[INFO] fetching crate wordfeud-solver 0.3.1...
[INFO] testing wordfeud-solver-0.3.1 against 1.83.0 for beta-1.84.0-4-retry
[INFO] extracting crate wordfeud-solver 0.3.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate wordfeud-solver 0.3.1 on toolchain 1.83.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "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-1-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" "+1.83.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitintr v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4061a63787ae0a7551b348f2876056ae9715290e3bdd8960e3717e5252f2874
[INFO] running `Command { std: "docker" "start" "-a" "f4061a63787ae0a7551b348f2876056ae9715290e3bdd8960e3717e5252f2874", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4061a63787ae0a7551b348f2876056ae9715290e3bdd8960e3717e5252f2874", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4061a63787ae0a7551b348f2876056ae9715290e3bdd8960e3717e5252f2874", kill_on_drop: false }`
[INFO] [stdout] f4061a63787ae0a7551b348f2876056ae9715290e3bdd8960e3717e5252f2874
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8bfe722af5c505c3bb99ad3719c519350ad3d3e602e8a8d2a3f212b492586170
[INFO] running `Command { std: "docker" "start" "-a" "8bfe722af5c505c3bb99ad3719c519350ad3d3e602e8a8d2a3f212b492586170", 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]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling bitintr v0.3.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling tinyvec v1.0.1
[INFO] [stderr]    Compiling multiset v0.0.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling rand_core v0.6.0
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling rand v0.8.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling thiserror v1.0.22
[INFO] [stderr]    Compiling wordfeud-solver v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `flame_it`
[INFO] [stdout]   --> src/board.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg(feature = "flame_it")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `bincode`, `bitintr`, `default`, `rayon`, and `serde`
[INFO] [stdout]    = help: consider adding `flame_it` as a feature in `Cargo.toml`
[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 value: `flame_it`
[INFO] [stdout]    --> src/board.rs:403:16
[INFO] [stdout]     |
[INFO] [stdout] 403 |     #[cfg_attr(feature = "flame_it", flame)]
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `bincode`, `bitintr`, `default`, `rayon`, and `serde`
[INFO] [stdout]     = help: consider adding `flame_it` as a feature in `Cargo.toml`
[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: 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: elided lifetime has a name
[INFO] [stdout]    --> src/wordlist/matches.rs:130:10
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn matches<'a>(
[INFO] [stdout]     |                    -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 130 |     ) -> Matches {
[INFO] [stdout]     |          ^^^^^^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` 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: method `has` is never used
[INFO] [stdout]   --> src/wordlist/trievec.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub trait Trie<T> {
[INFO] [stdout]    |           ---- method in this trait
[INFO] [stdout] 13 |     /// Returns `true` if the trie contains `key`.
[INFO] [stdout] 14 |     fn has<K: AsRef<[T]>>(&self, key: K) -> bool;
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.67s
[INFO] running `Command { std: "docker" "inspect" "8bfe722af5c505c3bb99ad3719c519350ad3d3e602e8a8d2a3f212b492586170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bfe722af5c505c3bb99ad3719c519350ad3d3e602e8a8d2a3f212b492586170", kill_on_drop: false }`
[INFO] [stdout] 8bfe722af5c505c3bb99ad3719c519350ad3d3e602e8a8d2a3f212b492586170
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d98b7dc06535dc26fb8ecb90fd3d4b4df0db8af2bb2d8dd5945b9e3d557f248
[INFO] running `Command { std: "docker" "start" "-a" "2d98b7dc06535dc26fb8ecb90fd3d4b4df0db8af2bb2d8dd5945b9e3d557f248", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]    Compiling half v1.6.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling oorandom v11.1.2
[INFO] [stdout] warning: unexpected `cfg` condition value: `flame_it`
[INFO] [stdout]   --> src/board.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg(feature = "flame_it")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `bincode`, `bitintr`, `default`, `rayon`, and `serde`
[INFO] [stdout]    = help: consider adding `flame_it` as a feature in `Cargo.toml`
[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 value: `flame_it`
[INFO] [stdout]    --> src/board.rs:403:16
[INFO] [stdout]     |
[INFO] [stdout] 403 |     #[cfg_attr(feature = "flame_it", flame)]
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `bincode`, `bitintr`, `default`, `rayon`, and `serde`
[INFO] [stdout]     = help: consider adding `flame_it` as a feature in `Cargo.toml`
[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: 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: elided lifetime has a name
[INFO] [stdout]    --> src/wordlist/matches.rs:130:10
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn matches<'a>(
[INFO] [stdout]     |                    -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 130 |     ) -> Matches {
[INFO] [stdout]     |          ^^^^^^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` 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: method `has` is never used
[INFO] [stdout]   --> src/wordlist/trievec.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub trait Trie<T> {
[INFO] [stdout]    |           ---- method in this trait
[INFO] [stdout] 13 |     /// Returns `true` if the trie contains `key`.
