[INFO] fetching crate iterators_extended 0.2.0...
[INFO] testing iterators_extended-0.2.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate iterators_extended 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate iterators_extended 0.2.0
[INFO] finished tweaking crates.io crate iterators_extended 0.2.0
[INFO] tweaked toml for crates.io crate iterators_extended 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate iterators_extended 0.2.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate iterators_extended 0.2.0 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79f68e92e5b9064319b08bf9706306b83277d007cc7b5c9c6bd1e165c5ed07d2
[INFO] running `Command { std: "docker" "start" "-a" "79f68e92e5b9064319b08bf9706306b83277d007cc7b5c9c6bd1e165c5ed07d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79f68e92e5b9064319b08bf9706306b83277d007cc7b5c9c6bd1e165c5ed07d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79f68e92e5b9064319b08bf9706306b83277d007cc7b5c9c6bd1e165c5ed07d2", kill_on_drop: false }`
[INFO] [stdout] 79f68e92e5b9064319b08bf9706306b83277d007cc7b5c9c6bd1e165c5ed07d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d1b79687aa079d6bae49fe7a310db46ffee70933853d34f50a1d796192ffb9e
[INFO] running `Command { std: "docker" "start" "-a" "5d1b79687aa079d6bae49fe7a310db46ffee70933853d34f50a1d796192ffb9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling iterators_extended v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `InterleaveIterator` is never constructed
[INFO] [stdout]  --> src/interleave.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct InterleaveIterator<I, J> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IntoInterleaveIterator` is never used
[INFO] [stdout]   --> src/interleave.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 27 | trait IntoInterleaveIterator: IntoIterator {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IntoLoggingIterator` is never used
[INFO] [stdout]   --> src/logging.rs:22:7
[INFO] [stdout]    |
[INFO] [stdout] 22 | trait IntoLoggingIterator {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "5d1b79687aa079d6bae49fe7a310db46ffee70933853d34f50a1d796192ffb9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d1b79687aa079d6bae49fe7a310db46ffee70933853d34f50a1d796192ffb9e", kill_on_drop: false }`
[INFO] [stdout] 5d1b79687aa079d6bae49fe7a310db46ffee70933853d34f50a1d796192ffb9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e1748c02eb863dfbac637be19479960c54750c1699e0c00c5cd67534eac55f7
[INFO] running `Command { std: "docker" "start" "-a" "6e1748c02eb863dfbac637be19479960c54750c1699e0c00c5cd67534eac55f7", kill_on_drop: false }`
[INFO] [stdout] warning: struct `InterleaveIterator` is never constructed
[INFO] [stdout]  --> src/interleave.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct InterleaveIterator<I, J> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IntoInterleaveIterator` is never used
[INFO] [stdout]   --> src/interleave.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 27 | trait IntoInterleaveIterator: IntoIterator {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IntoLoggingIterator` is never used
[INFO] [stdout]   --> src/logging.rs:22:7
[INFO] [stdout]    |
[INFO] [stdout] 22 | trait IntoLoggingIterator {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling iterators_extended v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `mapped`
[INFO] [stdout]    --> src/stateful_threaded.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let mapped = values
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_mapped`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "6e1748c02eb863dfbac637be19479960c54750c1699e0c00c5cd67534eac55f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e1748c02eb863dfbac637be19479960c54750c1699e0c00c5cd67534eac55f7", kill_on_drop: false }`
[INFO] [stdout] 6e1748c02eb863dfbac637be19479960c54750c1699e0c00c5cd67534eac55f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fb785ebebed1b1a6e8fe11f44a941bbcb13b6051240204a8068cad58e57bb75f
[INFO] running `Command { std: "docker" "start" "-a" "fb785ebebed1b1a6e8fe11f44a941bbcb13b6051240204a8068cad58e57bb75f", kill_on_drop: false }`
[INFO] [stderr] warning: struct `InterleaveIterator` is never constructed
[INFO] [stdout] 
[INFO] [stderr]  --> src/interleave.rs:2:8
[INFO] [stdout] running 16 tests
[INFO] [stderr]   |
[INFO] [stderr] 2 | struct InterleaveIterator<I, J> {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait `IntoInterleaveIterator` is never used
[INFO] [stderr]   --> src/interleave.rs:27:7
[INFO] [stderr]    |
[INFO] [stderr] 27 | trait IntoInterleaveIterator: IntoIterator {
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `IntoLoggingIterator` is never used
[INFO] [stderr]   --> src/logging.rs:22:7
[INFO] [stderr]    |
[INFO] [stderr] 22 | trait IntoLoggingIterator {
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `iterators_extended` (lib) generated 3 warnings
[INFO] [stderr] warning: unused variable: `mapped`
[INFO] [stderr]    --> src/stateful_threaded.rs:203:13
[INFO] [stderr]     |
[INFO] [stderr] 203 |         let mapped = values
[INFO] [stderr]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_mapped`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `iterators_extended` (lib test) generated 1 warning (run `cargo fix --lib -p iterators_extended --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/iterators_extended-0f979925d945f28c)
[INFO] [stdout] test bucket::tests::test_bucket_arr ... ok
[INFO] [stdout] test bucket::tests::test_bucket_vec ... ok
[INFO] [stdout] test interleave::tests::test1 ... ok
[INFO] [stdout] test buffered::tests::test_iter ... ok
[INFO] [stdout] test bucket::tests::test_bucket_result ... ok
[INFO] [stdout] test interleave::tests::test2 ... ok
[INFO] [stdout] test stateful::tests::test_fib ... ok
[INFO] [stdout] test stateful::tests::test_simple_stateful ... ok
[INFO] [stdout] test interleave::tests::test3 ... ok
[INFO] [stdout] test stateful_threaded::tests::test_worker ... ok
[INFO] [stdout] test threaded::tests::test_worker ... ok
[INFO] [stdout] test threaded::tests::test_iter ... ok
[INFO] [stdout] test logging::tests::test ... ok
[INFO] [stdout] test stateful_threaded::tests::test_iterator ... ok
[INFO] [stdout] test stateful::tests::test_reuse_alloc has been running for over 60 seconds
[INFO] [stdout] test stateful_threaded::tests::test_iterator_array has been running for over 60 seconds
[INFO] [stdout] test stateful_threaded::tests::test_iterator_array ... ok
[INFO] [stderr]    Doc-tests iterators_extended
[INFO] [stdout] test stateful::tests::test_reuse_alloc ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 89.16s
[INFO] [stdout] 
[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" "fb785ebebed1b1a6e8fe11f44a941bbcb13b6051240204a8068cad58e57bb75f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb785ebebed1b1a6e8fe11f44a941bbcb13b6051240204a8068cad58e57bb75f", kill_on_drop: false }`
[INFO] [stdout] fb785ebebed1b1a6e8fe11f44a941bbcb13b6051240204a8068cad58e57bb75f