[INFO] cloning repository https://github.com/AndrewRosenfrisk/blackjack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AndrewRosenfrisk/blackjack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndrewRosenfrisk%2Fblackjack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndrewRosenfrisk%2Fblackjack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] af5f080e05532e545f1dab6afb592f98eee679ac
[INFO] checking AndrewRosenfrisk/blackjack against master#3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0 for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndrewRosenfrisk%2Fblackjack" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AndrewRosenfrisk/blackjack
[INFO] finished tweaking git repo https://github.com/AndrewRosenfrisk/blackjack
[INFO] tweaked toml for git repo https://github.com/AndrewRosenfrisk/blackjack written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AndrewRosenfrisk/blackjack on toolchain 3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AndrewRosenfrisk/blackjack 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" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ac16afc23f8d03bf8338ed186aeae25388ede75e58c30745be65370eb905383
[INFO] running `Command { std: "docker" "start" "-a" "8ac16afc23f8d03bf8338ed186aeae25388ede75e58c30745be65370eb905383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ac16afc23f8d03bf8338ed186aeae25388ede75e58c30745be65370eb905383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ac16afc23f8d03bf8338ed186aeae25388ede75e58c30745be65370eb905383", kill_on_drop: false }`
[INFO] [stdout] 8ac16afc23f8d03bf8338ed186aeae25388ede75e58c30745be65370eb905383
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e98689e34705e3fecd1dcb1c2264795c62cb7b0c73e62dc59348161e9fe1ed70
[INFO] running `Command { std: "docker" "start" "-a" "e98689e34705e3fecd1dcb1c2264795c62cb7b0c73e62dc59348161e9fe1ed70", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking blackjack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `array::<impl [T; N]>::map` that must be used
[INFO] [stdout]    --> src/main.rs:239:9
[INFO] [stdout]     |
[INFO] [stdout] 239 | /         Suit::VALUES.map(|suit| {
[INFO] [stdout] 240 | |             deck.push(Card {
[INFO] [stdout] 241 | |                 suit: suit.clone(),
[INFO] [stdout] 242 | |                 rank: Rank::Number(rank),
[INFO] [stdout] 243 | |                 state: Visibility::Hidden,
[INFO] [stdout] 244 | |             });
[INFO] [stdout] 245 | |         });
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 239 |         let _ = Suit::VALUES.map(|suit| {
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `array::<impl [T; N]>::map` that must be used
[INFO] [stdout]    --> src/main.rs:239:9
[INFO] [stdout]     |
[INFO] [stdout] 239 | /         Suit::VALUES.map(|suit| {
[INFO] [stdout] 240 | |             deck.push(Card {
[INFO] [stdout] 241 | |                 suit: suit.clone(),
[INFO] [stdout] 242 | |                 rank: Rank::Number(rank),
[INFO] [stdout] 243 | |                 state: Visibility::Hidden,
[INFO] [stdout] 244 | |             });
[INFO] [stdout] 245 | |         });
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 239 |         let _ = Suit::VALUES.map(|suit| {
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `array::<impl [T; N]>::map` that must be used
[INFO] [stdout]    --> src/main.rs:248:9
[INFO] [stdout]     |
[INFO] [stdout] 248 | /         Rank::FACES.map(|face| {
[INFO] [stdout] 249 | |             deck.push(Card {
[INFO] [stdout] 250 | |                 suit: suit.clone(),
[INFO] [stdout] 251 | |                 rank: face,
[INFO] [stdout] 252 | |                 state: Visibility::Hidden,
[INFO] [stdout] 253 | |             })
[INFO] [stdout] 254 | |         });
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 248 |         let _ = Rank::FACES.map(|face| {
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `array::<impl [T; N]>::map` that must be used
[INFO] [stdout]    --> src/main.rs:248:9
[INFO] [stdout]     |
[INFO] [stdout] 248 | /         Rank::FACES.map(|face| {
[INFO] [stdout] 249 | |             deck.push(Card {
[INFO] [stdout] 250 | |                 suit: suit.clone(),
[INFO] [stdout] 251 | |                 rank: face,
[INFO] [stdout] 252 | |                 state: Visibility::Hidden,
[INFO] [stdout] 253 | |             })
[INFO] [stdout] 254 | |         });
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 248 |         let _ = Rank::FACES.map(|face| {
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.36s
[INFO] running `Command { std: "docker" "inspect" "e98689e34705e3fecd1dcb1c2264795c62cb7b0c73e62dc59348161e9fe1ed70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e98689e34705e3fecd1dcb1c2264795c62cb7b0c73e62dc59348161e9fe1ed70", kill_on_drop: false }`
[INFO] [stdout] e98689e34705e3fecd1dcb1c2264795c62cb7b0c73e62dc59348161e9fe1ed70