[INFO] [stdout] 14 |     fn has<K: AsRef<[T]>>(&self, key: K) -> bool;
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling criterion-plot v0.4.3
[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling csv v1.1.4
[INFO] [stderr]    Compiling tinytemplate v1.1.0
[INFO] [stderr]    Compiling criterion v0.3.3
[INFO] [stderr]    Compiling wordfeud-solver v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `flame_it`
[INFO] [stdout]   --> src/board.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg(feature = "flame_it")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `bincode`, `bitintr`, `default`, `rayon`, and `serde`
[INFO] [stdout]    = help: consider adding `flame_it` as a feature in `Cargo.toml`
[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 value: `flame_it`
[INFO] [stdout]    --> src/board.rs:403:16
[INFO] [stdout]     |
[INFO] [stdout] 403 |     #[cfg_attr(feature = "flame_it", flame)]
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected values for `feature` are: `bincode`, `bitintr`, `default`, `rayon`, and `serde`
[INFO] [stdout]     = help: consider adding `flame_it` as a feature in `Cargo.toml`
[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: 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: elided lifetime has a name
[INFO] [stdout]    --> src/wordlist/matches.rs:130:10
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn matches<'a>(
[INFO] [stdout]     |                    -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 130 |     ) -> Matches {
[INFO] [stdout]     |          ^^^^^^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(elided_named_lifetimes)]` 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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 21.96s
[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" "2d98b7dc06535dc26fb8ecb90fd3d4b4df0db8af2bb2d8dd5945b9e3d557f248", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d98b7dc06535dc26fb8ecb90fd3d4b4df0db8af2bb2d8dd5945b9e3d557f248", kill_on_drop: false }`
[INFO] [stdout] 2d98b7dc06535dc26fb8ecb90fd3d4b4df0db8af2bb2d8dd5945b9e3d557f248
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 953a9db2d630df7369a0dd14d13d62b9626901364ec282f212aa06989e9cc1d3
[INFO] running `Command { std: "docker" "start" "-a" "953a9db2d630df7369a0dd14d13d62b9626901364ec282f212aa06989e9cc1d3", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition value: `flame_it`
[INFO] [stderr]   --> src/board.rs:10:7
[INFO] [stderr]    |
[INFO] [stderr] 10 | #[cfg(feature = "flame_it")]
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: expected values for `feature` are: `bincode`, `bitintr`, `default`, `rayon`, and `serde`
[INFO] [stderr]    = help: consider adding `flame_it` as a feature in `Cargo.toml`
[INFO] [stderr]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unexpected `cfg` condition value: `flame_it`
[INFO] [stderr]    --> src/board.rs:403:16
[INFO] [stderr]     |
[INFO] [stderr] 403 |     #[cfg_attr(feature = "flame_it", flame)]
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected values for `feature` are: `bincode`, `bitintr`, `default`, `rayon`, and `serde`
[INFO] [stderr]     = help: consider adding `flame_it` as a feature in `Cargo.toml`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `EMPTY`
[INFO] [stderr]   --> src/tiles.rs:15:37
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub use codes::{Code, Label, BLANK, EMPTY};
[INFO] [stderr]    |                                     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: elided lifetime has a name
[INFO] [stderr]    --> src/wordlist/matches.rs:130:10
[INFO] [stderr]     |
[INFO] [stderr] 123 |     pub fn matches<'a>(
[INFO] [stderr]     |                    -- lifetime `'a` declared here
[INFO] [stderr] ...
