[INFO] cloning repository https://github.com/jsdw/advent-of-code-2019 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jsdw/advent-of-code-2019" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjsdw%2Fadvent-of-code-2019", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjsdw%2Fadvent-of-code-2019'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 094c2edfc4880a572ef58cd2fb4618f4551e8ce6 [INFO] checking jsdw/advent-of-code-2019 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjsdw%2Fadvent-of-code-2019" "/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/jsdw/advent-of-code-2019 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/jsdw/advent-of-code-2019 [INFO] finished tweaking git repo https://github.com/jsdw/advent-of-code-2019 [INFO] tweaked toml for git repo https://github.com/jsdw/advent-of-code-2019 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/jsdw/advent-of-code-2019 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 rayon-core v1.6.1 [INFO] [stderr] Downloaded structopt-derive v0.3.5 [INFO] [stderr] Downloaded crossbeam-queue v0.2.0 [INFO] [stderr] Downloaded atty v0.2.13 [INFO] [stderr] Downloaded proc-macro-error v0.2.6 [INFO] [stderr] Downloaded unicode-width v0.1.6 [INFO] [stderr] Downloaded once_cell v1.2.0 [INFO] [stderr] Downloaded num v0.2.0 [INFO] [stderr] Downloaded indexmap v1.3.0 [INFO] [stderr] Downloaded structopt v0.3.5 [INFO] [stderr] Downloaded num-bigint v0.2.3 [INFO] [stderr] Downloaded pathfinding v2.0.3 [INFO] [stderr] Downloaded rayon v1.2.1 [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] dc1974dbda06aa931f48455521dffe14a8ae23c2d74834024dc52463878e9e6c [INFO] running `Command { std: "docker" "start" "-a" "dc1974dbda06aa931f48455521dffe14a8ae23c2d74834024dc52463878e9e6c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "dc1974dbda06aa931f48455521dffe14a8ae23c2d74834024dc52463878e9e6c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dc1974dbda06aa931f48455521dffe14a8ae23c2d74834024dc52463878e9e6c", kill_on_drop: false }` [INFO] [stdout] dc1974dbda06aa931f48455521dffe14a8ae23c2d74834024dc52463878e9e6c [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] ec2f96b12c845c75d7a890f292863b15ab92d4463dfbf3a3aecd9d78be5f1721 [INFO] running `Command { std: "docker" "start" "-a" "ec2f96b12c845c75d7a890f292863b15ab92d4463dfbf3a3aecd9d78be5f1721", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Compiling syn v1.0.11 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] Checking unicode-width v0.1.6 [INFO] [stderr] Compiling rayon-core v1.6.1 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking fixedbitset v0.2.0 [INFO] [stderr] Compiling memoffset v0.5.3 [INFO] [stderr] Checking regex-syntax v0.6.12 [INFO] [stderr] Checking once_cell v1.2.0 [INFO] 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[stderr] Compiling structopt-derive v0.3.5 [INFO] [stderr] Checking structopt v0.3.5 [INFO] [stderr] Checking advent-of-code-2019 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `intcode::Intcode` [INFO] [stdout] --> src/support/mod.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | pub use intcode::Intcode; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `ReadIter` [INFO] [stdout] --> src/support/mod.rs:11:22 [INFO] [stdout] | [INFO] [stdout] 11 | pub use read_iter::{ ReadIter, IntoReadIter }; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `intcode::Intcode` [INFO] [stdout] --> src/support/mod.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | pub use intcode::Intcode; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `ReadIter` [INFO] [stdout] --> src/support/mod.rs:11:22 [INFO] [stdout] | [INFO] [stdout] 11 | pub use read_iter::{ ReadIter, IntoReadIter }; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 [INFO] [stdout] --> src/days/day12.rs:20:10 [INFO] [stdout] | [INFO] [stdout] 20 | .into_iter() [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 20 | .iter() [INFO] [stdout] | ~~~~ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 19 | let repeats: Vec<_> = IntoIterator::into_iter([Dimension::X, Dimension::Y, Dimension::Z]) [INFO] [stdout] | ++++++++++++++++++++++++ ~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 [INFO] [stdout] --> src/days/day15.rs:110:26 [INFO] [stdout] | [INFO] [stdout] 