[INFO] cloning repository https://github.com/FeodalherreN/codeabbey_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FeodalherreN/codeabbey_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFeodalherreN%2Fcodeabbey_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFeodalherreN%2Fcodeabbey_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f43193e94596aff3d3fff55037d2a954d6629c59
[INFO] checking FeodalherreN/codeabbey_rs against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFeodalherreN%2Fcodeabbey_rs" "/workspace/builds/worker-24/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-24/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FeodalherreN/codeabbey_rs 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 git repo https://github.com/FeodalherreN/codeabbey_rs
[INFO] finished tweaking git repo https://github.com/FeodalherreN/codeabbey_rs
[INFO] tweaked toml for git repo https://github.com/FeodalherreN/codeabbey_rs written to /workspace/builds/worker-24/source/Cargo.toml
[INFO] crate git repo https://github.com/FeodalherreN/codeabbey_rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] [stdout] 94e7df77a128bc2d611d273de80f948aeac6fdba3055f0ea5461d82dc889742f
[INFO] running `Command { std: "docker" "start" "-a" "94e7df77a128bc2d611d273de80f948aeac6fdba3055f0ea5461d82dc889742f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94e7df77a128bc2d611d273de80f948aeac6fdba3055f0ea5461d82dc889742f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94e7df77a128bc2d611d273de80f948aeac6fdba3055f0ea5461d82dc889742f", kill_on_drop: false }`
[INFO] [stdout] 94e7df77a128bc2d611d273de80f948aeac6fdba3055f0ea5461d82dc889742f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-24/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] 9cf918c2b4d32485633ed79cd44d8256e5ed080516dcd8f5ca3d5fd789b987d4
[INFO] running `Command { std: "docker" "start" "-a" "9cf918c2b4d32485633ed79cd44d8256e5ed080516dcd8f5ca3d5fd789b987d4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking codeabbey_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/tasks/modular_calculator.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/tasks/modular_calculator.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/tasks/modular_calculator.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |         let s = answer.to_owned();
[INFO] [stdout]   |             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `s` is never read
[INFO] [stdout]  --> src/tasks/modulo_and_time_difference.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 |         let (mut s, mut m, mut h, mut d) = (0, 0, 0, 0);
[INFO] [stdout]   |                  ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `m` is never read
[INFO] [stdout]  --> src/tasks/modulo_and_time_difference.rs:5:25
[INFO] [stdout]   |
[INFO] [stdout] 5 |         let (mut s, mut m, mut h, mut d) = (0, 0, 0, 0);
[INFO] [stdout]   |                         ^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `h` is never read
[INFO] [stdout]  --> src/tasks/modulo_and_time_difference.rs:5:32
[INFO] [stdout]   |
[INFO] [stdout] 5 |         let (mut s, mut m, mut h, mut d) = (0, 0, 0, 0);
[INFO] [stdout]   |                                ^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `d` is never read
[INFO] [stdout]  --> src/tasks/modulo_and_time_difference.rs:5:39
[INFO] [stdout]   |
[INFO] [stdout] 5 |         let (mut s, mut m, mut h, mut d) = (0, 0, 0, 0);
[INFO] [stdout]   |                                       ^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `arithmetic_progression`
[INFO] [stdout]  --> src/tasks/arithmetic_progression.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn arithmetic_progression(formulas: Vec<Vec<i32>>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `array_checksum`
[INFO] [stdout]  --> src/tasks/array_checksum.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn array_checksum(input: Vec<i32>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `array_counters`
[INFO] [stdout]  --> src/tasks/array_counters.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn array_counters(array: Vec<i32>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `average_of_an_array`
[INFO] [stdout]  --> src/tasks/average_of_an_array.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn average_of_an_array(input: Vec<Vec<i32>>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `body_mass_index`
[INFO] [stdout]  --> src/tasks/body_mass_index.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn body_mass_index(input: Vec<Vec<f32>>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `collatz_sequence`
[INFO] [stdout]  --> src/tasks/collatz_sequence.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn collatz_sequence(numbers: Vec<i32>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `calculate`
[INFO] [stdout]   --> src/tasks/collatz_sequence.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn calculate(number: i32, count: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]  --> src/tasks/modular_calculator.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |         let s = answer.to_owned();
[INFO] [stdout]   |             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `s` is never read
