[INFO] fetching crate for-loop-iterator 0.2.2...
[INFO] checking for-loop-iterator-0.2.2 against master#0f6e1ae67854c3c44726e8376144c16b465fe7c6 for pr-129392
[INFO] extracting crate for-loop-iterator 0.2.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate for-loop-iterator 0.2.2 on toolchain 0f6e1ae67854c3c44726e8376144c16b465fe7c6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate for-loop-iterator 0.2.2
[INFO] finished tweaking crates.io crate for-loop-iterator 0.2.2
[INFO] tweaked toml for crates.io crate for-loop-iterator 0.2.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b4d2a6eb885951e39781b15a356733fc92bf9e5e449f41c726eb68b930b9dce
[INFO] running `Command { std: "docker" "start" "-a" "9b4d2a6eb885951e39781b15a356733fc92bf9e5e449f41c726eb68b930b9dce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b4d2a6eb885951e39781b15a356733fc92bf9e5e449f41c726eb68b930b9dce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b4d2a6eb885951e39781b15a356733fc92bf9e5e449f41c726eb68b930b9dce", kill_on_drop: false }`
[INFO] [stdout] 9b4d2a6eb885951e39781b15a356733fc92bf9e5e449f41c726eb68b930b9dce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0f6e1ae67854c3c44726e8376144c16b465fe7c6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1580343984db8474bae2168961d54181a3232f0fcabd3ecdec666dfbfde6dab
[INFO] running `Command { std: "docker" "start" "-a" "a1580343984db8474bae2168961d54181a3232f0fcabd3ecdec666dfbfde6dab", kill_on_drop: false }`
[INFO] [stderr]     Checking for-loop-iterator v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `ops::Add` and `process::Output`
[INFO] [stdout]  --> src/test.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{ops::Add, process::Output};
[INFO] [stdout]   |           ^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "a1580343984db8474bae2168961d54181a3232f0fcabd3ecdec666dfbfde6dab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1580343984db8474bae2168961d54181a3232f0fcabd3ecdec666dfbfde6dab", kill_on_drop: false }`
[INFO] [stdout] a1580343984db8474bae2168961d54181a3232f0fcabd3ecdec666dfbfde6dab