[INFO] updating cached repository archer884/check
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/archer884/check
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/archer884/check" "work/ex/beta-1.38-1/sources/1.37.0/gh/archer884/check"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/archer884/check'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/archer884/check" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/archer884/check"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/archer884/check'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5ed4f86498993d67cd6d8e167b751688af396ea1
[INFO] sha for GitHub repo archer884/check: 5ed4f86498993d67cd6d8e167b751688af396ea1
[INFO] validating manifest of archer884/check on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of archer884/check on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing archer884/check
[INFO] finished frobbing archer884/check
[INFO] frobbed toml for archer884/check written to work/ex/beta-1.38-1/sources/1.37.0/gh/archer884/check/Cargo.toml
[INFO] started frobbing archer884/check
[INFO] finished frobbing archer884/check
[INFO] frobbed toml for archer884/check written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/archer884/check/Cargo.toml
[INFO] crate archer884/check already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/archer884/check/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/nikomatsakis/rayon.git`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/nikomatsakis/rayon.git`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing archer884/check against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/archer884/check:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 30de557aafc23e7051be2d95dcc1fcd1966b82d296b47520b9c5cbd3f2bfcd22
[INFO] running `"docker" "start" "-a" "30de557aafc23e7051be2d95dcc1fcd1966b82d296b47520b9c5cbd3f2bfcd22"`
[INFO] [stderr]    Compiling rayon-core v1.6.0 (https://github.com/nikomatsakis/rayon.git#83b67e27)
[INFO] [stderr]    Compiling rayon v1.2.0 (https://github.com/nikomatsakis/rayon.git#83b67e27)
[INFO] [stderr]    Compiling check v0.1.0 (/opt/crater/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]    |           ^^^^^^^^^^^^^
[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" "30de557aafc23e7051be2d95dcc1fcd1966b82d296b47520b9c5cbd3f2bfcd22"`
[INFO] running `"docker" "rm" "-f" "30de557aafc23e7051be2d95dcc1fcd1966b82d296b47520b9c5cbd3f2bfcd22"`
[INFO] [stdout] 30de557aafc23e7051be2d95dcc1fcd1966b82d296b47520b9c5cbd3f2bfcd22