[INFO] crate graphsearch 0.6.0 is already in cache
[INFO] extracting crate graphsearch 0.6.0 into work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/graphsearch/0.6.0
[INFO] extracting crate graphsearch 0.6.0 into work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/graphsearch/0.6.0
[INFO] validating manifest of graphsearch-0.6.0 on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of graphsearch-0.6.0 on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing graphsearch-0.6.0
[INFO] finished frobbing graphsearch-0.6.0
[INFO] frobbed toml for graphsearch-0.6.0 written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/graphsearch/0.6.0/Cargo.toml
[INFO] started frobbing graphsearch-0.6.0
[INFO] finished frobbing graphsearch-0.6.0
[INFO] frobbed toml for graphsearch-0.6.0 written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/graphsearch/0.6.0/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking graphsearch-0.6.0 against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-7/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/graphsearch/0.6.0:/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" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0bc56dfe1bf7c054717919cbaa3db0ed105fa02322f5544c0b2d442e93403e17
[INFO] running `"docker" "start" "-a" "0bc56dfe1bf7c054717919cbaa3db0ed105fa02322f5544c0b2d442e93403e17"`
[INFO] [stderr]     Checking graphsearch v0.6.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/lib.rs:299:14
[INFO] [stderr]     |
[INFO] [stderr] 299 |     for i in (0..path.len()-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 `for` head expression
[INFO] [stderr]    --> src/lib.rs:320:14
[INFO] [stderr]     |
[INFO] [stderr] 320 |     for i in (0..self.graph.len()) {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:352:11
[INFO] [stderr]     |
[INFO] [stderr] 352 |       let mut v: Option<usize>;
[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: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/lib.rs:299:14
[INFO] [stderr]     |
[INFO] [stderr] 299 |     for i in (0..path.len()-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 `for` head expression
[INFO] [stderr]    --> src/lib.rs:320:14
[INFO] [stderr]     |
[INFO] [stderr] 320 |     for i in (0..self.graph.len()) {
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/lib.rs:432:16
[INFO] [stderr]     |
[INFO] [stderr] 432 |       for i in (0..expected_path.len()) { assert_eq!(result[i], expected_path[i]); }
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/lib.rs:493:16
[INFO] [stderr]     |
[INFO] [stderr] 493 |       for i in (0..expected_path.len()) { assert_eq!(result[i], expected_path[i]); }
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/lib.rs:556:16
[INFO] [stderr]     |
[INFO] [stderr] 556 |       for i in (0..expected_path.len()) { assert_eq!(result[i], expected_path[i]); }
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/lib.rs:616:16
[INFO] [stderr]     |
[INFO] [stderr] 616 |       for i in (0..expected_path.len()) { assert_eq!(result[i], expected_path[i]); }
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/lib.rs:678:16
[INFO] [stderr]     |
[INFO] [stderr] 678 |       for i in (0..expected_path.len()) { assert_eq!(result[i], expected_path[i]); }
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/lib.rs:738:16
[INFO] [stderr]     |
[INFO] [stderr] 738 |       for i in (0..expected_path.len()) { assert_eq!(result[i], expected_path[i]); }
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]    --> src/lib.rs:830:16
[INFO] [stderr]     |
[INFO] [stderr] 830 |       for i in (0..expected_path.len()) { assert_eq!(result[i], expected_path[i]); }
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:352:11
[INFO] [stderr]     |
[INFO] [stderr] 352 |       let mut v: Option<usize>;
[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 0.95s
[INFO] running `"docker" "inspect" "0bc56dfe1bf7c054717919cbaa3db0ed105fa02322f5544c0b2d442e93403e17"`
[INFO] running `"docker" "rm" "-f" "0bc56dfe1bf7c054717919cbaa3db0ed105fa02322f5544c0b2d442e93403e17"`
[INFO] [stdout] 0bc56dfe1bf7c054717919cbaa3db0ed105fa02322f5544c0b2d442e93403e17