[INFO] cloning repository https://github.com/dani3ljh/text_based_blackjack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dani3ljh/text_based_blackjack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdani3ljh%2Ftext_based_blackjack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdani3ljh%2Ftext_based_blackjack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cd78478980a64f5bb0f655b6bd28e4c381634739
[INFO] checking dani3ljh/text_based_blackjack against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdani3ljh%2Ftext_based_blackjack" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dani3ljh/text_based_blackjack
[INFO] finished tweaking git repo https://github.com/dani3ljh/text_based_blackjack
[INFO] tweaked toml for git repo https://github.com/dani3ljh/text_based_blackjack written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dani3ljh/text_based_blackjack on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dani3ljh/text_based_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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7d4277662fd5eb0bf7ab80d32fdbccae87795edb94414a67de7e617c5ed4d04
[INFO] running `Command { std: "docker" "start" "-a" "b7d4277662fd5eb0bf7ab80d32fdbccae87795edb94414a67de7e617c5ed4d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7d4277662fd5eb0bf7ab80d32fdbccae87795edb94414a67de7e617c5ed4d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7d4277662fd5eb0bf7ab80d32fdbccae87795edb94414a67de7e617c5ed4d04", kill_on_drop: false }`
[INFO] [stdout] b7d4277662fd5eb0bf7ab80d32fdbccae87795edb94414a67de7e617c5ed4d04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df60f03cd07d7b95c9fd5d95f0a9dec306c5b7fcda85c32728d0dce200f2e084
[INFO] running `Command { std: "docker" "start" "-a" "df60f03cd07d7b95c9fd5d95f0a9dec306c5b7fcda85c32728d0dce200f2e084", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking first_project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `black_jack_card::BlackJackCard`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use black_jack_card::BlackJackCard;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `black_jack_card::BlackJackCard`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use black_jack_card::BlackJackCard;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `integer_between_values` is never used
[INFO] [stdout]  --> src/get_input.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn integer_between_values(min: i32, max: i32) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `integer_with_values` is never used
[INFO] [stdout]   --> src/get_input.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn integer_with_values(values: Vec<i32>) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `integer_between_values` is never used
[INFO] [stdout]  --> src/get_input.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn integer_between_values(min: i32, max: i32) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `integer_with_values` is never used
[INFO] [stdout]   --> src/get_input.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn integer_with_values(values: Vec<i32>) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/get_input.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         match input.trim().parse::<String>() {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/get_input.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         match input.trim().parse::<String>() {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `first_project` (bin "first_project" test) due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `first_project` (bin "first_project") due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "df60f03cd07d7b95c9fd5d95f0a9dec306c5b7fcda85c32728d0dce200f2e084", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df60f03cd07d7b95c9fd5d95f0a9dec306c5b7fcda85c32728d0dce200f2e084", kill_on_drop: false }`
[INFO] [stdout] df60f03cd07d7b95c9fd5d95f0a9dec306c5b7fcda85c32728d0dce200f2e084