[INFO] [stdout]  --> src/tasks/modulo_and_time_difference.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 |         let (mut s, mut m, mut h, mut d) = (0, 0, 0, 0);
[INFO] [stdout]   |                  ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `m` is never read
[INFO] [stdout]  --> src/tasks/modulo_and_time_difference.rs:5:25
[INFO] [stdout]   |
[INFO] [stdout] 5 |         let (mut s, mut m, mut h, mut d) = (0, 0, 0, 0);
[INFO] [stdout]   |                         ^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `h` is never read
[INFO] [stdout]  --> src/tasks/modulo_and_time_difference.rs:5:32
[INFO] [stdout]   |
[INFO] [stdout] 5 |         let (mut s, mut m, mut h, mut d) = (0, 0, 0, 0);
[INFO] [stdout]   |                                ^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `d` is never read
[INFO] [stdout]  --> src/tasks/modulo_and_time_difference.rs:5:39
[INFO] [stdout]   |
[INFO] [stdout] 5 |         let (mut s, mut m, mut h, mut d) = (0, 0, 0, 0);
[INFO] [stdout]   |                                       ^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `dice_rolling`
[INFO] [stdout]  --> src/tasks/dice_rolling.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn dice_rolling(random_floats: Vec<f32>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `fahrenheit_to_celcius`
[INFO] [stdout]  --> src/tasks/fahrenheit_celcius.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn fahrenheit_to_celcius(numbers: Vec<i32>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `linear_function`
[INFO] [stdout]  --> src/tasks/linear_function.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn linear_function(input: Vec<Vec<i32>>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `maximum_of_array`
[INFO] [stdout]  --> src/tasks/maximum_of_array.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn maximum_of_array(numbers: Vec<i32>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `median_of_three`
[INFO] [stdout]  --> src/tasks/median_of_three.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn median_of_three(list_of_values: Vec<Vec<i32>>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `min_of_three`
[INFO] [stdout]  --> src/tasks/min_of_three.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn min_of_three(number_pairs_matrix: Vec<Vec<i32>>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `min_of_two`
[INFO] [stdout]  --> src/tasks/min_of_two.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn min_of_two(number_pairs_matrix: Vec<Vec<i32>>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `modular_calculator`
[INFO] [stdout]  --> src/tasks/modular_calculator.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn modular_calculator(start_number: i32, operations: Vec<(&str, i32)>) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `modulo_and_time_difference`
[INFO] [stdout]  --> src/tasks/modulo_and_time_difference.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn modulo_and_time_difference(input: Vec<Vec<i32>>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `reverse_string`
[INFO] [stdout]  --> src/tasks/reverse_string.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn reverse_string(input: String) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rounding`
[INFO] [stdout]  --> src/tasks/rounding.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn rounding(number_matrix: Vec<Vec<i32>>) -> String {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sum`
[INFO] [stdout]  --> src/tasks/sum.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn sum(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sum_in_loop`
[INFO] [stdout]  --> src/tasks/sum_in_loop.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn sum_in_loop(numbers: Vec<i32>) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sum_of_digits`
[INFO] [stdout]  --> src/tasks/sum_of_digits.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn sum_of_digits(digits: Vec<Vec<i32>>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sums_in_loops`
[INFO] [stdout]  --> src/tasks/sums_in_loop.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn sums_in_loops(number_matrix: Vec<Vec<i32>>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `triangles`
[INFO] [stdout]  --> src/tasks/triangles.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn triangles(input: Vec<Vec<i32>>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `vowel_count`
[INFO] [stdout]  --> src/tasks/vowel_count.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn vowel_count(scentences: Vec<String>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `weighted_sum_of_digits`
[INFO] [stdout]  --> src/tasks/weighted_sum_of_digits.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn weighted_sum_of_digits(input: Vec<i32>) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 31 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "9cf918c2b4d32485633ed79cd44d8256e5ed080516dcd8f5ca3d5fd789b987d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cf918c2b4d32485633ed79cd44d8256e5ed080516dcd8f5ca3d5fd789b987d4", kill_on_drop: false }`
[INFO] [stdout] 9cf918c2b4d32485633ed79cd44d8256e5ed080516dcd8f5ca3d5fd789b987d4