[INFO] fetching crate async_buf_reader_utils 0.1.0...
[INFO] checking async_buf_reader_utils-0.1.0 against master#0d56e340472882fa673d4b98d0802b9a799879d0 for pr-101692
[INFO] extracting crate async_buf_reader_utils 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate async_buf_reader_utils 0.1.0 on toolchain 0d56e340472882fa673d4b98d0802b9a799879d0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d56e340472882fa673d4b98d0802b9a799879d0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async_buf_reader_utils 0.1.0
[INFO] finished tweaking crates.io crate async_buf_reader_utils 0.1.0
[INFO] tweaked toml for crates.io crate async_buf_reader_utils 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d56e340472882fa673d4b98d0802b9a799879d0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d56e340472882fa673d4b98d0802b9a799879d0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+0d56e340472882fa673d4b98d0802b9a799879d0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c6edb4e2c5d1886c8345b89a17e131b6495292eef6557ebb7fb5add6dca164c
[INFO] running `Command { std: "docker" "start" "-a" "3c6edb4e2c5d1886c8345b89a17e131b6495292eef6557ebb7fb5add6dca164c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c6edb4e2c5d1886c8345b89a17e131b6495292eef6557ebb7fb5add6dca164c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c6edb4e2c5d1886c8345b89a17e131b6495292eef6557ebb7fb5add6dca164c", kill_on_drop: false }`
[INFO] [stdout] 3c6edb4e2c5d1886c8345b89a17e131b6495292eef6557ebb7fb5add6dca164c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+0d56e340472882fa673d4b98d0802b9a799879d0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cbb7089fdf86d18f99ad88555603681490aa0e38bd8f2323309c446280a822d
[INFO] running `Command { std: "docker" "start" "-a" "7cbb7089fdf86d18f99ad88555603681490aa0e38bd8f2323309c446280a822d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.4
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[INFO] [stderr]    Compiling futures-core v0.3.24
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[INFO] [stderr]    Compiling version_check v0.9.4
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[INFO] [stderr]    Compiling log v0.4.17
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[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking waker-fn v1.1.0
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[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]    Compiling futures-task v0.3.24
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[INFO] [stderr]     Checking futures-sink v0.3.24
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[INFO] [stderr]    Compiling ctor v0.1.23
[INFO] [stderr]    Compiling futures-macro v0.3.24
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking async-global-executor v2.3.0
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[INFO] [stderr]     Checking futures-executor v0.3.24
[INFO] [stderr]     Checking futures v0.3.24
[INFO] [stderr]     Checking async_buf_reader_utils v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `fs::File`, `task`
[INFO] [stdout]   --> src/read_until_index_found/mod.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 | use async_std::{fs::File, task};
[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 [unoptimized + debuginfo] target(s) in 8.00s
[INFO] running `Command { std: "docker" "inspect" "7cbb7089fdf86d18f99ad88555603681490aa0e38bd8f2323309c446280a822d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cbb7089fdf86d18f99ad88555603681490aa0e38bd8f2323309c446280a822d", kill_on_drop: false }`
[INFO] [stdout] 7cbb7089fdf86d18f99ad88555603681490aa0e38bd8f2323309c446280a822d