[INFO] fetching crate swc_par_iter 1.0.0...
[INFO] building swc_par_iter-1.0.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate swc_par_iter 1.0.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate swc_par_iter 1.0.0
[INFO] finished tweaking crates.io crate swc_par_iter 1.0.0
[INFO] tweaked toml for crates.io crate swc_par_iter 1.0.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate swc_par_iter 1.0.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 19 packages to latest compatible versions
[INFO] [stderr]       Adding chili v0.2.0 (available: v0.2.1)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] [stderr]       Adding rand_xorshift v0.3.0 (available: v0.4.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d8af551b67309172923d952f6267d64824ec09c3b7a616ce2bd9e52ac1dc20c
[INFO] running `Command { std: "docker" "start" "-a" "1d8af551b67309172923d952f6267d64824ec09c3b7a616ce2bd9e52ac1dc20c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d8af551b67309172923d952f6267d64824ec09c3b7a616ce2bd9e52ac1dc20c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d8af551b67309172923d952f6267d64824ec09c3b7a616ce2bd9e52ac1dc20c", kill_on_drop: false }`
[INFO] [stdout] 1d8af551b67309172923d952f6267d64824ec09c3b7a616ce2bd9e52ac1dc20c
[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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70a7715d4740c6eec60e810a6f1bb5e63cb2637c607d515e4598b67c56bad93b
[INFO] running `Command { std: "docker" "start" "-a" "70a7715d4740c6eec60e810a6f1bb5e63cb2637c607d515e4598b67c56bad93b", kill_on_drop: false }`
[INFO] [stderr]    Compiling swc_parallel v1.3.0
[INFO] [stderr]    Compiling swc_par_iter v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.27s
[INFO] running `Command { std: "docker" "inspect" "70a7715d4740c6eec60e810a6f1bb5e63cb2637c607d515e4598b67c56bad93b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70a7715d4740c6eec60e810a6f1bb5e63cb2637c607d515e4598b67c56bad93b", kill_on_drop: false }`
[INFO] [stdout] 70a7715d4740c6eec60e810a6f1bb5e63cb2637c607d515e4598b67c56bad93b
[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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ecec704de6233a536876fa83e1d0bb5e6f591e10a2052ae937b1184ba2e97e39
[INFO] running `Command { std: "docker" "start" "-a" "ecec704de6233a536876fa83e1d0bb5e6f591e10a2052ae937b1184ba2e97e39", kill_on_drop: false }`
[INFO] [stderr]    Compiling chili v0.2.0
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stderr]    Compiling swc_parallel v1.3.0
[INFO] [stderr]    Compiling swc_par_iter v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]     --> src/iter/test.rs:1557:23
[INFO] [stdout]      |
[INFO] [stdout] 1557 |         .flat_map(|i| (0..i))
[INFO] [stdout]      |                       ^    ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1557 -         .flat_map(|i| (0..i))
[INFO] [stdout] 1557 +         .flat_map(|i| 0..i )
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]     --> src/iter/test.rs:1561:23
[INFO] [stdout]      |
[INFO] [stdout] 1561 |         .flat_map(|i| (0..i))
[INFO] [stdout]      |                       ^    ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 1561 -         .flat_map(|i| (0..i))
[INFO] [stdout] 1561 +         .flat_map(|i| 0..i )
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 21.84s
[INFO] running `Command { std: "docker" "inspect" "ecec704de6233a536876fa83e1d0bb5e6f591e10a2052ae937b1184ba2e97e39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecec704de6233a536876fa83e1d0bb5e6f591e10a2052ae937b1184ba2e97e39", kill_on_drop: false }`
[INFO] [stdout] ecec704de6233a536876fa83e1d0bb5e6f591e10a2052ae937b1184ba2e97e39
