[INFO] cloning repository https://github.com/vasc/sudokugen
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vasc/sudokugen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvasc%2Fsudokugen", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvasc%2Fsudokugen'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4cfbeb414d2334ed870f4cf7b38fc9054a426269
[INFO] checking vasc/sudokugen against master#fe348cd1a8e0fa445b772393147ed865904dcd4d for pr-139587-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvasc%2Fsudokugen" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vasc/sudokugen on toolchain fe348cd1a8e0fa445b772393147ed865904dcd4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fe348cd1a8e0fa445b772393147ed865904dcd4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vasc/sudokugen
[INFO] finished tweaking git repo https://github.com/vasc/sudokugen
[INFO] tweaked toml for git repo https://github.com/vasc/sudokugen written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/vasc/sudokugen 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" "+fe348cd1a8e0fa445b772393147ed865904dcd4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded either v1.11.0
[INFO] [stderr]   Downloaded getrandom v0.2.14
[INFO] [stderr]   Downloaded windows-targets v0.52.5
[INFO] [stderr]   Downloaded crunchy v0.2.2
[INFO] [stderr]   Downloaded clap_lex v0.7.0
[INFO] [stderr]   Downloaded is-terminal v0.4.12
[INFO] [stderr]   Downloaded plotters-svg v0.3.5
[INFO] [stderr]   Downloaded plotters-backend v0.3.5
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.19
[INFO] [stderr]   Downloaded anstyle v1.0.6
[INFO] [stderr]   Downloaded log v0.4.21
[INFO] [stderr]   Downloaded num-traits v0.2.18
[INFO] [stderr]   Downloaded clap v4.5.4
[INFO] [stderr]   Downloaded proc-macro2 v1.0.81
[INFO] [stderr]   Downloaded memchr v2.7.2
[INFO] [stderr]   Downloaded serde v1.0.199
[INFO] [stderr]   Downloaded serde_derive v1.0.199
[INFO] [stderr]   Downloaded plotters v0.3.5
[INFO] [stderr]   Downloaded clap_builder v4.5.2
[INFO] [stderr]   Downloaded serde_json v1.0.116
[INFO] [stderr]   Downloaded ryu v1.0.17
[INFO] [stderr]   Downloaded oorandom v11.1.3
[INFO] [stderr]   Downloaded autocfg v1.2.0
[INFO] [stderr]   Downloaded regex v1.10.4
[INFO] [stderr]   Downloaded syn v2.0.60
[INFO] [stderr]   Downloaded regex-syntax v0.8.3
[INFO] [stderr]   Downloaded windows_aarch64_gnullvm v0.52.5
[INFO] [stderr]   Downloaded windows_i686_gnullvm v0.52.5
[INFO] [stderr]   Downloaded windows_x86_64_gnullvm v0.52.5
[INFO] [stderr]   Downloaded regex-automata v0.4.6
[INFO] [stderr]   Downloaded libc v0.2.153
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.52.5
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.52.5
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.52.5
[INFO] [stderr]   Downloaded windows_i686_msvc v0.52.5
[INFO] [stderr]   Downloaded windows_i686_gnu v0.52.5
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+fe348cd1a8e0fa445b772393147ed865904dcd4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51e6a74c7c26b01347b2c70c5485eff77a8d1ff432cd677bc26dac70f9bf8aeb
[INFO] running `Command { std: "docker" "start" "-a" "51e6a74c7c26b01347b2c70c5485eff77a8d1ff432cd677bc26dac70f9bf8aeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51e6a74c7c26b01347b2c70c5485eff77a8d1ff432cd677bc26dac70f9bf8aeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51e6a74c7c26b01347b2c70c5485eff77a8d1ff432cd677bc26dac70f9bf8aeb", kill_on_drop: false }`
[INFO] [stdout] 51e6a74c7c26b01347b2c70c5485eff77a8d1ff432cd677bc26dac70f9bf8aeb
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+fe348cd1a8e0fa445b772393147ed865904dcd4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48c21feb677ee9355b26efd5a46f80a23622634418ecd556ad6bb34fb1c0df7d
[INFO] running `Command { std: "docker" "start" "-a" "48c21feb677ee9355b26efd5a46f80a23622634418ecd556ad6bb34fb1c0df7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.81
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling serde v1.0.199
[INFO] [stderr]     Checking either v1.11.0
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling serde_json v1.0.116
[INFO] [stderr]     Checking clap_lex v0.7.0
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking plotters-backend v0.3.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking anstyle v1.0.6
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking plotters-svg v0.3.5
[INFO] [stderr]     Checking clap_builder v4.5.2
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking getrandom v0.2.14
[INFO] [stderr]     Checking is-terminal v0.4.12
[INFO] [stderr]     Checking rayon-core v1.12.1
[INFO] [stderr]    Compiling syn v2.0.60
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking clap v4.5.4
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]    Compiling serde_derive v1.0.199
[INFO] [stderr]     Checking sudokugen v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `debug`
[INFO] [stdout]    --> src/solver/candidate_cache.rs:267:11
[INFO] [stdout]     |
[INFO] [stdout] 267 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `debug`
[INFO] [stdout]    --> src/solver.rs:242:11
[INFO] [stdout]     |
[INFO] [stdout] 242 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `block` is never read
[INFO] [stdout]   --> src/solver/candidate_cache.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub struct Candidates<'a> {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 61 |     pub value: &'a u8,
[INFO] [stdout] 62 |     pub block: &'a Block,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stdout] warning: unexpected `cfg` condition name: `debug`
[INFO] [stdout]    --> src/solver/candidate_cache.rs:267:11
[INFO] [stdout]     |
[INFO] [stdout] 267 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `debug`
[INFO] [stdout]    --> src/solver.rs:242:11
[INFO] [stdout]     |
[INFO] [stdout] 242 |     #[cfg(debug)]
[INFO] [stdout]     |           ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `block` is never read
[INFO] [stdout]   --> src/solver/candidate_cache.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub struct Candidates<'a> {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 61 |     pub value: &'a u8,
[INFO] [stdout] 62 |     pub block: &'a Block,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.87s
[INFO] running `Command { std: "docker" "inspect" "48c21feb677ee9355b26efd5a46f80a23622634418ecd556ad6bb34fb1c0df7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48c21feb677ee9355b26efd5a46f80a23622634418ecd556ad6bb34fb1c0df7d", kill_on_drop: false }`
[INFO] [stdout] 48c21feb677ee9355b26efd5a46f80a23622634418ecd556ad6bb34fb1c0df7d