[INFO] cloning repository https://github.com/rgrativol/lotto6
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rgrativol/lotto6" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frgrativol%2Flotto6", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frgrativol%2Flotto6'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1cf9ca4ab5aff21d0c62abfae4dde01b617cc309
[INFO] testing rgrativol/lotto6 against try#0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6 for pr-137122-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frgrativol%2Flotto6" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rgrativol/lotto6
[INFO] finished tweaking git repo https://github.com/rgrativol/lotto6
[INFO] tweaked toml for git repo https://github.com/rgrativol/lotto6 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rgrativol/lotto6 on toolchain 0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rgrativol/lotto6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98dfac5cc757706938eb8a4787ad5ead4546642d76e5d3e2f95824ceed8c335d
[INFO] running `Command { std: "docker" "start" "-a" "98dfac5cc757706938eb8a4787ad5ead4546642d76e5d3e2f95824ceed8c335d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98dfac5cc757706938eb8a4787ad5ead4546642d76e5d3e2f95824ceed8c335d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98dfac5cc757706938eb8a4787ad5ead4546642d76e5d3e2f95824ceed8c335d", kill_on_drop: false }`
[INFO] [stdout] 98dfac5cc757706938eb8a4787ad5ead4546642d76e5d3e2f95824ceed8c335d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3ea4e64675263c4a8e70e269d69700d72e8d75ad74f49e723e5da5980daca72
[INFO] running `Command { std: "docker" "start" "-a" "d3ea4e64675263c4a8e70e269d69700d72e8d75ad74f49e723e5da5980daca72", kill_on_drop: false }`
[INFO] [stderr]    Compiling lotto6 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `draws`
[INFO] [stdout]  --> src/stats.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn frequency(draws: &Vec<Draw>) -> Vec<DrawSummary> {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_draws`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `draws`
[INFO] [stdout]  --> src/stats.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn most_overdue_numbers(draws: &Vec<Draw>) -> Vec<DrawSummary> {
[INFO] [stdout]   |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_draws`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `draws`
[INFO] [stdout]   --> src/stats.rs:13:24
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn most_common_numbers(draws: &Vec<Draw>) -> Vec<DrawSummary> {
[INFO] [stdout]    |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_draws`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `draws`
[INFO] [stdout]   --> src/stats.rs:17:31
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn least_often_picked_numbers(draws: &Vec<Draw>) -> Vec<DrawSummary> {
[INFO] [stdout]    |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_draws`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `draws`
[INFO] [stdout]   --> src/stats.rs:21:21
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn most_common_pair(draws: &Vec<Draw>) -> Vec<(u8,u8, u32)> {
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_draws`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `draws`
[INFO] [stdout]   --> src/stats.rs:25:25
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn most_common_triplets(draws: &Vec<Draw>) -> Vec<(u8, u8, u8, u32)> {
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_draws`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `draws`
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let draws = load_csv(csv_path);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_draws`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `n_bonus` is never read
[INFO] [stdout]   --> src/models.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct Draw {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     n_bonus: u8,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Draw` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `DrawSummary` is never used
[INFO] [stdout]  --> src/stats.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | type DrawSummary = (u8, u32);
[INFO] [stdout]   |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `frequency` is never used
[INFO] [stdout]  --> src/stats.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn frequency(draws: &Vec<Draw>) -> Vec<DrawSummary> {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `most_overdue_numbers` is never used
[INFO] [stdout]  --> src/stats.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn most_overdue_numbers(draws: &Vec<Draw>) -> Vec<DrawSummary> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `most_common_numbers` is never used
[INFO] [stdout]   --> src/stats.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn most_common_numbers(draws: &Vec<Draw>) -> Vec<DrawSummary> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `least_often_picked_numbers` is never used
[INFO] [stdout]   --> src/stats.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn least_often_picked_numbers(draws: &Vec<Draw>) -> Vec<DrawSummary> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `most_common_pair` is never used
[INFO] [stdout]   --> src/stats.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn most_common_pair(draws: &Vec<Draw>) -> Vec<(u8,u8, u32)> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `most_common_triplets` is never used
[INFO] [stdout]   --> src/stats.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn most_common_triplets(draws: &Vec<Draw>) -> Vec<(u8, u8, u8, u32)> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FrequencyStack` is never constructed
[INFO] [stdout]  --> src/frequency_stack.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct FrequencyStack{
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `push` and `pop` are never used
[INFO] [stdout]   --> src/frequency_stack.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl FrequencyStack{
