[INFO] updating cached repository https://github.com/sambukowski/blackjack_game
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 12db9cc962334625e0b2f8828e7284e1357c5ded
[INFO] checking sambukowski/blackjack_game against master#6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257 for pr-70872
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsambukowski%2Fblackjack_game" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sambukowski/blackjack_game on toolchain 6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sambukowski/blackjack_game
[INFO] finished tweaking git repo https://github.com/sambukowski/blackjack_game
[INFO] tweaked toml for git repo https://github.com/sambukowski/blackjack_game written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/sambukowski/blackjack_game already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "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] 8a538fbf0a1d5a3e9440766f900ccb7e3d1196e14fddb8b3e9a9f9f25d2d4944
[INFO] running `"docker" "start" "-a" "8a538fbf0a1d5a3e9440766f900ccb7e3d1196e14fddb8b3e9a9f9f25d2d4944"`
[INFO] [stderr]     Checking black_jack_odds v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: value assigned to `output_1` is never read
[INFO] [stderr]    --> src/main.rs:317:13
[INFO] [stderr]     |
[INFO] [stderr] 317 |     let mut output_1 = false;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `output_2` is never read
[INFO] [stderr]    --> src/main.rs:318:13
[INFO] [stderr]     |
[INFO] [stderr] 318 |     let mut output_2 = false;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_double`
[INFO] [stderr]   --> src/main.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn is_double(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_soft`
[INFO] [stderr]   --> src/main.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn is_soft(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Pair`
[INFO] [stderr]    --> src/main.rs:133:8
[INFO] [stderr]     |
[INFO] [stderr] 133 | struct Pair {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `dennis_method`
[INFO] [stderr]    --> src/main.rs:138:4
[INFO] [stderr]     |
[INFO] [stderr] 138 | fn dennis_method(_dealer: &Hand, player: &Hand) -> char {    
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `perfect_method`
[INFO] [stderr]    --> src/main.rs:156:4
[INFO] [stderr]     |
[INFO] [stderr] 156 | fn perfect_method(dealer: &Hand, player: &Hand) -> char {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `output_1` is never read
[INFO] [stderr]    --> src/main.rs:317:13
[INFO] [stderr]     |
[INFO] [stderr] 317 |     let mut output_1 = false;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `output_2` is never read
[INFO] [stderr]    --> src/main.rs:318:13
[INFO] [stderr]     |
[INFO] [stderr] 318 |     let mut output_2 = false;
[INFO] [stderr]     |             ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_double`
[INFO] [stderr]   --> src/main.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn is_double(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_soft`
[INFO] [stderr]   --> src/main.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn is_soft(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Pair`
[INFO] [stderr]    --> src/main.rs:133:8
[INFO] [stderr]     |
[INFO] [stderr] 133 | struct Pair {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `dennis_method`
[INFO] [stderr]    --> src/main.rs:138:4
[INFO] [stderr]     |
[INFO] [stderr] 138 | fn dennis_method(_dealer: &Hand, player: &Hand) -> char {    
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `perfect_method`
[INFO] [stderr]    --> src/main.rs:156:4
[INFO] [stderr]     |
[INFO] [stderr] 156 | fn perfect_method(dealer: &Hand, player: &Hand) -> char {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `"docker" "inspect" "8a538fbf0a1d5a3e9440766f900ccb7e3d1196e14fddb8b3e9a9f9f25d2d4944"`
[INFO] running `"docker" "rm" "-f" "8a538fbf0a1d5a3e9440766f900ccb7e3d1196e14fddb8b3e9a9f9f25d2d4944"`
[INFO] [stdout] 8a538fbf0a1d5a3e9440766f900ccb7e3d1196e14fddb8b3e9a9f9f25d2d4944