[INFO] fetching crate boca 0.1.2...
[INFO] checking boca-0.1.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate boca 0.1.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate boca 0.1.2
[INFO] finished tweaking crates.io crate boca 0.1.2
[INFO] tweaked toml for crates.io crate boca 0.1.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate boca 0.1.2 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 boca 0.1.2 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-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] ca0e141ac4fc44ece4c00915d26d74f4bb425ad4ec4f9e72fe43db15f82a850b
[INFO] running `Command { std: "docker" "start" "-a" "ca0e141ac4fc44ece4c00915d26d74f4bb425ad4ec4f9e72fe43db15f82a850b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca0e141ac4fc44ece4c00915d26d74f4bb425ad4ec4f9e72fe43db15f82a850b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca0e141ac4fc44ece4c00915d26d74f4bb425ad4ec4f9e72fe43db15f82a850b", kill_on_drop: false }`
[INFO] [stdout] ca0e141ac4fc44ece4c00915d26d74f4bb425ad4ec4f9e72fe43db15f82a850b
[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] f8cb85e29e072aaef55530e59445ae367d60f4939243a26720752cdf2bd1d1a4
[INFO] running `Command { std: "docker" "start" "-a" "f8cb85e29e072aaef55530e59445ae367d60f4939243a26720752cdf2bd1d1a4", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking regex-syntax v0.8.5
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[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling derive_more-impl v2.0.1
[INFO] [stderr]    Compiling smart-default v0.7.1
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[INFO] [stderr]     Checking tokio v1.46.1
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[INFO] [stderr]     Checking lazy-regex v3.4.1
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[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]    Compiling synthez-codegen v0.3.1
[INFO] [stderr]    Compiling synthez v0.3.1
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[INFO] [stderr]     Checking clap v4.5.41
[INFO] [stderr]    Compiling cucumber-expressions v0.3.0
[INFO] [stderr]    Compiling cucumber-codegen v0.21.1
[INFO] [stderr]    Compiling serde v1.0.219
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[INFO] [stderr]     Checking futures v0.3.31
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[INFO] [stderr]    Compiling gherkin v0.14.0
[INFO] [stderr]     Checking cucumber v0.21.1
[INFO] [stderr]     Checking boca v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[given(expr = "a file named {string} with:")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the attribute macro `given` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Successfully, Infallible>
[INFO] [stdout]   --> src/main.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[when(expr = "I {successfully}run {command}")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `when` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<CommandString, Infallible>
[INFO] [stdout]   --> src/main.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[when(expr = "I {successfully}run {command}")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `when` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<parameter::Not, Infallible>
[INFO] [stdout]   --> src/main.rs:59:1
[INFO] [stdout]    |
[INFO] [stdout] 59 | #[then(expr = "the exit status should {not}be {int}")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `then` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<StdioName, Infallible>
[INFO] [stdout]   --> src/main.rs:74:1
[INFO] [stdout]    |
[INFO] [stdout] 74 | #[then(expr = "the {stdio} should contain {exactly}{string}")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `then` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Exactly, Infallible>
[INFO] [stdout]   --> src/main.rs:74:1
[INFO] [stdout]    |
[INFO] [stdout] 74 | #[then(expr = "the {stdio} should contain {exactly}{string}")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `then` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:74:1
[INFO] [stdout]    |
[INFO] [stdout] 74 | #[then(expr = "the {stdio} should contain {exactly}{string}")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `then` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<CommandString, Infallible>
[INFO] [stdout]  --> src/parameter.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]   |                 ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `FromStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, String>
[INFO] [stdout]  --> src/parameter.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]   |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/parameter.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]   |                 ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `FromStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<CommandString, Infallible>
[INFO] [stdout]  --> src/parameter.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]   |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Successfully, Infallible>
[INFO] [stdout]   --> src/parameter.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `FromStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, String>
[INFO] [stdout]   --> src/parameter.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/parameter.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `FromStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Successfully, Infallible>
[INFO] [stdout]   --> src/parameter.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<StdioName, Infallible>
[INFO] [stdout]   --> src/parameter.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `FromStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, String>
[INFO] [stdout]   --> src/parameter.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/parameter.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `FromStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<StdioName, Infallible>
[INFO] [stdout]   --> src/parameter.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Exactly, Infallible>
[INFO] [stdout]   --> src/parameter.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `FromStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, String>
[INFO] [stdout]   --> src/parameter.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/parameter.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `FromStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Exactly, Infallible>
