[INFO] cloning repository https://github.com/MichaelDuPlessis/ccc_2023
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MichaelDuPlessis/ccc_2023" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichaelDuPlessis%2Fccc_2023", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichaelDuPlessis%2Fccc_2023'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aae9cc9af25e049cafadd63a134cbe42dafc5267
[INFO] checking MichaelDuPlessis/ccc_2023 against try#ed606620234c6b50f2414162c4bbabd5f4a925f3 for pr-147995
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichaelDuPlessis%2Fccc_2023" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/MichaelDuPlessis/ccc_2023
[INFO] finished tweaking git repo https://github.com/MichaelDuPlessis/ccc_2023
[INFO] tweaked toml for git repo https://github.com/MichaelDuPlessis/ccc_2023 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MichaelDuPlessis/ccc_2023 on toolchain ed606620234c6b50f2414162c4bbabd5f4a925f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/MichaelDuPlessis/ccc_2023 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" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7f83f248f141dd402d75cc4d0c48d0b2acd474a54ba3890fe31fa02647a0626
[INFO] running `Command { std: "docker" "start" "-a" "a7f83f248f141dd402d75cc4d0c48d0b2acd474a54ba3890fe31fa02647a0626", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7f83f248f141dd402d75cc4d0c48d0b2acd474a54ba3890fe31fa02647a0626", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7f83f248f141dd402d75cc4d0c48d0b2acd474a54ba3890fe31fa02647a0626", kill_on_drop: false }`
[INFO] [stdout] a7f83f248f141dd402d75cc4d0c48d0b2acd474a54ba3890fe31fa02647a0626
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f434928784477372696ed65a2f41f527a9ac4467d63dec1db01d24de51e23e30
[INFO] running `Command { std: "docker" "start" "-a" "f434928784477372696ed65a2f41f527a9ac4467d63dec1db01d24de51e23e30", kill_on_drop: false }`
[INFO] [stderr]     Checking ccc_2023 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fight::Fight`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use fight::Fight;
[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 import: `rps::RPSMove`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rps::RPSMove;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tournament::Tournament`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tournament::Tournament;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fight::Fight`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use fight::Fight;
[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 import: `rps::RPSMove`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rps::RPSMove;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tournament::Tournament`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tournament::Tournament;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/rps.rs:62:34
[INFO] [stdout]    |
[INFO] [stdout] 62 |         if let MatchOutcome::Win(m) = competitors[i].outcome_of_match(&competitors[i + 1]) {
[INFO] [stdout]    |                                  ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]   --> src/rps.rs:62:34
[INFO] [stdout]    |
[INFO] [stdout] 62 |         if let MatchOutcome::Win(m) = competitors[i].outcome_of_match(&competitors[i + 1]) {
[INFO] [stdout]    |                                  ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_lines`
[INFO] [stdout]   --> src/main.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let num_lines = n_str.parse::<usize>().unwrap();
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_fighters`
[INFO] [stdout]   --> src/main.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let num_fighters = m_str.parse::<usize>().unwrap();
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_fighters`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_win` is never used
[INFO] [stdout]   --> src/main.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn get_win(style: char) -> char {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Fight` is never constructed
[INFO] [stdout]  --> src/fight.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Fight {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `fight`, and `fight_char` are never used
[INFO] [stdout]   --> src/fight.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Fight {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 11 |     pub fn new(f1: RPSMove, f2: RPSMove) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn fight(self) -> RPSMove {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn fight_char(&self) -> char {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RPSMove` is never constructed
[INFO] [stdout]  --> src/rps.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct RPSMove(char);
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MatchOutcome` is never used
[INFO] [stdout]  --> src/rps.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum MatchOutcome {
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_char` is never used
[INFO] [stdout]   --> src/rps.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl MatchOutcome {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] 24 |     pub fn get_char(&self) -> char {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `outcome_of_match`, and `get_char` are never used
[INFO] [stdout]   --> src/rps.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl RPSMove {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 34 |     pub fn new(rps_move: char) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn outcome_of_match(&self, other: &RPSMove) -> MatchOutcome {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     pub fn get_char(&self) -> char {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `outcome_of_tournament_round` is never used
[INFO] [stdout]   --> src/rps.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn outcome_of_tournament_round(competitors: Vec<RPSMove>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tournament` is never constructed
[INFO] [stdout]  --> src/tournament.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Tournament {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `torn`, and `next_round` are never used
[INFO] [stdout]   --> src/tournament.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Tournament {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 18 |     pub fn new(fights: Vec<Fight>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn torn(&mut self, num_rounds: usize) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn next_round(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_lines`
[INFO] [stdout]   --> src/main.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let num_lines = n_str.parse::<usize>().unwrap();
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_lines`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_fighters`
[INFO] [stdout]   --> src/main.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let num_fighters = m_str.parse::<usize>().unwrap();
[INFO] [stdout]    |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_fighters`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_win` is never used
[INFO] [stdout]   --> src/main.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn get_win(style: char) -> char {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Fight` is never constructed
[INFO] [stdout]  --> src/fight.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Fight {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `fight`, and `fight_char` are never used
[INFO] [stdout]   --> src/fight.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Fight {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 11 |     pub fn new(f1: RPSMove, f2: RPSMove) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pub fn fight(self) -> RPSMove {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn fight_char(&self) -> char {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RPSMove` is never constructed
[INFO] [stdout]  --> src/rps.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct RPSMove(char);
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MatchOutcome` is never used
[INFO] [stdout]  --> src/rps.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum MatchOutcome {
[INFO] [stdout]   |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_char` is never used
[INFO] [stdout]   --> src/rps.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl MatchOutcome {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] 24 |     pub fn get_char(&self) -> char {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `outcome_of_match`, and `get_char` are never used
[INFO] [stdout]   --> src/rps.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl RPSMove {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 34 |     pub fn new(rps_move: char) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     pub fn outcome_of_match(&self, other: &RPSMove) -> MatchOutcome {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 53 |     pub fn get_char(&self) -> char {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `outcome_of_tournament_round` is never used
[INFO] [stdout]   --> src/rps.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn outcome_of_tournament_round(competitors: Vec<RPSMove>) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tournament` is never constructed
[INFO] [stdout]  --> src/tournament.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Tournament {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `torn`, and `next_round` are never used
[INFO] [stdout]   --> src/tournament.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Tournament {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 18 |     pub fn new(fights: Vec<Fight>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn torn(&mut self, num_rounds: usize) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     fn next_round(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "f434928784477372696ed65a2f41f527a9ac4467d63dec1db01d24de51e23e30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f434928784477372696ed65a2f41f527a9ac4467d63dec1db01d24de51e23e30", kill_on_drop: false }`
[INFO] [stdout] f434928784477372696ed65a2f41f527a9ac4467d63dec1db01d24de51e23e30