[INFO] fetching crate confirm-rs 1.1.0...
[INFO] checking confirm-rs-1.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate confirm-rs 1.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate confirm-rs 1.1.0
[INFO] finished tweaking crates.io crate confirm-rs 1.1.0
[INFO] tweaked toml for crates.io crate confirm-rs 1.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate confirm-rs 1.1.0 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 crates.io crate confirm-rs 1.1.0 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-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] 5157cf02a39ad4fc473650769d6da6f4448f451a858243fadaf5667ed787eedf
[INFO] running `Command { std: "docker" "start" "-a" "5157cf02a39ad4fc473650769d6da6f4448f451a858243fadaf5667ed787eedf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5157cf02a39ad4fc473650769d6da6f4448f451a858243fadaf5667ed787eedf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5157cf02a39ad4fc473650769d6da6f4448f451a858243fadaf5667ed787eedf", kill_on_drop: false }`
[INFO] [stdout] 5157cf02a39ad4fc473650769d6da6f4448f451a858243fadaf5667ed787eedf
[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] fab7174bff9942fb170b80a0b9ace7e9d134fba60b1b5cb74eada5bc56ccee7b
[INFO] running `Command { std: "docker" "start" "-a" "fab7174bff9942fb170b80a0b9ace7e9d134fba60b1b5cb74eada5bc56ccee7b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]     Checking clap_lex v0.1.1
[INFO] [stderr]     Checking termios v0.3.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getch v0.3.1
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.1.7
[INFO] [stderr]     Checking clap v3.1.12
[INFO] [stderr]     Checking confirm-rs v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Answer, Infallible>
[INFO] [stdout]   --> src/main.rs:31:53
[INFO] [stdout]    |
[INFO] [stdout] 31 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 32 | |         let low = s.to_ascii_lowercase();
[INFO] [stdout] 33 | |         match low.as_str() {
[INFO] [stdout] 34 | |             "yes" | "y" => Ok(Answer::Yes),
[INFO] [stdout] ...  |
[INFO] [stdout] 38 | |     }
[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<Answer, Infallible>
[INFO] [stdout]   --> src/main.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | /         match low.as_str() {
[INFO] [stdout] 34 | |             "yes" | "y" => Ok(Answer::Yes),
[INFO] [stdout] 35 | |             "no" | "n" => Ok(Answer::No),
[INFO] [stdout] 36 | |             _ => Ok(Answer::Retry),
[INFO] [stdout] 37 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Answer, Infallible>
[INFO] [stdout]   --> src/main.rs:34:28
[INFO] [stdout]    |
[INFO] [stdout] 34 |             "yes" | "y" => Ok(Answer::Yes),
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Answer, Infallible>
[INFO] [stdout]   --> src/main.rs:35:27
[INFO] [stdout]    |
[INFO] [stdout] 35 |             "no" | "n" => Ok(Answer::No),
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Answer, Infallible>
[INFO] [stdout]   --> src/main.rs:36:18
[INFO] [stdout]    |
[INFO] [stdout] 36 |             _ => Ok(Answer::Retry),
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, Answer>
[INFO] [stdout]   --> src/main.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |         Ok(Answer::from_str(s)?)
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Answer, Infallible>
[INFO] [stdout]   --> src/main.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |         Ok(Answer::from_str(s)?)
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 | /     /// The prompt to display
[INFO] [stdout] 102 | |     ///
[INFO] [stdout] 103 | |     /// Prompt of "Continue?" will become "Continue? [y/n]: ".  Options are
[INFO] [stdout] 104 | |     /// added and highlighted based on given settings.  Original message will
[INFO] [stdout] 105 | |     /// NEVER be modified.
[INFO] [stdout] 106 | |     #[clap(name = "PROMPT", default_value = "Continue?")]
[INFO] [stdout] 107 | |     prompt: String,
[INFO] [stdout]     | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, Answer>
[INFO] [stdout]    --> src/main.rs:210:16
[INFO] [stdout]     |
[INFO] [stdout] 210 |             Ok(Answer::from_str(response)?)
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Answer, Infallible>
[INFO] [stdout]    --> src/main.rs:210:16
[INFO] [stdout]     |
[INFO] [stdout] 210 |             Ok(Answer::from_str(response)?)
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `confirm-rs` (bin "confirm") due to 10 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<Answer, Infallible>
[INFO] [stdout]   --> src/main.rs:31:53
[INFO] [stdout]    |
[INFO] [stdout] 31 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 32 | |         let low = s.to_ascii_lowercase();
[INFO] [stdout] 33 | |         match low.as_str() {
[INFO] [stdout] 34 | |             "yes" | "y" => Ok(Answer::Yes),
[INFO] [stdout] ...  |
[INFO] [stdout] 38 | |     }
[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<Answer, Infallible>
[INFO] [stdout]   --> src/main.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | /         match low.as_str() {
[INFO] [stdout] 34 | |             "yes" | "y" => Ok(Answer::Yes),
[INFO] [stdout] 35 | |             "no" | "n" => Ok(Answer::No),
[INFO] [stdout] 36 | |             _ => Ok(Answer::Retry),
[INFO] [stdout] 37 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `confirm-rs` (bin "confirm" test) due to 10 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<Answer, Infallible>
[INFO] [stdout]   --> src/main.rs:34:28
[INFO] [stdout]    |
[INFO] [stdout] 34 |             "yes" | "y" => Ok(Answer::Yes),
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Answer, Infallible>
[INFO] [stdout]   --> src/main.rs:35:27
[INFO] [stdout]    |
[INFO] [stdout] 35 |             "no" | "n" => Ok(Answer::No),
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Answer, Infallible>
[INFO] [stdout]   --> src/main.rs:36:18
[INFO] [stdout]    |
[INFO] [stdout] 36 |             _ => Ok(Answer::Retry),
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, Answer>
[INFO] [stdout]   --> src/main.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |         Ok(Answer::from_str(s)?)
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Answer, Infallible>
[INFO] [stdout]   --> src/main.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |         Ok(Answer::from_str(s)?)
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 | /     /// The prompt to display
[INFO] [stdout] 102 | |     ///
[INFO] [stdout] 103 | |     /// Prompt of "Continue?" will become "Continue? [y/n]: ".  Options are
[INFO] [stdout] 104 | |     /// added and highlighted based on given settings.  Original message will
[INFO] [stdout] 105 | |     /// NEVER be modified.
[INFO] [stdout] 106 | |     #[clap(name = "PROMPT", default_value = "Continue?")]
[INFO] [stdout] 107 | |     prompt: String,
[INFO] [stdout]     | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, Answer>
[INFO] [stdout]    --> src/main.rs:210:16
[INFO] [stdout]     |
[INFO] [stdout] 210 |             Ok(Answer::from_str(response)?)
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Answer, Infallible>
[INFO] [stdout]    --> src/main.rs:210:16
[INFO] [stdout]     |
[INFO] [stdout] 210 |             Ok(Answer::from_str(response)?)
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fab7174bff9942fb170b80a0b9ace7e9d134fba60b1b5cb74eada5bc56ccee7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fab7174bff9942fb170b80a0b9ace7e9d134fba60b1b5cb74eada5bc56ccee7b", kill_on_drop: false }`
[INFO] [stdout] fab7174bff9942fb170b80a0b9ace7e9d134fba60b1b5cb74eada5bc56ccee7b
