[INFO] cloning repository https://github.com/tyleo/advent_of_code_2020 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tyleo/advent_of_code_2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyleo%2Fadvent_of_code_2020", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyleo%2Fadvent_of_code_2020'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 24f40cd268405892ccbd67540e658ad0852285e1 [INFO] checking tyleo/advent_of_code_2020 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyleo%2Fadvent_of_code_2020" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tyleo/advent_of_code_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/tyleo/advent_of_code_2020 [INFO] finished tweaking git repo https://github.com/tyleo/advent_of_code_2020 [INFO] tweaked toml for git repo https://github.com/tyleo/advent_of_code_2020 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/tyleo/advent_of_code_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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ad62a617fff76d54811cb897d0a2af62c100a2a76385c1a8c58a4ab45feeef3c [INFO] running `Command { std: "docker" "start" "-a" "ad62a617fff76d54811cb897d0a2af62c100a2a76385c1a8c58a4ab45feeef3c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ad62a617fff76d54811cb897d0a2af62c100a2a76385c1a8c58a4ab45feeef3c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ad62a617fff76d54811cb897d0a2af62c100a2a76385c1a8c58a4ab45feeef3c", kill_on_drop: false }` [INFO] [stdout] ad62a617fff76d54811cb897d0a2af62c100a2a76385c1a8c58a4ab45feeef3c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 7050bd2f943085021cf2bb39f913e359f0439a735d0e030465980bc4b13b281f [INFO] running `Command { std: "docker" "start" "-a" "7050bd2f943085021cf2bb39f913e359f0439a735d0e030465980bc4b13b281f", 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 aho-corasick v0.7.15 [INFO] [stderr] Checking regex v1.4.2 [INFO] [stderr] Checking advent_of_code_2020 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `crate::util` [INFO] [stdout] --> src/problem_13_1.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::util; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::util` [INFO] [stdout] --> src/problem_13_2.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::util; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `regex` is imported redundantly [INFO] [stdout] --> src/problem_2_1.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use regex; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/main.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | extern crate regex; [INFO] [stdout] | ------------------- the item `regex` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::util` [INFO] [stdout] --> src/problem_13_1.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::util; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::util` [INFO] [stdout] --> src/problem_13_2.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::util; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `regex` is imported redundantly [INFO] [stdout] --> src/problem_2_1.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use regex; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/main.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | extern crate regex; [INFO] [stdout] | ------------------- the item `regex` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/problem_2_1.rs:42:10 [INFO] [stdout] | [INFO] [stdout] 42 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `regex` is imported redundantly [INFO] [stdout] --> src/problem_2_2.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use regex; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/main.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | extern crate regex; [INFO] [stdout] | ------------------- the item `regex` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/problem_2_2.rs:42:10 [INFO] [stdout] | [INFO] [stdout] 42 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/problem_2_1.rs:42:10 [INFO] [stdout] | [INFO] [stdout] 42 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `regex` is imported redundantly [INFO] [stdout] --> src/problem_2_2.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use regex; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/main.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | extern crate regex; [INFO] [stdout] | ------------------- the item `regex` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/problem_2_2.rs:42:10 [INFO] [stdout] | [INFO] [stdout] 42 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `bag` is never read [INFO] [stdout] --> src/problem_7_1.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 14 | struct BagWithRules { [INFO] [stdout] | ------------ field in this struct [INFO] [stdout] 15 | bag: Bag, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `BagWithRules` 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: field `bag` is never read [INFO] [stdout] --> src/problem_7_2.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 14 | struct BagWithRules { [INFO] [stdout] | ------------ field in this struct [INFO] [stdout] 15 | bag: Bag, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `BagWithRules` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `bag` is never read [INFO] [stdout] --> src/problem_7_1.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 14 | struct BagWithRules { [INFO] [stdout] | ------------ field in this struct [INFO] [stdout] 15 | bag: Bag, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `BagWithRules` 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: field `bag` is never read [INFO] [stdout] --> src/problem_7_2.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 14 | struct BagWithRules { [INFO] [stdout] | ------------ field in this struct [INFO] [stdout] 15 | bag: Bag, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `BagWithRules` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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 1.62s [INFO] running `Command { std: "docker" "inspect" "7050bd2f943085021cf2bb39f913e359f0439a735d0e030465980bc4b13b281f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7050bd2f943085021cf2bb39f913e359f0439a735d0e030465980bc4b13b281f", kill_on_drop: false }` [INFO] [stdout] 7050bd2f943085021cf2bb39f913e359f0439a735d0e030465980bc4b13b281f [INFO] checking tyleo/advent_of_code_2020 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyleo%2Fadvent_of_code_2020" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tyleo/advent_of_code_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/tyleo/advent_of_code_2020 [INFO] finished tweaking git repo https://github.com/tyleo/advent_of_code_2020 [INFO] tweaked toml for git repo https://github.com/tyleo/advent_of_code_2020 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/tyleo/advent_of_code_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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] fcc0193a5e426cfa4448a3630b8ca956005191cb63602e91344fefaf3253f043 [INFO] running `Command { std: "docker" "start" "-a" "fcc0193a5e426cfa4448a3630b8ca956005191cb63602e91344fefaf3253f043", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fcc0193a5e426cfa4448a3630b8ca956005191cb63602e91344fefaf3253f043", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fcc0193a5e426cfa4448a3630b8ca956005191cb63602e91344fefaf3253f043", kill_on_drop: false }` [INFO] [stdout] fcc0193a5e426cfa4448a3630b8ca956005191cb63602e91344fefaf3253f043 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] fa90af3e65ca14b512127535646fab9a600ff96e44c398bc7075d257a7ad4ec7 [INFO] running `Command { std: "docker" "start" "-a" "fa90af3e65ca14b512127535646fab9a600ff96e44c398bc7075d257a7ad4ec7", 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 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" "fa90af3e65ca14b512127535646fab9a600ff96e44c398bc7075d257a7ad4ec7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fa90af3e65ca14b512127535646fab9a600ff96e44c398bc7075d257a7ad4ec7", kill_on_drop: false }` [INFO] [stdout] fa90af3e65ca14b512127535646fab9a600ff96e44c398bc7075d257a7ad4ec7