[INFO] updating cached repository sjsyrek/cormen-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sjsyrek/cormen-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sjsyrek/cormen-rust" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/sjsyrek/cormen-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/sjsyrek/cormen-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sjsyrek/cormen-rust" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/sjsyrek/cormen-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/sjsyrek/cormen-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5d48e3c79004cd805bba4e3ec5c971b1448de5f9
[INFO] sha for GitHub repo sjsyrek/cormen-rust: 5d48e3c79004cd805bba4e3ec5c971b1448de5f9
[INFO] validating manifest of sjsyrek/cormen-rust on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sjsyrek/cormen-rust on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sjsyrek/cormen-rust
[INFO] finished frobbing sjsyrek/cormen-rust
[INFO] frobbed toml for sjsyrek/cormen-rust written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/sjsyrek/cormen-rust/Cargo.toml
[INFO] started frobbing sjsyrek/cormen-rust
[INFO] finished frobbing sjsyrek/cormen-rust
[INFO] frobbed toml for sjsyrek/cormen-rust written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/sjsyrek/cormen-rust/Cargo.toml
[INFO] crate sjsyrek/cormen-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking sjsyrek/cormen-rust against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-7/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/sjsyrek/cormen-rust:/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" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 09f830151d29c56ab851c98ada0f38cc554adc070ce992b2fa2466c276a4dd57
[INFO] running `"docker" "start" "-a" "09f830151d29c56ab851c98ada0f38cc554adc070ce992b2fa2466c276a4dd57"`
[INFO] [stderr]     Checking cormen_rust v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/sorts/merge_sort.rs:14:40
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut left: Vec<isize> = vec![0; (n1 + 1)];
[INFO] [stderr]    |                                        ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/sorts/merge_sort.rs:15:41
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let mut right: Vec<isize> = vec![0; (n2 + 1)];
[INFO] [stderr]    |                                         ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
[INFO] [stderr]   --> src/utils.rs:15:26
[INFO] [stderr]    |
[INFO] [stderr] 15 |     "[".to_string() + &s.trim_right_matches(", ").to_string() + "]"
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/sorts/merge_sort.rs:14:40
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut left: Vec<isize> = vec![0; (n1 + 1)];
[INFO] [stderr]    |                                        ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/sorts/merge_sort.rs:15:41
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let mut right: Vec<isize> = vec![0; (n2 + 1)];
[INFO] [stderr]    |                                         ^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_right_matches': superseded by `trim_end_matches`
[INFO] [stderr]   --> src/utils.rs:15:26
[INFO] [stderr]    |
[INFO] [stderr] 15 |     "[".to_string() + &s.trim_right_matches(", ").to_string() + "]"
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_end_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `"docker" "inspect" "09f830151d29c56ab851c98ada0f38cc554adc070ce992b2fa2466c276a4dd57"`
[INFO] running `"docker" "rm" "-f" "09f830151d29c56ab851c98ada0f38cc554adc070ce992b2fa2466c276a4dd57"`
[INFO] [stdout] 09f830151d29c56ab851c98ada0f38cc554adc070ce992b2fa2466c276a4dd57