[INFO] cloning repository https://github.com/pepijnd/astar-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pepijnd/astar-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpepijnd%2Fastar-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpepijnd%2Fastar-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 43362eb08cc3ec56905a0eefa3577fc907611c12
[INFO] checking pepijnd/astar-rust against beta-2021-10-15 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpepijnd%2Fastar-rust" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pepijnd/astar-rust on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pepijnd/astar-rust
[INFO] finished tweaking git repo https://github.com/pepijnd/astar-rust
[INFO] tweaked toml for git repo https://github.com/pepijnd/astar-rust written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/pepijnd/astar-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redox_syscall v0.1.43
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.29
[INFO] [stderr]   Downloaded docopt v1.0.2
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.29
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.29
[INFO] [stderr]   Downloaded curl v0.4.19
[INFO] [stderr]   Downloaded buf_redux v0.6.3
[INFO] [stderr]   Downloaded hashbrown v0.1.7
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.29
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.29
[INFO] [stderr]   Downloaded rouille v2.2.0
[INFO] [stderr]   Downloaded tiny_http v0.6.0
[INFO] [stderr]   Downloaded wasm-bindgen-threads-xform v0.2.29
[INFO] [stderr]   Downloaded wasm-bindgen-gc v0.2.29
[INFO] [stderr]   Downloaded wasm-bindgen-wasm-interpreter v0.2.29
[INFO] [stderr]   Downloaded wasm-bindgen-cli-support v0.2.29
[INFO] [stderr]   Downloaded wasm-bindgen-cli v0.2.29
[INFO] [stderr]   Downloaded parity-wasm v0.35.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b6a3d6f536b7d16312a99cb3c1cceb8d4f2fc39f4f44f8e9a2eef3fa71a76be
[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" "6b6a3d6f536b7d16312a99cb3c1cceb8d4f2fc39f4f44f8e9a2eef3fa71a76be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b6a3d6f536b7d16312a99cb3c1cceb8d4f2fc39f4f44f8e9a2eef3fa71a76be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b6a3d6f536b7d16312a99cb3c1cceb8d4f2fc39f4f44f8e9a2eef3fa71a76be", kill_on_drop: false }`
[INFO] [stdout] 6b6a3d6f536b7d16312a99cb3c1cceb8d4f2fc39f4f44f8e9a2eef3fa71a76be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97fcae4bed2b9af8c64dbca67d5b627a3bcf47014040c655d6b777112f496798
[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" "97fcae4bed2b9af8c64dbca67d5b627a3bcf47014040c655d6b777112f496798", kill_on_drop: false }`
[INFO] [stderr] warning: astar-rust v0.1.0 (/opt/rustwide/workdir) ignoring invalid dependency `wasm-bindgen-cli` which is missing a lib target
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.29
[INFO] [stderr]    Compiling wasm-bindgen v0.2.29
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_xorshift v0.1.0
[INFO] [stderr]     Checking hashbrown v0.1.7
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.29
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.29
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.29
[INFO] [stderr]     Checking astar-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/algo/index.rs:44:17
[INFO] [stdout]    |
[INFO] [stdout] 42 |         for n in self.iter().enumerate() {
[INFO] [stdout]    |                  ---- immutable borrow occurs here
[INFO] [stdout] 43 |             if score < (n.1).1 {
[INFO] [stdout] 44 |                 self.insert(n.0, (node, score));
[INFO] [stdout]    |                 ^^^^        --- immutable borrow later used here
[INFO] [stdout]    |                 |
[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 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/algo/index.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |         for n in self.iter().enumerate() {
[INFO] [stdout]    |                  ---- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 55 |                 self.remove(n.0);
[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 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/algo/hash.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |         for n in self.iter().enumerate() {
[INFO] [stdout]    |                  ---- immutable borrow occurs here
[INFO] [stdout] 52 |             if score < (n.1).1 {
[INFO] [stdout] 53 |                 self.insert(n.0, (node, score));
[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 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/algo/hash.rs:64:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |         for n in self.iter().enumerate() {
[INFO] [stdout]    |                  ---- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 64 |                 self.remove(n.0);
[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 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/algo/index.rs:44:17
[INFO] [stdout]    |
[INFO] [stdout] 42 |         for n in self.iter().enumerate() {
[INFO] [stdout]    |                  ---- immutable borrow occurs here
[INFO] [stdout] 43 |             if score < (n.1).1 {
