[INFO] cloning repository https://github.com/Sam647254/Niverno
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Sam647254/Niverno" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSam647254%2FNiverno", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSam647254%2FNiverno'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 969285f519a92806f017e5bff636c8dff4ec2370
[INFO] testing Sam647254/Niverno against master#0d162b25edd5bf0dba9a22e83b614f1113e90474 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSam647254%2FNiverno" "/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/Sam647254/Niverno
[INFO] finished tweaking git repo https://github.com/Sam647254/Niverno
[INFO] tweaked toml for git repo https://github.com/Sam647254/Niverno written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Sam647254/Niverno on toolchain 0d162b25edd5bf0dba9a22e83b614f1113e90474
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Sam647254/Niverno 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" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 946b914c9a847b2b38101054198313295cf4b4bb37218893e8887c7662035bc5
[INFO] running `Command { std: "docker" "start" "-a" "946b914c9a847b2b38101054198313295cf4b4bb37218893e8887c7662035bc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "946b914c9a847b2b38101054198313295cf4b4bb37218893e8887c7662035bc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "946b914c9a847b2b38101054198313295cf4b4bb37218893e8887c7662035bc5", kill_on_drop: false }`
[INFO] [stdout] 946b914c9a847b2b38101054198313295cf4b4bb37218893e8887c7662035bc5
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3908452115ff775cfcfb2b671cda5d6bd70cd37e7532e98a72edff2577e8463
[INFO] running `Command { std: "docker" "start" "-a" "c3908452115ff775cfcfb2b671cda5d6bd70cd37e7532e98a72edff2577e8463", kill_on_drop: false }`
[INFO] [stderr]    Compiling niverno v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `prototype`
[INFO] [stdout]   --> src/grammar/morphology/mod.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn derivations_of(prototype: Prototype) -> HashSet<Derivation> {
[INFO] [stdout]    |                       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prototype`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prototype`
[INFO] [stdout]   --> src/grammar/morphology/mod.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn inflections_of(prototype: &Prototype) -> HashSet<Inflection> {
[INFO] [stdout]    |                       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prototype`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DerivedPrototype` is never constructed
[INFO] [stdout]  --> src/grammar/morphology/mod.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct DerivedPrototype {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `derivations_of` is never used
[INFO] [stdout]   --> src/grammar/morphology/mod.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn derivations_of(prototype: Prototype) -> HashSet<Derivation> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `inflections_of` is never used
[INFO] [stdout]   --> src/grammar/morphology/mod.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn inflections_of(prototype: &Prototype) -> HashSet<Inflection> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Derivation` is never used
[INFO] [stdout]  --> src/grammar/morphology/derivations.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Derivation {
[INFO] [stdout]   |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Inflection` is never used
[INFO] [stdout]  --> src/grammar/morphology/inflections.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Inflection {
[INFO] [stdout]   |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Prototype` is never used
[INFO] [stdout]  --> src/grammar/prototypes/mod.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum Prototype {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Enumerability` is never used
[INFO] [stdout]  --> src/grammar/prototypes/noun.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Enumerability {
[INFO] [stdout]   |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Flavour` is never used
[INFO] [stdout]  --> src/grammar/prototypes/noun.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub enum Flavour {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Associability` is never used
[INFO] [stdout]   --> src/grammar/prototypes/noun.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum Associability {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Noun` is never constructed
[INFO] [stdout]   --> src/grammar/prototypes/noun.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Noun {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Receiver` is never used
[INFO] [stdout]  --> src/grammar/prototypes/verb.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Receiver {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Valency` is never used
[INFO] [stdout]  --> src/grammar/prototypes/verb.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub enum Valency {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Verb` is never constructed
[INFO] [stdout]   --> src/grammar/prototypes/verb.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Verb {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "c3908452115ff775cfcfb2b671cda5d6bd70cd37e7532e98a72edff2577e8463", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3908452115ff775cfcfb2b671cda5d6bd70cd37e7532e98a72edff2577e8463", kill_on_drop: false }`
[INFO] [stdout] c3908452115ff775cfcfb2b671cda5d6bd70cd37e7532e98a72edff2577e8463
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c20c50b021fea4a94ee4d081dc0caeafc55121505620d2516131d6062875c4f7
