[INFO] cloning repository https://github.com/parrottq/tworld [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/parrottq/tworld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparrottq%2Ftworld", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparrottq%2Ftworld'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] adf9f959c37573b18914e8885e1fdaf9e655017e [INFO] testing parrottq/tworld against beta-2022-02-22 for beta-1.60-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fparrottq%2Ftworld" "/workspace/builds/worker-15/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/parrottq/tworld on toolchain beta-2022-02-22 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/parrottq/tworld [INFO] finished tweaking git repo https://github.com/parrottq/tworld [INFO] tweaked toml for git repo https://github.com/parrottq/tworld written to /workspace/builds/worker-15/source/Cargo.toml [INFO] crate git repo https://github.com/parrottq/tworld already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2874c998f57d4bbbc50e38c87e630e9045ac81c3b169ee30034cbe65e357e5e1 [INFO] running `Command { std: "docker" "start" "-a" "2874c998f57d4bbbc50e38c87e630e9045ac81c3b169ee30034cbe65e357e5e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2874c998f57d4bbbc50e38c87e630e9045ac81c3b169ee30034cbe65e357e5e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2874c998f57d4bbbc50e38c87e630e9045ac81c3b169ee30034cbe65e357e5e1", kill_on_drop: false }` [INFO] [stdout] 2874c998f57d4bbbc50e38c87e630e9045ac81c3b169ee30034cbe65e357e5e1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7bf5ca10b7e5128c907b8c5c6c15008bed30da5b9f329adef2f69ef94810966c [INFO] running `Command { std: "docker" "start" "-a" "7bf5ca10b7e5128c907b8c5c6c15008bed30da5b9f329adef2f69ef94810966c", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling autocfg v0.1.4 [INFO] [stderr] Compiling num-bigint v0.2.2 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Compiling num-complex v0.2.3 [INFO] [stderr] Compiling num-iter v0.1.39 [INFO] [stderr] Compiling num-rational v0.2.2 [INFO] [stderr] Compiling num v0.2.0 [INFO] [stderr] Compiling tworld v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/parsing.rs:120:22 [INFO] [stdout] | [INFO] [stdout] 120 | reader: &mut FnMut(&mut Self) -> T, [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 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 120 - reader: &mut FnMut(&mut Self) -> T, [INFO] [stdout] 120 + reader: &mut dyn FnMut(&mut Self) -> T, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/parsing.rs:121:21 [INFO] [stdout] | [INFO] [stdout] 121 | sizer: &mut FnMut(&mut Self) -> G, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 121 - sizer: &mut FnMut(&mut Self) -> G, [INFO] [stdout] 121 + sizer: &mut dyn FnMut(&mut Self) -> G, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/writing.rs:18:22 [INFO] [stdout] | [INFO] [stdout] 18 | writer: &mut FnMut(&mut Self, T), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 18 - writer: &mut FnMut(&mut Self, T), [INFO] [stdout] 18 + writer: &mut dyn FnMut(&mut Self, T), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/writing.rs:19:23 [INFO] [stdout] | [INFO] [stdout] 19 | counter: &mut FnMut(&mut Self, G), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 19 - counter: &mut FnMut(&mut Self, G), [INFO] [stdout] 19 + counter: &mut dyn FnMut(&mut Self, G), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/writing.rs:62:22 [INFO] [stdout] | [INFO] [stdout] 62 | writer: &mut FnMut(&mut Self, T), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 62 - writer: &mut FnMut(&mut Self, T), [INFO] [stdout] 62 + writer: &mut dyn FnMut(&mut Self, T), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/writing.rs:63:23 [INFO] [stdout] | [INFO] [stdout] 63 | counter: &mut FnMut(&mut Self, G), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 63 - counter: &mut FnMut(&mut Self, G), [INFO] [stdout] 63 + counter: &mut dyn FnMut(&mut Self, G), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.05s [INFO] running `Command { std: "docker" "inspect" "7bf5ca10b7e5128c907b8c5c6c15008bed30da5b9f329adef2f69ef94810966c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7bf5ca10b7e5128c907b8c5c6c15008bed30da5b9f329adef2f69ef94810966c", kill_on_drop: false }` [INFO] [stdout] 7bf5ca10b7e5128c907b8c5c6c15008bed30da5b9f329adef2f69ef94810966c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3b01bc975c7d04b813c09e207d44387a9a4951e3f3b56520696741086bd7964f [INFO] running `Command { std: "docker" "start" "-a" "3b01bc975c7d04b813c09e207d44387a9a4951e3f3b56520696741086bd7964f", kill_on_drop: false }` [INFO] [stderr] Compiling tworld v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/parsing.rs:120:22 [INFO] [stdout] | [INFO] [stdout] 