110 | .chain([(end,0)].into_iter().cloned()) [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 110 | .chain([(end,0)].iter().cloned()) [INFO] [stdout] | ~~~~ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 110 | .chain(IntoIterator::into_iter([(end,0)]).cloned()) [INFO] [stdout] | ++++++++++++++++++++++++ ~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 [INFO] [stdout] --> src/days/day15.rs:117:18 [INFO] [stdout] | [INFO] [stdout] 117 | .into_iter() [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 117 | .iter() [INFO] [stdout] | ~~~~ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 116 | let d = *IntoIterator::into_iter([Direction::North, Direction::East, Direction::South, Direction::West]) [INFO] [stdout] | ++++++++++++++++++++++++ ~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 [INFO] [stdout] --> src/days/day15.rs:153:11 [INFO] [stdout] | [INFO] [stdout] 153 | DIFFS.into_iter().map(move |(xd,yd)| (x+xd,y+yd)) [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 153 | DIFFS.iter().map(move |(xd,yd)| (x+xd,y+yd)) [INFO] [stdout] | ~~~~ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 153 | IntoIterator::into_iter(DIFFS).map(move |(xd,yd)| (x+xd,y+yd)) [INFO] [stdout] | ++++++++++++++++++++++++ ~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 [INFO] [stdout] --> src/days/day17.rs:93:15 [INFO] [stdout] | [INFO] [stdout] 93 | DIFFS.into_iter().map(move |(xd,yd)| (x+xd,y+yd)) [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 93 | DIFFS.iter().map(move |(xd,yd)| (x+xd,y+yd)) [INFO] [stdout] | ~~~~ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 93 | IntoIterator::into_iter(DIFFS).map(move |(xd,yd)| (x+xd,y+yd)) [INFO] [stdout] | ++++++++++++++++++++++++ ~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 [INFO] [stdout] --> src/days/day18.rs:108:10 [INFO] [stdout] | [INFO] [stdout] 108 | .into_iter() [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 108 | .iter() [INFO] [stdout] | ~~~~ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 107 | IntoIterator::into_iter([(0,1),(1,0),(-1,0),(0,-1)]) [INFO] [stdout] | ++++++++++++++++++++++++ ~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 [INFO] [stdout] --> src/days/day12.rs:20:10 [INFO] [stdout] | [INFO] [stdout] 20 | .into_iter() [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 20 | .iter() [INFO] [stdout] | ~~~~ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 19 | let repeats: Vec<_> = IntoIterator::into_iter([Dimension::X, Dimension::Y, Dimension::Z]) [INFO] [stdout] | ++++++++++++++++++++++++ ~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 [INFO] [stdout] --> src/days/day15.rs:110:26 [INFO] [stdout] | [INFO] [stdout] 110 | .chain([(end,0)].into_iter().cloned()) [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 110 | .chain([(end,0)].iter().cloned()) [INFO] [stdout] | ~~~~ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 110 | .chain(IntoIterator::into_iter([(end,0)]).cloned()) [INFO] [stdout] | ++++++++++++++++++++++++ ~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 [INFO] [stdout] --> src/days/day15.rs:117:18 [INFO] [stdout] | [INFO] [stdout] 117 | .into_iter() [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 117 | .iter() [INFO] [stdout] | ~~~~ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 116 | let d = *IntoIterator::into_iter([Direction::North, Direction::East, Direction::South, Direction::West]) [INFO] [stdout] | ++++++++++++++++++++++++ ~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 [INFO] [stdout] --> src/days/day15.rs:153:11 [INFO] [stdout] | [INFO] [stdout] 153 | DIFFS.into_iter().map(move |(xd,yd)| (x+xd,y+yd)) [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 153 | DIFFS.iter().map(move |(xd,yd)| (x+xd,y+yd)) [INFO] [stdout] | ~~~~ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 153 | IntoIterator::into_iter(DIFFS).map(move |(xd,yd)| (x+xd,y+yd)) [INFO] [stdout] | ++++++++++++++++++++++++ ~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 [INFO] [stdout] --> src/days/day17.rs:93:15 [INFO] [stdout] | [INFO] [stdout] 93 | DIFFS.into_iter().map(move |(xd,yd)| (x+xd,y+yd)) [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 93 | DIFFS.iter().map(move |(xd,yd)| (x+xd,y+yd)) [INFO] [stdout] | ~~~~ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 