[INFO] cloning repository https://github.com/aqulu/mode-recognizer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aqulu/mode-recognizer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faqulu%2Fmode-recognizer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faqulu%2Fmode-recognizer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ab8ac6838281a57e6a7d8dbd73cf2937393184f
[INFO] testing aqulu/mode-recognizer against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faqulu%2Fmode-recognizer" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aqulu/mode-recognizer on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aqulu/mode-recognizer
[INFO] finished tweaking git repo https://github.com/aqulu/mode-recognizer
[INFO] tweaked toml for git repo https://github.com/aqulu/mode-recognizer written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/aqulu/mode-recognizer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5bd34a910cc8673f67fba897382ce520f03375699844e6fd18a8e8a4a4d59615
[INFO] running `Command { std: "docker" "start" "-a" "5bd34a910cc8673f67fba897382ce520f03375699844e6fd18a8e8a4a4d59615", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5bd34a910cc8673f67fba897382ce520f03375699844e6fd18a8e8a4a4d59615", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bd34a910cc8673f67fba897382ce520f03375699844e6fd18a8e8a4a4d59615", kill_on_drop: false }`
[INFO] [stdout] 5bd34a910cc8673f67fba897382ce520f03375699844e6fd18a8e8a4a4d59615
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3840d9e2496569fa62bd4fab618fdba156bf1b8af97ce2096c5304c0e70d6dc2
[INFO] running `Command { std: "docker" "start" "-a" "3840d9e2496569fa62bd4fab618fdba156bf1b8af97ce2096c5304c0e70d6dc2", kill_on_drop: false }`
[INFO] [stderr]    Compiling mode_recognizer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stdout]   --> src/mode/mod.rs:18:46
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 let mut note_iterator = note::NOTE_SCALE.into_iter().cycle().skip(position);
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 let mut note_iterator = note::NOTE_SCALE.iter().cycle().skip(position);
[INFO] [stdout]    |                                                          ^^^^
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 let mut note_iterator = IntoIterator::into_iter(note::NOTE_SCALE).cycle().skip(position);
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^                ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "3840d9e2496569fa62bd4fab618fdba156bf1b8af97ce2096c5304c0e70d6dc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3840d9e2496569fa62bd4fab618fdba156bf1b8af97ce2096c5304c0e70d6dc2", kill_on_drop: false }`
[INFO] [stdout] 3840d9e2496569fa62bd4fab618fdba156bf1b8af97ce2096c5304c0e70d6dc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00f45b1e02f959e724aacdccf31b1741d7afdf7a3478c330464321719934b2a4
[INFO] running `Command { std: "docker" "start" "-a" "00f45b1e02f959e724aacdccf31b1741d7afdf7a3478c330464321719934b2a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling mode_recognizer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stdout]   --> src/mode/mod.rs:18:46
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 let mut note_iterator = note::NOTE_SCALE.into_iter().cycle().skip(position);
[INFO] [stdout]    |                                                          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 let mut note_iterator = note::NOTE_SCALE.iter().cycle().skip(position);
[INFO] [stdout]    |                                                          ^^^^
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 18 |                 let mut note_iterator = IntoIterator::into_iter(note::NOTE_SCALE).cycle().skip(position);
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^                ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "00f45b1e02f959e724aacdccf31b1741d7afdf7a3478c330464321719934b2a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00f45b1e02f959e724aacdccf31b1741d7afdf7a3478c330464321719934b2a4", kill_on_drop: false }`
[INFO] [stdout] 00f45b1e02f959e724aacdccf31b1741d7afdf7a3478c330464321719934b2a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7946b2a1739835839cc0e40df155e846741f040a68ffa1fe7d54e1e0c0f20c3d
[INFO] running `Command { std: "docker" "start" "-a" "7946b2a1739835839cc0e40df155e846741f040a68ffa1fe7d54e1e0c0f20c3d", kill_on_drop: false }`
[INFO] [stderr] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stderr]   --> src/mode/mod.rs:18:46
[INFO] [stderr]    |
[INFO] [stderr] 18 |                 let mut note_iterator = note::NOTE_SCALE.into_iter().cycle().skip(position);
[INFO] [stderr]    |                                                          ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]    = warning: this changes meaning in Rust 2021
[INFO] [stderr]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stderr]    |
[INFO] [stderr] 18 |                 let mut note_iterator = note::NOTE_SCALE.iter().cycle().skip(position);
[INFO] [stderr]    |                                                          ^^^^
[INFO] [stderr] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stderr]    |
[INFO] [stderr] 18 |                 let mut note_iterator = IntoIterator::into_iter(note::NOTE_SCALE).cycle().skip(position);
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^                ^
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mode_recognizer-19c94bbb3aaff69e)
[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" "7946b2a1739835839cc0e40df155e846741f040a68ffa1fe7d54e1e0c0f20c3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7946b2a1739835839cc0e40df155e846741f040a68ffa1fe7d54e1e0c0f20c3d", kill_on_drop: false }`
[INFO] [stdout] 7946b2a1739835839cc0e40df155e846741f040a68ffa1fe7d54e1e0c0f20c3d