[INFO] cloning repository https://github.com/wan88888/rust_cucumber_demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wan88888/rust_cucumber_demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwan88888%2Frust_cucumber_demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwan88888%2Frust_cucumber_demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0089e3ae433178ac070aca6d0a2115d8f555cf3c
[INFO] checking wan88888/rust_cucumber_demo 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%2Fwan88888%2Frust_cucumber_demo" "/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/wan88888/rust_cucumber_demo
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/wan88888/rust_cucumber_demo
[INFO] tweaked toml for git repo https://github.com/wan88888/rust_cucumber_demo written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/wan88888/rust_cucumber_demo 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/wan88888/rust_cucumber_demo 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] [stderr]     Blocking waiting for file lock on package cache
[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] 313e702c5a23928ace70afea7b1a11dda4fb5fbd60e553715347082103c2901a
[INFO] running `Command { std: "docker" "start" "-a" "313e702c5a23928ace70afea7b1a11dda4fb5fbd60e553715347082103c2901a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "313e702c5a23928ace70afea7b1a11dda4fb5fbd60e553715347082103c2901a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "313e702c5a23928ace70afea7b1a11dda4fb5fbd60e553715347082103c2901a", kill_on_drop: false }`
[INFO] [stdout] 313e702c5a23928ace70afea7b1a11dda4fb5fbd60e553715347082103c2901a
[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] 92ac172807b7296e96e8e9b533b0243c617437cf30b0c55a6e2183aa2ab86626
[INFO] running `Command { std: "docker" "start" "-a" "92ac172807b7296e96e8e9b533b0243c617437cf30b0c55a6e2183aa2ab86626", kill_on_drop: false }`
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[INFO] [stdout] error: this type will no longer be must used: Result<LoginWorld, Infallible>
[INFO] [stdout]  --> tests/login_steps.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(World)]
[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 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<LoginWorld, Infallible>
[INFO] [stdout]  --> tests/login_steps.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(World)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<LoginWorld, Infallible>
[INFO] [stdout]  --> tests/login_steps.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(World)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<LoginWorld, Infallible>
[INFO] [stdout]   --> tests/login_steps.rs:54:48
[INFO] [stdout]    |
[INFO] [stdout] 54 |       async fn new() -> Result<Self, Infallible> {
[INFO] [stdout]    |  ________________________________________________^
[INFO] [stdout] 55 | |         Ok(Self {
[INFO] [stdout] 56 | |             driver: Arc::new(Mutex::new(None)),
[INFO] [stdout] 57 | |             login_page: Arc::new(Mutex::new(None)),
[INFO] [stdout] 58 | |             error_message: Arc::new(Mutex::new(None)),
[INFO] [stdout] 59 | |         })
[INFO] [stdout] 60 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<LoginWorld, Infallible>
[INFO] [stdout]   --> tests/login_steps.rs:54:48
[INFO] [stdout]    |
[INFO] [stdout] 54 |       async fn new() -> Result<Self, Infallible> {
[INFO] [stdout]    |  ________________________________________________^
[INFO] [stdout] 55 | |         Ok(Self {
[INFO] [stdout] 56 | |             driver: Arc::new(Mutex::new(None)),
[INFO] [stdout] 57 | |             login_page: Arc::new(Mutex::new(None)),
[INFO] [stdout] 58 | |             error_message: Arc::new(Mutex::new(None)),
[INFO] [stdout] 59 | |         })
[INFO] [stdout] 60 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<LoginWorld, Infallible>
[INFO] [stdout]   --> tests/login_steps.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 | /         Ok(Self {
[INFO] [stdout] 56 | |             driver: Arc::new(Mutex::new(None)),
[INFO] [stdout] 57 | |             login_page: Arc::new(Mutex::new(None)),
[INFO] [stdout] 58 | |             error_message: Arc::new(Mutex::new(None)),
