[INFO] fetching crate floyd-warshall-alg 0.1.3... [INFO] checking floyd-warshall-alg-0.1.3 against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104 [INFO] extracting crate floyd-warshall-alg 0.1.3 into /workspace/builds/worker-12/source [INFO] validating manifest of crates.io crate floyd-warshall-alg 0.1.3 on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate floyd-warshall-alg 0.1.3 [INFO] finished tweaking crates.io crate floyd-warshall-alg 0.1.3 [INFO] tweaked toml for crates.io crate floyd-warshall-alg 0.1.3 written to /workspace/builds/worker-12/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded safe-graph v0.1.6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6c16c889a07ee5d402fead93d32c36704a45eb5572b2036aeb2b91b92fe4deae [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "6c16c889a07ee5d402fead93d32c36704a45eb5572b2036aeb2b91b92fe4deae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6c16c889a07ee5d402fead93d32c36704a45eb5572b2036aeb2b91b92fe4deae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6c16c889a07ee5d402fead93d32c36704a45eb5572b2036aeb2b91b92fe4deae", kill_on_drop: false }` [INFO] [stdout] 6c16c889a07ee5d402fead93d32c36704a45eb5572b2036aeb2b91b92fe4deae [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6c1c4a2b4fd0bd4deeb245721561ccb26aa20f30faf8d82ca2bd8f9796d51af5 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "6c1c4a2b4fd0bd4deeb245721561ccb26aa20f30faf8d82ca2bd8f9796d51af5", kill_on_drop: false }` [INFO] [stderr] Checking hashbrown v0.9.0 [INFO] [stderr] Compiling indexmap v1.6.0 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Checking safe-graph v0.1.6 [INFO] [stderr] Checking floyd-warshall-alg v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/floyd_warshall.rs:24:13 [INFO] [stdout] | [INFO] [stdout] 24 | op: Box F>, [INFO] [stdout] | ^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(F, F) -> F` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/floyd_warshall.rs:44:14 [INFO] [stdout] | [INFO] [stdout] 44 | cmp: Box bool>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(F, F) -> bool` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/floyd_warshall.rs:88:35 [INFO] [stdout] | [INFO] [stdout] 88 | pub fn new_customized(op: Box F>, cmp: Box bool>) -> Self { [INFO] [stdout] | ^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(F, F) -> F` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/floyd_warshall.rs:88:60 [INFO] [stdout] | [INFO] [stdout] 88 | pub fn new_customized(op: Box F>, cmp: Box bool>) -> Self { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(F, F) -> bool` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/floyd_warshall.rs:112:17 [INFO] [stdout] | [INFO] [stdout] 112 | op: Box F>, [INFO] [stdout] | ^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(F, F) -> F` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/floyd_warshall.rs:113:18 [INFO] [stdout] | [INFO] [stdout] 113 | cmp: Box bool>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(F, F) -> bool` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/floyd_warshall.rs:24:13 [INFO] [stdout] | [INFO] [stdout] 24 | op: Box F>, [INFO] [stdout] | ^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(F, F) -> F` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/floyd_warshall.rs:44:14 [INFO] [stdout] | [INFO] [stdout] 44 | cmp: Box bool>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(F, F) -> bool` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/floyd_warshall.rs:88:35 [INFO] [stdout] | [INFO] [stdout] 88 | pub fn new_customized(op: Box F>, cmp: Box bool>) -> Self { [INFO] [stdout] | ^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(F, F) -> F` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/floyd_warshall.rs:88:60 [INFO] [stdout] | [INFO] [stdout] 88 | pub fn new_customized(op: Box F>, cmp: Box bool>) -> Self { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(F, F) -> bool` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/floyd_warshall.rs:112:17 [INFO] [stdout] | [INFO] [stdout] 112 | op: Box F>, [INFO] [stdout] | ^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(F, F) -> F` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/floyd_warshall.rs:113:18 [INFO] [stdout] | [INFO] [stdout] 113 | cmp: Box bool>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(F, F) -> bool` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: cannot borrow `next` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/floyd_warshall.rs:180:29 [INFO] [stdout] | [INFO] [stdout] 179 | ... let direction = next.edge_weight(i, k).unwrap(); [INFO] [stdout] | ---- immutable borrow occurs here [INFO] [stdout] 180 | ... next.add_edge(i, j, *direction); [INFO] [stdout] | ^^^^ ---------- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[deny(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: cannot borrow `next` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/floyd_warshall.rs:188:25 [INFO] [stdout] | [INFO] [stdout] 187 | let direction = next.edge_weight(i, k).unwrap(); [INFO] [stdout] | ---- immutable borrow occurs here [INFO] [stdout] 188 | next.add_edge(i, j, *direction); [INFO] [stdout] | ^^^^ ---------- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `floyd-warshall-alg` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: cannot borrow `next` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/floyd_warshall.rs:180:29 [INFO] [stdout] | [INFO] [stdout] 179 | ... let direction = next.edge_weight(i, k).unwrap(); [INFO] [stdout] | ---- immutable borrow occurs here [INFO] [stdout] 180 | ... next.add_edge(i, j, *direction); [INFO] [stdout] | ^^^^ ---------- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[deny(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: cannot borrow `next` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/floyd_warshall.rs:188:25 [INFO] [stdout] | [INFO] [stdout] 187 | let direction = next.edge_weight(i, k).unwrap(); [INFO] [stdout] | ---- immutable borrow occurs here [INFO] [stdout] 188 | next.add_edge(i, j, *direction); [INFO] [stdout] | ^^^^ ---------- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "6c1c4a2b4fd0bd4deeb245721561ccb26aa20f30faf8d82ca2bd8f9796d51af5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6c1c4a2b4fd0bd4deeb245721561ccb26aa20f30faf8d82ca2bd8f9796d51af5", kill_on_drop: false }` [INFO] [stdout] 6c1c4a2b4fd0bd4deeb245721561ccb26aa20f30faf8d82ca2bd8f9796d51af5