[INFO] cloning repository https://github.com/timvisee/aivd-2018-2-sudoku [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/timvisee/aivd-2018-2-sudoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimvisee%2Faivd-2018-2-sudoku", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimvisee%2Faivd-2018-2-sudoku'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 870748fd8ec137ea55764d463fd180882fe01854 [INFO] checking timvisee/aivd-2018-2-sudoku against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimvisee%2Faivd-2018-2-sudoku" "/workspace/builds/worker-5/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/timvisee/aivd-2018-2-sudoku on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/timvisee/aivd-2018-2-sudoku [INFO] finished tweaking git repo https://github.com/timvisee/aivd-2018-2-sudoku [INFO] tweaked toml for git repo https://github.com/timvisee/aivd-2018-2-sudoku written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/timvisee/aivd-2018-2-sudoku already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 44c1288ce2a1d9e1c5be158efa86b922fd286e8c2e552c20fa88ed9fc2945146 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "44c1288ce2a1d9e1c5be158efa86b922fd286e8c2e552c20fa88ed9fc2945146", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "44c1288ce2a1d9e1c5be158efa86b922fd286e8c2e552c20fa88ed9fc2945146", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "44c1288ce2a1d9e1c5be158efa86b922fd286e8c2e552c20fa88ed9fc2945146", kill_on_drop: false }` [INFO] [stdout] 44c1288ce2a1d9e1c5be158efa86b922fd286e8c2e552c20fa88ed9fc2945146 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f687a90e98ea3d1fefe7868c772bf962d6a9d0e52479fa4d23f8f424a7c71a8e [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "f687a90e98ea3d1fefe7868c772bf962d6a9d0e52479fa4d23f8f424a7c71a8e", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Compiling num-bigint v0.2.2 [INFO] [stderr] Compiling num-iter v0.1.37 [INFO] [stderr] Compiling libc v0.2.45 [INFO] [stderr] Compiling num-rational v0.2.1 [INFO] [stderr] Compiling num-complex v0.2.1 [INFO] [stderr] Compiling crunchy v0.2.1 [INFO] [stderr] Checking itertools v0.8.0 [INFO] [stderr] Checking rand v0.5.5 [INFO] [stderr] Checking num-integer v0.1.39 [INFO] [stderr] Checking sudoku v0.7.0 [INFO] [stderr] Checking num v0.2.0 [INFO] [stderr] Checking permutator v0.2.2 [INFO] [stderr] Checking aivd-sudoku v0.1.0 (/opt/rustwide/workdir) [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/main.rs:46:10 [INFO] [stdout] | [INFO] [stdout] 46 | .into_iter() [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [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] 46 | .iter() [INFO] [stdout] | ~~~~ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 35 ~ static ref SERIES: Vec> = IntoIterator::into_iter([ [INFO] [stdout] 36 | vec![(1, 1), (2, 1), (3, 2), (2, 2), (3, 1)], [INFO] [stdout] 37 | vec![(3, 4), (2, 3), (3, 3), (4, 4), (4, 3)], [INFO] [stdout] 38 | vec![(2, 7), (1, 6), (1, 5), (2, 4), (2, 5)], [INFO] [stdout] 39 | vec![(3, 6), (4, 6), (3, 7), (4, 7), (5, 8)], [INFO] [stdout] 40 | vec![(6, 7), (6, 8), (5, 9), (6, 9), (7, 9)], [INFO] [stdout] ... [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning 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/main.rs:46:10 [INFO] [stdout] | [INFO] [stdout] 46 | .into_iter() [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [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] 46 | .iter() [INFO] [stdout] | ~~~~ [INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value [INFO] [stdout] | [INFO] [stdout] 35 ~ static ref SERIES: Vec> = IntoIterator::into_iter([ [INFO] [stdout] 36 | vec![(1, 1), (2, 1), (3, 2), (2, 2), (3, 1)], [INFO] [stdout] 37 | vec![(3, 4), (2, 3), (3, 3), (4, 4), (4, 3)], [INFO] [stdout] 38 | vec![(2, 7), (1, 6), (1, 5), (2, 4), (2, 5)], [INFO] [stdout] 39 | vec![(3, 6), (4, 6), (3, 7), (4, 7), (5, 8)], [INFO] [stdout] 40 | vec![(6, 7), (6, 8), (5, 9), (6, 9), (7, 9)], [INFO] [stdout] ... [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 7.26s [INFO] running `Command { std: "docker" "inspect" "f687a90e98ea3d1fefe7868c772bf962d6a9d0e52479fa4d23f8f424a7c71a8e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f687a90e98ea3d1fefe7868c772bf962d6a9d0e52479fa4d23f8f424a7c71a8e", kill_on_drop: false }` [INFO] [stdout] f687a90e98ea3d1fefe7868c772bf962d6a9d0e52479fa4d23f8f424a7c71a8e