[INFO] [stdout] 59 | |         })
[INFO] [stdout]    | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> tests/login_steps.rs:82:1
[INFO] [stdout]    |
[INFO] [stdout] 82 | #[when(expr = "I enter username {string}")]
[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<String, Infallible>
[INFO] [stdout]   --> tests/login_steps.rs:91:1
[INFO] [stdout]    |
[INFO] [stdout] 91 | #[when(expr = "I enter password {string}")]
[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<String, Infallible>
[INFO] [stdout]    --> tests/login_steps.rs:120:1
[INFO] [stdout]     |
[INFO] [stdout] 120 | #[then(expr = "the error message should contain {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] [stderr] error: could not compile `rust-cucumber-demo` (test "login_steps") due to 9 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<LoginWorld, Infallible>
[INFO] [stdout]  --> tests/login_steps.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(World)]
[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 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<LoginWorld, Infallible>
[INFO] [stdout]  --> tests/login_steps.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(World)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<LoginWorld, Infallible>
[INFO] [stdout]  --> tests/login_steps.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(World)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<LoginWorld, Infallible>
[INFO] [stdout]   --> tests/login_steps.rs:54:48
[INFO] [stdout]    |
[INFO] [stdout] 54 |       async fn new() -> Result<Self, Infallible> {
[INFO] [stdout]    |  ________________________________________________^
[INFO] [stdout] 55 | |         Ok(Self {
[INFO] [stdout] 56 | |             driver: Arc::new(Mutex::new(None)),
[INFO] [stdout] 57 | |             login_page: Arc::new(Mutex::new(None)),
[INFO] [stdout] 58 | |             error_message: Arc::new(Mutex::new(None)),
[INFO] [stdout] 59 | |         })
[INFO] [stdout] 60 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<LoginWorld, Infallible>
[INFO] [stdout]   --> tests/login_steps.rs:54:48
[INFO] [stdout]    |
[INFO] [stdout] 54 |       async fn new() -> Result<Self, Infallible> {
[INFO] [stdout]    |  ________________________________________________^
[INFO] [stdout] 55 | |         Ok(Self {
[INFO] [stdout] 56 | |             driver: Arc::new(Mutex::new(None)),
[INFO] [stdout] 57 | |             login_page: Arc::new(Mutex::new(None)),
[INFO] [stdout] 58 | |             error_message: Arc::new(Mutex::new(None)),
[INFO] [stdout] 59 | |         })
[INFO] [stdout] 60 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<LoginWorld, Infallible>
[INFO] [stdout]   --> tests/login_steps.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 | /         Ok(Self {
[INFO] [stdout] 56 | |             driver: Arc::new(Mutex::new(None)),
[INFO] [stdout] 57 | |             login_page: Arc::new(Mutex::new(None)),
[INFO] [stdout] 58 | |             error_message: Arc::new(Mutex::new(None)),
[INFO] [stdout] 59 | |         })
[INFO] [stdout]    | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> tests/login_steps.rs:82:1
[INFO] [stdout]    |
[INFO] [stdout] 82 | #[when(expr = "I enter username {string}")]
[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<String, Infallible>
[INFO] [stdout]   --> tests/login_steps.rs:91:1
[INFO] [stdout]    |
[INFO] [stdout] 91 | #[when(expr = "I enter password {string}")]
[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<String, Infallible>
[INFO] [stdout]    --> tests/login_steps.rs:120:1
[INFO] [stdout]     |
[INFO] [stdout] 120 | #[then(expr = "the error message should contain {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] [stderr] error: could not compile `rust-cucumber-demo` (test "cucumber") due to 9 previous errors
[INFO] running `Command { std: "docker" "inspect" "92ac172807b7296e96e8e9b533b0243c617437cf30b0c55a6e2183aa2ab86626", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92ac172807b7296e96e8e9b533b0243c617437cf30b0c55a6e2183aa2ab86626", kill_on_drop: false }`
[INFO] [stdout] 92ac172807b7296e96e8e9b533b0243c617437cf30b0c55a6e2183aa2ab86626