[INFO] [stdout]   --> src/parameter.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<parameter::Not, Infallible>
[INFO] [stdout]   --> src/parameter.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `FromStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, String>
[INFO] [stdout]   --> src/parameter.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/parameter.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `FromStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<parameter::Not, Infallible>
[INFO] [stdout]   --> src/parameter.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 | #[derive(Deref, FromStr, Parameter)]
[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:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[given(expr = "a file named {string} with:")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the attribute macro `given` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<world::CommandWorld, Infallible>
[INFO] [stdout]  --> src/world.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Debug, World)]
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `World` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Successfully, Infallible>
[INFO] [stdout]   --> src/main.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[when(expr = "I {successfully}run {command}")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `when` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<CommandString, Infallible>
[INFO] [stdout]   --> src/main.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | #[when(expr = "I {successfully}run {command}")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `when` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<parameter::Not, Infallible>
[INFO] [stdout]   --> src/main.rs:59:1
[INFO] [stdout]    |
[INFO] [stdout] 59 | #[then(expr = "the exit status should {not}be {int}")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `then` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<StdioName, Infallible>
[INFO] [stdout]   --> src/main.rs:74:1
[INFO] [stdout]    |
[INFO] [stdout] 74 | #[then(expr = "the {stdio} should contain {exactly}{string}")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `then` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Exactly, Infallible>
[INFO] [stdout]   --> src/main.rs:74:1
[INFO] [stdout]    |
[INFO] [stdout] 74 | #[then(expr = "the {stdio} should contain {exactly}{string}")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `then` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:74:1
[INFO] [stdout]    |
[INFO] [stdout] 74 | #[then(expr = "the {stdio} should contain {exactly}{string}")]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `then` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<CommandString, Infallible>
[INFO] [stdout]  --> src/parameter.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]   |                 ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `FromStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, String>
[INFO] [stdout]  --> src/parameter.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]   |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/parameter.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]   |                 ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `FromStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<CommandString, Infallible>
[INFO] [stdout]  --> src/parameter.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]   |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Successfully, Infallible>
[INFO] [stdout]   --> src/parameter.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `FromStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, String>
[INFO] [stdout]   --> src/parameter.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/parameter.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `FromStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Successfully, Infallible>
[INFO] [stdout]   --> src/parameter.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<StdioName, Infallible>
[INFO] [stdout]   --> src/parameter.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `FromStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, String>
[INFO] [stdout]   --> src/parameter.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/parameter.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `FromStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<StdioName, Infallible>
[INFO] [stdout]   --> src/parameter.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Exactly, Infallible>
[INFO] [stdout]   --> src/parameter.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `FromStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, String>
[INFO] [stdout]   --> src/parameter.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/parameter.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `FromStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Exactly, Infallible>
[INFO] [stdout]   --> src/parameter.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<parameter::Not, Infallible>
[INFO] [stdout]   --> src/parameter.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `FromStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, String>
[INFO] [stdout]   --> src/parameter.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/parameter.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `FromStr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<parameter::Not, Infallible>
[INFO] [stdout]   --> src/parameter.rs:56:17
[INFO] [stdout]    |
[INFO] [stdout] 56 | #[derive(Deref, FromStr, Parameter)]
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<CommandWorld, Infallible>
[INFO] [stdout]  --> src/world.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Debug, World)]
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `World` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `boca` (bin "boca" test) due to 28 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `boca` (bin "boca") due to 28 previous errors
[INFO] running `Command { std: "docker" "inspect" "f8cb85e29e072aaef55530e59445ae367d60f4939243a26720752cdf2bd1d1a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8cb85e29e072aaef55530e59445ae367d60f4939243a26720752cdf2bd1d1a4", kill_on_drop: false }`
[INFO] [stdout] f8cb85e29e072aaef55530e59445ae367d60f4939243a26720752cdf2bd1d1a4
