[INFO] crate parity-crypto 0.2.0 is already in cache [INFO] extracting crate parity-crypto 0.2.0 into work/ex/clippy-test-run/sources/stable/reg/parity-crypto/0.2.0 [INFO] extracting crate parity-crypto 0.2.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/parity-crypto/0.2.0 [INFO] validating manifest of parity-crypto-0.2.0 on toolchain stable [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of parity-crypto-0.2.0 on toolchain stable+rustflags=-Dclippy::into_iter_on_array [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing parity-crypto-0.2.0 [INFO] finished frobbing parity-crypto-0.2.0 [INFO] frobbed toml for parity-crypto-0.2.0 written to work/ex/clippy-test-run/sources/stable/reg/parity-crypto/0.2.0/Cargo.toml [INFO] started frobbing parity-crypto-0.2.0 [INFO] finished frobbing parity-crypto-0.2.0 [INFO] frobbed toml for parity-crypto-0.2.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/parity-crypto/0.2.0/Cargo.toml [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] linting parity-crypto-0.2.0 against stable for clippy-test-run [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-3/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/parity-crypto/0.2.0:/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" "+stable" "clippy" "--frozen" "--all" "--all-targets"` [INFO] [stdout] cc868df988a17f6c65ae4b5e86c41aefa292a2410fa4496940cc50378872d87d [INFO] running `"docker" "start" "-a" "cc868df988a17f6c65ae4b5e86c41aefa292a2410fa4496940cc50378872d87d"` [INFO] [stderr] Checking parity-crypto v0.2.0 (/opt/crater/workdir) [INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change [INFO] [stderr] --> src/scrypt.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | if log_n as u32 >= r * 16 { [INFO] [stderr] | ^^^^^^^^^^^^ help: try: `u32::from(log_n)` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::cast_lossless)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change [INFO] [stderr] --> src/scrypt.rs:28:5 [INFO] [stderr] | [INFO] [stderr] 28 | if p as u64 > ((u32::max_value() as u64 - 1) * 32)/(128 * (r as u64)) { [INFO] [stderr] | ^^^^^^^^ help: try: `u64::from(p)` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change [INFO] [stderr] --> src/scrypt.rs:28:18 [INFO] [stderr] | [INFO] [stderr] 28 | if p as u64 > ((u32::max_value() as u64 - 1) * 32)/(128 * (r as u64)) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(u32::max_value())` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change [INFO] [stderr] --> src/scrypt.rs:28:60 [INFO] [stderr] | [INFO] [stderr] 28 | if p as u64 > ((u32::max_value() as u64 - 1) * 32)/(128 * (r as u64)) { [INFO] [stderr] | ^^^^^^^^^^ help: try: `u64::from(r)` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: casting u8 to u32 may become silently lossy if types change [INFO] [stderr] --> src/scrypt.rs:24:5 [INFO] [stderr] | [INFO] [stderr] 24 | if log_n as u32 >= r * 16 { [INFO] [stderr] | ^^^^^^^^^^^^ help: try: `u32::from(log_n)` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(clippy::cast_lossless)] on by default [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change [INFO] [stderr] --> src/scrypt.rs:28:5 [INFO] [stderr] | [INFO] [stderr] 28 | if p as u64 > ((u32::max_value() as u64 - 1) * 32)/(128 * (r as u64)) { [INFO] [stderr] | ^^^^^^^^ help: try: `u64::from(p)` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change [INFO] [stderr] --> src/scrypt.rs:28:18 [INFO] [stderr] | [INFO] [stderr] 28 | if p as u64 > ((u32::max_value() as u64 - 1) * 32)/(128 * (r as u64)) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(u32::max_value())` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change [INFO] [stderr] --> src/scrypt.rs:28:60 [INFO] [stderr] | [INFO] [stderr] 28 | if p as u64 > ((u32::max_value() as u64 - 1) * 32)/(128 * (r as u64)) { [INFO] [stderr] | ^^^^^^^^^^ help: try: `u64::from(r)` [INFO] [stderr] | [INFO] [stderr] = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.63s [INFO] running `"docker" "inspect" "cc868df988a17f6c65ae4b5e86c41aefa292a2410fa4496940cc50378872d87d"` [INFO] running `"docker" "rm" "-f" "cc868df988a17f6c65ae4b5e86c41aefa292a2410fa4496940cc50378872d87d"` [INFO] [stdout] cc868df988a17f6c65ae4b5e86c41aefa292a2410fa4496940cc50378872d87d