[INFO] cloning repository https://github.com/h1g0/fictlang_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/h1g0/fictlang_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fh1g0%2Ffictlang_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fh1g0%2Ffictlang_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0e98caabcf9b4aa16891967b412c95a99a8e3692
[INFO] checking h1g0/fictlang_rs against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fh1g0%2Ffictlang_rs" "/workspace/builds/worker-104/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-104/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/h1g0/fictlang_rs on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/h1g0/fictlang_rs
[INFO] finished tweaking git repo https://github.com/h1g0/fictlang_rs
[INFO] tweaked toml for git repo https://github.com/h1g0/fictlang_rs written to /workspace/builds/worker-104/source/Cargo.toml
[INFO] crate git repo https://github.com/h1g0/fictlang_rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fc38fba64816dff73108cd6a93243ecbb87490a6bf279732e1e99317ea66e80
[INFO] running `Command { std: "docker" "start" "-a" "2fc38fba64816dff73108cd6a93243ecbb87490a6bf279732e1e99317ea66e80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fc38fba64816dff73108cd6a93243ecbb87490a6bf279732e1e99317ea66e80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fc38fba64816dff73108cd6a93243ecbb87490a6bf279732e1e99317ea66e80", kill_on_drop: false }`
[INFO] [stdout] 2fc38fba64816dff73108cd6a93243ecbb87490a6bf279732e1e99317ea66e80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5e7060a28e4e5757ca4408c9b0b11babb564c386fa643a4c397ddd69e159dce
[INFO] running `Command { std: "docker" "start" "-a" "e5e7060a28e4e5757ca4408c9b0b11babb564c386fa643a4c397ddd69e159dce", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking rand_distr v0.4.1
[INFO] [stderr]     Checking fictlang_generator_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `V`
[INFO] [stdout]  --> src/phoneme_set.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     V,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `VC`
[INFO] [stdout]  --> src/phoneme_set.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     VC,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CV`
[INFO] [stdout]  --> src/phoneme_set.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     CV,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CVC`
[INFO] [stdout]  --> src/phoneme_set.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     CVC,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pattern`
[INFO] [stdout]   --> src/phoneme_set.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub pattern: PhonologicalPattern,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `probability`
[INFO] [stdout]   --> src/phoneme_set.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub probability: f32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PhonemeSet`
[INFO] [stdout]   --> src/phoneme_set.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct PhonemeSet {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/phoneme_set.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn new() -> PhonemeSet {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_random`
[INFO] [stdout]   --> src/phoneme_set.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn get_random(&self) -> Phoneme {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Prefix`
[INFO] [stdout]  --> src/word_set.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Prefix {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/word_set.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub fn new(conjugation: Vec<String>) -> Prefix {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_random`
[INFO] [stdout]   --> src/word_set.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn get_random(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PrefixSet`
[INFO] [stdout]   --> src/word_set.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct PrefixSet {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/word_set.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn new(prefixes: Vec<Prefix>) -> PrefixSet {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Suffix`
[INFO] [stdout]   --> src/word_set.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Suffix {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/word_set.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn new(conjugation: Vec<String>) -> Suffix {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_random`
[INFO] [stdout]   --> src/word_set.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn get_random(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `SuffixSet`
[INFO] [stdout]   --> src/word_set.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct SuffixSet {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/word_set.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn new(suffixes: Vec<Suffix>) -> SuffixSet {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Word`
[INFO] [stdout]   --> src/word_set.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub struct Word {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/word_set.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn new(prefix_idx: Option<usize>, suffix_idx: Option<usize>, str: String) -> Word {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `WordSet`
[INFO] [stdout]   --> src/word_set.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub struct WordSet {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/word_set.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn new(words: Vec<Word>) -> WordSet {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `V`
[INFO] [stdout]  --> src/phoneme_set.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     V,
[INFO] [stdout]   |     ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `VC`
[INFO] [stdout]  --> src/phoneme_set.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     VC,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CV`
[INFO] [stdout]  --> src/phoneme_set.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     CV,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CVC`
[INFO] [stdout]  --> src/phoneme_set.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     CVC,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pattern`
[INFO] [stdout]   --> src/phoneme_set.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub pattern: PhonologicalPattern,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `probability`
[INFO] [stdout]   --> src/phoneme_set.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub probability: f32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PhonemeSet`
[INFO] [stdout]   --> src/phoneme_set.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | struct PhonemeSet {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/phoneme_set.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn new() -> PhonemeSet {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_random`
[INFO] [stdout]   --> src/phoneme_set.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn get_random(&self) -> Phoneme {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Prefix`
[INFO] [stdout]  --> src/word_set.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Prefix {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/word_set.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub fn new(conjugation: Vec<String>) -> Prefix {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_random`
[INFO] [stdout]   --> src/word_set.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn get_random(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PrefixSet`
[INFO] [stdout]   --> src/word_set.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct PrefixSet {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/word_set.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn new(prefixes: Vec<Prefix>) -> PrefixSet {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Suffix`
[INFO] [stdout]   --> src/word_set.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Suffix {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/word_set.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn new(conjugation: Vec<String>) -> Suffix {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_random`
[INFO] [stdout]   --> src/word_set.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn get_random(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `SuffixSet`
[INFO] [stdout]   --> src/word_set.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct SuffixSet {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/word_set.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn new(suffixes: Vec<Suffix>) -> SuffixSet {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Word`
[INFO] [stdout]   --> src/word_set.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub struct Word {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/word_set.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn new(prefix_idx: Option<usize>, suffix_idx: Option<usize>, str: String) -> Word {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `WordSet`
[INFO] [stdout]   --> src/word_set.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub struct WordSet {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/word_set.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn new(words: Vec<Word>) -> WordSet {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 23 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.37s
[INFO] running `Command { std: "docker" "inspect" "e5e7060a28e4e5757ca4408c9b0b11babb564c386fa643a4c397ddd69e159dce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5e7060a28e4e5757ca4408c9b0b11babb564c386fa643a4c397ddd69e159dce", kill_on_drop: false }`
[INFO] [stdout] e5e7060a28e4e5757ca4408c9b0b11babb564c386fa643a4c397ddd69e159dce