[INFO] updating cached repository aoikonomopoulos/subdiff
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/aoikonomopoulos/subdiff
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/aoikonomopoulos/subdiff" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/aoikonomopoulos/subdiff"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/aoikonomopoulos/subdiff'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aoikonomopoulos/subdiff" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/aoikonomopoulos/subdiff"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/aoikonomopoulos/subdiff'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9793cb6ac6dd0afb94b3fdc14a7eab73f7dcd2d4
[INFO] sha for GitHub repo aoikonomopoulos/subdiff: 9793cb6ac6dd0afb94b3fdc14a7eab73f7dcd2d4
[INFO] validating manifest of aoikonomopoulos/subdiff on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of aoikonomopoulos/subdiff on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing aoikonomopoulos/subdiff
[INFO] finished frobbing aoikonomopoulos/subdiff
[INFO] frobbed toml for aoikonomopoulos/subdiff written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/aoikonomopoulos/subdiff/Cargo.toml
[INFO] started frobbing aoikonomopoulos/subdiff
[INFO] finished frobbing aoikonomopoulos/subdiff
[INFO] frobbed toml for aoikonomopoulos/subdiff written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/aoikonomopoulos/subdiff/Cargo.toml
[INFO] crate aoikonomopoulos/subdiff already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking aoikonomopoulos/subdiff against try#f45cc3094ee337acd688771b9234318046b0572d for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-2/try#f45cc3094ee337acd688771b9234318046b0572d:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/aoikonomopoulos/subdiff:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 14f9f05a33346e7f65d4666acbd9a8a1e68457b33bfa3a979c262cdc2070315e
[INFO] running `"docker" "start" "-a" "14f9f05a33346e7f65d4666acbd9a8a1e68457b33bfa3a979c262cdc2070315e"`
[INFO] [stderr]     Checking random v0.12.2
[INFO] [stderr]     Checking rayon-core v1.4.0
[INFO] [stderr]     Checking subdiff v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Checking temporary v0.6.3
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hunked.rs:422:31
[INFO] [stderr]     |
[INFO] [stderr] 422 |         CollectingCommonsTail(mut hunk, _, _) => hunk,
[INFO] [stderr]     |                               ----^^^^
[INFO] [stderr]     |                               |
[INFO] [stderr]     |                               help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Checking rayon v1.0.1
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hunked.rs:422:31
[INFO] [stderr]     |
[INFO] [stderr] 422 |         CollectingCommonsTail(mut hunk, _, _) => hunk,
[INFO] [stderr]     |                               ----^^^^
[INFO] [stderr]     |                               |
[INFO] [stderr]     |                               help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.76s
[INFO] running `"docker" "inspect" "14f9f05a33346e7f65d4666acbd9a8a1e68457b33bfa3a979c262cdc2070315e"`
[INFO] running `"docker" "rm" "-f" "14f9f05a33346e7f65d4666acbd9a8a1e68457b33bfa3a979c262cdc2070315e"`
[INFO] [stdout] 14f9f05a33346e7f65d4666acbd9a8a1e68457b33bfa3a979c262cdc2070315e