[INFO] [stderr] 130 |     ) -> Matches {
[INFO] [stderr]     |          ^^^^^^^ this elided lifetime gets resolved as `'a`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(elided_named_lifetimes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Word`
[INFO] [stderr]  --> src/wordlist.rs:6:51
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub use crate::tiles::{Item, ItemList, List, Row, Word};
[INFO] [stderr]   |                                                   ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `empty_row` is never read
[INFO] [stderr]   --> src/board.rs:61:5
[INFO] [stderr]    |
[INFO] [stderr] 59 | pub struct Board<'a> {
[INFO] [stderr]    |            ----- field in this struct
[INFO] [stderr] 60 |     board: Grid,
[INFO] [stderr] 61 |     empty_row: Row,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Board` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `has` is never used
[INFO] [stderr]   --> src/wordlist/trievec.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub trait Trie<T> {
[INFO] [stderr]    |           ---- method in this trait
[INFO] [stderr] 13 |     /// Returns `true` if the trie contains `key`.
[INFO] [stderr] 14 |     fn has<K: AsRef<[T]>>(&self, key: K) -> bool;
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `wordfeud-solver` (lib) generated 7 warnings (run `cargo fix --lib -p wordfeud-solver` to apply 2 suggestions)
[INFO] [stderr] warning: `wordfeud-solver` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[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] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/wordfeud_solver-fcc0133e71aa3c79)
[INFO] [stdout] 
[INFO] [stdout] running 43 tests
[INFO] [stdout] test ai::tests::test_find_best_score ... ignored
[INFO] [stdout] test board::tests::test_calc_all_word_scores ... ok
[INFO] [stdout] test board::tests::test_sample_scores ... ignored
[INFO] [stdout] test ai::tests::test_random_sample ... ok
[INFO] [stdout] test board::tests::test_main ... ok
[INFO] [stdout] test board::tests::test_board ... ok
[INFO] [stdout] test board::tests::test_state ... ok
[INFO] [stdout] test board::tests::test_bingo ... ok
[INFO] [stdout] test ai::tests::test_tiles ... ok
[INFO] [stdout] test board::tests::test_words ... ok
[INFO] [stdout] test grid::tests::test_grid_from_array ... ok
[INFO] [stdout] test labelset::tests::test_labelset_iterator ... ok
[INFO] [stdout] test labelset::tests::test_index ... ok
[INFO] [stdout] test labelset::tests::test_into ... ok
[INFO] [stdout] test labelset::tests::test_labelset ... ok
[INFO] [stdout] test tiles::codec::tests::test_encode ... ok
[INFO] [stdout] test tiles::items::tests::test_iter ... ok
[INFO] [stdout] test labelset::tests::test_zero_highbits ... ok
[INFO] [stdout] test ai::tests::test_remaining_letters ... ok
[INFO] [stdout] test board::tests::test_surrounding_words ... ok
[INFO] [stdout] test labelset::tests::test_count_ones ... ok
[INFO] [stdout] test tiles::items::tests::test_word ... ok
[INFO] [stdout] test tilesets::tests::test_tileset ... ok
[INFO] [stdout] test wordlist::matches::test::test_get_legal_characters ... ok
[INFO] [stdout] test tiles::items::tests::test_letters ... ok
[INFO] [stdout] test tiles::cell::tests::test_to_letter ... ok
[INFO] [stdout] test tiles::items::tests::test_row ... ok
[INFO] [stdout] test tilebag::tests::test_bag ... ok
[INFO] [stdout] test tiles::codec::tests::test_tokenize ... ok
[INFO] [stdout] test wordlist::matches::test::test_matches_4 ... ok
[INFO] [stdout] test wordlist::matches::test::test_matches_2 ... ok
[INFO] [stdout] test board::tests::test_calc_word_points ... ok
[INFO] [stdout] test tilesets::tests::test_codec ... ok
[INFO] [stdout] test wordlist::matches::test::test_matches_3 ... ok
