[INFO] cloning repository https://github.com/2785/aoc2019-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/2785/aoc2019-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F2785%2Faoc2019-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F2785%2Faoc2019-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f2567d2dc17e2cf8d61d0d9b0fcff5f0501f1a88 [INFO] checking 2785/aoc2019-rust against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F2785%2Faoc2019-rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/2785/aoc2019-rust 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/2785/aoc2019-rust [INFO] finished tweaking git repo https://github.com/2785/aoc2019-rust [INFO] tweaked toml for git repo https://github.com/2785/aoc2019-rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/2785/aoc2019-rust 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 memoffset v0.6.1 [INFO] [stderr] Downloaded rawpointer v0.2.1 [INFO] [stderr] Downloaded permutohedron v0.2.4 [INFO] [stderr] Downloaded const_fn v0.4.4 [INFO] [stderr] Downloaded crossbeam-utils v0.8.1 [INFO] [stderr] Downloaded os_str_bytes v2.4.0 [INFO] [stderr] Downloaded textwrap v0.12.1 [INFO] [stderr] Downloaded clap_derive v3.0.0-beta.2 [INFO] [stderr] Downloaded indexmap v1.6.1 [INFO] [stderr] Downloaded matrixmultiply v0.2.4 [INFO] [stderr] Downloaded regex v1.4.2 [INFO] [stderr] Downloaded syn v1.0.56 [INFO] [stderr] Downloaded regex-syntax v0.6.21 [INFO] [stderr] Downloaded libc v0.2.81 [INFO] [stderr] Downloaded clap v3.0.0-beta.2 [INFO] [stderr] Downloaded ndarray v0.14.0 [INFO] [stderr] Downloaded crossbeam-epoch v0.9.1 [INFO] [stderr] Downloaded num-complex v0.3.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] ca3d2263c335aefd2034fab60e4f7732ddfafa1c23adb91ce31df455306f61e4 [INFO] running `Command { std: "docker" "start" "-a" "ca3d2263c335aefd2034fab60e4f7732ddfafa1c23adb91ce31df455306f61e4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ca3d2263c335aefd2034fab60e4f7732ddfafa1c23adb91ce31df455306f61e4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ca3d2263c335aefd2034fab60e4f7732ddfafa1c23adb91ce31df455306f61e4", kill_on_drop: false }` [INFO] [stdout] ca3d2263c335aefd2034fab60e4f7732ddfafa1c23adb91ce31df455306f61e4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e4c182d2e345121ba4170ba91410c420cf5f1cbd3e7e3c55d78b2ddcfe7b8b13 [INFO] running `Command { std: "docker" "start" "-a" "e4c182d2e345121ba4170ba91410c420cf5f1cbd3e7e3c55d78b2ddcfe7b8b13", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.1 [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling memoffset v0.6.1 [INFO] [stderr] Compiling const_fn v0.4.4 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Compiling syn v1.0.56 [INFO] [stderr] Compiling indexmap v1.6.1 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking num-traits v0.2.14 [INFO] [stderr] Compiling ndarray v0.14.0 [INFO] [stderr] Checking rawpointer v0.2.1 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking textwrap v0.12.1 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking matrixmultiply v0.2.4 [INFO] [stderr] Checking os_str_bytes v2.4.0 [INFO] [stderr] Checking regex-syntax v0.6.21 [INFO] [stderr] Checking permutohedron v0.2.4 [INFO] [stderr] Checking crossbeam-channel v0.5.0 [INFO] [stderr] Checking num-complex v0.3.1 [INFO] [stderr] Checking crossbeam-epoch v0.9.1 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking regex v1.4.2 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling clap_derive v3.0.0-beta.2 [INFO] [stderr] Checking clap v3.0.0-beta.2 [INFO] [stderr] Checking aoc2019 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Array` is imported redundantly [INFO] [stdout] --> src/days/day8.rs:3:15 [INFO] [stdout] | [INFO] [stdout] 2 | use ndarray::prelude::*; [INFO] [stdout] | ------------------- the item `Array` is already imported here [INFO] [stdout] 3 | use ndarray::{Array, Axis}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Axis` is imported redundantly [INFO] [stdout] --> src/days/day8.rs:3:22 [INFO] [stdout] | [INFO] [stdout] 2 | use ndarray::prelude::*; [INFO] [stdout] | ------------------- the item `Axis` is already imported here [INFO] [stdout] 3 | use ndarray::{Array, Axis}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Array` is imported redundantly [INFO] [stdout] --> src/days/day8.rs:3:15 [INFO] [stdout] | [INFO] [stdout] 2 | use ndarray::prelude::*; [INFO] [stdout] | ------------------- the item `Array` is already imported here [INFO] [stdout] 3 | use ndarray::{Array, Axis}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Axis` is imported redundantly [INFO] [stdout] --> src/days/day8.rs:3:22 [INFO] [stdout] | [INFO] [stdout] 2 | use ndarray::prelude::*; [INFO] [stdout] | ------------------- the item `Axis` is already imported here [INFO] [stdout] 3 | use ndarray::{Array, Axis}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `msg` is never read [INFO] [stdout] --> src/intcode.