[INFO] updating cached repository craftytrickster/Dedupe-Contacts
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/craftytrickster/Dedupe-Contacts
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/craftytrickster/Dedupe-Contacts" "work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/craftytrickster/Dedupe-Contacts"`
[INFO] [stderr] Cloning into 'work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/craftytrickster/Dedupe-Contacts'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/craftytrickster/Dedupe-Contacts" "work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/gh/craftytrickster/Dedupe-Contacts"`
[INFO] [stderr] Cloning into 'work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/gh/craftytrickster/Dedupe-Contacts'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d5ec8b0c8ddc3f9d8b40121833b9d0ba19b10f7a
[INFO] sha for GitHub repo craftytrickster/Dedupe-Contacts: d5ec8b0c8ddc3f9d8b40121833b9d0ba19b10f7a
[INFO] validating manifest of craftytrickster/Dedupe-Contacts on toolchain master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+548add7f61bfcbe3bea3f5ccefb53c84da8fefe4-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of craftytrickster/Dedupe-Contacts on toolchain try#097e26225c5cc28d3042ad4c80eac7c488f78ee7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+097e26225c5cc28d3042ad4c80eac7c488f78ee7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing craftytrickster/Dedupe-Contacts
[INFO] finished frobbing craftytrickster/Dedupe-Contacts
[INFO] frobbed toml for craftytrickster/Dedupe-Contacts written to work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/craftytrickster/Dedupe-Contacts/Cargo.toml
[INFO] started frobbing craftytrickster/Dedupe-Contacts
[INFO] finished frobbing craftytrickster/Dedupe-Contacts
[INFO] frobbed toml for craftytrickster/Dedupe-Contacts written to work/ex/pr-60932/sources/try#097e26225c5cc28d3042ad4c80eac7c488f78ee7/gh/craftytrickster/Dedupe-Contacts/Cargo.toml
[INFO] crate craftytrickster/Dedupe-Contacts already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+548add7f61bfcbe3bea3f5ccefb53c84da8fefe4-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+097e26225c5cc28d3042ad4c80eac7c488f78ee7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking craftytrickster/Dedupe-Contacts against master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4 for pr-60932
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60932/worker-6/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60932/sources/master#548add7f61bfcbe3bea3f5ccefb53c84da8fefe4/gh/craftytrickster/Dedupe-Contacts:/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" "+548add7f61bfcbe3bea3f5ccefb53c84da8fefe4-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 988d02b7880a2b47984b7d6fb306ef73e34117bbc75f1a93bbf31dbf797f5152
[INFO] running `"docker" "start" "-a" "988d02b7880a2b47984b7d6fb306ef73e34117bbc75f1a93bbf31dbf797f5152"`
[INFO] [stderr]     Checking fst v0.3.0
[INFO] [stderr]     Checking csv v0.15.0
[INFO] [stderr]     Checking fst-levenshtein v0.2.0
[INFO] [stderr]     Checking dedupe v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/execution.rs:57:25
[INFO] [stderr]    |
[INFO] [stderr] 57 |                     let mut confirmed_list = confirmed_duplicates.entry(entry.id).or_insert(Vec::new());
[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] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/searchable.rs:60:18
[INFO] [stderr]    |
[INFO] [stderr] 60 |             for (mut map, col_item) in map_per_column_list.iter_mut().zip(entry.row.iter()) {
[INFO] [stderr]    |                  ----^^^
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/searchable.rs:63:25
[INFO] [stderr]    |
[INFO] [stderr] 63 |                     let mut list = map.entry(key).or_insert(Vec::new());
[INFO] [stderr]    |                         ----^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/execution.rs:57:25
[INFO] [stderr]    |
[INFO] [stderr] 57 |                     let mut confirmed_list = confirmed_duplicates.entry(entry.id).or_insert(Vec::new());
[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] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/searchable.rs:60:18
[INFO] [stderr]    |
[INFO] [stderr] 60 |             for (mut map, col_item) in map_per_column_list.iter_mut().zip(entry.row.iter()) {
[INFO] [stderr]    |                  ----^^^
[INFO] [stderr]    |                  |
[INFO] [stderr]    |                  help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/searchable.rs:63:25
[INFO] [stderr]    |
[INFO] [stderr] 63 |                     let mut list = map.entry(key).or_insert(Vec::new());
[INFO] [stderr]    |                         ----^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.72s
[INFO] running `"docker" "inspect" "988d02b7880a2b47984b7d6fb306ef73e34117bbc75f1a93bbf31dbf797f5152"`
[INFO] running `"docker" "rm" "-f" "988d02b7880a2b47984b7d6fb306ef73e34117bbc75f1a93bbf31dbf797f5152"`
[INFO] [stdout] 988d02b7880a2b47984b7d6fb306ef73e34117bbc75f1a93bbf31dbf797f5152