[INFO] crate romio 0.3.0-alpha.1 is already in cache
[INFO] extracting crate romio 0.3.0-alpha.1 into work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/reg/romio/0.3.0-alpha.1
[INFO] extracting crate romio 0.3.0-alpha.1 into work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/reg/romio/0.3.0-alpha.1
[INFO] validating manifest of romio-0.3.0-alpha.1 on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of romio-0.3.0-alpha.1 on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing romio-0.3.0-alpha.1
[INFO] finished frobbing romio-0.3.0-alpha.1
[INFO] frobbed toml for romio-0.3.0-alpha.1 written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/reg/romio/0.3.0-alpha.1/Cargo.toml
[INFO] started frobbing romio-0.3.0-alpha.1
[INFO] finished frobbing romio-0.3.0-alpha.1
[INFO] frobbed toml for romio-0.3.0-alpha.1 written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/reg/romio/0.3.0-alpha.1/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking romio-0.3.0-alpha.1 against try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-3/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/reg/romio/0.3.0-alpha.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a941b1b0863215bbe0becc368434d27cd900cc7803e204e826a9ad8e0390eb4e
[INFO] running `"docker" "start" "-a" "a941b1b0863215bbe0becc368434d27cd900cc7803e204e826a9ad8e0390eb4e"`
[INFO] [stderr] Checking futures-core-preview v0.3.0-alpha.13
[INFO] [stderr] Checking rand_core v0.3.1
[INFO] [stderr] Compiling proc-macro-nested v0.1.3
[INFO] [stderr] Compiling proc-macro-hack v0.5.4
[INFO] [stderr] Checking rand_isaac v0.1.1
[INFO] [stderr] Checking rand_xorshift v0.1.1
[INFO] [stderr] Checking rand_hc v0.1.0
[INFO] [stderr] Checking rand_chacha v0.1.1
[INFO] [stderr] Checking rand v0.5.6
[INFO] [stderr] Checking futures-channel-preview v0.3.0-alpha.13
[INFO] [stderr] Checking futures-io-preview v0.3.0-alpha.13
[INFO] [stderr] Checking rand v0.6.5
[INFO] [stderr] Checking futures-sink-preview v0.3.0-alpha.13
[INFO] [stderr] Compiling futures-select-macro-preview v0.3.0-alpha.13
[INFO] [stderr] Checking parking_lot_core v0.3.1
[INFO] [stderr] Checking parking_lot v0.6.4
[INFO] [stderr] Checking futures-util-preview v0.3.0-alpha.13
[INFO] [stderr] Checking futures-executor-preview v0.3.0-alpha.13
[INFO] [stderr] Checking futures-preview v0.3.0-alpha.13
[INFO] [stderr] Checking romio v0.3.0-alpha.1 (/opt/crater/workdir)
[INFO] [stderr] error: unused doc comment
[INFO] [stderr] --> src/reactor/mod.rs:110:1
[INFO] [stderr] |
[INFO] [stderr] 110 | /// Tracks the reactor for the current execution context.
[INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 111 | thread_local!(static CURRENT_REACTOR: RefCell