[INFO] fetching crate reflux 6.4.2...
[INFO] testing reflux-6.4.2 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate reflux 6.4.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate reflux 6.4.2
[INFO] finished tweaking crates.io crate reflux 6.4.2
[INFO] tweaked toml for crates.io crate reflux 6.4.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate reflux 6.4.2 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate reflux 6.4.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 31769f0bac998bab4d93763152536ce5a06991f3abf68eca4355536faf91d38a
[INFO] running `Command { std: "docker" "start" "-a" "31769f0bac998bab4d93763152536ce5a06991f3abf68eca4355536faf91d38a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31769f0bac998bab4d93763152536ce5a06991f3abf68eca4355536faf91d38a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31769f0bac998bab4d93763152536ce5a06991f3abf68eca4355536faf91d38a", kill_on_drop: false }`
[INFO] [stdout] 31769f0bac998bab4d93763152536ce5a06991f3abf68eca4355536faf91d38a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a63fdd77f740c4280b399ae2aafd143a56ef08dea675d19e381880999963364c
[INFO] running `Command { std: "docker" "start" "-a" "a63fdd77f740c4280b399ae2aafd143a56ef08dea675d19e381880999963364c", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling crossbeam-channel v0.5.14
[INFO] [stderr]    Compiling reflux v6.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: feature `coroutines` is declared but not used
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(coroutines, coroutine_trait, stmt_expr_attributes)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `stmt_expr_attributes` is declared but not used
[INFO] [stdout]  --> src/lib.rs:1:41
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(coroutines, coroutine_trait, stmt_expr_attributes)]
[INFO] [stdout]   |                                         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.50s
[INFO] running `Command { std: "docker" "inspect" "a63fdd77f740c4280b399ae2aafd143a56ef08dea675d19e381880999963364c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a63fdd77f740c4280b399ae2aafd143a56ef08dea675d19e381880999963364c", kill_on_drop: false }`
[INFO] [stdout] a63fdd77f740c4280b399ae2aafd143a56ef08dea675d19e381880999963364c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5562721529ff3c226813d22ffb6aac43a4308171f9feefde5b78853c4cb09c9f
[INFO] running `Command { std: "docker" "start" "-a" "5562721529ff3c226813d22ffb6aac43a4308171f9feefde5b78853c4cb09c9f", kill_on_drop: false }`
[INFO] [stdout] warning: feature `coroutines` is declared but not used
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(coroutines, coroutine_trait, stmt_expr_attributes)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `stmt_expr_attributes` is declared but not used
[INFO] [stdout]  --> src/lib.rs:1:41
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(coroutines, coroutine_trait, stmt_expr_attributes)]
[INFO] [stdout]   |                                         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling reflux v6.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]     --> src/lib.rs:1355:9
[INFO] [stdout]      |
[INFO] [stdout] 1304 |         return;
[INFO] [stdout]      |         ------ any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 1355 |         yield TransformerResult::Effect(TransformerEffectType::Debug($a));
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/tests.rs:481:9
[INFO] [stdout]      |
[INFO] [stdout]  481 |         effect_debug!(vec!["Invalid effect".to_string()]);
[INFO] [stdout]      |         ------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]      = note: this warning originates in the macro `effect_debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]     --> src/lib.rs:1355:9
[INFO] [stdout]      |
[INFO] [stdout] 1319 |         return;
[INFO] [stdout]      |         ------ any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 1355 |         yield TransformerResult::Effect(TransformerEffectType::Debug($a));
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]      |
[INFO] [stdout]     ::: src/tests.rs:519:9
[INFO] [stdout]      |
[INFO] [stdout]  519 |         effect_debug!(vec!["Invalid effect".to_string()]);
[INFO] [stdout]      |         ------------------------------------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: this warning originates in the macro `effect_debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `Command { std: "docker" "inspect" "5562721529ff3c226813d22ffb6aac43a4308171f9feefde5b78853c4cb09c9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5562721529ff3c226813d22ffb6aac43a4308171f9feefde5b78853c4cb09c9f", kill_on_drop: false }`
[INFO] [stdout] 5562721529ff3c226813d22ffb6aac43a4308171f9feefde5b78853c4cb09c9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9bb796b67f7a240173dd7ed6f103278d8973970aaca6a24592322207858cb152
[INFO] running `Command { std: "docker" "start" "-a" "9bb796b67f7a240173dd7ed6f103278d8973970aaca6a24592322207858cb152", kill_on_drop: false }`
[INFO] [stderr] warning: feature `coroutines` is declared but not used
[INFO] [stderr]  --> src/lib.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(coroutines, coroutine_trait, stmt_expr_attributes)]
[INFO] [stderr]   |            ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: feature `stmt_expr_attributes` is declared but not used
[INFO] [stderr]  --> src/lib.rs:1:41
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(coroutines, coroutine_trait, stmt_expr_attributes)]
[INFO] [stderr]   |                                         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `reflux` (lib) generated 2 warnings
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]     --> src/lib.rs:1355:9
[INFO] [stderr]      |
[INFO] [stderr] 1304 |         return;
[INFO] [stderr]      |         ------ any code following this expression is unreachable
[INFO] [stderr] ...
