[INFO] crate pagecache 0.17.0 is already in cache
[INFO] extracting crate pagecache 0.17.0 into work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/pagecache/0.17.0
[INFO] extracting crate pagecache 0.17.0 into work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/pagecache/0.17.0
[INFO] validating manifest of pagecache-0.17.0 on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of pagecache-0.17.0 on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing pagecache-0.17.0
[INFO] finished frobbing pagecache-0.17.0
[INFO] frobbed toml for pagecache-0.17.0 written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/pagecache/0.17.0/Cargo.toml
[INFO] started frobbing pagecache-0.17.0
[INFO] finished frobbing pagecache-0.17.0
[INFO] frobbed toml for pagecache-0.17.0 written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/pagecache/0.17.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking pagecache-0.17.0 against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-3/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/pagecache/0.17.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b1f9ed6e76b50b161e8181c399bc29a550d5d47baac1baf44a98e5e56bb6aca4
[INFO] running `"docker" "start" "-a" "b1f9ed6e76b50b161e8181c399bc29a550d5d47baac1baf44a98e5e56bb6aca4"`
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking pagecache v0.17.0 (/opt/crater/workdir)
[INFO] [stderr]     Checking proptest v0.8.7
[INFO] [stderr] warning: unused variable: `new`
[INFO] [stderr]    --> src/tx.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |         new: P,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_new`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pid`
[INFO] [stderr]    --> src/tx.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |         pid: PageId,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_pid`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `old`
[INFO] [stderr]    --> src/tx.rs:118:9
[INFO] [stderr]     |
[INFO] [stderr] 118 |         old: PagePtr<'g, P>,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_old`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pid`
[INFO] [stderr]    --> src/tx.rs:129:9
[INFO] [stderr]     |
[INFO] [stderr] 129 |         pid: PageId,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_pid`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `old`
[INFO] [stderr]    --> src/tx.rs:130:9
[INFO] [stderr]     |
[INFO] [stderr] 130 |         old: PagePtr<'g, P>,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_old`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `new`
[INFO] [stderr]    --> src/tx.rs:131:9
[INFO] [stderr]     |
[INFO] [stderr] 131 |         new: P,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_new`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pid`
[INFO] [stderr]    --> src/tx.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |         pid: PageId,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_pid`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `old`
[INFO] [stderr]    --> src/tx.rs:143:9
[INFO] [stderr]     |
[INFO] [stderr] 143 |         old: PagePtr<'g, P>,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_old`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `new`
[INFO] [stderr]    --> src/tx.rs:144:9
[INFO] [stderr]     |
[INFO] [stderr] 144 |         new: P,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_new`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pid`
[INFO] [stderr]    --> src/tx.rs:152:9
[INFO] [stderr]     |
[INFO] [stderr] 152 |         pid: PageId,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_pid`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `max_trailer_stable_lsn`
[INFO] [stderr]   --> src/iobuf.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub(crate) max_trailer_stable_lsn: AtomicLsn,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `pending`
[INFO] [stderr]    --> src/pagecache.rs:413:5
[INFO] [stderr]     |
[INFO] [stderr] 413 |     pending: AtomicLsn,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `pending`
[INFO] [stderr]   --> src/tx.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     pub(crate) pending: FastMap8<PageId, Update<P>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Checking model v0.1.2
[INFO] [stderr] warning: unused variable: `new`
[INFO] [stderr]    --> src/tx.rs:109:9
[INFO] [stderr]     |
[INFO] [stderr] 109 |         new: P,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_new`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pid`
[INFO] [stderr]    --> src/tx.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |         pid: PageId,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_pid`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `old`
[INFO] [stderr]    --> src/tx.rs:118:9
[INFO] [stderr]     |
[INFO] [stderr] 118 |         old: PagePtr<'g, P>,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_old`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pid`
[INFO] [stderr]    --> src/tx.rs:129:9
[INFO] [stderr]     |
[INFO] [stderr] 129 |         pid: PageId,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_pid`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `old`
[INFO] [stderr]    --> src/tx.rs:130:9
[INFO] [stderr]     |
[INFO] [stderr] 130 |         old: PagePtr<'g, P>,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_old`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `new`
[INFO] [stderr]    --> src/tx.rs:131:9
[INFO] [stderr]     |
[INFO] [stderr] 131 |         new: P,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_new`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pid`
[INFO] [stderr]    --> src/tx.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |         pid: PageId,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_pid`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `old`
[INFO] [stderr]    --> src/tx.rs:143:9
[INFO] [stderr]     |
[INFO] [stderr] 143 |         old: PagePtr<'g, P>,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_old`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `new`
[INFO] [stderr]    --> src/tx.rs:144:9
[INFO] [stderr]     |
[INFO] [stderr] 144 |         new: P,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_new`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pid`
[INFO] [stderr]    --> src/tx.rs:152:9
[INFO] [stderr]     |
[INFO] [stderr] 152 |         pid: PageId,
[INFO] [stderr]     |         ^^^ help: consider prefixing with an underscore: `_pid`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `max_trailer_stable_lsn`
[INFO] [stderr]   --> src/iobuf.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub(crate) max_trailer_stable_lsn: AtomicLsn,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `pending`
[INFO] [stderr]    --> src/pagecache.rs:413:5
[INFO] [stderr]     |
[INFO] [stderr] 413 |     pending: AtomicLsn,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `pending`
[INFO] [stderr]   --> src/tx.rs:70:5
[INFO] [stderr]    |
[INFO] [stderr] 70 |     pub(crate) pending: FastMap8<PageId, Update<P>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.58s
[INFO] running `"docker" "inspect" "b1f9ed6e76b50b161e8181c399bc29a550d5d47baac1baf44a98e5e56bb6aca4"`
[INFO] running `"docker" "rm" "-f" "b1f9ed6e76b50b161e8181c399bc29a550d5d47baac1baf44a98e5e56bb6aca4"`
[INFO] [stdout] b1f9ed6e76b50b161e8181c399bc29a550d5d47baac1baf44a98e5e56bb6aca4