[INFO] updating cached repository archer884/unwhiten
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/archer884/unwhiten
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/archer884/unwhiten" "work/ex/beta-1.37-6/sources/1.36.0/gh/archer884/unwhiten"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/archer884/unwhiten'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/archer884/unwhiten" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/archer884/unwhiten"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/archer884/unwhiten'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9d804cc8d1677762fcbb28000668a98afe50fcb3
[INFO] sha for GitHub repo archer884/unwhiten: 9d804cc8d1677762fcbb28000668a98afe50fcb3
[INFO] validating manifest of archer884/unwhiten on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of archer884/unwhiten on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing archer884/unwhiten
[INFO] finished frobbing archer884/unwhiten
[INFO] frobbed toml for archer884/unwhiten written to work/ex/beta-1.37-6/sources/1.36.0/gh/archer884/unwhiten/Cargo.toml
[INFO] started frobbing archer884/unwhiten
[INFO] finished frobbing archer884/unwhiten
[INFO] frobbed toml for archer884/unwhiten written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/archer884/unwhiten/Cargo.toml
[INFO] crate archer884/unwhiten already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/archer884/unwhiten/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[INFO] the lockfile is outdated, regenerating it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" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing archer884/unwhiten against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/archer884/unwhiten:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 67468e9e3d603c15aa443197bdf53fe1d0d37d252ce80804286dbc9a13aa10fd
[INFO] running `"docker" "start" "-a" "67468e9e3d603c15aa443197bdf53fe1d0d37d252ce80804286dbc9a13aa10fd"`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling quine-mc_cluskey v0.2.4
[INFO] [stderr]    Compiling toml v0.1.30
[INFO] [stderr]    Compiling clippy v0.0.65
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr] error[E0463]: can't find crate for `collections`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/clippy-0.0.65/src/lib.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | extern crate collections;
[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 `clippy`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "67468e9e3d603c15aa443197bdf53fe1d0d37d252ce80804286dbc9a13aa10fd"`
[INFO] running `"docker" "rm" "-f" "67468e9e3d603c15aa443197bdf53fe1d0d37d252ce80804286dbc9a13aa10fd"`
[INFO] [stdout] 67468e9e3d603c15aa443197bdf53fe1d0d37d252ce80804286dbc9a13aa10fd