[INFO] [stderr] 1355 |         yield TransformerResult::Effect(TransformerEffectType::Debug($a));
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]      |
[INFO] [stderr]     ::: src/tests.rs:481:9
[INFO] [stderr]      |
[INFO] [stderr]  481 |         effect_debug!(vec!["Invalid effect".to_string()]);
[INFO] [stderr]      |         ------------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr]      = note: this warning originates in the macro `effect_debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable statement
[INFO] [stderr]     --> src/lib.rs:1355:9
[INFO] [stderr]      |
[INFO] [stderr] 1319 |         return;
[INFO] [stderr]      |         ------ any code following this expression is unreachable
[INFO] [stderr] ...
[INFO] [stderr] 1355 |         yield TransformerResult::Effect(TransformerEffectType::Debug($a));
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stderr]      |
[INFO] [stderr]     ::: src/tests.rs:519:9
[INFO] [stderr]      |
[INFO] [stderr]  519 |         effect_debug!(vec!["Invalid effect".to_string()]);
[INFO] [stderr]      |         ------------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: this warning originates in the macro `effect_debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `reflux` (lib test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/reflux-93e71e39b879f55e)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test tests::extractor_works ... ok
[INFO] [stdout] test tests::funnel_works ... ok
[INFO] [stdout] test tests::router_works ... ok
[INFO] [stdout] test tests::broadcast_works ... ok
[INFO] [stdout] test tests::messenger_works ... ok
[INFO] [stdout] test tests::filter_works ... ok
[INFO] [stdout] test tests::transformer_emerg_effect ... ok
[INFO] [stdout] test tests::transformer_crit_effect ... ok
[INFO] [stdout] test tests::transformer_works ... ok
[INFO] [stdout] test tests::transformer_effect ... ok
[INFO] [stdout] test tests::loader_works ... ok
[INFO] [stdout] test tests::router_drop_works ... ok
[INFO] [stdout] test tests::router_overflow_works ... ok
[INFO] [stdout] test tests::funnel_overflow_works ... ok
[INFO] [stdout] test tests::funnel_drop_works ... ok
[INFO] [stdout] test tests::accumulator_works ... ok
[INFO] [stdout] test tests::accumulator_frame_works ... ok
[INFO] [stdout] test tests::accumulator_scalar_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.06s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests reflux
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - Extractor (line 60) ... ok
[INFO] [stdout] test src/lib.rs - Router (line 417) ... ok
[INFO] [stdout] test src/lib.rs - Filter (line 1172) ... ok
[INFO] [stdout] test src/lib.rs - Loader (line 175) ... ok
[INFO] [stdout] test src/lib.rs - Funnel (line 643) ... ok
[INFO] [stdout] test src/lib.rs - Broadcast (line 300) ... ok
[INFO] [stdout] test src/lib.rs - Transformer (line 967) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.76s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9bb796b67f7a240173dd7ed6f103278d8973970aaca6a24592322207858cb152", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bb796b67f7a240173dd7ed6f103278d8973970aaca6a24592322207858cb152", kill_on_drop: false }`
[INFO] [stdout] 9bb796b67f7a240173dd7ed6f103278d8973970aaca6a24592322207858cb152