[INFO] fetching crate breadth-first-zip 0.3.0...
[INFO] checking breadth-first-zip-0.3.0 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate breadth-first-zip 0.3.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate breadth-first-zip 0.3.0 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate breadth-first-zip 0.3.0
[INFO] finished tweaking crates.io crate breadth-first-zip 0.3.0
[INFO] tweaked toml for crates.io crate breadth-first-zip 0.3.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quickcheck v1.0.3
[INFO] [stderr]   Downloaded breadth-first-zip-macros v0.3.0
[INFO] [stderr]   Downloaded reiterator v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4541b4e9c1b35757ca4be3b0ad2cf8941be15fb54b54d9afecd05ae709f9cef9
[INFO] running `Command { std: "docker" "start" "-a" "4541b4e9c1b35757ca4be3b0ad2cf8941be15fb54b54d9afecd05ae709f9cef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4541b4e9c1b35757ca4be3b0ad2cf8941be15fb54b54d9afecd05ae709f9cef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4541b4e9c1b35757ca4be3b0ad2cf8941be15fb54b54d9afecd05ae709f9cef9", kill_on_drop: false }`
[INFO] [stdout] 4541b4e9c1b35757ca4be3b0ad2cf8941be15fb54b54d9afecd05ae709f9cef9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd0bcf6b74dde940a5c693b8a516346d0189160f0a95897de2f49a123af68471
[INFO] running `Command { std: "docker" "start" "-a" "bd0bcf6b74dde940a5c693b8a516346d0189160f0a95897de2f49a123af68471", kill_on_drop: false }`
[INFO] [stderr]    Compiling breadth-first-zip-macros v0.3.0
[INFO] [stderr]    Compiling reiterator v0.3.0
[INFO] [stderr]    Compiling breadth-first-zip v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:67:1
[INFO] [stdout]    |
[INFO] [stdout] 67 | breadth_first_zip_macros::implement_flatten!();
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | expected type parameter `B`, found `(_,)`
[INFO] [stdout]    | this expression has type `B`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected type parameter `B`
[INFO] [stdout]                        found tuple `(_,)`
[INFO] [stdout]    = note: this error originates in the macro `breadth_first_zip_macros::implement_flatten` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get` found for type `usize` in the current scope
[INFO] [stdout]    --> src/lib.rs:149:61
[INFO] [stdout]     |
[INFO] [stdout] 149 |                 .next(index_sum.checked_sub(self.iter.index.get())?)
[INFO] [stdout]     |                                                             ^^^ method not found in `usize`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 45  + use core::slice::SliceIndex;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get` found for type `usize` in the current scope
[INFO] [stdout]    --> src/lib.rs:153:30
[INFO] [stdout]     |
[INFO] [stdout] 153 |             (self.iter.index.get() < index_sum).then(|| self.iter.next())??; // Comparison is just an optimization, not logically necessary
[INFO] [stdout]     |                              ^^^ method not found in `usize`
[INFO] [stdout]    --> /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/core/src/slice/index.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout]     = note: the method is available for `usize` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 45  + use core::slice::SliceIndex;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:230:1
[INFO] [stdout]     |
[INFO] [stdout] 230 | breadth_first_zip_macros::implement!(); // Implement traits for (A,), (A, B), (A, B, C), (A, B, C, D), ...
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     | |
[INFO] [stdout]     | expected type parameter `A`, found `(_,)`
[INFO] [stdout]     | this expression has type `A`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected type parameter `A`
[INFO] [stdout]                         found tuple `(_,)`
[INFO] [stdout]     = note: this error originates in the macro `breadth_first_zip_macros::implement` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:67:1
[INFO] [stdout]    |
[INFO] [stdout] 67 | breadth_first_zip_macros::implement_flatten!();
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | expected type parameter `B`, found `(_,)`
[INFO] [stdout]    | this expression has type `B`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected type parameter `B`
[INFO] [stdout]                        found tuple `(_,)`
[INFO] [stdout]    = note: this error originates in the macro `breadth_first_zip_macros::implement_flatten` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get` found for type `usize` in the current scope
[INFO] [stdout]    --> src/lib.rs:149:61
[INFO] [stdout]     |
[INFO] [stdout] 149 |                 .next(index_sum.checked_sub(self.iter.index.get())?)
