[INFO] cloning repository https://github.com/Akavall/Simulations-in-Rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Akavall/Simulations-in-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkavall%2FSimulations-in-Rust"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkavall%2FSimulations-in-Rust'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9952c478819ea1e8fe827c5de337e40e0e0f5df0
[INFO] checking Akavall/Simulations-in-Rust against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkavall%2FSimulations-in-Rust" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Akavall/Simulations-in-Rust on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Akavall/Simulations-in-Rust
[INFO] finished tweaking git repo https://github.com/Akavall/Simulations-in-Rust
[INFO] tweaked toml for git repo https://github.com/Akavall/Simulations-in-Rust written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/Akavall/Simulations-in-Rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-14/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 35166ea759764f883ae121ea7c26829173f4a1be796c2b81a31fd8035423d6bd
[INFO] running `"docker" "start" "-a" "35166ea759764f883ae121ea7c26829173f4a1be796c2b81a31fd8035423d6bd"`
[INFO] [stderr]     Checking simulation v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `num::traits::Float`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use num::traits::Float;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]  --> src/math_tools.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 |     for i in (1..(n+1)) {
[INFO] [stderr]   |              ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]  --> src/simulation_part.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 |     for _ in (0..n_iterations) {
[INFO] [stderr]   |              ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/simulation_part.rs:21:14
[INFO] [stderr]    |
[INFO] [stderr] 21 |     for i in (2..(n_turns * 2)) {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/simulation_part.rs:37:14
[INFO] [stderr]    |
[INFO] [stderr] 37 |     for _ in (0..n_iterations) {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]  --> src/analytics.rs:6:14
[INFO] [stderr]   |
[INFO] [stderr] 6 |     for i in (1..(n_turns + 1)) {
[INFO] [stderr]   |              ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/analytics.rs:16:32
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let catalan = calc_catalan((n-1));
[INFO] [stderr]    |                                ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]  --> src/analytics_combs.rs:6:14
[INFO] [stderr]   |
[INFO] [stderr] 6 |     for i in (1..(n_turns + 1)) {
[INFO] [stderr]   |              ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]  --> src/simulation_combs.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     for i in 0..n_simulations {
[INFO] [stderr]   |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/simulation_combs.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     for i in 0..(n * 2) {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n_turns_float`
[INFO] [stderr]  --> src/analytics.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let n_turns_float = n_turns as f64;
[INFO] [stderr]   |         ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_n_turns_float`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n_turns_float`
[INFO] [stderr]  --> src/analytics_combs.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let n_turns_float = n_turns as f64;
[INFO] [stderr]   |         ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_n_turns_float`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n_f64`
[INFO] [stderr]   --> src/analytics_combs.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let n_f64 = n as f64;
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_n_f64`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]  --> src/simulation_combs_w_break.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     for i in 0..n_simulations {
[INFO] [stderr]   |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/simulation_combs_w_break.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     for i in 0..(n_1 * 2) {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/simulation_combs_w_break.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |     for i in 0..(n_2 * 2) {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/simulation_combs_w_break.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     for i in 0..n_simulations {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/simulation_combs_w_break.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |     for i in 0..(n_1 * 2) {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/simulation_combs_w_break.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |     for i in 0..(n_2 * 2) {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gen_conv_dist`
[INFO] [stderr]  --> src/simulation_part.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn gen_conv_dist(prob_down: f64, n_turns: i32, n_iterations: i32) -> HashMap<i32, i32> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gen_conv_one_run`
[INFO] [stderr]   --> src/simulation_part.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn gen_conv_one_run(prob_down: f64, n_turns: i32) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gen_expected_crosses`
[INFO] [stderr]   --> src/simulation_part.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn gen_expected_crosses(prob_down: f64, n_turns: i32, n_iterations: i32) -> f64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gen_n_convs_one_run`
[INFO] [stderr]   --> src/simulation_part.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub fn gen_n_convs_one_run(prob_down: f64, n_turns: i32) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::traits::Float`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use num::traits::Float;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]  --> src/math_tools.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 |     for i in (1..(n+1)) {
[INFO] [stderr]   |              ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]  --> src/simulation_part.rs:8:14
[INFO] [stderr]   |
[INFO] [stderr] 8 |     for _ in (0..n_iterations) {
[INFO] [stderr]   |              ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/simulation_part.rs:21:14
[INFO] [stderr]    |
[INFO] [stderr] 21 |     for i in (2..(n_turns * 2)) {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]   --> src/simulation_part.rs:37:14
[INFO] [stderr]    |
[INFO] [stderr] 37 |     for _ in (0..n_iterations) {
[INFO] [stderr]    |              ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]  --> src/analytics.rs:6:14
[INFO] [stderr]   |
[INFO] [stderr] 6 |     for i in (1..(n_turns + 1)) {
[INFO] [stderr]   |              ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/analytics.rs:16:32
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let catalan = calc_catalan((n-1));
[INFO] [stderr]    |                                ^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` head expression
[INFO] [stderr]  --> src/analytics_combs.rs:6:14
[INFO] [stderr]   |
[INFO] [stderr] 6 |     for i in (1..(n_turns + 1)) {
[INFO] [stderr]   |              ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]  --> src/simulation_combs.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     for i in 0..n_simulations {
[INFO] [stderr]   |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/simulation_combs.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     for i in 0..(n * 2) {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n_turns_float`
[INFO] [stderr]  --> src/analytics.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let n_turns_float = n_turns as f64;
[INFO] [stderr]   |         ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_n_turns_float`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n_turns_float`
[INFO] [stderr]  --> src/analytics_combs.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let n_turns_float = n_turns as f64;
[INFO] [stderr]   |         ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_n_turns_float`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n_f64`
[INFO] [stderr]   --> src/analytics_combs.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let n_f64 = n as f64;
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_n_f64`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]  --> src/simulation_combs_w_break.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     for i in 0..n_simulations {
[INFO] [stderr]   |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/simulation_combs_w_break.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     for i in 0..(n_1 * 2) {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/simulation_combs_w_break.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |     for i in 0..(n_2 * 2) {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/simulation_combs_w_break.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     for i in 0..n_simulations {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/simulation_combs_w_break.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |     for i in 0..(n_1 * 2) {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/simulation_combs_w_break.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |     for i in 0..(n_2 * 2) {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gen_conv_dist`
[INFO] [stderr]  --> src/simulation_part.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn gen_conv_dist(prob_down: f64, n_turns: i32, n_iterations: i32) -> HashMap<i32, i32> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gen_conv_one_run`
[INFO] [stderr]   --> src/simulation_part.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn gen_conv_one_run(prob_down: f64, n_turns: i32) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gen_expected_crosses`
[INFO] [stderr]   --> src/simulation_part.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn gen_expected_crosses(prob_down: f64, n_turns: i32, n_iterations: i32) -> f64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gen_n_convs_one_run`
[INFO] [stderr]   --> src/simulation_part.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | pub fn gen_n_convs_one_run(prob_down: f64, n_turns: i32) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `"docker" "inspect" "35166ea759764f883ae121ea7c26829173f4a1be796c2b81a31fd8035423d6bd"`
[INFO] running `"docker" "rm" "-f" "35166ea759764f883ae121ea7c26829173f4a1be796c2b81a31fd8035423d6bd"`
[INFO] [stdout] 35166ea759764f883ae121ea7c26829173f4a1be796c2b81a31fd8035423d6bd