[INFO] cloning repository https://github.com/Maphikza/rust_black_jack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Maphikza/rust_black_jack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaphikza%2Frust_black_jack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMaphikza%2Frust_black_jack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 58e3655c390154187f9892f199b183e285eb0e28
[INFO] checking Maphikza/rust_black_jack 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%2FMaphikza%2Frust_black_jack" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Maphikza/rust_black_jack
[INFO] finished tweaking git repo https://github.com/Maphikza/rust_black_jack
[INFO] tweaked toml for git repo https://github.com/Maphikza/rust_black_jack written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Maphikza/rust_black_jack 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/Maphikza/rust_black_jack 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 15dbbc9335ad4f198b3d7f8c04db05e7f35a4dcca234596b68edf07da5e68e1c
[INFO] running `Command { std: "docker" "start" "-a" "15dbbc9335ad4f198b3d7f8c04db05e7f35a4dcca234596b68edf07da5e68e1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15dbbc9335ad4f198b3d7f8c04db05e7f35a4dcca234596b68edf07da5e68e1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15dbbc9335ad4f198b3d7f8c04db05e7f35a4dcca234596b68edf07da5e68e1c", kill_on_drop: false }`
[INFO] [stdout] 15dbbc9335ad4f198b3d7f8c04db05e7f35a4dcca234596b68edf07da5e68e1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 1fc809a9e929e14e80a941319067e60407e3f46a6dcc9e45ed7dc44e893f099a
[INFO] running `Command { std: "docker" "start" "-a" "1fc809a9e929e14e80a941319067e60407e3f46a6dcc9e45ed7dc44e893f099a", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_black_jack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let card = card.trim().parse().expect("Make sure it is a 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/main.rs:49:28
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let card_one: String = card_one.trim().parse().expect("Make sure it's a String.");
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:57:28
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let card_two: String = card_two.trim().parse().expect("Make sure it's a String.");
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:93:28
[INFO] [stdout]    |
[INFO] [stdout] 93 |     let card_one: String = card_one.trim().parse().expect("Make sure it's a String.");
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:101:28
[INFO] [stdout]     |
[INFO] [stdout] 101 |     let card_two: String = card_two.trim().parse().expect("Make sure it's a String.");
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:120:28
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let card_one: String = card_one.trim().parse().expect("Make sure it's a String.");
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:128:28
[INFO] [stdout]     |
[INFO] [stdout] 128 |     let card_two: String = card_two.trim().parse().expect("Make sure it's a String.");
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_black_jack` (bin "rust_black_jack") due to 7 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let card = card.trim().parse().expect("Make sure it is a 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/main.rs:49:28
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let card_one: String = card_one.trim().parse().expect("Make sure it's a String.");
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:57:28
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let card_two: String = card_two.trim().parse().expect("Make sure it's a String.");
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:93:28
[INFO] [stdout]    |
[INFO] [stdout] 93 |     let card_one: String = card_one.trim().parse().expect("Make sure it's a String.");
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:101:28
[INFO] [stdout]     |
[INFO] [stdout] 101 |     let card_two: String = card_two.trim().parse().expect("Make sure it's a String.");
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:120:28
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let card_one: String = card_one.trim().parse().expect("Make sure it's a String.");
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:128:28
[INFO] [stdout]     |
[INFO] [stdout] 128 |     let card_two: String = card_two.trim().parse().expect("Make sure it's a String.");
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_black_jack` (bin "rust_black_jack" test) due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "1fc809a9e929e14e80a941319067e60407e3f46a6dcc9e45ed7dc44e893f099a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fc809a9e929e14e80a941319067e60407e3f46a6dcc9e45ed7dc44e893f099a", kill_on_drop: false }`
[INFO] [stdout] 1fc809a9e929e14e80a941319067e60407e3f46a6dcc9e45ed7dc44e893f099a