[INFO] crate indexed_bitvec_core 2.0.0 is already in cache
[INFO] extracting crate indexed_bitvec_core 2.0.0 into work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/reg/indexed_bitvec_core/2.0.0
[INFO] extracting crate indexed_bitvec_core 2.0.0 into work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/reg/indexed_bitvec_core/2.0.0
[INFO] validating manifest of indexed_bitvec_core-2.0.0 on toolchain master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of indexed_bitvec_core-2.0.0 on toolchain try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing indexed_bitvec_core-2.0.0
[INFO] finished frobbing indexed_bitvec_core-2.0.0
[INFO] frobbed toml for indexed_bitvec_core-2.0.0 written to work/ex/pr-57321/sources/master#c0bbc3927e28c22edefe6a1353b5ecc95ea9a104/reg/indexed_bitvec_core/2.0.0/Cargo.toml
[INFO] started frobbing indexed_bitvec_core-2.0.0
[INFO] finished frobbing indexed_bitvec_core-2.0.0
[INFO] frobbed toml for indexed_bitvec_core-2.0.0 written to work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/reg/indexed_bitvec_core/2.0.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0bbc3927e28c22edefe6a1353b5ecc95ea9a104-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking indexed_bitvec_core-2.0.0 against try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0 for pr-57321
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57321/worker-4/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57321/sources/try#b9139d2caca1db46014a9c302d5c47cfae0d8ae0/reg/indexed_bitvec_core/2.0.0:/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" "+b9139d2caca1db46014a9c302d5c47cfae0d8ae0-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5a36a6eeb1e207a48b1cafa1717fe39425f9e159b328a537f23144a7538cc3e7
[INFO] running `"docker" "start" "-a" "5a36a6eeb1e207a48b1cafa1717fe39425f9e159b328a537f23144a7538cc3e7"`
[INFO] [stderr]     Checking indexed_bitvec_core v2.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: associated const is never used: `ZEROS`
[INFO] [stderr]   --> src/word.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub const ZEROS: Self = Word(0);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get`
[INFO] [stderr]   --> src/word.rs:55:5
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn get(self, idx: usize) -> Option<bool> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_copy`
[INFO] [stderr]   --> src/word.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     pub fn set_copy(self, idx: usize, to: bool) -> Option<Self> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set`
[INFO] [stderr]   --> src/word.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     pub fn set(&mut self, idx: usize, to: bool) -> Option<()> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `count_zeros`
[INFO] [stderr]    --> src/word.rs:126:5
[INFO] [stderr]     |
[INFO] [stderr] 126 |     pub fn count_zeros(self) -> u32 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `rank_zeros`
[INFO] [stderr]    --> src/word.rs:147:5
[INFO] [stderr]     |
[INFO] [stderr] 147 |     pub fn rank_zeros(self, idx: usize) -> Option<u32> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `select_zeros`
[INFO] [stderr]    --> src/word.rs:193:5
[INFO] [stderr]     |
[INFO] [stderr] 193 |     pub fn select_zeros(self, nth: u32) -> Option<u32> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated const is never used: `ZEROS`
[INFO] [stderr]   --> src/word.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub const ZEROS: Self = Word(0);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `"docker" "inspect" "5a36a6eeb1e207a48b1cafa1717fe39425f9e159b328a537f23144a7538cc3e7"`
[INFO] running `"docker" "rm" "-f" "5a36a6eeb1e207a48b1cafa1717fe39425f9e159b328a537f23144a7538cc3e7"`
[INFO] [stdout] 5a36a6eeb1e207a48b1cafa1717fe39425f9e159b328a537f23144a7538cc3e7