[INFO] [stdout] 44 |                 self.insert(n.0, (node, score));
[INFO] [stdout]    |                 ^^^^        --- immutable borrow later used here
[INFO] [stdout]    |                 |
[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 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/algo/index.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |         for n in self.iter().enumerate() {
[INFO] [stdout]    |                  ---- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 55 |                 self.remove(n.0);
[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 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/algo/hash.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |         for n in self.iter().enumerate() {
[INFO] [stdout]    |                  ---- immutable borrow occurs here
[INFO] [stdout] 52 |             if score < (n.1).1 {
[INFO] [stdout] 53 |                 self.insert(n.0, (node, score));
[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 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/algo/hash.rs:64:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |         for n in self.iter().enumerate() {
[INFO] [stdout]    |                  ---- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 64 |                 self.remove(n.0);
[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 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> benches/bench_astar.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `astar-rust` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/algo/index.rs:44:17
[INFO] [stdout]    |
[INFO] [stdout] 42 |         for n in self.iter().enumerate() {
[INFO] [stdout]    |                  ---- immutable borrow occurs here
[INFO] [stdout] 43 |             if score < (n.1).1 {
[INFO] [stdout] 44 |                 self.insert(n.0, (node, score));
[INFO] [stdout]    |                 ^^^^        --- immutable borrow later used here
[INFO] [stdout]    |                 |
[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 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/algo/index.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |         for n in self.iter().enumerate() {
[INFO] [stdout]    |                  ---- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 55 |                 self.remove(n.0);
[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 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/algo/index.rs:44:17
[INFO] [stdout]    |
[INFO] [stdout] 42 |         for n in self.iter().enumerate() {
[INFO] [stdout]    |                  ---- immutable borrow occurs here
[INFO] [stdout] 43 |             if score < (n.1).1 {
[INFO] [stdout] 44 |                 self.insert(n.0, (node, score));
[INFO] [stdout]    |                 ^^^^        --- immutable borrow later used here
[INFO] [stdout]    |                 |
[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 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/algo/index.rs:55:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |         for n in self.iter().enumerate() {
[INFO] [stdout]    |                  ---- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 55 |                 self.remove(n.0);
[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 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/algo/hash.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |         for n in self.iter().enumerate() {
[INFO] [stdout]    |                  ---- immutable borrow occurs here
[INFO] [stdout] 52 |             if score < (n.1).1 {
[INFO] [stdout] 53 |                 self.insert(n.0, (node, score));
[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 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/algo/hash.rs:64:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |         for n in self.iter().enumerate() {
[INFO] [stdout]    |                  ---- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 64 |                 self.remove(n.0);
[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 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/algo/hash.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |         for n in self.iter().enumerate() {
[INFO] [stdout]    |                  ---- immutable borrow occurs here
[INFO] [stdout] 52 |             if score < (n.1).1 {
[INFO] [stdout] 53 |                 self.insert(n.0, (node, score));
[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 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stdout]   --> src/algo/hash.rs:64:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |         for n in self.iter().enumerate() {
[INFO] [stdout]    |                  ---- immutable borrow occurs here
[INFO] [stdout] ...
[INFO] [stdout] 64 |                 self.remove(n.0);
[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 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "97fcae4bed2b9af8c64dbca67d5b627a3bcf47014040c655d6b777112f496798", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97fcae4bed2b9af8c64dbca67d5b627a3bcf47014040c655d6b777112f496798", kill_on_drop: false }`
[INFO] [stdout] 97fcae4bed2b9af8c64dbca67d5b627a3bcf47014040c655d6b777112f496798
