[INFO] fetching crate floyd-warshall-alg 0.1.3...
[INFO] extracting crate floyd-warshall-alg 0.1.3 into work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/floyd-warshall-alg/0.1.3
[INFO] extracting crate floyd-warshall-alg 0.1.3 into work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/floyd-warshall-alg/0.1.3
[INFO] validating manifest of floyd-warshall-alg-0.1.3 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 floyd-warshall-alg-0.1.3 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 floyd-warshall-alg-0.1.3
[INFO] finished frobbing floyd-warshall-alg-0.1.3
[INFO] frobbed toml for floyd-warshall-alg-0.1.3 written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/floyd-warshall-alg/0.1.3/Cargo.toml
[INFO] started frobbing floyd-warshall-alg-0.1.3
[INFO] finished frobbing floyd-warshall-alg-0.1.3
[INFO] frobbed toml for floyd-warshall-alg-0.1.3 written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/floyd-warshall-alg/0.1.3/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded safe-graph v0.1.6
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking floyd-warshall-alg-0.1.3 against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-3/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/floyd-warshall-alg/0.1.3:/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] 916c651a723d3f3d5caedc483e220fdb5889b7be0f9caa1b075b7ee6d851c0b7
[INFO] running `"docker" "start" "-a" "916c651a723d3f3d5caedc483e220fdb5889b7be0f9caa1b075b7ee6d851c0b7"`
[INFO] [stderr]     Checking safe-graph v0.1.6
[INFO] [stderr]     Checking floyd-warshall-alg v0.1.3 (/opt/crater/workdir)
[INFO] [stderr] warning: cannot borrow `next` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/floyd_warshall.rs:180:29
[INFO] [stderr]     |
[INFO] [stderr] 179 |                             let direction = next.edge_weight(i, k).unwrap();
[INFO] [stderr]     |                                             ---- immutable borrow occurs here
[INFO] [stderr] 180 |                             next.add_edge(i, j, *direction);
[INFO] [stderr]     |                             ^^^^                ---------- immutable borrow later used here
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(mutable_borrow_reservation_conflict)] on by default
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `next` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/floyd_warshall.rs:188:25
[INFO] [stderr]     |
[INFO] [stderr] 187 |                         let direction = next.edge_weight(i, k).unwrap();
[INFO] [stderr]     |                                         ---- immutable borrow occurs here
[INFO] [stderr] 188 |                         next.add_edge(i, j, *direction);
[INFO] [stderr]     |                         ^^^^                ---------- immutable borrow later used here
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `next` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/floyd_warshall.rs:180:29
[INFO] [stderr]     |
[INFO] [stderr] 179 |                             let direction = next.edge_weight(i, k).unwrap();
[INFO] [stderr]     |                                             ---- immutable borrow occurs here
[INFO] [stderr] 180 |                             next.add_edge(i, j, *direction);
[INFO] [stderr]     |                             ^^^^                ---------- immutable borrow later used here
[INFO] [stderr]     |                             |
[INFO] [stderr]     |                             mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(mutable_borrow_reservation_conflict)] on by default
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `next` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/floyd_warshall.rs:188:25
[INFO] [stderr]     |
[INFO] [stderr] 187 |                         let direction = next.edge_weight(i, k).unwrap();
[INFO] [stderr]     |                                         ---- immutable borrow occurs here
[INFO] [stderr] 188 |                         next.add_edge(i, j, *direction);
[INFO] [stderr]     |                         ^^^^                ---------- immutable borrow later used here
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.83s
[INFO] running `"docker" "inspect" "916c651a723d3f3d5caedc483e220fdb5889b7be0f9caa1b075b7ee6d851c0b7"`
[INFO] running `"docker" "rm" "-f" "916c651a723d3f3d5caedc483e220fdb5889b7be0f9caa1b075b7ee6d851c0b7"`
[INFO] [stdout] 916c651a723d3f3d5caedc483e220fdb5889b7be0f9caa1b075b7ee6d851c0b7