[INFO] fetching crate hyperbolic_graph_generator 0.1.3...
[INFO] checking hyperbolic_graph_generator-0.1.3 against 1.55.0 for beta-1.56-3
[INFO] extracting crate hyperbolic_graph_generator 0.1.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate hyperbolic_graph_generator 0.1.3 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hyperbolic_graph_generator 0.1.3
[INFO] finished tweaking crates.io crate hyperbolic_graph_generator 0.1.3
[INFO] tweaked toml for crates.io crate hyperbolic_graph_generator 0.1.3 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded GSL v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.55.0" "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] d13936cc354af8e976afd36abd4ab99113cc41c229497a86414acae4b0fb0cfe
[INFO] running `Command { std: "docker" "start" "-a" "d13936cc354af8e976afd36abd4ab99113cc41c229497a86414acae4b0fb0cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d13936cc354af8e976afd36abd4ab99113cc41c229497a86414acae4b0fb0cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d13936cc354af8e976afd36abd4ab99113cc41c229497a86414acae4b0fb0cfe", kill_on_drop: false }`
[INFO] [stdout] d13936cc354af8e976afd36abd4ab99113cc41c229497a86414acae4b0fb0cfe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbd015564f38c3885611105bafddd1a32f47abef3616f1dcbf7a48f98c7f267f
[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" "fbd015564f38c3885611105bafddd1a32f47abef3616f1dcbf7a48f98c7f267f", kill_on_drop: false }`
[INFO] [stderr]    Compiling GSL v1.1.0
[INFO] [stderr]     Checking hyperbolic_graph_generator v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::hg_debug::*`
[INFO] [stdout]   --> src/hg_math.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | use crate::hg_debug::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hg_utils.rs:66:60
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn hg_uniform_radial_coordinate(radius: f64, rnd: &mut FnMut() -> f64) -> f64 {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hg_utils.rs:87:78
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub fn hg_quasi_uniform_radial_coordinate(radius: f64, alpha: f64, rnd: &mut FnMut() -> f64) -> f64 {
[INFO] [stdout]    |                                                                              ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_utils.rs:106:48
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub fn hg_uniform_angular_coordinate(rnd: &mut FnMut() -> f64) -> f64 {
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::hg_debug::*`
[INFO] [stdout]   --> src/hg_gen_algorithms.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | use crate::hg_debug::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hg_gen_algorithms.rs:66:22
[INFO] [stdout]    |
[INFO] [stdout] 66 |         rnd_01: &mut FnMut() -> f64) {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:172:22
[INFO] [stdout]     |
[INFO] [stdout] 172 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:246:22
[INFO] [stdout]     |
[INFO] [stdout] 246 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:331:22
[INFO] [stdout]     |
[INFO] [stdout] 331 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:405:22
[INFO] [stdout]     |
[INFO] [stdout] 405 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:455:22
[INFO] [stdout]     |
[INFO] [stdout] 455 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:520:22
[INFO] [stdout]     |
[INFO] [stdout] 520 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::hg_debug::*`
[INFO] [stdout]   --> src/hg_math.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | use crate::hg_debug::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hg_utils.rs:66:60
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn hg_uniform_radial_coordinate(radius: f64, rnd: &mut FnMut() -> f64) -> f64 {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hg_utils.rs:87:78
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub fn hg_quasi_uniform_radial_coordinate(radius: f64, alpha: f64, rnd: &mut FnMut() -> f64) -> f64 {
[INFO] [stdout]    |                                                                              ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_utils.rs:106:48
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub fn hg_uniform_angular_coordinate(rnd: &mut FnMut() -> f64) -> f64 {
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::hg_debug::*`
[INFO] [stdout]   --> src/hg_gen_algorithms.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | use crate::hg_debug::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hg_gen_algorithms.rs:66:22
[INFO] [stdout]    |
[INFO] [stdout] 66 |         rnd_01: &mut FnMut() -> f64) {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:172:22
[INFO] [stdout]     |
[INFO] [stdout] 172 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:246:22
[INFO] [stdout]     |
[INFO] [stdout] 246 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:331:22
[INFO] [stdout]     |
[INFO] [stdout] 331 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:405:22
[INFO] [stdout]     |
[INFO] [stdout] 405 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:455:22
[INFO] [stdout]     |
[INFO] [stdout] 455 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:520:22
[INFO] [stdout]     |
[INFO] [stdout] 520 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hg_uniform_radial_coordinate`
[INFO] [stdout]   --> src/hg_utils.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn hg_uniform_radial_coordinate(radius: f64, rnd: &mut FnMut() -> f64) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hg_uniform_radial_coordinate`
[INFO] [stdout]   --> src/hg_utils.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn hg_uniform_radial_coordinate(radius: f64, rnd: &mut FnMut() -> f64) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::hg_debug::*`