[INFO] [stdout]     |                                                             ^^^ method not found in `usize`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 45  + use std::slice::SliceIndex;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get` found for type `usize` in the current scope
[INFO] [stdout]    --> src/lib.rs:153:30
[INFO] [stdout]     |
[INFO] [stdout] 153 |             (self.iter.index.get() < index_sum).then(|| self.iter.next())??; // Comparison is just an optimization, not logically necessary
[INFO] [stdout]     |                              ^^^ method not found in `usize`
[INFO] [stdout]    --> /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/core/src/slice/index.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout]     = note: the method is available for `usize` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 45  + use std::slice::SliceIndex;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:230:1
[INFO] [stdout]     |
[INFO] [stdout] 230 | breadth_first_zip_macros::implement!(); // Implement traits for (A,), (A, B), (A, B, C), (A, B, C, D), ...
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     | |
[INFO] [stdout]     | expected type parameter `A`, found `(_,)`
[INFO] [stdout]     | this expression has type `A`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected type parameter `A`
[INFO] [stdout]                         found tuple `(_,)`
[INFO] [stdout]     = note: this error originates in the macro `breadth_first_zip_macros::implement` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `breadth-first-zip` (lib) due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `breadth-first-zip` (lib test) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "bd0bcf6b74dde940a5c693b8a516346d0189160f0a95897de2f49a123af68471", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd0bcf6b74dde940a5c693b8a516346d0189160f0a95897de2f49a123af68471", kill_on_drop: false }`
[INFO] [stdout] bd0bcf6b74dde940a5c693b8a516346d0189160f0a95897de2f49a123af68471
[INFO] checking breadth-first-zip-0.3.0 against nightly-2024-02-05+rustflags=-Dunexpected_cfgs+cargoflags=-Zcheck-cfg for check-cfg
[INFO] extracting crate breadth-first-zip 0.3.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate breadth-first-zip 0.3.0 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate breadth-first-zip 0.3.0
[INFO] finished tweaking crates.io crate breadth-first-zip 0.3.0
[INFO] tweaked toml for crates.io crate breadth-first-zip 0.3.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dde22f091f2ecb6d5601c0e6e77567330e942e8ba4dbac5e6bee74805ec895ee
[INFO] running `Command { std: "docker" "start" "-a" "dde22f091f2ecb6d5601c0e6e77567330e942e8ba4dbac5e6bee74805ec895ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dde22f091f2ecb6d5601c0e6e77567330e942e8ba4dbac5e6bee74805ec895ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dde22f091f2ecb6d5601c0e6e77567330e942e8ba4dbac5e6bee74805ec895ee", kill_on_drop: false }`
[INFO] [stdout] dde22f091f2ecb6d5601c0e6e77567330e942e8ba4dbac5e6bee74805ec895ee
[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 -Dunexpected_cfgs" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zcheck-cfg", kill_on_drop: false }`
[INFO] [stdout] 431e6b705e05eba7356dd523d1017d08be7fcba9f7ce07cd58b0fdc063da3e4a
[INFO] running `Command { std: "docker" "start" "-a" "431e6b705e05eba7356dd523d1017d08be7fcba9f7ce07cd58b0fdc063da3e4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling reiterator v0.3.0
[INFO] [stderr]    Compiling breadth-first-zip-macros v0.3.0
[INFO] [stderr]    Compiling breadth-first-zip v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:67:1
[INFO] [stdout]    |
[INFO] [stdout] 67 | breadth_first_zip_macros::implement_flatten!();
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | expected type parameter `B`, found `(_,)`
[INFO] [stdout]    | this expression has type `B`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected type parameter `B`
[INFO] [stdout]                        found tuple `(_,)`
[INFO] [stdout]    = note: this error originates in the macro `breadth_first_zip_macros::implement_flatten` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get` found for type `usize` in the current scope
[INFO] [stdout]    --> src/lib.rs:149:61
[INFO] [stdout]     |
[INFO] [stdout] 149 |                 .next(index_sum.checked_sub(self.iter.index.get())?)