[INFO] running `Command { std: "docker" "start" "-a" "c20c50b021fea4a94ee4d081dc0caeafc55121505620d2516131d6062875c4f7", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `prototype`
[INFO] [stdout]   --> src/grammar/morphology/mod.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn derivations_of(prototype: Prototype) -> HashSet<Derivation> {
[INFO] [stdout]    |                       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prototype`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prototype`
[INFO] [stdout]   --> src/grammar/morphology/mod.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn inflections_of(prototype: &Prototype) -> HashSet<Inflection> {
[INFO] [stdout]    |                       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prototype`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DerivedPrototype` is never constructed
[INFO] [stdout]  --> src/grammar/morphology/mod.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct DerivedPrototype {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `derivations_of` is never used
[INFO] [stdout]   --> src/grammar/morphology/mod.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn derivations_of(prototype: Prototype) -> HashSet<Derivation> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `inflections_of` is never used
[INFO] [stdout]   --> src/grammar/morphology/mod.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn inflections_of(prototype: &Prototype) -> HashSet<Inflection> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Derivation` is never used
[INFO] [stdout]  --> src/grammar/morphology/derivations.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Derivation {
[INFO] [stdout]   |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Inflection` is never used
[INFO] [stdout]  --> src/grammar/morphology/inflections.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Inflection {
[INFO] [stdout]   |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Prototype` is never used
[INFO] [stdout]  --> src/grammar/prototypes/mod.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum Prototype {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Enumerability` is never used
[INFO] [stdout]  --> src/grammar/prototypes/noun.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Enumerability {
[INFO] [stdout]   |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Flavour` is never used
[INFO] [stdout]  --> src/grammar/prototypes/noun.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub enum Flavour {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Associability` is never used
[INFO] [stdout]   --> src/grammar/prototypes/noun.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum Associability {
[INFO] [stdout]    |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Noun` is never constructed
[INFO] [stdout]   --> src/grammar/prototypes/noun.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Noun {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Receiver` is never used
[INFO] [stdout]  --> src/grammar/prototypes/verb.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Receiver {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling niverno v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `Valency` is never used
[INFO] [stdout]  --> src/grammar/prototypes/verb.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub enum Valency {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Verb` is never constructed
[INFO] [stdout]   --> src/grammar/prototypes/verb.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Verb {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::FromIterator`
[INFO] [stdout]   --> src/grammar/morphology/mod.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 |    use std::iter::FromIterator;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prototype`
[INFO] [stdout]   --> src/grammar/morphology/mod.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn derivations_of(prototype: Prototype) -> HashSet<Derivation> {
[INFO] [stdout]    |                       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prototype`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prototype`
[INFO] [stdout]   --> src/grammar/morphology/mod.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn inflections_of(prototype: &Prototype) -> HashSet<Inflection> {
[INFO] [stdout]    |                       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prototype`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DerivedPrototype` is never constructed
[INFO] [stdout]  --> src/grammar/morphology/mod.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct DerivedPrototype {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `derivations_of` is never used
[INFO] [stdout]   --> src/grammar/morphology/mod.rs:14:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn derivations_of(prototype: Prototype) -> HashSet<Derivation> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Derivation` is never used
[INFO] [stdout]  --> src/grammar/morphology/derivations.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Derivation {
[INFO] [stdout]   |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/grammar/morphology/inflections.rs:8:4
[INFO] [stdout]    |
[INFO] [stdout]  2 | pub enum Inflection {
[INFO] [stdout]    |          ---------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout]  8 |    Detached,
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]  9 |    StartImperative,
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 10 |    StopImperative,
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 11 |    Started,
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 12 |    Finished,
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 13 |    NotStarted,
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 14 |    Paused,
