[INFO] fetching crate floyd-warshall-alg 0.1.3... [INFO] checking floyd-warshall-alg-0.1.3 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141 [INFO] extracting crate floyd-warshall-alg 0.1.3 into /workspace/builds/worker-14/source [INFO] validating manifest of crates.io crate floyd-warshall-alg 0.1.3 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-14/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 25e0876d7ffa1292348bd871475f0c156e0d256a29fb728d50a9c68bc9db5620 [INFO] running `Command { std: "docker" "start" "-a" "25e0876d7ffa1292348bd871475f0c156e0d256a29fb728d50a9c68bc9db5620", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "25e0876d7ffa1292348bd871475f0c156e0d256a29fb728d50a9c68bc9db5620", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "25e0876d7ffa1292348bd871475f0c156e0d256a29fb728d50a9c68bc9db5620", kill_on_drop: false }` [INFO] [stdout] 25e0876d7ffa1292348bd871475f0c156e0d256a29fb728d50a9c68bc9db5620 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 28f5513e5f94b8ea6b5f0843fc5abf1e58ae68ca6c7f503a77e68bdd69742289 [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" "28f5513e5f94b8ea6b5f0843fc5abf1e58ae68ca6c7f503a77e68bdd69742289", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling indexmap v1.7.0 [INFO] [stderr] Compiling num-traits v0.2.14 [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] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [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] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 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] | ^^^^^^^^^^^^^^^^^^^^----------^ [INFO] [stdout] | | | [INFO] [stdout] | | immutable borrow later used here [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(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] warning: 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] | ^^^^^^^^^^^^^^^^^^^^----------^ [INFO] [stdout] | | | [INFO] [stdout] | | immutable borrow later used here [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] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 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] | ^^^^^^^^^^^^^^^^^^^^----------^ [INFO] [stdout] | | | [INFO] [stdout] | | immutable borrow later used here [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(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] warning: 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] | ^^^^^^^^^^^^^^^^^^^^----------^ [INFO] [stdout] | | | [INFO] [stdout] | | immutable borrow later used here [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] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.76s [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "28f5513e5f94b8ea6b5f0843fc5abf1e58ae68ca6c7f503a77e68bdd69742289", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "28f5513e5f94b8ea6b5f0843fc5abf1e58ae68ca6c7f503a77e68bdd69742289", kill_on_drop: false }` [INFO] [stdout] 28f5513e5f94b8ea6b5f0843fc5abf1e58ae68ca6c7f503a77e68bdd69742289