120 | reader: &mut FnMut(&mut Self) -> T, [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 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 120 - reader: &mut FnMut(&mut Self) -> T, [INFO] [stdout] 120 + reader: &mut dyn FnMut(&mut Self) -> T, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/parsing.rs:121:21 [INFO] [stdout] | [INFO] [stdout] 121 | sizer: &mut FnMut(&mut Self) -> G, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 121 - sizer: &mut FnMut(&mut Self) -> G, [INFO] [stdout] 121 + sizer: &mut dyn FnMut(&mut Self) -> G, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/writing.rs:18:22 [INFO] [stdout] | [INFO] [stdout] 18 | writer: &mut FnMut(&mut Self, T), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 18 - writer: &mut FnMut(&mut Self, T), [INFO] [stdout] 18 + writer: &mut dyn FnMut(&mut Self, T), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/writing.rs:19:23 [INFO] [stdout] | [INFO] [stdout] 19 | counter: &mut FnMut(&mut Self, G), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 19 - counter: &mut FnMut(&mut Self, G), [INFO] [stdout] 19 + counter: &mut dyn FnMut(&mut Self, G), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/writing.rs:62:22 [INFO] [stdout] | [INFO] [stdout] 62 | writer: &mut FnMut(&mut Self, T), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 62 - writer: &mut FnMut(&mut Self, T), [INFO] [stdout] 62 + writer: &mut dyn FnMut(&mut Self, T), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/writing.rs:63:23 [INFO] [stdout] | [INFO] [stdout] 63 | counter: &mut FnMut(&mut Self, G), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 63 - counter: &mut FnMut(&mut Self, G), [INFO] [stdout] 63 + counter: &mut dyn FnMut(&mut Self, G), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.48s [INFO] running `Command { std: "docker" "inspect" "3b01bc975c7d04b813c09e207d44387a9a4951e3f3b56520696741086bd7964f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3b01bc975c7d04b813c09e207d44387a9a4951e3f3b56520696741086bd7964f", kill_on_drop: false }` [INFO] [stdout] 3b01bc975c7d04b813c09e207d44387a9a4951e3f3b56520696741086bd7964f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 0b2081e05caf65d46e8f079869206c21030f4568992acf40b9ed885f747f86d9 [INFO] running `Command { std: "docker" "start" "-a" "0b2081e05caf65d46e8f079869206c21030f4568992acf40b9ed885f747f86d9", kill_on_drop: false }` [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/parsing.rs:120:22 [INFO] [stderr] | [INFO] [stderr] 120 | reader: &mut FnMut(&mut Self) -> T, [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 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 120 - reader: &mut FnMut(&mut Self) -> T, [INFO] [stderr] 120 + reader: &mut dyn FnMut(&mut Self) -> T, [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/parsing.rs:121:21 [INFO] [stderr] | [INFO] [stderr] 121 | sizer: &mut FnMut(&mut Self) -> G, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 121 - sizer: &mut FnMut(&mut Self) -> G, [INFO] [stderr] 121 + sizer: &mut dyn FnMut(&mut Self) -> G, [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/writing.rs:18:22 [INFO] [stderr] | [INFO] [stderr] 18 | writer: &mut FnMut(&mut Self, T), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 18 - writer: &mut FnMut(&mut Self, T), [INFO] [stderr] 18 + writer: &mut dyn FnMut(&mut Self, T), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/writing.rs:19:23 [INFO] [stderr] | [INFO] [stderr] 19 | counter: &mut FnMut(&mut Self, G), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 19 - counter: &mut FnMut(&mut Self, G), [INFO] [stderr] 19 + counter: &mut dyn FnMut(&mut Self, G), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/writing.rs:62:22 [INFO] [stderr] | [INFO] [stderr] 62 | writer: &mut FnMut(&mut Self, T), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 62 - writer: &mut FnMut(&mut Self, T), [INFO] [stderr] 62 + writer: &mut dyn FnMut(&mut Self, T), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/writing.rs:63:23 [INFO] [stderr] | [INFO] [stderr] 63 | counter: &mut FnMut(&mut Self, G), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 63 - counter: &mut FnMut(&mut Self, G), [INFO] [stderr] 63 + counter: &mut dyn FnMut(&mut Self, G), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `tworld` (bin "tworld" test) generated 6 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/tworld-eb8966ae1c2d26b4) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "0b2081e05caf65d46e8f079869206c21030f4568992acf40b9ed885f747f86d9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0b2081e05caf65d46e8f079869206c21030f4568992acf40b9ed885f747f86d9", kill_on_drop: false }` [INFO] [stdout] 0b2081e05caf65d46e8f079869206c21030f4568992acf40b9ed885f747f86d9