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 15 |    Stopped,
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 16 |    Cancelled,
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 17 |    Right,
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 18 |    Left,
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Inflection` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/grammar/prototypes/mod.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |    Noun(Noun),
[INFO] [stdout]   |    ---- ^^^^
[INFO] [stdout]   |    |
[INFO] [stdout]   |    field in this variant
[INFO] [stdout]   |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 -    Noun(Noun),
[INFO] [stdout] 8 +    Noun(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Verb` is never constructed
[INFO] [stdout]  --> src/grammar/prototypes/mod.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum Prototype {
[INFO] [stdout]   |          --------- variant in this enum
[INFO] [stdout] 8 |    Noun(Noun),
[INFO] [stdout] 9 |    Verb(Verb),
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Singleton` and `Mass` are never constructed
[INFO] [stdout]  --> src/grammar/prototypes/noun.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Enumerability {
[INFO] [stdout]   |          ------------- variants in this enum
[INFO] [stdout] 4 |    Countable,
[INFO] [stdout] 5 |    Singleton,
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 6 |    Mass,
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Mid` is never constructed
[INFO] [stdout]   --> src/grammar/prototypes/noun.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub enum Flavour {
[INFO] [stdout]    |          ------- variant in this enum
[INFO] [stdout] 10 |    Open,
[INFO] [stdout] 11 |    Mid,
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Common` and `Intrinsic` are never constructed
[INFO] [stdout]   --> src/grammar/prototypes/noun.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum Associability {
[INFO] [stdout]    |          ------------- variants in this enum
[INFO] [stdout] 15 |    Common,
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 16 |    Associable,
[INFO] [stdout] 17 |    Intrinsic,
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/grammar/prototypes/noun.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Noun {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 21 |    pub enumerability: Enumerability,
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 22 |    pub associability: Associability,
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 23 |    pub flavour: Flavour,
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 24 |    pub stem: &'static str,
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 25 |    pub gloss_term: &'static str,
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 26 |    pub meaning: &'static str,
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 27 |    pub root_stems: HashSet<&'static str>,
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Single`, `Multiple`, and `Global` are never constructed
[INFO] [stdout]  --> src/grammar/prototypes/verb.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Receiver {
[INFO] [stdout]   |          -------- variants in this enum
[INFO] [stdout] 4 |    Single,
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 5 |    Multiple,
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 6 |    Global,
[INFO] [stdout]   |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Zero`, `One`, and `Two` are never constructed
[INFO] [stdout]   --> src/grammar/prototypes/verb.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub enum Valency {
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] 10 |    Zero,
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 11 |    One,
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 12 |    Two,
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/grammar/prototypes/verb.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Verb {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 16 |    pub receiver: Receiver,
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 17 |    pub valency: Valency,
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 18 |    pub instantaneous: bool,
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 19 |    pub integral: bool,
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 20 |    pub creation: bool,
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 21 |    pub stem: &'static str,
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 22 |    pub meaning: &'static str,
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 23 |    pub root_stems: HashSet<&'static str>,
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 24 |    pub argument_meanings: &'static [&'static str],
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "c20c50b021fea4a94ee4d081dc0caeafc55121505620d2516131d6062875c4f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c20c50b021fea4a94ee4d081dc0caeafc55121505620d2516131d6062875c4f7", kill_on_drop: false }`
[INFO] [stdout] c20c50b021fea4a94ee4d081dc0caeafc55121505620d2516131d6062875c4f7
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a1df08ca16b39b271d63962c087e1cc17da03183556af3368300d27c91d9b8a5
[INFO] running `Command { std: "docker" "start" "-a" "a1df08ca16b39b271d63962c087e1cc17da03183556af3368300d27c91d9b8a5", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `prototype`
[INFO] [stderr]   --> src/grammar/morphology/mod.rs:14:23
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn derivations_of(prototype: Prototype) -> HashSet<Derivation> {
[INFO] [stderr]    |                       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prototype`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `prototype`