[INFO] [stdout] test wordlist::test::test_is_word ... ok
[INFO] [stdout] test wordlist::test::test_range ... ok
[INFO] [stdout] test wordlist::matches::test::test_matches_1 ... ok
[INFO] [stdout] test wordlist::test::test_terminal ... ok
[INFO] [stdout] test wordlist::matches::test::test_words ... ok
[INFO] [stdout] test wordlist::trievec::tests::test_trie_vec ... ok
[INFO] [stdout] test tiles::codec::tests::test_encode_error - should panic ... ok
[INFO] [stdout] test board::tests::test_tile_placement_error - should panic ... ok
[INFO] [stdout] test board::tests::test_tile_replace_error - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 41 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests wordfeud_solver
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test src/board.rs - board::Board<'a>::with_wordlist_from_words (line 143) - compile ... ok
[INFO] [stdout] test src/grid.rs - grid::Grid::from_strings (line 137) ... ok
[INFO] [stdout] test src/board.rs - board::Board<'a>::with_state_from_strings (line 200) ... ok
[INFO] [stdout] test src/tiles/codec.rs - tiles::codec::Codec::encode (line 99) ... ok
[INFO] [stdout] test src/board.rs - board::Board<'a>::calc_all_word_scores (line 550) ... ok
[INFO] [stdout] test src/tiles/codec.rs - tiles::codec::Codec::new (line 80) ... ok
[INFO] [stdout] test src/board.rs - board::Board<'a>::new (line 81) ... ok
[INFO] [stdout] test src/board.rs - board::Board<'a>::is_occupied (line 284) ... ok
[INFO] [stdout] test src/grid.rs - grid::Grid::default (line 110) ... ok
[INFO] [stdout] test src/board.rs - board::Board<'a>::words (line 522) ... ok
[INFO] [stdout] test src/tiles/tile.rs - tiles::tile::Tile::wildcard_from_letter (line 41) ... ok
[INFO] [stdout] test src/tiles/tile.rs - tiles::tile::Tile::label (line 57) ... ok
[INFO] [stdout] test src/board.rs - board::Board<'a>::calc_word_points (line 426) ... ok
[INFO] [stdout] test src/board.rs - board::Board<'a>::with_wordlist_from_file (line 129) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 19) ... ok
[INFO] [stdout] test src/tiles/codec.rs - tiles::codec::Codec::decode (line 127) ... ok
[INFO] [stdout] test src/board.rs - board::Board<'a>::play_word (line 337) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/board.rs - board::Board<'a>::with_wordlist_from_file (line 129) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at src/board.rs:8:38:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: ReadError { path: "../wordlists/words.txt", source: Os { code: 2, kind: NotFound, message: "No such file or directory" } }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x582b9a8a0cda - std::backtrace_rs::backtrace::libunwind::trace::h5a5b8284f2d0c266
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x582b9a8a0cda - std::backtrace_rs::backtrace::trace_unsynchronized::h76d4f1c9b0b875e3
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x582b9a8a0cda - std::sys::backtrace::_print_fmt::hc4546b8364a537c6
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x582b9a8a0cda - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h5b6bd5631a6d1f6b
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x582b9a8bd153 - core::fmt::rt::Argument::fmt::h270f6602a2b96f62
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x582b9a8bd153 - core::fmt::write::h7550c97b06c86515
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/mod.rs:1186:21
[INFO] [stdout]    6:     0x582b9a89e9d3 - std::io::Write::write_fmt::h7b09c64fe0be9c84
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/io/mod.rs:1839:15
[INFO] [stdout]    7:     0x582b9a8a0b22 - std::sys::backtrace::BacktraceLock::print::h2395ccd2c84ba3aa
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x582b9a8a1acc - std::panicking::default_hook::{{closure}}::he19d4c7230e07961
