[INFO] updating cached repository https://github.com/alcesleo/yahtzee [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 3f0d053ddac6857e7227526c3df918bc58e7a101 [INFO] testing alcesleo/yahtzee against 1.38.0 for beta-1.39-1 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Falcesleo%2Fyahtzee" "work/builds/worker-0/source"` [INFO] [stderr] Cloning into 'work/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/alcesleo/yahtzee on toolchain 1.38.0 [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/alcesleo/yahtzee [INFO] finished tweaking git repo https://github.com/alcesleo/yahtzee [INFO] tweaked toml for git repo https://github.com/alcesleo/yahtzee written to work/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/alcesleo/yahtzee already has a lockfile, it will not be regenerated [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"` [INFO] [stdout] f7a3e8fe52d65c02cff89c148838420d617d44c3a6dce800a3133bc2d7990ba5 [INFO] running `"docker" "start" "-a" "f7a3e8fe52d65c02cff89c148838420d617d44c3a6dce800a3133bc2d7990ba5"` [INFO] [stderr] Compiling libc v0.2.60 [INFO] [stderr] Compiling cfg-if v0.1.9 [INFO] [stderr] Compiling lazy_static v1.3.0 [INFO] [stderr] Compiling c2-chacha v0.2.2 [INFO] [stderr] Compiling getrandom v0.1.7 [INFO] [stderr] Compiling rand_core v0.5.0 [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling rand v0.7.0 [INFO] [stderr] Compiling yahtzee v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:96:38 [INFO] [stderr] | [INFO] [stderr] 96 | fn take_turn(&mut self, player: &Player, score_card: &ScoreCard) { [INFO] [stderr] | ^^^^^^ help: use `dyn`: `dyn Player` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `round` [INFO] [stderr] --> src/main.rs:87:13 [INFO] [stderr] | [INFO] [stderr] 87 | for round in 0..ROUNDS { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_round` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `roll` [INFO] [stderr] --> src/main.rs:125:28 [INFO] [stderr] | [INFO] [stderr] 125 | fn discard_once(&self, roll: &Roll, score_card: &ScoreCard) -> DiscardedDice { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_roll` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `score_card` [INFO] [stderr] --> src/main.rs:125:41 [INFO] [stderr] | [INFO] [stderr] 125 | fn discard_once(&self, roll: &Roll, score_card: &ScoreCard) -> DiscardedDice { [INFO] [stderr] | ^^^^^^^^^^ help: consider prefixing with an underscore: `_score_card` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `roll` [INFO] [stderr] --> src/main.rs:132:29 [INFO] [stderr] | [INFO] [stderr] 132 | fn discard_twice(&self, roll: &Roll, score_card: &ScoreCard) -> DiscardedDice { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_roll` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `score_card` [INFO] [stderr] --> src/main.rs:132:42 [INFO] [stderr] | [INFO] [stderr] 132 | fn discard_twice(&self, roll: &Roll, score_card: &ScoreCard) -> DiscardedDice { [INFO] [stderr] | ^^^^^^^^^^ help: consider prefixing with an underscore: `_score_card` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `roll` [INFO] [stderr] --> src/main.rs:136:31 [INFO] [stderr] | [INFO] [stderr] 136 | fn choose_category(&self, roll: &Roll, score_card: &ScoreCard) -> Category { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_roll` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `score_card` [INFO] [stderr] --> src/main.rs:136:44 [INFO] [stderr] | [INFO] [stderr] 136 | fn choose_category(&self, roll: &Roll, score_card: &ScoreCard) -> Category { [INFO] [stderr] | ^^^^^^^^^^ help: consider prefixing with an underscore: `_score_card` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `score_card` [INFO] [stderr] --> src/main.rs:263:22 [INFO] [stderr] | [INFO] [stderr] 263 | for (player, score_card) in &self.players { [INFO] [stderr] | ^^^^^^^^^^ help: consider prefixing with an underscore: `_score_card` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `player` [INFO] [stderr] --> src/main.rs:271:18 [INFO] [stderr] | [INFO] [stderr] 271 | for (player, score_card) in &self.players { [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_player` [INFO] [stderr] [INFO] [stderr] error[E0499]: cannot borrow `*self` as mutable more than once at a time [INFO] [stderr] --> src/main.rs:91:17 [INFO] [stderr] | [INFO] [stderr] 88 | for (player, score_card) in self.players.iter_mut() { [INFO] [stderr] | ----------------------- [INFO] [stderr] | | [INFO] [stderr] | first mutable borrow occurs here [INFO] [stderr] | first borrow later used here [INFO] [stderr] ... [INFO] [stderr] 91 | self.take_turn(player, &mut score_card); [INFO] [stderr] | ^^^^ second mutable borrow occurs here [INFO] [stderr] [INFO] [stderr] error[E0596]: cannot borrow `score_card` as mutable, as it is not declared as mutable [INFO] [stderr] --> src/main.rs:91:40 [INFO] [stderr] | [INFO] [stderr] 91 | self.take_turn(player, &mut score_card); [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | cannot borrow as mutable [INFO] [stderr] | try removing `&mut` here [INFO] [stderr] [INFO] [stderr] error[E0596]: cannot borrow `*score_card` as mutable, as it is behind a `&` reference [INFO] [stderr] --> src/main.rs:110:9 [INFO] [stderr] | [INFO] [stderr] 96 | fn take_turn(&mut self, player: &Player, score_card: &ScoreCard) { [INFO] [stderr] | ---------- help: consider changing this to be a mutable reference: `&mut ScoreCard` [INFO] [stderr] ... [INFO] [stderr] 110 | score_card.fill(category, &roll); [INFO] [stderr] | ^^^^^^^^^^ `score_card` is a `&` reference, so the data it refers to cannot be borrowed as mutable [INFO] [stderr] [INFO] [stderr] error: aborting due to 3 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0499, E0596. [INFO] [stderr] For more information about an error, try `rustc --explain E0499`. [INFO] [stderr] error: Could not compile `yahtzee`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "f7a3e8fe52d65c02cff89c148838420d617d44c3a6dce800a3133bc2d7990ba5"` [INFO] running `"docker" "rm" "-f" "f7a3e8fe52d65c02cff89c148838420d617d44c3a6dce800a3133bc2d7990ba5"` [INFO] [stdout] f7a3e8fe52d65c02cff89c148838420d617d44c3a6dce800a3133bc2d7990ba5