[INFO] fetching crate xu 0.2.3... [INFO] testing xu-0.2.3 against master#0e21a27075a8c508f00d1a4430497f17ce93d5c9 for pr-98839 [INFO] extracting crate xu 0.2.3 into /workspace/builds/worker-0/source [INFO] validating manifest of crates.io crate xu 0.2.3 on toolchain 0e21a27075a8c508f00d1a4430497f17ce93d5c9 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0e21a27075a8c508f00d1a4430497f17ce93d5c9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate xu 0.2.3 [INFO] finished tweaking crates.io crate xu 0.2.3 [INFO] tweaked toml for crates.io crate xu 0.2.3 written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate crates.io crate xu 0.2.3 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0e21a27075a8c508f00d1a4430497f17ce93d5c9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+0e21a27075a8c508f00d1a4430497f17ce93d5c9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5bae28d950511309d72486abad5c57750ec4e06f6ca860a04c95db7fe81f3b2c [INFO] running `Command { std: "docker" "start" "-a" "5bae28d950511309d72486abad5c57750ec4e06f6ca860a04c95db7fe81f3b2c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5bae28d950511309d72486abad5c57750ec4e06f6ca860a04c95db7fe81f3b2c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5bae28d950511309d72486abad5c57750ec4e06f6ca860a04c95db7fe81f3b2c", kill_on_drop: false }` [INFO] [stdout] 5bae28d950511309d72486abad5c57750ec4e06f6ca860a04c95db7fe81f3b2c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+0e21a27075a8c508f00d1a4430497f17ce93d5c9" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7df33e24577685b6caf364062b055866a9e17024c57ebd668a5290be9ea082bf [INFO] running `Command { std: "docker" "start" "-a" "7df33e24577685b6caf364062b055866a9e17024c57ebd668a5290be9ea082bf", kill_on_drop: false }` [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling libc v0.2.89 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling xu v0.2.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/operations.rs:152:26 [INFO] [stdout] | [INFO] [stdout] 152 | score_provider: &mut ScoreProvider [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 152 - score_provider: &mut ScoreProvider [INFO] [stdout] 152 + score_provider: &mut dyn ScoreProvider [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/operations.rs:174:26 [INFO] [stdout] | [INFO] [stdout] 174 | score_provider: &mut ScoreProvider [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 174 - score_provider: &mut ScoreProvider [INFO] [stdout] 174 + score_provider: &mut dyn ScoreProvider [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/operations.rs:230:26 [INFO] [stdout] | [INFO] [stdout] 230 | score_provider: &mut ScoreProvider, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 230 - score_provider: &mut ScoreProvider, [INFO] [stdout] 230 + score_provider: &mut dyn ScoreProvider, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/operations.rs:138:88 [INFO] [stdout] | [INFO] [stdout] 138 | pub fn run (&self, population: Population, data: &Data, score_provider: &mut ScoreProvider) -> Population [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 138 - pub fn run (&self, population: Population, data: &Data, score_provider: &mut ScoreProvider) -> Population [INFO] [stdout] 138 + pub fn run (&self, population: Population, data: &Data, score_provider: &mut dyn ScoreProvider) -> Population [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/operations.rs:219:13 [INFO] [stdout] | [INFO] [stdout] 219 | for (_, mut agent) in agents { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.22s [INFO] running `Command { std: "docker" "inspect" "7df33e24577685b6caf364062b055866a9e17024c57ebd668a5290be9ea082bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7df33e24577685b6caf364062b055866a9e17024c57ebd668a5290be9ea082bf", kill_on_drop: false }` [INFO] [stdout] 7df33e24577685b6caf364062b055866a9e17024c57ebd668a5290be9ea082bf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+0e21a27075a8c508f00d1a4430497f17ce93d5c9" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c16b9e484f83df587f4bc51fead591fe7c96e5cbbd283c5e741c79eea36d636c [INFO] running `Command { std: "docker" "start" "-a" "c16b9e484f83df587f4bc51fead591fe7c96e5cbbd283c5e741c79eea36d636c", kill_on_drop: false }` [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/operations.rs:152:26 [INFO] [stdout] | [INFO] [stdout] 152 | score_provider: &mut ScoreProvider [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 152 - score_provider: &mut ScoreProvider [INFO] [stdout] 152 + score_provider: &mut dyn ScoreProvider [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/operations.rs:174:26 [INFO] [stdout] | [INFO] [stdout] 174 | score_provider: &mut ScoreProvider [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 174 - score_provider: &mut ScoreProvider [INFO] [stdout] 174 + score_provider: &mut dyn ScoreProvider [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/operations.rs:230:26 [INFO] [stdout] | [INFO] [stdout] 230 | score_provider: &mut ScoreProvider, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 230 - score_provider: &mut ScoreProvider, [INFO] [stdout] 230 + score_provider: &mut dyn ScoreProvider, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/operations.rs:138:88 [INFO] [stdout] | [INFO] [stdout] 138 | pub fn run (&self, population: Population, data: &Data, score_provider: &mut ScoreProvider) -> Population [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 138 - pub fn run (&self, population: Population, data: &Data, score_provider: &mut ScoreProvider) -> Population [INFO] [stdout] 138 + pub fn run (&self, population: Population, data: &Data, score_provider: &mut dyn ScoreProvider) -> Population [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/operations.rs:219:13 [INFO] [stdout] | [INFO] [stdout] 219 | for (_, mut agent) in agents { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling xu v0.2.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/operations.rs:152:26 [INFO] [stdout] | [INFO] [stdout] 152 | score_provider: &mut ScoreProvider [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 152 - score_provider: &mut ScoreProvider [INFO] [stdout] 152 + score_provider: &mut dyn ScoreProvider [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/operations.rs:174:26 [INFO] [stdout] | [INFO] [stdout] 174 | score_provider: &mut ScoreProvider [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 174 - score_provider: &mut ScoreProvider [INFO] [stdout] 174 + score_provider: &mut dyn ScoreProvider [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/operations.rs:230:26 [INFO] [stdout] | [INFO] [stdout] 230 | score_provider: &mut ScoreProvider, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 230 - score_provider: &mut ScoreProvider, [INFO] [stdout] 230 + score_provider: &mut dyn ScoreProvider, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/operations.rs:138:88 [INFO] [stdout] | [INFO] [stdout] 138 | pub fn run (&self, population: Population, data: &Data, score_provider: &mut ScoreProvider) -> Population [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 138 - pub fn run (&self, population: Population, data: &Data, score_provider: &mut ScoreProvider) -> Population [INFO] [stdout] 138 + pub fn run (&self, population: Population, data: &Data, score_provider: &mut dyn ScoreProvider) -> Population [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/operations.rs:219:13 [INFO] [stdout] | [INFO] [stdout] 219 | for (_, mut agent) in agents { [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.00s [INFO] running `Command { std: "docker" "inspect" "c16b9e484f83df587f4bc51fead591fe7c96e5cbbd283c5e741c79eea36d636c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c16b9e484f83df587f4bc51fead591fe7c96e5cbbd283c5e741c79eea36d636c", kill_on_drop: false }` [INFO] [stdout] c16b9e484f83df587f4bc51fead591fe7c96e5cbbd283c5e741c79eea36d636c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+0e21a27075a8c508f00d1a4430497f17ce93d5c9" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] e49b1f580d10b39e8c1b98475b2c42101f3b2ec0239f7927a78f0663aaf4de53 [INFO] running `Command { std: "docker" "start" "-a" "e49b1f580d10b39e8c1b98475b2c42101f3b2ec0239f7927a78f0663aaf4de53", kill_on_drop: false }` [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/operations.rs:152:26 [INFO] [stderr] | [INFO] [stderr] 152 | score_provider: &mut ScoreProvider [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 152 - score_provider: &mut ScoreProvider [INFO] [stderr] 152 + score_provider: &mut dyn ScoreProvider [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/operations.rs:174:26 [INFO] [stderr] | [INFO] [stderr] 174 | score_provider: &mut ScoreProvider [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 174 - score_provider: &mut ScoreProvider [INFO] [stderr] 174 + score_provider: &mut dyn ScoreProvider [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/operations.rs:230:26 [INFO] [stderr] | [INFO] [stderr] 230 | score_provider: &mut ScoreProvider, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 230 - score_provider: &mut ScoreProvider, [INFO] [stderr] 230 + score_provider: &mut dyn ScoreProvider, [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/operations.rs:138:88 [INFO] [stderr] | [INFO] [stderr] 138 | pub fn run (&self, population: Population, data: &Data, score_provider: &mut ScoreProvider) -> Population [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 138 - pub fn run (&self, population: Population, data: &Data, score_provider: &mut ScoreProvider) -> Population [INFO] [stderr] 138 + pub fn run (&self, population: Population, data: &Data, score_provider: &mut dyn ScoreProvider) -> Population [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/operations.rs:219:13 [INFO] [stderr] | [INFO] [stderr] 