93 | IntoIterator::into_iter(DIFFS).map(move |(xd,yd)| (x+xd,y+yd)) [INFO] [stdout] | ++++++++++++++++++++++++ ~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021 [INFO] [stdout] --> src/days/day18.rs:108:10 [INFO] [stdout] | [INFO] [stdout] 108 | .into_iter() [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2021 [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity [INFO] [stdout] | [INFO] [stdout] 108 | .iter() [INFO] [stdout] | ~~~~ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 107 | IntoIterator::into_iter([(0,1),(1,0),(-1,0),(0,-1)]) [INFO] [stdout] | ++++++++++++++++++++++++ ~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.65s [INFO] running `Command { std: "docker" "inspect" "ec2f96b12c845c75d7a890f292863b15ab92d4463dfbf3a3aecd9d78be5f1721", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ec2f96b12c845c75d7a890f292863b15ab92d4463dfbf3a3aecd9d78be5f1721", kill_on_drop: false }` [INFO] [stdout] ec2f96b12c845c75d7a890f292863b15ab92d4463dfbf3a3aecd9d78be5f1721 [INFO] checking jsdw/advent-of-code-2019 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjsdw%2Fadvent-of-code-2019" "/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/jsdw/advent-of-code-2019 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/jsdw/advent-of-code-2019 [INFO] finished tweaking git repo https://github.com/jsdw/advent-of-code-2019 [INFO] tweaked toml for git repo https://github.com/jsdw/advent-of-code-2019 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/jsdw/advent-of-code-2019 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] 39b4bb90bd02ae0704c26378451b37e5c20f565b72bd33c9e90ee0a89f7c2398 [INFO] running `Command { std: "docker" "start" "-a" "39b4bb90bd02ae0704c26378451b37e5c20f565b72bd33c9e90ee0a89f7c2398", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "39b4bb90bd02ae0704c26378451b37e5c20f565b72bd33c9e90ee0a89f7c2398", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "39b4bb90bd02ae0704c26378451b37e5c20f565b72bd33c9e90ee0a89f7c2398", kill_on_drop: false }` [INFO] [stdout] 39b4bb90bd02ae0704c26378451b37e5c20f565b72bd33c9e90ee0a89f7c2398 [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] 79c1cf06604cb0dcb6f6cb102e8039e7eeecebf2a4ca13e083acd8b478e14d13 [INFO] running `Command { std: "docker" "start" "-a" "79c1cf06604cb0dcb6f6cb102e8039e7eeecebf2a4ca13e083acd8b478e14d13", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Compiling syn v1.0.11 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Compiling rayon-core v1.6.1 [INFO] [stderr] Checking unicode-width v0.1.6 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking fixedbitset v0.2.0 [INFO] [stderr] Checking regex-syntax v0.6.12 [INFO] [stderr] Checking once_cell v1.2.0 [INFO] [stderr] Compiling memoffset v0.5.3 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Compiling num-traits v0.2.10 [INFO] [stderr] Compiling crossbeam-utils v0.7.0 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Compiling crossbeam-epoch v0.8.0 [INFO] [stderr] Compiling num-bigint v0.2.3 [INFO] [stderr] Compiling num-rational v0.2.2 [INFO] [stderr] Compiling num-complex v0.2.3 [INFO] [stderr] Compiling num-iter v0.1.39 [INFO] [stderr] Compiling indexmap v1.3.0 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking num_cpus v1.11.1 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking crossbeam-queue v0.2.0 [INFO] [stderr] Checking crossbeam-deque v0.7.2 [INFO] [stderr] Checking rayon v1.2.1 [INFO] [stderr] Checking pathfinding v2.0.3 [INFO] [stderr] Checking regex v1.3.1 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.3.1/src/exec.rs:838:13 [INFO] [stdout] | [INFO] [stdout] 838 | / match dfa::Fsm::reverse( [INFO] [stdout] 839 | | &self.ro.dfa_reverse, [INFO] [stdout] 840 | | self.cache.value(), [INFO] [stdout] 841 | | false, [INFO] [stdout] ... | [INFO] [stdout] 852 | | Quit => return Some(Quit), [INFO] [stdout] 853 | | }; [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" "79c1cf06604cb0dcb6f6cb102e8039e7eeecebf2a4ca13e083acd8b478e14d13", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "79c1cf06604cb0dcb6f6cb102e8039e7eeecebf2a4ca13e083acd8b478e14d13", kill_on_drop: false }` [INFO] [stdout] 79c1cf06604cb0dcb6f6cb102e8039e7eeecebf2a4ca13e083acd8b478e14d13