[INFO] [stdout]   --> src/hg_math.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | use crate::hg_debug::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hg_utils.rs:66:60
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn hg_uniform_radial_coordinate(radius: f64, rnd: &mut FnMut() -> f64) -> f64 {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hg_utils.rs:87:78
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub fn hg_quasi_uniform_radial_coordinate(radius: f64, alpha: f64, rnd: &mut FnMut() -> f64) -> f64 {
[INFO] [stdout]    |                                                                              ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_utils.rs:106:48
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub fn hg_uniform_angular_coordinate(rnd: &mut FnMut() -> f64) -> f64 {
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::hg_debug::*`
[INFO] [stdout]   --> src/hg_gen_algorithms.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | use crate::hg_debug::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hg_gen_algorithms.rs:66:22
[INFO] [stdout]    |
[INFO] [stdout] 66 |         rnd_01: &mut FnMut() -> f64) {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:172:22
[INFO] [stdout]     |
[INFO] [stdout] 172 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:246:22
[INFO] [stdout]     |
[INFO] [stdout] 246 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:331:22
[INFO] [stdout]     |
[INFO] [stdout] 331 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:405:22
[INFO] [stdout]     |
[INFO] [stdout] 405 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:455:22
[INFO] [stdout]     |
[INFO] [stdout] 455 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:520:22
[INFO] [stdout]     |
[INFO] [stdout] 520 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::hg_debug::*`
[INFO] [stdout]   --> src/hg_math.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | use crate::hg_debug::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hg_utils.rs:66:60
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn hg_uniform_radial_coordinate(radius: f64, rnd: &mut FnMut() -> f64) -> f64 {
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hg_utils.rs:87:78
[INFO] [stdout]    |
[INFO] [stdout] 87 | pub fn hg_quasi_uniform_radial_coordinate(radius: f64, alpha: f64, rnd: &mut FnMut() -> f64) -> f64 {
[INFO] [stdout]    |                                                                              ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_utils.rs:106:48
[INFO] [stdout]     |
[INFO] [stdout] 106 | pub fn hg_uniform_angular_coordinate(rnd: &mut FnMut() -> f64) -> f64 {
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::hg_debug::*`
[INFO] [stdout]   --> src/hg_gen_algorithms.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | use crate::hg_debug::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hg_gen_algorithms.rs:66:22
[INFO] [stdout]    |
[INFO] [stdout] 66 |         rnd_01: &mut FnMut() -> f64) {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:172:22
[INFO] [stdout]     |
[INFO] [stdout] 172 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:246:22
[INFO] [stdout]     |
[INFO] [stdout] 246 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:331:22
[INFO] [stdout]     |
[INFO] [stdout] 331 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:405:22
[INFO] [stdout]     |
[INFO] [stdout] 405 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:455:22
[INFO] [stdout]     |
[INFO] [stdout] 455 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:520:22
[INFO] [stdout]     |
[INFO] [stdout] 520 |         rnd_01: &mut FnMut() -> f64,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> f64`
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hg_uniform_radial_coordinate`
[INFO] [stdout]   --> src/hg_utils.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn hg_uniform_radial_coordinate(radius: f64, rnd: &mut FnMut() -> f64) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hg_hyperbolic_distance_hyperbolic_rgg_standard`
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:149:8
[INFO] [stdout]     |
[INFO] [stdout] 149 | pub fn hg_hyperbolic_distance_hyperbolic_rgg_standard(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hg_hyperbolic_distance_er`
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:498:8
[INFO] [stdout]     |
[INFO] [stdout] 498 | pub fn hg_hyperbolic_distance_er(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hg_hyperbolic_distance`
[INFO] [stdout]   --> src/hg_graphs_lib.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn hg_hyperbolic_distance(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hg_uniform_radial_coordinate`
[INFO] [stdout]   --> src/hg_utils.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn hg_uniform_radial_coordinate(radius: f64, rnd: &mut FnMut() -> f64) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hg_hyperbolic_distance_hyperbolic_rgg_standard`
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:149:8
[INFO] [stdout]     |
[INFO] [stdout] 149 | pub fn hg_hyperbolic_distance_hyperbolic_rgg_standard(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hg_hyperbolic_distance_er`
[INFO] [stdout]    --> src/hg_gen_algorithms.rs:498:8
[INFO] [stdout]     |
[INFO] [stdout] 498 | pub fn hg_hyperbolic_distance_er(
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hg_hyperbolic_distance`
[INFO] [stdout]   --> src/hg_graphs_lib.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn hg_hyperbolic_distance(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.41s
[INFO] running `Command { std: "docker" "inspect" "fbd015564f38c3885611105bafddd1a32f47abef3616f1dcbf7a48f98c7f267f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbd015564f38c3885611105bafddd1a32f47abef3616f1dcbf7a48f98c7f267f", kill_on_drop: false }`
[INFO] [stdout] fbd015564f38c3885611105bafddd1a32f47abef3616f1dcbf7a48f98c7f267f
