[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] d88f98b0810515da12d203a06079cc46af78c716
[INFO] checking h1g0/fictlang_rs against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fh1g0%2Ffictlang_rs" "/workspace/builds/worker-88/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-88/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/h1g0/fictlang_rs on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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-88/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fa0242cb529e8bac96f3a3bb37dab3f1633cb6f0d438f44a1fe67899b44cfd1
[INFO] running `Command { std: "docker" "start" "-a" "4fa0242cb529e8bac96f3a3bb37dab3f1633cb6f0d438f44a1fe67899b44cfd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fa0242cb529e8bac96f3a3bb37dab3f1633cb6f0d438f44a1fe67899b44cfd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fa0242cb529e8bac96f3a3bb37dab3f1633cb6f0d438f44a1fe67899b44cfd1", kill_on_drop: false }`
[INFO] [stdout] 4fa0242cb529e8bac96f3a3bb37dab3f1633cb6f0d438f44a1fe67899b44cfd1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5989f98266385ebbf1d99b25fc6bef61ac3685367b79254dc0e1e4c81cd24f8
[INFO] running `Command { std: "docker" "start" "-a" "c5989f98266385ebbf1d99b25fc6bef61ac3685367b79254dc0e1e4c81cd24f8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libm v0.2.1
[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: 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:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Prefix {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/word_set.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub fn new(conjugation: Vec<String>) -> Prefix {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PrefixSet`
[INFO] [stdout]  --> src/word_set.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct PrefixSet {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/word_set.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     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:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Suffix {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/word_set.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn new(conjugation: Vec<String>) -> Suffix {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `SuffixSet`
[INFO] [stdout]   --> src/word_set.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct SuffixSet {
[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(suffixes: Vec<Suffix>) -> SuffixSet {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Word`
[INFO] [stdout]   --> src/word_set.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct Word {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/word_set.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     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:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub struct WordSet {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/word_set.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn new(words: Vec<Word>) -> WordSet {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 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: 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:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Prefix {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/word_set.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub fn new(conjugation: Vec<String>) -> Prefix {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `PrefixSet`
[INFO] [stdout]  --> src/word_set.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct PrefixSet {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/word_set.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     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:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Suffix {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/word_set.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn new(conjugation: Vec<String>) -> Suffix {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `SuffixSet`
[INFO] [stdout]   --> src/word_set.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct SuffixSet {
[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(suffixes: Vec<Suffix>) -> SuffixSet {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Word`
[INFO] [stdout]   --> src/word_set.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct Word {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/word_set.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     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:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub struct WordSet {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/word_set.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn new(words: Vec<Word>) -> WordSet {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.18s
[INFO] running `Command { std: "docker" "inspect" "c5989f98266385ebbf1d99b25fc6bef61ac3685367b79254dc0e1e4c81cd24f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5989f98266385ebbf1d99b25fc6bef61ac3685367b79254dc0e1e4c81cd24f8", kill_on_drop: false }`
[INFO] [stdout] c5989f98266385ebbf1d99b25fc6bef61ac3685367b79254dc0e1e4c81cd24f8