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x582b9a8a1912 - std::panicking::default_hook::hf614597d3c67bbdb
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:295:9
[INFO] [stdout]   10:     0x582b9a8a20a7 - std::panicking::rust_panic_with_hook::h8942133a8b252070
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:801:13
[INFO] [stdout]   11:     0x582b9a8a1f3a - std::panicking::begin_panic_handler::{{closure}}::hb5f5963570096b29
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:674:13
[INFO] [stdout]   12:     0x582b9a8a11b9 - std::sys::backtrace::__rust_end_short_backtrace::h6208cedc1922feda
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   13:     0x582b9a8a1bcc - rust_begin_unwind
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:665:5
[INFO] [stdout]   14:     0x582b9a8591a0 - core::panicking::panic_fmt::h0c3082644d1bf418
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:74:14
[INFO] [stdout]   15:     0x582b9a859516 - core::result::unwrap_failed::hd20b4aa073bda1e2
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/result.rs:1700:5
[INFO] [stdout]   16:     0x582b9a85a330 - rust_out::main::h86d391cc11b8a827
[INFO] [stdout]   17:     0x582b9a859b83 - core::ops::function::FnOnce::call_once::hd1e0b33d350e8c2e
[INFO] [stdout]   18:     0x582b9a859ad6 - std::sys::backtrace::__rust_begin_short_backtrace::hb7c4fd168269da08
[INFO] [stdout]   19:     0x582b9a859ab9 - std::rt::lang_start::{{closure}}::h7630186e3858a44d
[INFO] [stdout]   20:     0x582b9a89c6ee - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hfdb85f4ee94732d3
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:284:13
[INFO] [stdout]   21:     0x582b9a89c6ee - std::panicking::try::do_call::h6e577310f330cbef
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40
[INFO] [stdout]   22:     0x582b9a89c6ee - std::panicking::try::ha588d438267d2645
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19
[INFO] [stdout]   23:     0x582b9a89c6ee - std::panic::catch_unwind::h429fda1e025f26d9
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14
[INFO] [stdout]   24:     0x582b9a89c6ee - std::rt::lang_start_internal::{{closure}}::h7b731265e841c4bf
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:174:48
[INFO] [stdout]   25:     0x582b9a89c6ee - std::panicking::try::do_call::hc0f6a675b7ae5a36
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40
[INFO] [stdout]   26:     0x582b9a89c6ee - std::panicking::try::h4c93b7ff0671f1ff
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19
[INFO] [stdout]   27:     0x582b9a89c6ee - std::panic::catch_unwind::hcc1e154961d16ce6
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14
[INFO] [stdout]   28:     0x582b9a89c6ee - std::rt::lang_start_internal::h1c66660c99c8424c
[INFO] [stdout]                                at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/rt.rs:174:20
[INFO] [stdout]   29:     0x582b9a859a97 - std::rt::lang_start::hcdb31f4834f76b8c
[INFO] [stdout]   30:     0x582b9a85a4a5 - main
[INFO] [stdout]   31:     0x7a771d77ad90 - <unknown>
[INFO] [stdout]   32:     0x7a771d77ae40 - __libc_start_main
[INFO] [stdout]   33:     0x582b9a859955 - _start
[INFO] [stdout]   34:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/board.rs - board::Board<'a>::with_wordlist_from_file (line 129)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 16 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.42s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "953a9db2d630df7369a0dd14d13d62b9626901364ec282f212aa06989e9cc1d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "953a9db2d630df7369a0dd14d13d62b9626901364ec282f212aa06989e9cc1d3", kill_on_drop: false }`
[INFO] [stdout] 953a9db2d630df7369a0dd14d13d62b9626901364ec282f212aa06989e9cc1d3