[INFO] [stdout]     |                                                             ^^^ method not found in `usize`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 45  + use core::slice::SliceIndex;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get` found for type `usize` in the current scope
[INFO] [stdout]    --> src/lib.rs:153:30
[INFO] [stdout]     |
[INFO] [stdout] 153 |             (self.iter.index.get() < index_sum).then(|| self.iter.next())??; // Comparison is just an optimization, not logically necessary
[INFO] [stdout]     |                              ^^^ method not found in `usize`
[INFO] [stdout]    --> /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/core/src/slice/index.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout]     = note: the method is available for `usize` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 45  + use core::slice::SliceIndex;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:230:1
[INFO] [stdout]     |
[INFO] [stdout] 230 | breadth_first_zip_macros::implement!(); // Implement traits for (A,), (A, B), (A, B, C), (A, B, C, D), ...
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     | |
[INFO] [stdout]     | expected type parameter `A`, found `(_,)`
[INFO] [stdout]     | this expression has type `A`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected type parameter `A`
[INFO] [stdout]                         found tuple `(_,)`
[INFO] [stdout]     = note: this error originates in the macro `breadth_first_zip_macros::implement` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:67:1
[INFO] [stdout]    |
[INFO] [stdout] 67 | breadth_first_zip_macros::implement_flatten!();
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | expected type parameter `B`, found `(_,)`
[INFO] [stdout]    | this expression has type `B`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected type parameter `B`
[INFO] [stdout]                        found tuple `(_,)`
[INFO] [stdout]    = note: this error originates in the macro `breadth_first_zip_macros::implement_flatten` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get` found for type `usize` in the current scope
[INFO] [stdout]    --> src/lib.rs:149:61
[INFO] [stdout]     |
[INFO] [stdout] 149 |                 .next(index_sum.checked_sub(self.iter.index.get())?)
[INFO] [stdout]     |                                                             ^^^ method not found in `usize`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 45  + use std::slice::SliceIndex;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `get` found for type `usize` in the current scope
[INFO] [stdout]    --> src/lib.rs:153:30
[INFO] [stdout]     |
[INFO] [stdout] 153 |             (self.iter.index.get() < index_sum).then(|| self.iter.next())??; // Comparison is just an optimization, not logically necessary
[INFO] [stdout]     |                              ^^^ method not found in `usize`
[INFO] [stdout]    --> /rustc/268dbbbc4b3fd71c5f360a4d0728295252430b5b/library/core/src/slice/index.rs:171:8
[INFO] [stdout]     |
[INFO] [stdout]     = note: the method is available for `usize` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 45  + use std::slice::SliceIndex;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:230:1
[INFO] [stdout]     |
[INFO] [stdout] 230 | breadth_first_zip_macros::implement!(); // Implement traits for (A,), (A, B), (A, B, C), (A, B, C, D), ...
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     | |
[INFO] [stdout]     | expected type parameter `A`, found `(_,)`
[INFO] [stdout]     | this expression has type `A`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected type parameter `A`
[INFO] [stdout]                         found tuple `(_,)`
[INFO] [stdout]     = note: this error originates in the macro `breadth_first_zip_macros::implement` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `breadth-first-zip` (lib) due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `breadth-first-zip` (lib test) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "431e6b705e05eba7356dd523d1017d08be7fcba9f7ce07cd58b0fdc063da3e4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "431e6b705e05eba7356dd523d1017d08be7fcba9f7ce07cd58b0fdc063da3e4a", kill_on_drop: false }`
[INFO] [stdout] 431e6b705e05eba7356dd523d1017d08be7fcba9f7ce07cd58b0fdc063da3e4a
