[INFO] updating cached repository quicktocuv/docs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/quicktocuv/docs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/quicktocuv/docs" "work/ex/clippy-test-run/sources/stable/gh/quicktocuv/docs"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/quicktocuv/docs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/quicktocuv/docs" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/quicktocuv/docs"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/quicktocuv/docs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 98d6a1a1180ffce3db15b1e60472537a53292618
[INFO] sha for GitHub repo quicktocuv/docs: 98d6a1a1180ffce3db15b1e60472537a53292618
[INFO] validating manifest of quicktocuv/docs on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of quicktocuv/docs on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing quicktocuv/docs
[INFO] finished frobbing quicktocuv/docs
[INFO] frobbed toml for quicktocuv/docs written to work/ex/clippy-test-run/sources/stable/gh/quicktocuv/docs/Cargo.toml
[INFO] started frobbing quicktocuv/docs
[INFO] finished frobbing quicktocuv/docs
[INFO] frobbed toml for quicktocuv/docs written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/quicktocuv/docs/Cargo.toml
[INFO] crate quicktocuv/docs has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting quicktocuv/docs against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/quicktocuv/docs:/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=forbid" "-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" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] cb8ffb6a4b1295e3d53393400b819a5798d0cd02770bc268bf088deb43705f9a
[INFO] running `"docker" "start" "-a" "cb8ffb6a4b1295e3d53393400b819a5798d0cd02770bc268bf088deb43705f9a"`
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]     Checking sequence_trie v0.3.6
[INFO] [stderr]     Checking strum v0.11.0
[INFO] [stderr]     Checking is-match v0.1.0
[INFO] [stderr]    Compiling rfcs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]    Compiling pest v2.0.2
[INFO] [stderr]     Checking itertools v0.7.9
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr] error[E0463]: can't find crate for `walkdir`
[INFO] [stderr]  --> build.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | extern crate walkdir;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: Could not compile `rfcs`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "cb8ffb6a4b1295e3d53393400b819a5798d0cd02770bc268bf088deb43705f9a"`
[INFO] running `"docker" "rm" "-f" "cb8ffb6a4b1295e3d53393400b819a5798d0cd02770bc268bf088deb43705f9a"`
[INFO] [stdout] cb8ffb6a4b1295e3d53393400b819a5798d0cd02770bc268bf088deb43705f9a