[INFO] updating cached repository https://github.com/archer884/check
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5ed4f86498993d67cd6d8e167b751688af396ea1
[INFO] testing archer884/check against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcher884%2Fcheck" "work/builds/worker-6/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/archer884/check on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/archer884/check
[INFO] finished tweaking git repo https://github.com/archer884/check
[INFO] tweaked toml for git repo https://github.com/archer884/check written to work/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/archer884/check already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /big/crater/work/builds/worker-6/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/nikomatsakis/rayon.git`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 00f230bdeef8266631260024e7180682dfa1e20de9ae901b7f698ba72403f0b1
[INFO] running `"docker" "start" "-a" "00f230bdeef8266631260024e7180682dfa1e20de9ae901b7f698ba72403f0b1"`
[INFO] [stderr]    Compiling rayon-core v1.6.0 (https://github.com/nikomatsakis/rayon.git#68edcf6d)
[INFO] [stderr]    Compiling rayon v1.2.0 (https://github.com/nikomatsakis/rayon.git#68edcf6d)
[INFO] [stderr]    Compiling check v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `rayon::par_iter`
[INFO] [stderr]   --> src/main.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 | use rayon::par_iter::{IntoParallelIterator, ParallelIterator};
[INFO] [stderr]    |            ^^^^^^^^ could not find `par_iter` in `rayon`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `into_par_iter` found for type `std::vec::Vec<input::Line>` in the current scope
[INFO] [stderr]   --> src/main.rs:52:11
[INFO] [stderr]    |
[INFO] [stderr] 52 |     input.into_par_iter()
[INFO] [stderr]    |           ^^^^^^^^^^^^^ method not found in `std::vec::Vec<input::Line>`
[INFO] [stderr]    |
[INFO] [stderr]    = help: items from traits can only be used if the trait is in scope
[INFO] [stderr] help: the following trait is implemented but not in scope, perhaps add a `use` for it:
[INFO] [stderr]    |
[INFO] [stderr] 8  | use rayon::iter::IntoParallelIterator;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `check`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "00f230bdeef8266631260024e7180682dfa1e20de9ae901b7f698ba72403f0b1"`
[INFO] running `"docker" "rm" "-f" "00f230bdeef8266631260024e7180682dfa1e20de9ae901b7f698ba72403f0b1"`
[INFO] [stdout] 00f230bdeef8266631260024e7180682dfa1e20de9ae901b7f698ba72403f0b1