219 | for (_, mut agent) in agents { [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: `xu` (lib) generated 5 warnings [INFO] [stderr] warning: `xu` (lib test) generated 5 warnings (5 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.14s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/xu-695e74aaa51ae12a) [INFO] [stdout] [INFO] [stdout] running 22 tests [INFO] [stdout] test agent::tests::new_no_genes ... ok [INFO] [stdout] test agent::tests::crossover_parents ... ok [INFO] [stdout] test agent::tests::crossover_some_genes_same_length_other ... ok [INFO] [stdout] test agent::tests::crossover_some_genes_longer_other ... ok [INFO] [stdout] test evolution::tests::run_iterations_nothing_to_do ... ok [INFO] [stdout] test agent::tests::crossover_some_genes_shorter_other ... ok [INFO] [stdout] test operations::tests::rate_to_number_full_proportion ... ok [INFO] [stdout] test operations::tests::rate_to_number_minimum_preference_greater_than_population ... ok [INFO] [stdout] test agent::tests::new_with_genes ... ok [INFO] [stdout] test operations::tests::rate_to_number_minimum_preference_greater_than_proportion ... ok [INFO] [stdout] test operations::tests::rate_to_number_minimum_preference_less_than_proportion ... ok [INFO] [stdout] test operations::tests::rate_to_number_rounds_down ... ok [INFO] [stdout] test operations::tests::rate_to_number_population_is_zero ... ok [INFO] [stdout] test agent::tests::mutate ... ok [INFO] [stdout] test operations::tests::rate_to_number_standard_proportion ... ok [INFO] [stdout] test population::tests::new_empty ... ok [INFO] [stdout] test operations::tests::selection_highest_score_returns_highest ... ok [INFO] [stdout] test population::tests::new_with_false_unique ... ok [INFO] [stdout] test operations::tests::selection_lowest_score_returns_lowest ... ok [INFO] [stdout] test population::tests::cull_all_below ... ok [INFO] [stdout] test population::tests::new_with_true_unique ... ok [INFO] [stdout] test operations::tests::selection_random_any_returns_correct_proportion ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- operations::tests::selection_random_any_returns_correct_proportion stdout ---- [INFO] [stdout] thread 'operations::tests::selection_random_any_returns_correct_proportion' panicked at 'assertion failed: `(left == right)` [INFO] [stdout] left: `2`, [INFO] [stdout] right: `1`', src/operations.rs:391:9 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55a488b0e880 - std::backtrace_rs::backtrace::libunwind::trace::h8bb00aa01257e658 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 1: 0x55a488b0e880 - std::backtrace_rs::backtrace::trace_unsynchronized::hbe32e96be15adfbb [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55a488b0e880 - std::sys_common::backtrace::_print_fmt::h9784b9af5bb44c28 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/sys_common/backtrace.rs:66:5 [INFO] [stdout] 3: 0x55a488b0e880 - ::fmt::h1c87dcc158231dee [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/sys_common/backtrace.rs:45:22 [INFO] [stdout] 4: 0x55a488b3150c - core::fmt::write::h75398e49432c4e9d [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/core/src/fmt/mod.rs:1198:17 [INFO] [stdout] 5: 0x55a488b0b195 - std::io::Write::write_fmt::hf0afd61938d8b31f [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/io/mod.rs:1672:15 [INFO] [stdout] 6: 0x55a488b102c1 - std::sys_common::backtrace::_print::h39d989fb5cda9189 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/sys_common/backtrace.rs:48:5 [INFO] [stdout] 7: 0x55a488b102c1 - std::sys_common::backtrace::print::hafd951f3a156e9b8 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/sys_common/backtrace.rs:35:9 [INFO] [stdout] 8: 0x55a488b102c1 - std::panicking::default_hook::{{closure}}::h3c15d03d8aed3f76 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panicking.rs:295:22 [INFO] [stdout] 9: 0x55a488b0ff16 - std::panicking::default_hook::h6145e5c2935e997c [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panicking.rs:311:9 [INFO] [stdout] 10: 0x55a488b10963 - std::panicking::rust_panic_with_hook::h4418702214a7a914 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panicking.rs:698:17 [INFO] [stdout] 11: 0x55a488b10857 - std::panicking::begin_panic_handler::{{closure}}::h0cc75df59cfeee86 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panicking.rs:588:13 [INFO] [stdout] 12: 0x55a488b0ed54 - std::sys_common::backtrace::__rust_end_short_backtrace::hfebe76dc31b59894 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/sys_common/backtrace.rs:138:18 [INFO] [stdout] 13: 0x55a488b10582 - rust_begin_unwind [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panicking.rs:584:5 [INFO] [stdout] 14: 0x55a488a40e43 - core::panicking::panic_fmt::h28c6dc36de3ad6b2 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/core/src/panicking.rs:142:14 [INFO] [stdout] 15: 0x55a488b30038 - core::panicking::assert_failed_inner::hce4e9f80600fd426 [INFO] [stdout] 16: 0x55a488acaefa - core::panicking::assert_failed::had6e209a9b60634a [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/core/src/panicking.rs:181:5 [INFO] [stdout] 17: 0x55a488a66265 - xu::operations::tests::selection_random_any_returns_correct_proportion::he432c525da1ea10e [INFO] [stdout] at /opt/rustwide/workdir/src/operations.rs:391:9 [INFO] [stdout] 18: 0x55a488a6607a - xu::operations::tests::selection_random_any_returns_correct_proportion::{{closure}}::h92c2810b4c92fe22 [INFO] [stdout] at /opt/rustwide/workdir/src/operations.rs:385:5 [INFO] [stdout] 19: 0x55a488a6b2fe - core::ops::function::FnOnce::call_once::h2a4ae15c6829cc89 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 20: 0x55a488ac0553 - core::ops::function::FnOnce::call_once::hce3bf1b84d649375 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 21: 0x55a488ac0553 - test::__rust_begin_short_backtrace::h268c4dff1fdc08d8 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/test/src/lib.rs:572:5 [INFO] [stdout] 22: 0x55a488abf33c - as core::ops::function::FnOnce>::call_once::h77064d56d798d725 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/alloc/src/boxed.rs:1934:9 [INFO] [stdout] 23: 0x55a488abf33c - as core::ops::function::FnOnce<()>>::call_once::h362603611fd702ef [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 24: 0x55a488abf33c - std::panicking::try::do_call::hc24e8889c40c0b88 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panicking.rs:492:40 [INFO] [stdout] 25: 0x55a488abf33c - std::panicking::try::h64fd9954f6422690 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panicking.rs:456:19 [INFO] [stdout] 26: 0x55a488abf33c - std::panic::catch_unwind::h8590ab8b8c78e131 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panic.rs:137:14 [INFO] [stdout] 27: 0x55a488abf33c - test::run_test_in_process::hd8ca038d3f817f7d [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/test/src/lib.rs:595:18 [INFO] [stdout] 28: 0x55a488abf33c - test::run_test::run_test_inner::{{closure}}::h57a8a429b5e58c39 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/test/src/lib.rs:489:39 [INFO] [stdout] 29: 0x55a488a8b2ac - test::run_test::run_test_inner::{{closure}}::h72dbbb6bf3813446 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/test/src/lib.rs:516:37 [INFO] [stdout] 30: 0x55a488a8b2ac - std::sys_common::backtrace::__rust_begin_short_backtrace::h916790c31ecb4ff9 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/sys_common/backtrace.rs:122:18 [INFO] [stdout] 31: 0x55a488a9128f - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h4ffbab0d0d8ad2ca [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/thread/mod.rs:505:17 [INFO] [stdout] 32: 0x55a488a9128f - as core::ops::function::FnOnce<()>>::call_once::he8df5d343786542a [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 33: 0x55a488a9128f - std::panicking::try::do_call::h80e54b75371d89cf [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panicking.rs:492:40 [INFO] [stdout] 34: 0x55a488a9128f - std::panicking::try::h1b15ecfa1d32df7a [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panicking.rs:456:19 [INFO] [stdout] 35: 0x55a488a9128f - std::panic::catch_unwind::h993ecf1ae87ebd59 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/panic.rs:137:14 [INFO] [stdout] 36: 0x55a488a9128f - std::thread::Builder::spawn_unchecked_::{{closure}}::h23926ef7367e9afd [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/thread/mod.rs:504:30 [INFO] [stdout] 37: 0x55a488a9128f - core::ops::function::FnOnce::call_once{{vtable.shim}}::h93ce9dab9bcb8d25 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 38: 0x55a488b14ee3 - as core::ops::function::FnOnce>::call_once::h7fdba1c346e6c483 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/alloc/src/boxed.rs:1934:9 [INFO] [stdout] 39: 0x55a488b14ee3 - as core::ops::function::FnOnce>::call_once::h8839b4becacc6e1e [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/alloc/src/boxed.rs:1934:9 [INFO] [stdout] 40: 0x55a488b14ee3 - std::sys::unix::thread::Thread::new::thread_start::h5077fd2da854c080 [INFO] [stdout] at /rustc/0e21a27075a8c508f00d1a4430497f17ce93d5c9/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 41: 0x7f00651cd609 - start_thread [INFO] [stdout] 42: 0x7f0064f9d133 - clone [INFO] [stdout] 43: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] operations::tests::selection_random_any_returns_correct_proportion [INFO] [stdout] [INFO] [stdout] test result: FAILED. 21 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--lib' [INFO] running `Command { std: "docker" "inspect" "e49b1f580d10b39e8c1b98475b2c42101f3b2ec0239f7927a78f0663aaf4de53", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e49b1f580d10b39e8c1b98475b2c42101f3b2ec0239f7927a78f0663aaf4de53", kill_on_drop: false }` [INFO] [stdout] e49b1f580d10b39e8c1b98475b2c42101f3b2ec0239f7927a78f0663aaf4de53