFO] [stdout] b018d448160c7d17cbfab397c1a9312006ac2b9c1e9c4bea95f20a70bdc5c8a2