[INFO] cloning repository https://github.com/cosmobobak/rust-sudoku [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cosmobobak/rust-sudoku" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcosmobobak%2Frust-sudoku", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcosmobobak%2Frust-sudoku'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] dd93af3113ee505a538bc72e1eaa5cff8bc30e54 [INFO] checking cosmobobak/rust-sudoku against master#d14d202262d13df896b0c624b0cec6e4bfde631a for pr-143028 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcosmobobak%2Frust-sudoku" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/cosmobobak/rust-sudoku [INFO] finished tweaking git repo https://github.com/cosmobobak/rust-sudoku [INFO] tweaked toml for git repo https://github.com/cosmobobak/rust-sudoku written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/cosmobobak/rust-sudoku on toolchain d14d202262d13df896b0c624b0cec6e4bfde631a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/cosmobobak/rust-sudoku 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" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ab5ed339a9f26a268363093b8fb0981d73a767e99b6d6b55f01323d061537f9b [INFO] running `Command { std: "docker" "start" "-a" "ab5ed339a9f26a268363093b8fb0981d73a767e99b6d6b55f01323d061537f9b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ab5ed339a9f26a268363093b8fb0981d73a767e99b6d6b55f01323d061537f9b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ab5ed339a9f26a268363093b8fb0981d73a767e99b6d6b55f01323d061537f9b", kill_on_drop: false }` [INFO] [stdout] ab5ed339a9f26a268363093b8fb0981d73a767e99b6d6b55f01323d061537f9b [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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+d14d202262d13df896b0c624b0cec6e4bfde631a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 59635bcb4caa7f5280b87ecff31017e347c1be25aa71ac25f2c4622334ec19bc [INFO] running `Command { std: "docker" "start" "-a" "59635bcb4caa7f5280b87ecff31017e347c1be25aa71ac25f2c4622334ec19bc", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.43 [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Compiling unicode-ident v1.0.3 [INFO] [stderr] Compiling quote v1.0.21 [INFO] [stderr] Compiling syn v1.0.99 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling libc v0.2.129 [INFO] [stderr] Checking os_str_bytes v6.2.0 [INFO] [stderr] Compiling heck v0.4.0 [INFO] [stderr] Checking hashbrown v0.12.3 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking termcolor v1.1.3 [INFO] [stderr] Checking textwrap v0.15.0 [INFO] [stderr] Checking once_cell v1.13.0 [INFO] [stderr] Checking strsim v0.10.0 [INFO] [stderr] Checking clap_lex v0.2.4 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling indexmap v1.9.1 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Compiling clap_derive v3.2.15 [INFO] [stderr] Checking clap v3.2.16 [INFO] [stderr] Checking rust-sudoku v1.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/sudoku.rs:243:23 [INFO] [stdout] | [INFO] [stdout] 243 | pub const fn iter(&self) -> GlobalIterator { [INFO] [stdout] | ^^^^^ ------------------------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 243 | pub const fn iter(&self) -> GlobalIterator<'_, BOX_SIZE> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/sudoku.rs:243:23 [INFO] [stdout] | [INFO] [stdout] 243 | pub const fn iter(&self) -> GlobalIterator { [INFO] [stdout] | ^^^^^ ------------------------ the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 243 | pub const fn iter(&self) -> GlobalIterator<'_, BOX_SIZE> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/sudoku.rs:247:23 [INFO] [stdout] | [INFO] [stdout] 247 | const fn box_iter(&self, x: usize) -> BoxIterator { [INFO] [stdout] | ^^^^^ --------------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 247 | const fn box_iter(&self, x: usize) -> BoxIterator<'_, BOX_SIZE> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/sudoku.rs:247:23 [INFO] [stdout] | [INFO] [stdout] 247 | const fn box_iter(&self, x: usize) -> BoxIterator { [INFO] [stdout] | ^^^^^ --------------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 247 | const fn box_iter(&self, x: usize) -> BoxIterator<'_, BOX_SIZE> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.04s [INFO] running `Command { std: "docker" "inspect" "59635bcb4caa7f5280b87ecff31017e347c1be25aa71ac25f2c4622334ec19bc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "59635bcb4caa7f5280b87ecff31017e347c1be25aa71ac25f2c4622334ec19bc", kill_on_drop: false }` [INFO] [stdout] 59635bcb4caa7f5280b87ecff31017e347c1be25aa71ac25f2c4622334ec19bc