[INFO] cloning repository https://github.com/jplhomer/advent
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jplhomer/advent" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjplhomer%2Fadvent", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjplhomer%2Fadvent'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f86c9630e1969d19f99402140d169e50af7d2b89
[INFO] checking jplhomer/advent 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%2Fjplhomer%2Fadvent" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jplhomer/advent
[INFO] finished tweaking git repo https://github.com/jplhomer/advent
[INFO] tweaked toml for git repo https://github.com/jplhomer/advent written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jplhomer/advent 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/jplhomer/advent 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 0f5a0c60c218b57ce6b1b215632d7ba13003a633eabf734ca5d8dc5ce744e87c
[INFO] running `Command { std: "docker" "start" "-a" "0f5a0c60c218b57ce6b1b215632d7ba13003a633eabf734ca5d8dc5ce744e87c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f5a0c60c218b57ce6b1b215632d7ba13003a633eabf734ca5d8dc5ce744e87c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f5a0c60c218b57ce6b1b215632d7ba13003a633eabf734ca5d8dc5ce744e87c", kill_on_drop: false }`
[INFO] [stdout] 0f5a0c60c218b57ce6b1b215632d7ba13003a633eabf734ca5d8dc5ce744e87c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e8c61d771bc0f5e526627eddedf699e7adb6ec30956f97ca96ba5a9c8bab3a29
[INFO] running `Command { std: "docker" "start" "-a" "e8c61d771bc0f5e526627eddedf699e7adb6ec30956f97ca96ba5a9c8bab3a29", kill_on_drop: false }`
[INFO] [stderr]     Checking advent 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:17:43
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let string_with_numbers: String = line.parse().unwrap();
[INFO] [stdout]    |                                           ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/main.rs:159:37
[INFO] [stdout]     |
[INFO] [stdout] 159 |             possible_games.push(game.clone());
[INFO] [stdout]     |                                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Game` does not implement `Clone`, so calling `clone` on `&Game` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 159 -             possible_games.push(game.clone());
[INFO] [stdout] 159 +             possible_games.push(game);
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `Game`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout] 173 + #[derive(Clone)]
[INFO] [stdout] 174 | struct Game {
[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:17:43
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let string_with_numbers: String = line.parse().unwrap();
[INFO] [stdout]    |                                           ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/main.rs:159:37
[INFO] [stdout]     |
[INFO] [stdout] 159 |             possible_games.push(game.clone());
[INFO] [stdout]     |                                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Game` does not implement `Clone`, so calling `clone` on `&Game` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout] 159 -             possible_games.push(game.clone());
[INFO] [stdout] 159 +             possible_games.push(game);
[INFO] [stdout]     |
[INFO] [stdout] help: if you meant to clone `Game`, implement `Clone` for it
[INFO] [stdout]     |
[INFO] [stdout] 173 + #[derive(Clone)]
[INFO] [stdout] 174 | struct Game {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `advent` (bin "advent" test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `advent` (bin "advent") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "e8c61d771bc0f5e526627eddedf699e7adb6ec30956f97ca96ba5a9c8bab3a29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8c61d771bc0f5e526627eddedf699e7adb6ec30956f97ca96ba5a9c8bab3a29", kill_on_drop: false }`
[INFO] [stdout] e8c61d771bc0f5e526627eddedf699e7adb6ec30956f97ca96ba5a9c8bab3a29