[INFO] fetching crate swc_par_iter 1.0.0...
[INFO] building swc_par_iter-1.0.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate swc_par_iter 1.0.0 into /workspace/builds/worker-1-tc1/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-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate swc_par_iter 1.0.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded chili v0.2.0
[INFO] [stderr]   Downloaded swc_parallel v1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b26793ac30850f57e608115e671fceb4d3ded53ff0c5ea96f2267d23c4097d3d
[INFO] running `Command { std: "docker" "start" "-a" "b26793ac30850f57e608115e671fceb4d3ded53ff0c5ea96f2267d23c4097d3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b26793ac30850f57e608115e671fceb4d3ded53ff0c5ea96f2267d23c4097d3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b26793ac30850f57e608115e671fceb4d3ded53ff0c5ea96f2267d23c4097d3d", kill_on_drop: false }`
[INFO] [stdout] b26793ac30850f57e608115e671fceb4d3ded53ff0c5ea96f2267d23c4097d3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c34b9b30d21548ee8a34f0d8fd03271e4f1fbae2fa233e2ec54999f91e896846
[INFO] running `Command { std: "docker" "start" "-a" "c34b9b30d21548ee8a34f0d8fd03271e4f1fbae2fa233e2ec54999f91e896846", kill_on_drop: false }`
[INFO] [stderr]    Compiling swc_parallel v1.3.0
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling swc_par_iter v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.80s
[INFO] running `Command { std: "docker" "inspect" "c34b9b30d21548ee8a34f0d8fd03271e4f1fbae2fa233e2ec54999f91e896846", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c34b9b30d21548ee8a34f0d8fd03271e4f1fbae2fa233e2ec54999f91e896846", kill_on_drop: false }`
[INFO] [stdout] c34b9b30d21548ee8a34f0d8fd03271e4f1fbae2fa233e2ec54999f91e896846
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63763a8c532e56f0e3188aac7d1b5f333b8de8eae83ff9ed9876fd19a7bc6066
[INFO] running `Command { std: "docker" "start" "-a" "63763a8c532e56f0e3188aac7d1b5f333b8de8eae83ff9ed9876fd19a7bc6066", kill_on_drop: false }`
[INFO] [stderr]    Compiling chili v0.2.0
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling swc_parallel v1.3.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stderr]    Compiling swc_par_iter v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rand v0.8.5
[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 18.85s
[INFO] running `Command { std: "docker" "inspect" "63763a8c532e56f0e3188aac7d1b5f333b8de8eae83ff9ed9876fd19a7bc6066", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63763a8c532e56f0e3188aac7d1b5f333b8de8eae83ff9ed9876fd19a7bc6066", kill_on_drop: false }`
[INFO] [stdout] 63763a8c532e56f0e3188aac7d1b5f333b8de8eae83ff9ed9876fd19a7bc6066