[INFO] [stdout]    | ------------------- methods in this implementation
[INFO] [stdout] 9  |     fn push(&self){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     fn pop(&self){
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "d3ea4e64675263c4a8e70e269d69700d72e8d75ad74f49e723e5da5980daca72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3ea4e64675263c4a8e70e269d69700d72e8d75ad74f49e723e5da5980daca72", kill_on_drop: false }`
[INFO] [stdout] d3ea4e64675263c4a8e70e269d69700d72e8d75ad74f49e723e5da5980daca72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 590764d5a3d30c7f2981596da415e7b133f932cf841ad816258d00371c3aedf8
[INFO] running `Command { std: "docker" "start" "-a" "590764d5a3d30c7f2981596da415e7b133f932cf841ad816258d00371c3aedf8", kill_on_drop: false }`
[INFO] [stderr]    Compiling lotto6 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `draws`
[INFO] [stdout]  --> src/stats.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn frequency(draws: &Vec<Draw>) -> Vec<DrawSummary> {
[INFO] [stdout]   |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_draws`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `draws`
[INFO] [stdout]  --> src/stats.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn most_overdue_numbers(draws: &Vec<Draw>) -> Vec<DrawSummary> {
[INFO] [stdout]   |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_draws`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `draws`
[INFO] [stdout]   --> src/stats.rs:13:24
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn most_common_numbers(draws: &Vec<Draw>) -> Vec<DrawSummary> {
[INFO] [stdout]    |                        ^^^^^ help: if this is intentional, prefix it with an underscore: `_draws`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `draws`
[INFO] [stdout]   --> src/stats.rs:17:31
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn least_often_picked_numbers(draws: &Vec<Draw>) -> Vec<DrawSummary> {
[INFO] [stdout]    |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_draws`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `draws`
[INFO] [stdout]   --> src/stats.rs:21:21
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn most_common_pair(draws: &Vec<Draw>) -> Vec<(u8,u8, u32)> {
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_draws`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `draws`
[INFO] [stdout]   --> src/stats.rs:25:25
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn most_common_triplets(draws: &Vec<Draw>) -> Vec<(u8, u8, u8, u32)> {
[INFO] [stdout]    |                         ^^^^^ help: if this is intentional, prefix it with an underscore: `_draws`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `draws`
[INFO] [stdout]   --> src/main.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let draws = load_csv(csv_path);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_draws`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `n_bonus` is never read
[INFO] [stdout]   --> src/models.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct Draw {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     n_bonus: u8,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Draw` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `DrawSummary` is never used
[INFO] [stdout]  --> src/stats.rs:3:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | type DrawSummary = (u8, u32);
[INFO] [stdout]   |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `frequency` is never used
[INFO] [stdout]  --> src/stats.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn frequency(draws: &Vec<Draw>) -> Vec<DrawSummary> {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `most_overdue_numbers` is never used
[INFO] [stdout]  --> src/stats.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn most_overdue_numbers(draws: &Vec<Draw>) -> Vec<DrawSummary> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `most_common_numbers` is never used
[INFO] [stdout]   --> src/stats.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn most_common_numbers(draws: &Vec<Draw>) -> Vec<DrawSummary> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `least_often_picked_numbers` is never used
[INFO] [stdout]   --> src/stats.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn least_often_picked_numbers(draws: &Vec<Draw>) -> Vec<DrawSummary> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `most_common_pair` is never used
[INFO] [stdout]   --> src/stats.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn most_common_pair(draws: &Vec<Draw>) -> Vec<(u8,u8, u32)> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `most_common_triplets` is never used
[INFO] [stdout]   --> src/stats.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn most_common_triplets(draws: &Vec<Draw>) -> Vec<(u8, u8, u8, u32)> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FrequencyStack` is never constructed
[INFO] [stdout]  --> src/frequency_stack.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct FrequencyStack{
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `push` and `pop` are never used
[INFO] [stdout]   --> src/frequency_stack.rs:9:8
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl FrequencyStack{
[INFO] [stdout]    | ------------------- methods in this implementation
[INFO] [stdout] 9  |     fn push(&self){
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 12 |     fn pop(&self){
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: could not compile `lotto6` (bin "lotto6" test); 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6/bin/rustc --crate-name lotto6 --edition=2018 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=7beda6514574d01d -C extra-filename=-1cbf5acbec93e184 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "590764d5a3d30c7f2981596da415e7b133f932cf841ad816258d00371c3aedf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "590764d5a3d30c7f2981596da415e7b133f932cf841ad816258d00371c3aedf8", kill_on_drop: false }`
[INFO] [stdout] 590764d5a3d30c7f2981596da415e7b133f932cf841ad816258d00371c3aedf8