[INFO] cloning repository https://github.com/Deskbot/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/Deskbot/Advent-of-Code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeskbot%2FAdvent-of-Code-2020", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeskbot%2FAdvent-of-Code-2020'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 97d5a7e7e7f2a57ec64a5591688d1c2f5e90617d [INFO] checking Deskbot/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%2FDeskbot%2FAdvent-of-Code-2020" "/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/Deskbot/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/Deskbot/Advent-of-Code-2020 [INFO] finished tweaking git repo https://github.com/Deskbot/Advent-of-Code-2020 [INFO] tweaked toml for git repo https://github.com/Deskbot/Advent-of-Code-2020 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Deskbot/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] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded substring v1.4.0 [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] d5c7fb382a48fa5fa0a061c2c0d5fa798dcc60abe8c0b340c4e5d06f79b6e6e9 [INFO] running `Command { std: "docker" "start" "-a" "d5c7fb382a48fa5fa0a061c2c0d5fa798dcc60abe8c0b340c4e5d06f79b6e6e9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d5c7fb382a48fa5fa0a061c2c0d5fa798dcc60abe8c0b340c4e5d06f79b6e6e9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d5c7fb382a48fa5fa0a061c2c0d5fa798dcc60abe8c0b340c4e5d06f79b6e6e9", kill_on_drop: false }` [INFO] [stdout] d5c7fb382a48fa5fa0a061c2c0d5fa798dcc60abe8c0b340c4e5d06f79b6e6e9 [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] e023b8dcac4c57c1b963c16cc401648615ab7c45c4698d979a71fece89f129af [INFO] running `Command { std: "docker" "start" "-a" "e023b8dcac4c57c1b963c16cc401648615ab7c45c4698d979a71fece89f129af", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling substring v1.4.0 [INFO] [stderr] Checking regex-syntax v0.6.21 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking itertools v0.9.0 [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: `std::fs` [INFO] [stdout] --> src/day/day23.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs` [INFO] [stdout] --> src/day/day23.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p1` [INFO] [stdout] --> src/day/day22.rs:45:10 [INFO] [stdout] | [INFO] [stdout] 45 | fn part2(p1: Deck, p2: Deck) -> i64 { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p2` [INFO] [stdout] --> src/day/day22.rs:45:20 [INFO] [stdout] | [INFO] [stdout] 45 | fn part2(p1: Deck, p2: Deck) -> i64 { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cups` [INFO] [stdout] --> src/day/day23.rs:8:13 [INFO] [stdout] | [INFO] [stdout] 8 | let mut cups = Cups::parse(input); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_cups` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/day/day23.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let mut cups = Cups::parse(input); [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: fields `current_cup` and `list` are never read [INFO] [stdout] --> src/day/day23.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 13 | struct Cups { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 14 | current_cup: usize, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 15 | list: Vec [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `step` is never used [INFO] [stdout] --> src/day/day23.rs:30:12 [INFO] [stdout] | [INFO] [stdout] 18 | impl Cups { [INFO] [stdout] | --------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 30 | pub fn step(&mut self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `sum` is never used [INFO] [stdout] --> src/util.rs:93:8 [INFO] [stdout] | [INFO] [stdout] 92 | pub trait SumI64 { [INFO] [stdout] | ------ method in this trait [INFO] [stdout] 93 | fn sum(&mut self) -> i64; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `product` is never used [INFO] [stdout] --> src/util.rs:103:8 [INFO] [stdout] | [INFO] [stdout] 102 | pub trait ProductI64 { [INFO] [stdout] | ---------- method in this trait [INFO] [stdout] 103 | fn product(&mut self) -> i64; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p1` [INFO] [stdout] --> src/day/day22.rs:45:10 [INFO] [stdout] | [INFO] [stdout] 45 | fn part2(p1: Deck, p2: Deck) -> i64 { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p2` [INFO] [stdout] --> src/day/day22.rs:45:20 [INFO] [stdout] | [INFO] [stdout] 45 | fn part2(p1: Deck, p2: Deck) -> i64 { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_p2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `cups` [INFO] [stdout] --> src/day/day23.rs:8:13 [INFO] [stdout] | [INFO] [stdout] 8 | let mut cups = Cups::parse(input); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_cups` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/day/day23.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let mut cups = Cups::parse(input); [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: fields `current_cup` and `list` are never read [INFO] [stdout] --> src/day/day23.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 13 | struct Cups { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 14 | current_cup: usize, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 15 | list: Vec [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `step` is never used [INFO] [stdout] --> src/day/day23.rs:30:12 [INFO] [stdout] | [INFO] [stdout] 18 | impl Cups { [INFO] [stdout] | --------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 30 | pub fn step(&mut self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `sum` is never used [INFO] [stdout] --> src/util.rs:93:8 [INFO] [stdout] | [INFO] [stdout] 92 | pub trait SumI64 { [INFO] [stdout] | ------ method in this trait [INFO] [stdout] 93 | fn sum(&mut self) -> i64; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `product` is never used [INFO] [stdout] --> src/util.rs:103:8 [INFO] [stdout] | [INFO] [stdout] 102 | pub trait ProductI64 { [INFO] [stdout] | ---------- method in this trait [INFO] [stdout] 103 | fn product(&mut self) -> i64; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.17s [INFO] running `Command { std: "docker" "inspect" "e023b8dcac4c57c1b963c16cc401648615ab7c45c4698d979a71fece89f129af", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e023b8dcac4c57c1b963c16cc401648615ab7c45c4698d979a71fece89f129af", kill_on_drop: false }` [INFO] [stdout] e023b8dcac4c57c1b963c16cc401648615ab7c45c4698d979a71fece89f129af [INFO] checking Deskbot/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%2FDeskbot%2FAdvent-of-Code-2020" "/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/Deskbot/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/Deskbot/Advent-of-Code-2020 [INFO] finished tweaking git repo https://github.com/Deskbot/Advent-of-Code-2020 [INFO] tweaked toml for git repo https://github.com/Deskbot/Advent-of-Code-2020 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Deskbot/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-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] bf739a85bf0f5d013a3ddef726515435f1ec7b4b9767a8e1f780094865e6b846 [INFO] running `Command { std: "docker" "start" "-a" "bf739a85bf0f5d013a3ddef726515435f1ec7b4b9767a8e1f780094865e6b846", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bf739a85bf0f5d013a3ddef726515435f1ec7b4b9767a8e1f780094865e6b846", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bf739a85bf0f5d013a3ddef726515435f1ec7b4b9767a8e1f780094865e6b846", kill_on_drop: false }` [INFO] [stdout] bf739a85bf0f5d013a3ddef726515435f1ec7b4b9767a8e1f780094865e6b846 [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] 3b8a938e4d7220160732d9eb17b889146af423f922be6a3a052a6f273ade92aa [INFO] running `Command { std: "docker" "start" "-a" "3b8a938e4d7220160732d9eb17b889146af423f922be6a3a052a6f273ade92aa", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling substring v1.4.0 [INFO] [stderr] Checking regex-syntax v0.6.21 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking itertools v0.9.0 [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" "3b8a938e4d7220160732d9eb17b889146af423f922be6a3a052a6f273ade92aa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3b8a938e4d7220160732d9eb17b889146af423f922be6a3a052a6f273ade92aa", kill_on_drop: false }` [INFO] [stdout] 3b8a938e4d7220160732d9eb17b889146af423f922be6a3a052a6f273ade92aa