[INFO] fetching crate cucumber_rust 0.9.0...
[INFO] checking cucumber_rust-0.9.0 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate cucumber_rust 0.9.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate cucumber_rust 0.9.0 on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cucumber_rust 0.9.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate cucumber_rust 0.9.0
[INFO] tweaked toml for crates.io crate cucumber_rust 0.9.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded peg-runtime v0.6.3
[INFO] [stderr]   Downloaded peg-macros v0.6.3
[INFO] [stderr]   Downloaded cucumber_rust_codegen v0.9.0
[INFO] [stderr]   Downloaded cute_custom_default v2.1.0
[INFO] [stderr]   Downloaded typed-builder v0.7.1
[INFO] [stderr]   Downloaded gherkin_rust v0.10.1
[INFO] [stderr]   Downloaded peg v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c70168c22b4dccf923898f848ced479080a6d61ffb76015d7062e75b1782eac
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9c70168c22b4dccf923898f848ced479080a6d61ffb76015d7062e75b1782eac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c70168c22b4dccf923898f848ced479080a6d61ffb76015d7062e75b1782eac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c70168c22b4dccf923898f848ced479080a6d61ffb76015d7062e75b1782eac", kill_on_drop: false }`
[INFO] [stdout] 9c70168c22b4dccf923898f848ced479080a6d61ffb76015d7062e75b1782eac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3bf8655fa90aa9cb06b4d274a5560a74b94a40ece4ca1a74ccf9479edeb9d163
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3bf8655fa90aa9cb06b4d274a5560a74b94a40ece4ca1a74ccf9479edeb9d163", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]     Checking futures-sink v0.3.16
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking slab v0.4.4
[INFO] [stderr]    Compiling peg-runtime v0.6.3
[INFO] [stderr]     Checking futures-io v0.3.16
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking pathdiff v0.2.0
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking sharded-slab v0.1.3
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking crossbeam-utils v0.8.5
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking shh v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling peg-macros v0.6.3
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tokio v1.9.0
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking globset v0.4.8
[INFO] [stderr]     Checking peg v0.6.3
[INFO] [stderr]     Checking ignore v0.4.18
[INFO] [stderr]     Checking globwalk v0.8.1
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling typed-builder v0.7.1
[INFO] [stderr]    Compiling async-stream-impl v0.3.2
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling serial_test_derive v0.5.1
[INFO] [stderr]    Compiling cute_custom_default v2.1.0
[INFO] [stderr]     Checking serial_test v0.5.1
[INFO] [stderr]     Checking async-stream v0.3.2
[INFO] [stderr]     Checking thiserror v1.0.26
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking futures-executor v0.3.16
[INFO] [stderr]     Checking futures v0.3.16
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]     Checking serde_json v1.0.66
[INFO] [stderr]     Checking tracing-subscriber v0.2.19
[INFO] [stderr]    Compiling gherkin_rust v0.10.1
[INFO] [stderr]     Checking cucumber_rust v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `world`
[INFO] [stdout]   --> tests/cucumber_builder.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |                 t!(|world, _ctx| crate::MyWorld::new().await.unwrap()),
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_world`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 19s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3bf8655fa90aa9cb06b4d274a5560a74b94a40ece4ca1a74ccf9479edeb9d163", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bf8655fa90aa9cb06b4d274a5560a74b94a40ece4ca1a74ccf9479edeb9d163", kill_on_drop: false }`
[INFO] [stdout] 3bf8655fa90aa9cb06b4d274a5560a74b94a40ece4ca1a74ccf9479edeb9d163