[INFO] [stderr]   --> src/grammar/morphology/mod.rs:18:23
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn inflections_of(prototype: &Prototype) -> HashSet<Inflection> {
[INFO] [stderr]    |                       ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prototype`
[INFO] [stderr] 
[INFO] [stderr] warning: struct `DerivedPrototype` is never constructed
[INFO] [stderr]  --> src/grammar/morphology/mod.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct DerivedPrototype {
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `derivations_of` is never used
[INFO] [stderr]   --> src/grammar/morphology/mod.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn derivations_of(prototype: Prototype) -> HashSet<Derivation> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `inflections_of` is never used
[INFO] [stderr]   --> src/grammar/morphology/mod.rs:18:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub fn inflections_of(prototype: &Prototype) -> HashSet<Inflection> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Derivation` is never used
[INFO] [stderr]  --> src/grammar/morphology/derivations.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub enum Derivation {
[INFO] [stderr]   |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Inflection` is never used
[INFO] [stderr]  --> src/grammar/morphology/inflections.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub enum Inflection {
[INFO] [stderr]   |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Prototype` is never used
[INFO] [stderr]  --> src/grammar/prototypes/mod.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub enum Prototype {
[INFO] [stderr]   |          ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Enumerability` is never used
[INFO] [stderr]  --> src/grammar/prototypes/noun.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum Enumerability {
[INFO] [stderr]   |          ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Flavour` is never used
[INFO] [stderr]  --> src/grammar/prototypes/noun.rs:9:10
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub enum Flavour {
[INFO] [stderr]   |          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Associability` is never used
[INFO] [stderr]   --> src/grammar/prototypes/noun.rs:14:10
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub enum Associability {
[INFO] [stderr]    |          ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Noun` is never constructed
[INFO] [stderr]   --> src/grammar/prototypes/noun.rs:20:12
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub struct Noun {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Receiver` is never used
[INFO] [stderr]  --> src/grammar/prototypes/verb.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum Receiver {
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Valency` is never used
[INFO] [stderr]  --> src/grammar/prototypes/verb.rs:9:10
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub enum Valency {
[INFO] [stderr]   |          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Verb` is never constructed
[INFO] [stderr]   --> src/grammar/prototypes/verb.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub struct Verb {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `niverno` (lib) generated 15 warnings (run `cargo fix --lib -p niverno` to apply 2 suggestions)
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]   --> src/grammar/morphology/mod.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 |    use std::iter::FromIterator;
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: multiple variants are never constructed
[INFO] [stderr]   --> src/grammar/morphology/inflections.rs:8:4
[INFO] [stderr]    |
[INFO] [stderr]  2 | pub enum Inflection {
[INFO] [stderr]    |          ---------- variants in this enum
[INFO] [stderr] ...
[INFO] [stderr]  8 |    Detached,
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr]  9 |    StartImperative,
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 10 |    StopImperative,
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 11 |    Started,
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 12 |    Finished,
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 13 |    NotStarted,
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 14 |    Paused,
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 15 |    Stopped,
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 16 |    Cancelled,
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 17 |    Right,
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 18 |    Left,
[INFO] [stderr]    |    ^^^^
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr]    = note: `Inflection` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] running 1 test
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]  --> src/grammar/prototypes/mod.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |    Noun(Noun),
[INFO] [stderr]   |    ---- ^^^^
[INFO] [stderr]   |    |
[INFO] [stderr]   |    field in this variant
[INFO] [stderr]   |
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]   |
[INFO] [stderr] 8 -    Noun(Noun),
[INFO] [stderr] 8 +    Noun(()),
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Verb` is never constructed
[INFO] [stderr]  --> src/grammar/prototypes/mod.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub enum Prototype {
[INFO] [stderr]   |          --------- variant in this enum
[INFO] [stderr] 8 |    Noun(Noun),
[INFO] [stderr] 9 |    Verb(Verb),
[INFO] [stderr]   |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Singleton` and `Mass` are never constructed
[INFO] [stderr]  --> src/grammar/prototypes/noun.rs:5:4
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum Enumerability {
