[INFO] updating cached repository isalevine/rust-cli-practice
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/isalevine/rust-cli-practice
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/isalevine/rust-cli-practice" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/isalevine/rust-cli-practice"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/isalevine/rust-cli-practice'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/isalevine/rust-cli-practice" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/isalevine/rust-cli-practice"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/isalevine/rust-cli-practice'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5defe5cc90be02f4d070672040ef806b3003c071
[INFO] sha for GitHub repo isalevine/rust-cli-practice: 5defe5cc90be02f4d070672040ef806b3003c071
[INFO] validating manifest of isalevine/rust-cli-practice on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of isalevine/rust-cli-practice on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing isalevine/rust-cli-practice
[INFO] finished frobbing isalevine/rust-cli-practice
[INFO] frobbed toml for isalevine/rust-cli-practice written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/isalevine/rust-cli-practice/Cargo.toml
[INFO] started frobbing isalevine/rust-cli-practice
[INFO] finished frobbing isalevine/rust-cli-practice
[INFO] frobbed toml for isalevine/rust-cli-practice written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/isalevine/rust-cli-practice/Cargo.toml
[INFO] crate isalevine/rust-cli-practice already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking isalevine/rust-cli-practice against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/isalevine/rust-cli-practice:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 06623e7a48f18970f68635f2864c4a3e5dbe5e657c0d37e1cbd22f12c0ebeb3c
[INFO] running `"docker" "start" "-a" "06623e7a48f18970f68635f2864c4a3e5dbe5e657c0d37e1cbd22f12c0ebeb3c"`
[INFO] [stderr]     Checking rust-cli-practice v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `retreat`
[INFO] [stderr]    --> src/main.rs:148:13
[INFO] [stderr]     |
[INFO] [stderr] 148 |         let retreat = (player.evade * 2) - enemy.evade;
[INFO] [stderr]     |             ^^^^^^^ help: consider prefixing with an underscore: `_retreat`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `player`
[INFO] [stderr]    --> src/main.rs:182:20
[INFO] [stderr]     |
[INFO] [stderr] 182 | pub fn roll_attack(player: &Character, enemy: &Character) -> u32 {
[INFO] [stderr]     |                    ^^^^^^ help: consider prefixing with an underscore: `_player`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `enemy`
[INFO] [stderr]    --> src/main.rs:182:40
[INFO] [stderr]     |
[INFO] [stderr] 182 | pub fn roll_attack(player: &Character, enemy: &Character) -> u32 {
[INFO] [stderr]     |                                        ^^^^^ help: consider prefixing with an underscore: `_enemy`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut knight = Character {
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let mut lizardman = Character {
[INFO] [stderr]    |         ----^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/main.rs:85:1
[INFO] [stderr]     |
[INFO] [stderr] 85  | pub fn main_turn_loop(mut player: Character, mut enemy: Character) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] ...
[INFO] [stderr] 104 |     main_turn_loop(tuple.0, tuple.1);
[INFO] [stderr]     |     -------------------------------- recursive call site
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:85:23
[INFO] [stderr]    |
[INFO] [stderr] 85 | pub fn main_turn_loop(mut player: Character, mut enemy: Character) {
[INFO] [stderr]    |                       ----^^^^^^
[INFO] [stderr]    |                       |
[INFO] [stderr]    |                       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:85:46
[INFO] [stderr]    |
[INFO] [stderr] 85 | pub fn main_turn_loop(mut player: Character, mut enemy: Character) {
[INFO] [stderr]    |                                              ----^^^^^
[INFO] [stderr]    |                                              |
[INFO] [stderr]    |                                              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print_character_attack`
[INFO] [stderr]   --> src/main.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     fn print_character_attack(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `retreat`
[INFO] [stderr]    --> src/main.rs:148:13
[INFO] [stderr]     |
[INFO] [stderr] 148 |         let retreat = (player.evade * 2) - enemy.evade;
[INFO] [stderr]     |             ^^^^^^^ help: consider prefixing with an underscore: `_retreat`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `player`
[INFO] [stderr]    --> src/main.rs:182:20
[INFO] [stderr]     |
[INFO] [stderr] 182 | pub fn roll_attack(player: &Character, enemy: &Character) -> u32 {
[INFO] [stderr]     |                    ^^^^^^ help: consider prefixing with an underscore: `_player`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `enemy`
[INFO] [stderr]    --> src/main.rs:182:40
[INFO] [stderr]     |
[INFO] [stderr] 182 | pub fn roll_attack(player: &Character, enemy: &Character) -> u32 {
[INFO] [stderr]     |                                        ^^^^^ help: consider prefixing with an underscore: `_enemy`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut knight = Character {
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let mut lizardman = Character {
[INFO] [stderr]    |         ----^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/main.rs:85:1
[INFO] [stderr]     |
[INFO] [stderr] 85  | pub fn main_turn_loop(mut player: Character, mut enemy: Character) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] ...
[INFO] [stderr] 104 |     main_turn_loop(tuple.0, tuple.1);
[INFO] [stderr]     |     -------------------------------- recursive call site
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:85:23
[INFO] [stderr]    |
[INFO] [stderr] 85 | pub fn main_turn_loop(mut player: Character, mut enemy: Character) {
[INFO] [stderr]    |                       ----^^^^^^
[INFO] [stderr]    |                       |
[INFO] [stderr]    |                       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:85:46
[INFO] [stderr]    |
[INFO] [stderr] 85 | pub fn main_turn_loop(mut player: Character, mut enemy: Character) {
[INFO] [stderr]    |                                              ----^^^^^
[INFO] [stderr]    |                                              |
[INFO] [stderr]    |                                              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print_character_attack`
[INFO] [stderr]   --> src/main.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     fn print_character_attack(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "06623e7a48f18970f68635f2864c4a3e5dbe5e657c0d37e1cbd22f12c0ebeb3c"`
[INFO] running `"docker" "rm" "-f" "06623e7a48f18970f68635f2864c4a3e5dbe5e657c0d37e1cbd22f12c0ebeb3c"`
[INFO] [stdout] 06623e7a48f18970f68635f2864c4a3e5dbe5e657c0d37e1cbd22f12c0ebeb3c