[INFO] updating cached repository appwiz/rust-algorithms
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/appwiz/rust-algorithms
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/appwiz/rust-algorithms" "work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/appwiz/rust-algorithms"`
[INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/appwiz/rust-algorithms'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/appwiz/rust-algorithms" "work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/appwiz/rust-algorithms"`
[INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/appwiz/rust-algorithms'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0d9dfca86e916aaedf72caa83db7dd3ecb9ca4b2
[INFO] sha for GitHub repo appwiz/rust-algorithms: 0d9dfca86e916aaedf72caa83db7dd3ecb9ca4b2
[INFO] validating manifest of appwiz/rust-algorithms on toolchain master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of appwiz/rust-algorithms on toolchain try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing appwiz/rust-algorithms
[INFO] finished frobbing appwiz/rust-algorithms
[INFO] frobbed toml for appwiz/rust-algorithms written to work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/appwiz/rust-algorithms/Cargo.toml
[INFO] started frobbing appwiz/rust-algorithms
[INFO] finished frobbing appwiz/rust-algorithms
[INFO] frobbed toml for appwiz/rust-algorithms written to work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/appwiz/rust-algorithms/Cargo.toml
[INFO] crate appwiz/rust-algorithms already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking appwiz/rust-algorithms against try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af for pr-61753
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61753/worker-1/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/appwiz/rust-algorithms:/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" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 91b36ece4a02684735a3be1d8b3c6728064779500e346a152a916c8aa96dce78
[INFO] running `"docker" "start" "-a" "91b36ece4a02684735a3be1d8b3c6728064779500e346a152a916c8aa96dce78"`
[INFO] [stderr]     Checking rust-algorithms v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "91b36ece4a02684735a3be1d8b3c6728064779500e346a152a916c8aa96dce78"`
[INFO] running `"docker" "rm" "-f" "91b36ece4a02684735a3be1d8b3c6728064779500e346a152a916c8aa96dce78"`
[INFO] [stdout] 91b36ece4a02684735a3be1d8b3c6728064779500e346a152a916c8aa96dce78