[INFO] fetching crate wordfeud-solver 0.3.1...
[INFO] checking wordfeud-solver-0.3.1 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate wordfeud-solver 0.3.1 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate wordfeud-solver 0.3.1 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wordfeud-solver 0.3.1
[INFO] finished tweaking crates.io crate wordfeud-solver 0.3.1
[INFO] tweaked toml for crates.io crate wordfeud-solver 0.3.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate wordfeud-solver 0.3.1 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" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.0
[INFO] [stderr]   Downloaded anyhow v1.0.34
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.0
[INFO] [stderr]   Downloaded csv v1.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27bf625a977ea0a94a3256211a480d95aabbe2bd913ce86bf0d25ef33d9c6907
[INFO] running `Command { std: "docker" "start" "-a" "27bf625a977ea0a94a3256211a480d95aabbe2bd913ce86bf0d25ef33d9c6907", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27bf625a977ea0a94a3256211a480d95aabbe2bd913ce86bf0d25ef33d9c6907", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27bf625a977ea0a94a3256211a480d95aabbe2bd913ce86bf0d25ef33d9c6907", kill_on_drop: false }`
[INFO] [stdout] 27bf625a977ea0a94a3256211a480d95aabbe2bd913ce86bf0d25ef33d9c6907
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21eb2c269e055b842fc4e4343604780992f34cad7888d95cda4c7c06bb714bb6
[INFO] running `Command { std: "docker" "start" "-a" "21eb2c269e055b842fc4e4343604780992f34cad7888d95cda4c7c06bb714bb6", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking rand_core v0.6.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling bitintr v0.3.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking rand v0.8.0
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking oorandom v11.1.2
[INFO] [stderr]     Checking tinyvec v1.0.1
[INFO] [stderr]     Checking multiset v0.0.5
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking csv v1.1.4
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking wordfeud-solver v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `EMPTY`
[INFO] [stdout]   --> src/tiles.rs:15:37
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub use codes::{Code, Label, BLANK, EMPTY};
[INFO] [stdout]    |                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Word`
[INFO] [stdout]  --> src/wordlist.rs:6:51
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use crate::tiles::{Item, ItemList, List, Row, Word};
[INFO] [stdout]   |                                                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `empty_row` is never read
[INFO] [stdout]   --> src/board.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct Board<'a> {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 60 |     board: Grid,
[INFO] [stdout] 61 |     empty_row: Row,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Board` 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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stdout] warning: unused import: `EMPTY`
[INFO] [stdout]   --> src/tiles.rs:15:37
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub use codes::{Code, Label, BLANK, EMPTY};
[INFO] [stdout]    |                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `empty_row` is never read
[INFO] [stdout]   --> src/board.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct Board<'a> {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 60 |     board: Grid,
[INFO] [stdout] 61 |     empty_row: Row,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Board` 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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.76s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "21eb2c269e055b842fc4e4343604780992f34cad7888d95cda4c7c06bb714bb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21eb2c269e055b842fc4e4343604780992f34cad7888d95cda4c7c06bb714bb6", kill_on_drop: false }`
[INFO] [stdout] 21eb2c269e055b842fc4e4343604780992f34cad7888d95cda4c7c06bb714bb6
