[INFO] cloning repository https://github.com/nebler/eq
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nebler/eq" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnebler%2Feq", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnebler%2Feq'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eb69f395ae0988b172bfabb3cfe1b5cec89633bb
[INFO] building nebler/eq against master#f5209000832c9d3bc29c91f4daef4ca9f28dc797+target=wasm32-wasip1 for pr-149868
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnebler%2Feq" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nebler/eq
[INFO] finished tweaking git repo https://github.com/nebler/eq
[INFO] tweaked toml for git repo https://github.com/nebler/eq written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nebler/eq on toolchain f5209000832c9d3bc29c91f4daef4ca9f28dc797
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f5209000832c9d3bc29c91f4daef4ca9f28dc797" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nebler/eq 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" "+f5209000832c9d3bc29c91f4daef4ca9f28dc797" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+f5209000832c9d3bc29c91f4daef4ca9f28dc797" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0fd9d6379b72b80e49bd931fd70e7963231a10dbdd4d3c83e73c3ea3b1a61c13
[INFO] running `Command { std: "docker" "start" "-a" "0fd9d6379b72b80e49bd931fd70e7963231a10dbdd4d3c83e73c3ea3b1a61c13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fd9d6379b72b80e49bd931fd70e7963231a10dbdd4d3c83e73c3ea3b1a61c13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fd9d6379b72b80e49bd931fd70e7963231a10dbdd4d3c83e73c3ea3b1a61c13", kill_on_drop: false }`
[INFO] [stdout] 0fd9d6379b72b80e49bd931fd70e7963231a10dbdd4d3c83e73c3ea3b1a61c13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+f5209000832c9d3bc29c91f4daef4ca9f28dc797" "build" "--frozen" "--message-format=json" "--target" "wasm32-wasip1", kill_on_drop: false }`
[INFO] [stdout] b8bc01ad12dab045b8cd8226983dc11f8755c674e7bf293be36ff9d85060730c
[INFO] running `Command { std: "docker" "start" "-a" "b8bc01ad12dab045b8cd8226983dc11f8755c674e7bf293be36ff9d85060730c", kill_on_drop: false }`
[INFO] [stderr]    Compiling concurrency_book_1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         poll.poll(&mut events, None);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let _ = poll.poll(&mut events, None);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "b8bc01ad12dab045b8cd8226983dc11f8755c674e7bf293be36ff9d85060730c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8bc01ad12dab045b8cd8226983dc11f8755c674e7bf293be36ff9d85060730c", kill_on_drop: false }`
[INFO] [stdout] b8bc01ad12dab045b8cd8226983dc11f8755c674e7bf293be36ff9d85060730c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+f5209000832c9d3bc29c91f4daef4ca9f28dc797" "test" "--frozen" "--no-run" "--message-format=json" "--target" "wasm32-wasip1", kill_on_drop: false }`
[INFO] [stdout] d9735ab2dc4e21fc0c70f34ca7d63cc1885dec392bc432c712dbed8cf87ceaca
[INFO] running `Command { std: "docker" "start" "-a" "d9735ab2dc4e21fc0c70f34ca7d63cc1885dec392bc432c712dbed8cf87ceaca", kill_on_drop: false }`
[INFO] [stderr]    Compiling concurrency_book_1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         poll.poll(&mut events, None);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let _ = poll.poll(&mut events, None);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "d9735ab2dc4e21fc0c70f34ca7d63cc1885dec392bc432c712dbed8cf87ceaca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9735ab2dc4e21fc0c70f34ca7d63cc1885dec392bc432c712dbed8cf87ceaca", kill_on_drop: false }`
[INFO] [stdout] d9735ab2dc4e21fc0c70f34ca7d63cc1885dec392bc432c712dbed8cf87ceaca