[INFO] fetching crate reduce 0.1.4...
[INFO] testing reduce-0.1.4 against 1.59.0 for beta-1.60-1
[INFO] extracting crate reduce 0.1.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate reduce 0.1.4 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate reduce 0.1.4
[INFO] finished tweaking crates.io crate reduce 0.1.4
[INFO] tweaked toml for crates.io crate reduce 0.1.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b12ac930de42f4a0fa89cfa5ae42d670dcdfc5f0c5bf93366478188baaf6be8b
[INFO] running `Command { std: "docker" "start" "-a" "b12ac930de42f4a0fa89cfa5ae42d670dcdfc5f0c5bf93366478188baaf6be8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b12ac930de42f4a0fa89cfa5ae42d670dcdfc5f0c5bf93366478188baaf6be8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b12ac930de42f4a0fa89cfa5ae42d670dcdfc5f0c5bf93366478188baaf6be8b", kill_on_drop: false }`
[INFO] [stdout] b12ac930de42f4a0fa89cfa5ae42d670dcdfc5f0c5bf93366478188baaf6be8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c8869fe270169235475ab5c0a18a31e46f646d1046e1e72a94f0bcf14f0c05dc
[INFO] running `Command { std: "docker" "start" "-a" "c8869fe270169235475ab5c0a18a31e46f646d1046e1e72a94f0bcf14f0c05dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling reduce v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "c8869fe270169235475ab5c0a18a31e46f646d1046e1e72a94f0bcf14f0c05dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8869fe270169235475ab5c0a18a31e46f646d1046e1e72a94f0bcf14f0c05dc", kill_on_drop: false }`
[INFO] [stdout] c8869fe270169235475ab5c0a18a31e46f646d1046e1e72a94f0bcf14f0c05dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1459ce3481bac27fc07db0e4050204a3279933a3a49004ad0476bdcb811997a6
[INFO] running `Command { std: "docker" "start" "-a" "1459ce3481bac27fc07db0e4050204a3279933a3a49004ad0476bdcb811997a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling reduce v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]  --> tests/test.rs:6:29
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let sum = v.into_iter().reduce(|a, b| a + b);
[INFO] [stdout]   |                             ^^^^^^ multiple `reduce` found
[INFO] [stdout]   |
[INFO] [stdout]   = note: candidate #1 is defined in an impl of the trait `Reduce` for the type `I`
[INFO] [stdout]   = note: candidate #2 is defined in an impl of the trait `Iterator` for the type `std::vec::IntoIter<T, A>`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let sum = Reduce::reduce(v.into_iter(), |a, b| a + b);
[INFO] [stdout]   |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let sum = Iterator::reduce(v.into_iter(), |a, b| a + b);
[INFO] [stdout]   |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]   --> tests/test.rs:13:29
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let sum = v.into_iter().reduce(|a, b| a + b);
[INFO] [stdout]    |                             ^^^^^^ multiple `reduce` found
[INFO] [stdout]    |
[INFO] [stdout]    = note: candidate #1 is defined in an impl of the trait `Reduce` for the type `I`
[INFO] [stdout]    = note: candidate #2 is defined in an impl of the trait `Iterator` for the type `std::vec::IntoIter<T, A>`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let sum = Reduce::reduce(v.into_iter(), |a, b| a + b);
[INFO] [stdout]    |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let sum = Iterator::reduce(v.into_iter(), |a, b| a + b);
[INFO] [stdout]    |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]   --> tests/test.rs:20:29
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let sum = v.into_iter().reduce(|a, b| a + b);
[INFO] [stdout]    |                             ^^^^^^ multiple `reduce` found
[INFO] [stdout]    |
[INFO] [stdout]    = note: candidate #1 is defined in an impl of the trait `Reduce` for the type `I`
[INFO] [stdout]    = note: candidate #2 is defined in an impl of the trait `Iterator` for the type `std::vec::IntoIter<T, A>`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let sum = Reduce::reduce(v.into_iter(), |a, b| a + b);
[INFO] [stdout]    |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let sum = Iterator::reduce(v.into_iter(), |a, b| a + b);
[INFO] [stdout]    |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `reduce::Reduce`
[INFO] [stdout]  --> tests/test.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use reduce::Reduce;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `reduce` due to 4 previous errors; 1 warning emitted
[INFO] [stdout] error: aborting due to 3 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1459ce3481bac27fc07db0e4050204a3279933a3a49004ad0476bdcb811997a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1459ce3481bac27fc07db0e4050204a3279933a3a49004ad0476bdcb811997a6", kill_on_drop: false }`
[INFO] [stdout] 1459ce3481bac27fc07db0e4050204a3279933a3a49004ad0476bdcb811997a6