[INFO] cloning repository https://github.com/FeanorTheElf/Parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FeanorTheElf/Parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFeanorTheElf%2FParser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFeanorTheElf%2FParser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 92590cb4508b3bfc6c6d73b16dab4e135f9f823b
[INFO] documenting FeanorTheElf/Parser against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFeanorTheElf%2FParser" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FeanorTheElf/Parser on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FeanorTheElf/Parser
[INFO] finished tweaking git repo https://github.com/FeanorTheElf/Parser
[INFO] tweaked toml for git repo https://github.com/FeanorTheElf/Parser written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/FeanorTheElf/Parser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8205a738154a832361dc5578872282ae9312e2ecae04903e98db4c9f581f787e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8205a738154a832361dc5578872282ae9312e2ecae04903e98db4c9f581f787e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8205a738154a832361dc5578872282ae9312e2ecae04903e98db4c9f581f787e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8205a738154a832361dc5578872282ae9312e2ecae04903e98db4c9f581f787e", kill_on_drop: false }`
[INFO] [stdout] 8205a738154a832361dc5578872282ae9312e2ecae04903e98db4c9f581f787e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "RUSTDOCFLAGS=--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 018d50ba1423435e7f9a448ff8b1c4a7c7e12b9b316073ffbcc071009adee276
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "018d50ba1423435e7f9a448ff8b1c4a7c7e12b9b316073ffbcc071009adee276", kill_on_drop: false }`
[INFO] [stderr]     Checking feanor_la v0.1.0 (https://github.com/feanorTheElf/FeanorLA.git#c4867692)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/feanorla-b6e14b5a03f52c0b/c486769/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/feanorla-b6e14b5a03f52c0b/c486769/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(array_value_iter)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/feanorla-b6e14b5a03f52c0b/c486769/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(const_generics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: arrays only have std trait implementations for lengths 0..=32
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/feanorla-b6e14b5a03f52c0b/c486769/src/matrix.rs:212:46
[INFO] [stdout]     |
[INFO] [stdout] 212 |         let data = std::array::IntoIter::new(array).flat_map(|row| std::array::IntoIter::new(row)).collect::<Vec<T>>().into_boxed_slice();
[INFO] [stdout]     |                                              ^^^^^ the trait `std::array::LengthAtMost32` is not implemented for `[[T; C]; R]`
[INFO] [stdout]     |
[INFO] [stdout]     = note: required by `std::array::IntoIter::<T, N>::new`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `flat_map` found for struct `std::array::IntoIter<[T; C], R>` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/feanorla-b6e14b5a03f52c0b/c486769/src/matrix.rs:212:53
[INFO] [stdout]     |
[INFO] [stdout] 212 |           let data = std::array::IntoIter::new(array).flat_map(|row| std::array::IntoIter::new(row)).collect::<Vec<T>>().into_boxed_slice();
[INFO] [stdout]     |                                                       ^^^^^^^^ method not found in `std::array::IntoIter<[T; C], R>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: the method `flat_map` exists but the following trait bounds were not satisfied:
[INFO] [stdout]             `[[T; C]; R]: std::array::LengthAtMost32`
[INFO] [stdout]             which is required by `std::array::IntoIter<[T; C], R>: std::iter::Iterator`
[INFO] [stdout]             `std::array::IntoIter<[T; C], R>: std::iter::Iterator`
[INFO] [stdout]             which is required by `&mut std::array::IntoIter<[T; C], R>: std::iter::Iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: arrays only have std trait implementations for lengths 0..=32
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/feanorla-b6e14b5a03f52c0b/c486769/src/matrix.rs:212:20
[INFO] [stdout]     |
[INFO] [stdout] 212 |         let data = std::array::IntoIter::new(array).flat_map(|row| std::array::IntoIter::new(row)).collect::<Vec<T>>().into_boxed_slice();
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::array::LengthAtMost32` is not implemented for `[[T; C]; R]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `feanor_la`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "018d50ba1423435e7f9a448ff8b1c4a7c7e12b9b316073ffbcc071009adee276", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "018d50ba1423435e7f9a448ff8b1c4a7c7e12b9b316073ffbcc071009adee276", kill_on_drop: false }`
[INFO] [stdout] 018d50ba1423435e7f9a448ff8b1c4a7c7e12b9b316073ffbcc071009adee276