[INFO] fetching crate transducers 0.0.2...
[INFO] testing transducers-0.0.2 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] extracting crate transducers 0.0.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate transducers 0.0.2 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate transducers 0.0.2
[INFO] finished tweaking crates.io crate transducers 0.0.2
[INFO] tweaked toml for crates.io crate transducers 0.0.2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3692dd3e2ce801906f0ebd4ed5b8631b19de6884d16760d4438d38e7f8b60e90
[INFO] running `Command { std: "docker" "start" "-a" "3692dd3e2ce801906f0ebd4ed5b8631b19de6884d16760d4438d38e7f8b60e90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3692dd3e2ce801906f0ebd4ed5b8631b19de6884d16760d4438d38e7f8b60e90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3692dd3e2ce801906f0ebd4ed5b8631b19de6884d16760d4438d38e7f8b60e90", kill_on_drop: false }`
[INFO] [stdout] 3692dd3e2ce801906f0ebd4ed5b8631b19de6884d16760d4438d38e7f8b60e90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 849f45476d4689dca1623d5a00a3ecb9151503d298bce65b9ea2573100ae7af5
[INFO] running `Command { std: "docker" "start" "-a" "849f45476d4689dca1623d5a00a3ecb9151503d298bce65b9ea2573100ae7af5", kill_on_drop: false }`
[INFO] [stderr]    Compiling transducers v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/transform.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 22 |     step: Box<Fn(R, T) -> R + 't>
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(R, T) -> R + 't`
[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 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/transform.rs:63:15
[INFO] [stdout]    |
[INFO] [stdout] 63 |     step: Box<Fn(R, T) -> R + 't>,
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(R, T) -> R + 't`
[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 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/transform.rs:116:15
[INFO] [stdout]     |
[INFO] [stdout] 116 |     step: Box<Fn(R, T) -> R + 't>,
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(R, T) -> R + 't`
[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 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "849f45476d4689dca1623d5a00a3ecb9151503d298bce65b9ea2573100ae7af5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "849f45476d4689dca1623d5a00a3ecb9151503d298bce65b9ea2573100ae7af5", kill_on_drop: false }`
[INFO] [stdout] 849f45476d4689dca1623d5a00a3ecb9151503d298bce65b9ea2573100ae7af5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f91f5702ae97753d86bac79851244242ed1ad5b0d931267db2baf3457a612839
[INFO] running `Command { std: "docker" "start" "-a" "f91f5702ae97753d86bac79851244242ed1ad5b0d931267db2baf3457a612839", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/transform.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 22 |     step: Box<Fn(R, T) -> R + 't>
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(R, T) -> R + 't`
[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 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/transform.rs:63:15
[INFO] [stdout]    |
[INFO] [stdout] 63 |     step: Box<Fn(R, T) -> R + 't>,
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(R, T) -> R + 't`
[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 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/transform.rs:116:15
[INFO] [stdout]     |
[INFO] [stdout] 116 |     step: Box<Fn(R, T) -> R + 't>,
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(R, T) -> R + 't`
[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 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling transducers v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/transform.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 22 |     step: Box<Fn(R, T) -> R + 't>
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(R, T) -> R + 't`
[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 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/transform.rs:63:15
[INFO] [stdout]    |
[INFO] [stdout] 63 |     step: Box<Fn(R, T) -> R + 't>,
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(R, T) -> R + 't`
[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 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/transform.rs:116:15
[INFO] [stdout]     |
[INFO] [stdout] 116 |     step: Box<Fn(R, T) -> R + 't>,
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(R, T) -> R + 't`
[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 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.89s
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f91f5702ae97753d86bac79851244242ed1ad5b0d931267db2baf3457a612839", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f91f5702ae97753d86bac79851244242ed1ad5b0d931267db2baf3457a612839", kill_on_drop: false }`
[INFO] [stdout] f91f5702ae97753d86bac79851244242ed1ad5b0d931267db2baf3457a612839
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 08d94dbb3ca2c5cc0cad1f468b3645fb8007ebf90625989e4b51e7446d5fe0d5
[INFO] running `Command { std: "docker" "start" "-a" "08d94dbb3ca2c5cc0cad1f468b3645fb8007ebf90625989e4b51e7446d5fe0d5", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] running 11 tests
[INFO] [stderr]   --> src/transform.rs:22:15
[INFO] [stdout] test filtering_on_iter ... ok
[INFO] [stderr]    |
[INFO] [stdout] test identity_is_identity_on_iter ... ok
[INFO] [stderr] 22 |     step: Box<Fn(R, T) -> R + 't>
[INFO] [stdout] test mapping_on_iter ... ok
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(R, T) -> R + 't`
[INFO] [stdout] test compose::compose_trans_with_id_is_id ... ok
[INFO] [stderr]    |
[INFO] [stdout] test reduce_iter_sum ... ok
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] test compose::compose_typechecks ... ok
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout] test compose::compose_is_associative ... ok
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] test compose::compose_trans_typechecks ... ok
[INFO] [stderr] 
[INFO] [stdout] test compose::compose_trans_is_associative ... ok
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] test compose::compose_with_id_is_id ... ok
[INFO] [stderr]   --> src/transform.rs:63:15
[INFO] [stdout] test compose_mapping_filtering ... ok
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 63 |     step: Box<Fn(R, T) -> R + 't>,
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(R, T) -> R + 't`
[INFO] [stdout] 
[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 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/transform.rs:116:15
[INFO] [stderr]     |
[INFO] [stderr] 116 |     step: Box<Fn(R, T) -> R + 't>,
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(R, T) -> R + 't`
[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 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: `transducers` (lib) generated 3 warnings
[INFO] [stderr] warning: `transducers` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/transducers-fa4ceac3666cef52)
[INFO] [stderr]    Doc-tests transducers
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - transduce (line 103) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.48s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "08d94dbb3ca2c5cc0cad1f468b3645fb8007ebf90625989e4b51e7446d5fe0d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08d94dbb3ca2c5cc0cad1f468b3645fb8007ebf90625989e4b51e7446d5fe0d5", kill_on_drop: false }`
[INFO] [stdout] 08d94dbb3ca2c5cc0cad1f468b3645fb8007ebf90625989e4b51e7446d5fe0d5