[INFO] fetching crate trex 0.2.0... [INFO] testing trex-0.2.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479 [INFO] extracting crate trex 0.2.0 into /workspace/builds/worker-14/source [INFO] validating manifest of crates.io crate trex 0.2.0 on toolchain b70888601af92f6cdc0364abab3446e418b91d36 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate trex 0.2.0 [INFO] finished tweaking crates.io crate trex 0.2.0 [INFO] tweaked toml for crates.io crate trex 0.2.0 written to /workspace/builds/worker-14/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1eb5607eec123f6136cffe89f6618dafb85467c91135ca4da863f858588350ae [INFO] running `Command { std: "docker" "start" "-a" "1eb5607eec123f6136cffe89f6618dafb85467c91135ca4da863f858588350ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1eb5607eec123f6136cffe89f6618dafb85467c91135ca4da863f858588350ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1eb5607eec123f6136cffe89f6618dafb85467c91135ca4da863f858588350ae", kill_on_drop: false }` [INFO] [stdout] 1eb5607eec123f6136cffe89f6618dafb85467c91135ca4da863f858588350ae [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1b8428d1939edbceb510abd18637e183cd254a273828387db62df35abe2b1c19 [INFO] running `Command { std: "docker" "start" "-a" "1b8428d1939edbceb510abd18637e183cd254a273828387db62df35abe2b1c19", kill_on_drop: false }` [INFO] [stderr] Compiling bit-vec v0.4.4 [INFO] [stderr] Compiling vec_map v0.6.0 [INFO] [stderr] Compiling bit-set v0.4.0 [INFO] [stderr] Compiling trex v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/event.rs:10:47 [INFO] [stdout] | [INFO] [stdout] 10 | fn merge(&mut self, any_emitter: &mut Box); [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AnyEventEmitter` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/event.rs:42:47 [INFO] [stdout] | [INFO] [stdout] 42 | fn merge(&mut self, any_emitter: &mut Box) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AnyEventEmitter` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/event.rs:97:24 [INFO] [stdout] | [INFO] [stdout] 97 | queues: VecMap>, [INFO] [stdout] | ^^^^^^^^^^^^^ help: use `dyn`: `dyn AnyEventQueue` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/event.rs:139:26 [INFO] [stdout] | [INFO] [stdout] 139 | emitters: VecMap>, [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AnyEventEmitter` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/simulation.rs:21:22 [INFO] [stdout] | [INFO] [stdout] 21 | systems: Vec>, [INFO] [stdout] | ^^^^^^ help: use `dyn`: `dyn System` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/world.rs:42:24 [INFO] [stdout] | [INFO] [stdout] 42 | stores: VecMap>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AnyComponentStore` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.68s [INFO] running `Command { std: "docker" "inspect" "1b8428d1939edbceb510abd18637e183cd254a273828387db62df35abe2b1c19", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1b8428d1939edbceb510abd18637e183cd254a273828387db62df35abe2b1c19", kill_on_drop: false }` [INFO] [stdout] 1b8428d1939edbceb510abd18637e183cd254a273828387db62df35abe2b1c19 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] aba7089cf31a33cc6844b011c843dc8b450077e8fa3922340f455fd723bb345f [INFO] running `Command { std: "docker" "start" "-a" "aba7089cf31a33cc6844b011c843dc8b450077e8fa3922340f455fd723bb345f", kill_on_drop: false }` [INFO] [stderr] Compiling ansi_term v0.7.5 [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/event.rs:10:47 [INFO] [stdout] | [INFO] [stdout] 10 | fn merge(&mut self, any_emitter: &mut Box); [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AnyEventEmitter` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/event.rs:42:47 [INFO] [stdout] | [INFO] [stdout] 42 | fn merge(&mut self, any_emitter: &mut Box) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AnyEventEmitter` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/event.rs:97:24 [INFO] [stdout] | [INFO] [stdout] 97 | queues: VecMap>, [INFO] [stdout] | ^^^^^^^^^^^^^ help: use `dyn`: `dyn AnyEventQueue` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/event.rs:139:26 [INFO] [stdout] | [INFO] [stdout] 139 | emitters: VecMap>, [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AnyEventEmitter` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/simulation.rs:21:22 [INFO] [stdout] | [INFO] [stdout] 21 | systems: Vec>, [INFO] [stdout] | ^^^^^^ help: use `dyn`: `dyn System` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/world.rs:42:24 [INFO] [stdout] | [INFO] [stdout] 42 | stores: VecMap>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AnyComponentStore` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling trex v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/event.rs:10:47 [INFO] [stdout] | [INFO] [stdout] 10 | fn merge(&mut self, any_emitter: &mut Box); [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AnyEventEmitter` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/event.rs:42:47 [INFO] [stdout] | [INFO] [stdout] 42 | fn merge(&mut self, any_emitter: &mut Box) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AnyEventEmitter` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/event.rs:97:24 [INFO] [stdout] | [INFO] [stdout] 97 | queues: VecMap>, [INFO] [stdout] | ^^^^^^^^^^^^^ help: use `dyn`: `dyn AnyEventQueue` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/event.rs:139:26 [INFO] [stdout] | [INFO] [stdout] 139 | emitters: VecMap>, [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AnyEventEmitter` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/simulation.rs:21:22 [INFO] [stdout] | [INFO] [stdout] 21 | systems: Vec>, [INFO] [stdout] | ^^^^^^ help: use `dyn`: `dyn System` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/world.rs:42:24 [INFO] [stdout] | [INFO] [stdout] 42 | stores: VecMap>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AnyComponentStore` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.52s [INFO] running `Command { std: "docker" "inspect" "aba7089cf31a33cc6844b011c843dc8b450077e8fa3922340f455fd723bb345f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aba7089cf31a33cc6844b011c843dc8b450077e8fa3922340f455fd723bb345f", kill_on_drop: false }` [INFO] [stdout] aba7089cf31a33cc6844b011c843dc8b450077e8fa3922340f455fd723bb345f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 9f2327b3c18ffc9921919a8db17a883ff591d9f67e421cc6538a55a86f9aebe5 [INFO] running `Command { std: "docker" "start" "-a" "9f2327b3c18ffc9921919a8db17a883ff591d9f67e421cc6538a55a86f9aebe5", kill_on_drop: false }` [INFO] [stdout] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] running 0 tests [INFO] [stderr] --> src/event.rs:10:47 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] 10 | fn merge(&mut self, any_emitter: &mut Box); [INFO] [stdout] [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AnyEventEmitter` [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 issue #80165 [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/event.rs:42:47 [INFO] [stderr] | [INFO] [stderr] 42 | fn merge(&mut self, any_emitter: &mut Box) { [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AnyEventEmitter` [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 issue #80165 [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/event.rs:97:24 [INFO] [stderr] | [INFO] [stderr] 97 | queues: VecMap>, [INFO] [stderr] | ^^^^^^^^^^^^^ help: use `dyn`: `dyn AnyEventQueue` [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 issue #80165 [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/event.rs:139:26 [INFO] [stderr] | [INFO] [stderr] 139 | emitters: VecMap>, [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AnyEventEmitter` [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 issue #80165 [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/simulation.rs:21:22 [INFO] [stderr] | [INFO] [stderr] 21 | systems: Vec>, [INFO] [stderr] | ^^^^^^ help: use `dyn`: `dyn System` [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 issue #80165 [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/world.rs:42:24 [INFO] [stderr] | [INFO] [stderr] 42 | stores: VecMap>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn AnyComponentStore` [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 issue #80165 [INFO] [stderr] [INFO] [stderr] warning: `trex` (lib) generated 6 warnings [INFO] [stderr] warning: `trex` (lib test) generated 6 warnings (6 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/trex-97f39536151b5714) [INFO] [stderr] Doc-tests trex [INFO] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test src/world.rs - world::World::exists (line 70) ... ok [INFO] [stdout] test src/world.rs - world::World::destroy (line 138) ... ok [INFO] [stdout] test src/world.rs - world::World::tag (line 98) ... ok [INFO] [stdout] test src/world.rs - world::World::untag (line 115) ... ok [INFO] [stdout] test src/lib.rs - (line 7) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.64s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "9f2327b3c18ffc9921919a8db17a883ff591d9f67e421cc6538a55a86f9aebe5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9f2327b3c18ffc9921919a8db17a883ff591d9f67e421cc6538a55a86f9aebe5", kill_on_drop: false }` [INFO] [stdout] 9f2327b3c18ffc9921919a8db17a883ff591d9f67e421cc6538a55a86f9aebe5