[INFO] cloning repository chrisshyi/2Sum
[INFO] running `"git" "clone" "--bare" "git://github.com/chrisshyi/2Sum.git" "work/cache/sources/gh/chrisshyi/2Sum"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/chrisshyi/2Sum'...
[INFO] running `"git" "clone" "work/cache/sources/gh/chrisshyi/2Sum" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/chrisshyi/2Sum"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/chrisshyi/2Sum'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/chrisshyi/2Sum" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/chrisshyi/2Sum"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/chrisshyi/2Sum'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 163209a01a75ee37c76614aac312a42374d538e1
[INFO] sha for GitHub repo chrisshyi/2Sum: 163209a01a75ee37c76614aac312a42374d538e1
[INFO] validating manifest of chrisshyi/2Sum on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of chrisshyi/2Sum on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing chrisshyi/2Sum
[INFO] finished frobbing chrisshyi/2Sum
[INFO] frobbed toml for chrisshyi/2Sum written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/chrisshyi/2Sum/Cargo.toml
[INFO] started frobbing chrisshyi/2Sum
[INFO] finished frobbing chrisshyi/2Sum
[INFO] frobbed toml for chrisshyi/2Sum written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/chrisshyi/2Sum/Cargo.toml
[INFO] crate chrisshyi/2Sum already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking chrisshyi/2Sum against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-4/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/chrisshyi/2Sum:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2f009e4715c4dc6472def4f3a98ab8af232fd824f3187d8a193f2a17f842688b
[INFO] running `"docker" "start" "-a" "2f009e4715c4dc6472def4f3a98ab8af232fd824f3187d8a193f2a17f842688b"`
[INFO] [stderr]     Checking two_sum v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/lib.rs:52:59
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let lower_index = get_complement_index(&num_list, (-10000 as i64 - num), false); 
[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/lib.rs:53:59
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let upper_index = get_complement_index(&num_list, (10000 as i64 - num), true);
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/lib.rs:52:59
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let lower_index = get_complement_index(&num_list, (-10000 as i64 - num), false); 
[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/lib.rs:53:59
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let upper_index = get_complement_index(&num_list, (10000 as i64 - num), true);
[INFO] [stderr]    |                                                           ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "2f009e4715c4dc6472def4f3a98ab8af232fd824f3187d8a193f2a17f842688b"`
[INFO] running `"docker" "rm" "-f" "2f009e4715c4dc6472def4f3a98ab8af232fd824f3187d8a193f2a17f842688b"`
[INFO] [stdout] 2f009e4715c4dc6472def4f3a98ab8af232fd824f3187d8a193f2a17f842688b