[INFO] [stderr]   |          ------------- variants in this enum
[INFO] [stderr] 4 |    Countable,
[INFO] [stderr] 5 |    Singleton,
[INFO] [stderr]   |    ^^^^^^^^^
[INFO] [stderr] 6 |    Mass,
[INFO] [stderr]   |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Mid` is never constructed
[INFO] [stderr]   --> src/grammar/prototypes/noun.rs:11:4
[INFO] [stderr]    |
[INFO] [stderr]  9 | pub enum Flavour {
[INFO] [stderr]    |          ------- variant in this enum
[INFO] [stderr] 10 |    Open,
[INFO] [stderr] 11 |    Mid,
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Common` and `Intrinsic` are never constructed
[INFO] [stderr]   --> src/grammar/prototypes/noun.rs:15:4
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub enum Associability {
[INFO] [stderr]    |          ------------- variants in this enum
[INFO] [stderr] 15 |    Common,
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 16 |    Associable,
[INFO] [stderr] 17 |    Intrinsic,
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple fields are never read
[INFO] [stderr]   --> src/grammar/prototypes/noun.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub struct Noun {
[INFO] [stderr]    |            ---- fields in this struct
[INFO] [stderr] 21 |    pub enumerability: Enumerability,
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 22 |    pub associability: Associability,
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 23 |    pub flavour: Flavour,
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 24 |    pub stem: &'static str,
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 25 |    pub gloss_term: &'static str,
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 26 |    pub meaning: &'static str,
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 27 |    pub root_stems: HashSet<&'static str>,
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Single`, `Multiple`, and `Global` are never constructed
[INFO] [stderr]  --> src/grammar/prototypes/verb.rs:4:4
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum Receiver {
[INFO] [stderr]   |          -------- variants in this enum
[INFO] [stderr] 4 |    Single,
[INFO] [stderr]   |    ^^^^^^
[INFO] [stderr] 5 |    Multiple,
[INFO] [stderr]   |    ^^^^^^^^
[INFO] [stderr] 6 |    Global,
[INFO] [stderr]   |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Zero`, `One`, and `Two` are never constructed
[INFO] [stderr]   --> src/grammar/prototypes/verb.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr]  9 | pub enum Valency {
[INFO] [stderr]    |          ------- variants in this enum
[INFO] [stderr] 10 |    Zero,
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 11 |    One,
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 12 |    Two,
[INFO] [stderr]    |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: multiple fields are never read
[INFO] [stderr]   --> src/grammar/prototypes/verb.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub struct Verb {
[INFO] [stderr]    |            ---- fields in this struct
[INFO] [stderr] 16 |    pub receiver: Receiver,
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 17 |    pub valency: Valency,
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 18 |    pub instantaneous: bool,
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 19 |    pub integral: bool,
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 20 |    pub creation: bool,
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 21 |    pub stem: &'static str,
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 22 |    pub meaning: &'static str,
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 23 |    pub root_stems: HashSet<&'static str>,
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 24 |    pub argument_meanings: &'static [&'static str],
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `niverno` (lib test) generated 16 warnings (5 duplicates) (run `cargo fix --lib -p niverno --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/niverno-509472ba7213ddb0)
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout] test grammar::morphology::tests::apple_inflections ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- grammar::morphology::tests::apple_inflections stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'grammar::morphology::tests::apple_inflections' (24) panicked at src/grammar/morphology/mod.rs:38:7:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: {Anaphor, Archetype, Associated, Specific, Nonspecific}
[INFO] [stdout]  right: {}
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x59d79d57da82 - std[3b51380354919863]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x59d79d57da82 - std[3b51380354919863]::backtrace_rs::backtrace::trace_unsynchronized::<std[3b51380354919863]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x59d79d57da82 - std[3b51380354919863]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x59d79d57da82 - <<std[3b51380354919863]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[27de1724e4349be2]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x59d79d59233a - <core[27de1724e4349be2]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x59d79d59233a - core[27de1724e4349be2]::fmt::write
[INFO] [stdout]    6:     0x59d79d582886 - std[3b51380354919863]::io::default_write_fmt::<alloc[a57f19327c0ad893]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x59d79d582886 - <alloc[a57f19327c0ad893]::vec::Vec<u8> as std[3b51380354919863]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x59d79d55c21f - <std[3b51380354919863]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x59d79d55c21f - std[3b51380354919863]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x59d79d575d69 - std[3b51380354919863]::panicking::default_hook
