[INFO] crate floyd-warshall-alg 0.1.3 is already in cache
[INFO] extracting crate floyd-warshall-alg 0.1.3 into work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/reg/floyd-warshall-alg/0.1.3
[INFO] extracting crate floyd-warshall-alg 0.1.3 into work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/reg/floyd-warshall-alg/0.1.3
[INFO] validating manifest of floyd-warshall-alg-0.1.3 on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of floyd-warshall-alg-0.1.3 on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-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-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/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-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/reg/floyd-warshall-alg/0.1.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking floyd-warshall-alg-0.1.3 against try#99a7498759a22b5684caf798a98b7e90ad9d2443 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-2/try#99a7498759a22b5684caf798a98b7e90ad9d2443:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/reg/floyd-warshall-alg/0.1.3:/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" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1606dfffd0e31b1b0d4b4e090b8928f2d7c46323c0a06e05fa938bb654beab17
[INFO] running `"docker" "start" "-a" "1606dfffd0e31b1b0d4b4e090b8928f2d7c46323c0a06e05fa938bb654beab17"`
[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 1.86s
[INFO] running `"docker" "inspect" "1606dfffd0e31b1b0d4b4e090b8928f2d7c46323c0a06e05fa938bb654beab17"`
[INFO] running `"docker" "rm" "-f" "1606dfffd0e31b1b0d4b4e090b8928f2d7c46323c0a06e05fa938bb654beab17"`
[INFO] [stdout] 1606dfffd0e31b1b0d4b4e090b8928f2d7c46323c0a06e05fa938bb654beab17