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 39 | pub struct ExecutionError { [INFO] [stdout] | -------------- field in this struct [INFO] [stdout] 40 | pub msg: String, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ExecutionError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&[Direction]` instead of cloning the inner type [INFO] [stdout] --> src/days/day3.rs:74:10 [INFO] [stdout] | [INFO] [stdout] 74 | d.clone() [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&[Direction]` instead of cloning the inner type [INFO] [stdout] --> src/days/day3.rs:119:10 [INFO] [stdout] | [INFO] [stdout] 119 | d.clone() [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `msg` is never read [INFO] [stdout] --> src/intcode.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 39 | pub struct ExecutionError { [INFO] [stdout] | -------------- field in this struct [INFO] [stdout] 40 | pub msg: String, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ExecutionError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&[Direction]` instead of cloning the inner type [INFO] [stdout] --> src/days/day3.rs:74:10 [INFO] [stdout] | [INFO] [stdout] 74 | d.clone() [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&[Direction]` instead of cloning the inner type [INFO] [stdout] --> src/days/day3.rs:119:10 [INFO] [stdout] | [INFO] [stdout] 119 | d.clone() [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.13s [INFO] running `Command { std: "docker" "inspect" "e4c182d2e345121ba4170ba91410c420cf5f1cbd3e7e3c55d78b2ddcfe7b8b13", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e4c182d2e345121ba4170ba91410c420cf5f1cbd3e7e3c55d78b2ddcfe7b8b13", kill_on_drop: false }` [INFO] [stdout] e4c182d2e345121ba4170ba91410c420cf5f1cbd3e7e3c55d78b2ddcfe7b8b13 [INFO] checking 2785/aoc2019-rust against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F2785%2Faoc2019-rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/2785/aoc2019-rust 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/2785/aoc2019-rust [INFO] finished tweaking git repo https://github.com/2785/aoc2019-rust [INFO] tweaked toml for git repo https://github.com/2785/aoc2019-rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/2785/aoc2019-rust 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 9ef3b136d02d8e96446829a383844a236e5eacf206acc328f11673c5b7b47828 [INFO] running `Command { std: "docker" "start" "-a" "9ef3b136d02d8e96446829a383844a236e5eacf206acc328f11673c5b7b47828", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9ef3b136d02d8e96446829a383844a236e5eacf206acc328f11673c5b7b47828", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9ef3b136d02d8e96446829a383844a236e5eacf206acc328f11673c5b7b47828", kill_on_drop: false }` [INFO] [stdout] 9ef3b136d02d8e96446829a383844a236e5eacf206acc328f11673c5b7b47828 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 0d0e7c40879ffd318a7f11843c3b4879e519460609c112b2139024ccf8d7d4f8 [INFO] running `Command { std: "docker" "start" "-a" "0d0e7c40879ffd318a7f11843c3b4879e519460609c112b2139024ccf8d7d4f8", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.1 [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling memoffset v0.6.1 [INFO] [stderr] Compiling const_fn v0.4.4 [INFO] [stderr] Compiling syn v1.0.56 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Compiling indexmap v1.6.1 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking num-traits v0.2.14 [INFO] [stderr] Checking rawpointer v0.2.1 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Compiling ndarray v0.14.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking textwrap v0.12.1 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Checking matrixmultiply v0.2.4 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking regex-syntax v0.6.21 [INFO] [stderr] Checking os_str_bytes v2.4.0 [INFO] [stderr] Checking termcolor v1.1.2 [INFO] [stderr] Checking permutohedron v0.2.4 [INFO] [stderr] Checking crossbeam-channel v0.5.0 [INFO] [stderr] Checking num-complex v0.3.1 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking crossbeam-epoch v0.9.1 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [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] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "0d0e7c40879ffd318a7f11843c3b4879e519460609c112b2139024ccf8d7d4f8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0d0e7c40879ffd318a7f11843c3b4879e519460609c112b2139024ccf8d7d4f8", kill_on_drop: false }` [INFO] [stdout] 0d0e7c40879ffd318a7f11843c3b4879e519460609c112b2139024ccf8d7d4f8