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x59d79d5117ee - <alloc[a57f19327c0ad893]::boxed::Box<dyn for<'a, 'b> core[27de1724e4349be2]::ops::function::Fn<(&'a std[3b51380354919863]::panic::PanicHookInfo<'b>,), Output = ()> + core[27de1724e4349be2]::marker::Sync + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::Fn<(&std[3b51380354919863]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x59d79d5117ee - test[182b2e79ecd7bbd9]::test_main_with_exit_callback::<test[182b2e79ecd7bbd9]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x59d79d575f22 - <alloc[a57f19327c0ad893]::boxed::Box<dyn for<'a, 'b> core[27de1724e4349be2]::ops::function::Fn<(&'a std[3b51380354919863]::panic::PanicHookInfo<'b>,), Output = ()> + core[27de1724e4349be2]::marker::Sync + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::Fn<(&std[3b51380354919863]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x59d79d575f22 - std[3b51380354919863]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x59d79d55c2d8 - std[3b51380354919863]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x59d79d551559 - std[3b51380354919863]::sys::backtrace::__rust_end_short_backtrace::<std[3b51380354919863]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x59d79d55d12d - __rustc[d79c0ace40940972]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x59d79d592a0c - core[27de1724e4349be2]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x59d79d5928c3 - core[27de1724e4349be2]::panicking::assert_failed_inner
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panicking.rs:439:17
[INFO] [stdout]   20:     0x59d79d4fd9ed - core[27de1724e4349be2]::panicking::assert_failed::<std[3b51380354919863]::collections::hash::set::HashSet<niverno[87c2f76ee9541f1b]::grammar::morphology::inflections::Inflection>, std[3b51380354919863]::collections::hash::set::HashSet<niverno[87c2f76ee9541f1b]::grammar::morphology::inflections::Inflection>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panicking.rs:394:5
[INFO] [stdout]   21:     0x59d79d4ffb06 - niverno[87c2f76ee9541f1b]::grammar::morphology::tests::apple_inflections
[INFO] [stdout]                                at /opt/rustwide/workdir/src/grammar/morphology/mod.rs:38:7
[INFO] [stdout]   22:     0x59d79d4fe637 - niverno[87c2f76ee9541f1b]::grammar::morphology::tests::apple_inflections::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/grammar/morphology/mod.rs:30:26
[INFO] [stdout]   23:     0x59d79d501f36 - <niverno[87c2f76ee9541f1b]::grammar::morphology::tests::apple_inflections::{closure#0} as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x59d79d505b9b - <fn() -> core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x59d79d505b9b - test[182b2e79ecd7bbd9]::__rust_begin_short_backtrace::<core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>, fn() -> core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x59d79d5123fa - test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x59d79d5123fa - <core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x59d79d5123fa - std[3b51380354919863]::panicking::catch_unwind::do_call::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>, core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x59d79d5123fa - std[3b51380354919863]::panicking::catch_unwind::<core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>, core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x59d79d5123fa - std[3b51380354919863]::panic::catch_unwind::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0}>, core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x59d79d5123fa - test[182b2e79ecd7bbd9]::run_test_in_process
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x59d79d5123fa - test[182b2e79ecd7bbd9]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x59d79d50d9a4 - test[182b2e79ecd7bbd9]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x59d79d50d9a4 - std[3b51380354919863]::sys::backtrace::__rust_begin_short_backtrace::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x59d79d514ef2 - std[3b51380354919863]::thread::lifecycle::spawn_unchecked::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   36:     0x59d79d514ef2 - <core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x59d79d514ef2 - std[3b51380354919863]::panicking::catch_unwind::do_call::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x59d79d514ef2 - std[3b51380354919863]::panicking::catch_unwind::<(), core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x59d79d514ef2 - std[3b51380354919863]::panic::catch_unwind::<core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe<std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x59d79d514ef2 - std[3b51380354919863]::thread::lifecycle::spawn_unchecked::<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   41:     0x59d79d514ef2 - <std[3b51380354919863]::thread::lifecycle::spawn_unchecked<test[182b2e79ecd7bbd9]::run_test::{closure#1}, ()>::{closure#1} as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x59d79d57d32f - <alloc[a57f19327c0ad893]::boxed::Box<dyn core[27de1724e4349be2]::ops::function::FnOnce<(), Output = ()> + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   43:     0x59d79d57d32f - <std[3b51380354919863]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stdout]   44:     0x719aea344aa4 - <unknown>
[INFO] [stdout]   45:     0x719aea3d1a64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     grammar::morphology::tests::apple_inflections
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a1df08ca16b39b271d63962c087e1cc17da03183556af3368300d27c91d9b8a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1df08ca16b39b271d63962c087e1cc17da03183556af3368300d27c91d9b8a5", kill_on_drop: false }`
[INFO] [stdout] a1df08ca16b39b271d63962c087e1cc17da03183556af3368300d27c91d9b8a5
