[INFO] fetching crate look_ahead_items 0.1.1...
[INFO] testing look_ahead_items-0.1.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate look_ahead_items 0.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate look_ahead_items 0.1.1
[INFO] finished tweaking crates.io crate look_ahead_items 0.1.1
[INFO] tweaked toml for crates.io crate look_ahead_items 0.1.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate look_ahead_items 0.1.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate look_ahead_items 0.1.1 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" "+1.90.0" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b67afbdcf7e7b12f8d95844d8ce4cacd58cdffaebadb57550b90f58ebc8c76ba
[INFO] running `Command { std: "docker" "start" "-a" "b67afbdcf7e7b12f8d95844d8ce4cacd58cdffaebadb57550b90f58ebc8c76ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b67afbdcf7e7b12f8d95844d8ce4cacd58cdffaebadb57550b90f58ebc8c76ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b67afbdcf7e7b12f8d95844d8ce4cacd58cdffaebadb57550b90f58ebc8c76ba", kill_on_drop: false }`
[INFO] [stdout] b67afbdcf7e7b12f8d95844d8ce4cacd58cdffaebadb57550b90f58ebc8c76ba
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b267ce76e223c08320478ae874a2ef37edea27a1935cd4b44563f5972d071034
[INFO] running `Command { std: "docker" "start" "-a" "b267ce76e223c08320478ae874a2ef37edea27a1935cd4b44563f5972d071034", kill_on_drop: false }`
[INFO] [stderr]    Compiling look_ahead_items v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/items_builder.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |             /// 先読みする文字数。
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 13 |             look_ahead_size: 2,
[INFO] [stdout]    |             ------------------ rustdoc does not generate documentation for expression fields
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "b267ce76e223c08320478ae874a2ef37edea27a1935cd4b44563f5972d071034", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b267ce76e223c08320478ae874a2ef37edea27a1935cd4b44563f5972d071034", kill_on_drop: false }`
[INFO] [stdout] b267ce76e223c08320478ae874a2ef37edea27a1935cd4b44563f5972d071034
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a5c9dd4dcfe87c87fa64112cf1dece70d52390d175a4713aebbc741c8d89132
[INFO] running `Command { std: "docker" "start" "-a" "8a5c9dd4dcfe87c87fa64112cf1dece70d52390d175a4713aebbc741c8d89132", kill_on_drop: false }`
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/items_builder.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |             /// 先読みする文字数。
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 13 |             look_ahead_size: 2,
[INFO] [stdout]    |             ------------------ rustdoc does not generate documentation for expression fields
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling look_ahead_items v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/items_builder.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |             /// 先読みする文字数。
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 13 |             look_ahead_size: 2,
[INFO] [stdout]    |             ------------------ rustdoc does not generate documentation for expression fields
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "8a5c9dd4dcfe87c87fa64112cf1dece70d52390d175a4713aebbc741c8d89132", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a5c9dd4dcfe87c87fa64112cf1dece70d52390d175a4713aebbc741c8d89132", kill_on_drop: false }`
[INFO] [stdout] 8a5c9dd4dcfe87c87fa64112cf1dece70d52390d175a4713aebbc741c8d89132
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 809361ac94cbae32d653b320a81f67d48885963a43df7f9734ae5a67ad2221ea
[INFO] running `Command { std: "docker" "start" "-a" "809361ac94cbae32d653b320a81f67d48885963a43df7f9734ae5a67ad2221ea", kill_on_drop: false }`
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/items_builder.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 |             /// 先読みする文字数。
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 13 |             look_ahead_size: 2,
[INFO] [stderr]    |             ------------------ rustdoc does not generate documentation for expression fields
[INFO] [stderr]    |
[INFO] [stderr]    = help: use `//` for a plain comment
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `look_ahead_items` (lib) generated 1 warning
[INFO] [stderr] warning: `look_ahead_items` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/look_ahead_items-da7e96ad9a725df4)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests look_ahead_items
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "809361ac94cbae32d653b320a81f67d48885963a43df7f9734ae5a67ad2221ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "809361ac94cbae32d653b320a81f67d48885963a43df7f9734ae5a67ad2221ea", kill_on_drop: false }`
[INFO] [stdout] 809361ac94cbae32d653b320a81f67d48885963a43df7f9734ae5a67ad2221ea