[INFO] updating cached repository Lignum/steg
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Lignum/steg
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Lignum/steg" "work/ex/clippy-test-run/sources/stable/gh/Lignum/steg"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Lignum/steg'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Lignum/steg" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Lignum/steg"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Lignum/steg'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 80596ff4bb6d28607a7548ab2d03f2f3c677e325
[INFO] sha for GitHub repo Lignum/steg: 80596ff4bb6d28607a7548ab2d03f2f3c677e325
[INFO] validating manifest of Lignum/steg 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 Lignum/steg 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 Lignum/steg
[INFO] finished frobbing Lignum/steg
[INFO] frobbed toml for Lignum/steg written to work/ex/clippy-test-run/sources/stable/gh/Lignum/steg/Cargo.toml
[INFO] started frobbing Lignum/steg
[INFO] finished frobbing Lignum/steg
[INFO] frobbed toml for Lignum/steg written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Lignum/steg/Cargo.toml
[INFO] crate Lignum/steg has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting Lignum/steg 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/gh/Lignum/steg:/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] 0542838c609c863d6d880e3304b0c1286f757ddcec1d113450b28f5a321a5e1a
[INFO] running `"docker" "start" "-a" "0542838c609c863d6d880e3304b0c1286f757ddcec1d113450b28f5a321a5e1a"`
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]     Checking image v0.10.4
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking png v0.5.2
[INFO] [stderr]     Checking raster v0.2.0
[INFO] [stderr]     Checking steg v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `1`
[INFO] [stderr]   --> src/hide.rs:21:26
[INFO] [stderr]    |
[INFO] [stderr] 21 |             c.r = c.r & !(1 << 0) | (d << 0);
[INFO] [stderr]    |                          ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_op)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `d`
[INFO] [stderr]   --> src/hide.rs:21:37
[INFO] [stderr]    |
[INFO] [stderr] 21 |             c.r = c.r & !(1 << 0) | (d << 0);
[INFO] [stderr]    |                                     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: The function/method `write_all` doesn't need a mutable reference
[INFO] [stderr]   --> src/main.rs:35:20
[INFO] [stderr]    |
[INFO] [stderr] 35 |     file.write_all(&mut data)
[INFO] [stderr]    |                    ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_mut_passed)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_mut_passed
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `1`
[INFO] [stderr]   --> src/hide.rs:21:26
[INFO] [stderr]    |
[INFO] [stderr] 21 |             c.r = c.r & !(1 << 0) | (d << 0);
[INFO] [stderr]    |                          ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::identity_op)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: the operation is ineffective. Consider reducing it to `d`
[INFO] [stderr]   --> src/hide.rs:21:37
[INFO] [stderr]    |
[INFO] [stderr] 21 |             c.r = c.r & !(1 << 0) | (d << 0);
[INFO] [stderr]    |                                     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#identity_op
[INFO] [stderr] 
[INFO] [stderr] warning: The function/method `write_all` doesn't need a mutable reference
[INFO] [stderr]   --> src/main.rs:35:20
[INFO] [stderr]    |
[INFO] [stderr] 35 |     file.write_all(&mut data)
[INFO] [stderr]    |                    ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_mut_passed)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_mut_passed
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.68s
[INFO] running `"docker" "inspect" "0542838c609c863d6d880e3304b0c1286f757ddcec1d113450b28f5a321a5e1a"`
[INFO] running `"docker" "rm" "-f" "0542838c609c863d6d880e3304b0c1286f757ddcec1d113450b28f5a321a5e1a"`
[INFO] [stdout] 0542838c609c863d6d880e3304b0c1286f757ddcec1d113450b28f5a321a5e1a