[INFO] crate qcow2 0.1.2 is already in cache
[INFO] extracting crate qcow2 0.1.2 into work/ex/clippy-test-run/sources/stable/reg/qcow2/0.1.2
[INFO] extracting crate qcow2 0.1.2 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/qcow2/0.1.2
[INFO] validating manifest of qcow2-0.1.2 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 qcow2-0.1.2 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 qcow2-0.1.2
[INFO] finished frobbing qcow2-0.1.2
[INFO] frobbed toml for qcow2-0.1.2 written to work/ex/clippy-test-run/sources/stable/reg/qcow2/0.1.2/Cargo.toml
[INFO] started frobbing qcow2-0.1.2
[INFO] finished frobbing qcow2-0.1.2
[INFO] frobbed toml for qcow2-0.1.2 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/qcow2/0.1.2/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 qcow2-0.1.2 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-6/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/qcow2/0.1.2:/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] bdf688db59fa2bacfab3e7e4affc3ba4cbdc6a233bb3af3899decfe939bc107f
[INFO] running `"docker" "start" "-a" "bdf688db59fa2bacfab3e7e4affc3ba4cbdc6a233bb3af3899decfe939bc107f"`
[INFO] [stderr]     Checking linked-hash-map v0.0.9
[INFO] [stderr]     Checking positioned-io v0.2.2
[INFO] [stderr]     Checking lru-cache v0.0.7
[INFO] [stderr]     Checking qcow2 v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/extension.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |             code: code,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `code`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/extension.rs:110:25
[INFO] [stderr]     |
[INFO] [stderr] 110 |                         kind: kind,
[INFO] [stderr]     |                         ^^^^^^^^^^ help: replace it with: `kind`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/extension.rs:111:25
[INFO] [stderr]     |
[INFO] [stderr] 111 |                         bit: bit,
[INFO] [stderr]     |                         ^^^^^^^^ help: replace it with: `bit`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/extension.rs:112:25
[INFO] [stderr]     |
[INFO] [stderr] 112 |                         name: name,
[INFO] [stderr]     |                         ^^^^^^^^^^ help: replace it with: `name`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/feature.rs:23:13
[INFO] [stderr]    |
[INFO] [stderr] 23 |             kind: kind,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `kind`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/feature.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |             names: names,
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `names`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/read.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |             pos: pos,
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `pos`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/read.rs:94:17
[INFO] [stderr]    |
[INFO] [stderr] 94 |                 pos: pos,
[INFO] [stderr]    |                 ^^^^^^^^ help: replace it with: `pos`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/read.rs:95:17
[INFO] [stderr]    |
[INFO] [stderr] 95 |                 cow: cow,
[INFO] [stderr]    |                 ^^^^^^^^ help: replace it with: `cow`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/read.rs:96:17
[INFO] [stderr]    |
[INFO] [stderr] 96 |                 size: size,
[INFO] [stderr]    |                 ^^^^^^^^^^ help: replace it with: `size`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/read.rs:105:21
[INFO] [stderr]     |
[INFO] [stderr] 105 |                     pos: pos,
[INFO] [stderr]     |                     ^^^^^^^^ help: replace it with: `pos`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/read.rs:106:21
[INFO] [stderr]     |
[INFO] [stderr] 106 |                     cow: cow,
[INFO] [stderr]     |                     ^^^^^^^^ help: replace it with: `cow`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/read.rs:186:21
[INFO] [stderr]     |
[INFO] [stderr] 186 |         Ok(Reader { q: q, l1: l1 })
[INFO] [stderr]     |                     ^^^^ help: replace it with: `q`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/read.rs:186:27
[INFO] [stderr]     |
[INFO] [stderr] 186 |         Ok(Reader { q: q, l1: l1 })
[INFO] [stderr]     |                           ^^^^^^ help: replace it with: `l1`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:110:13
[INFO] [stderr]     |
[INFO] [stderr] 110 |             io: io,
[INFO] [stderr]     |             ^^^^^^ help: replace it with: `io`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/extension.rs:30:13
[INFO] [stderr]    |
[INFO] [stderr] 30 |             code: code,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `code`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::redundant_field_names)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/extension.rs:110:25
[INFO] [stderr]     |
[INFO] [stderr] 110 |                         kind: kind,
[INFO] [stderr]     |                         ^^^^^^^^^^ help: replace it with: `kind`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/extension.rs:111:25
[INFO] [stderr]     |
[INFO] [stderr] 111 |                         bit: bit,
[INFO] [stderr]     |                         ^^^^^^^^ help: replace it with: `bit`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/extension.rs:112:25
[INFO] [stderr]     |
[INFO] [stderr] 112 |                         name: name,
[INFO] [stderr]     |                         ^^^^^^^^^^ help: replace it with: `name`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/feature.rs:23:13
[INFO] [stderr]    |
[INFO] [stderr] 23 |             kind: kind,
[INFO] [stderr]    |             ^^^^^^^^^^ help: replace it with: `kind`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/feature.rs:24:13
[INFO] [stderr]    |
[INFO] [stderr] 24 |             names: names,
[INFO] [stderr]    |             ^^^^^^^^^^^^ help: replace it with: `names`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/read.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |             pos: pos,
[INFO] [stderr]    |             ^^^^^^^^ help: replace it with: `pos`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/read.rs:94:17
[INFO] [stderr]    |
[INFO] [stderr] 94 |                 pos: pos,
[INFO] [stderr]    |                 ^^^^^^^^ help: replace it with: `pos`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/read.rs:95:17
[INFO] [stderr]    |
[INFO] [stderr] 95 |                 cow: cow,
[INFO] [stderr]    |                 ^^^^^^^^ help: replace it with: `cow`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]   --> src/read.rs:96:17
[INFO] [stderr]    |
[INFO] [stderr] 96 |                 size: size,
[INFO] [stderr]    |                 ^^^^^^^^^^ help: replace it with: `size`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/read.rs:105:21
[INFO] [stderr]     |
[INFO] [stderr] 105 |                     pos: pos,
[INFO] [stderr]     |                     ^^^^^^^^ help: replace it with: `pos`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/read.rs:106:21
[INFO] [stderr]     |
[INFO] [stderr] 106 |                     cow: cow,
[INFO] [stderr]     |                     ^^^^^^^^ help: replace it with: `cow`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/read.rs:186:21
[INFO] [stderr]     |
[INFO] [stderr] 186 |         Ok(Reader { q: q, l1: l1 })
[INFO] [stderr]     |                     ^^^^ help: replace it with: `q`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/read.rs:186:27
[INFO] [stderr]     |
[INFO] [stderr] 186 |         Ok(Reader { q: q, l1: l1 })
[INFO] [stderr]     |                           ^^^^^^ help: replace it with: `l1`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: redundant field names in struct initialization
[INFO] [stderr]    --> src/lib.rs:110:13
[INFO] [stderr]     |
[INFO] [stderr] 110 |             io: io,
[INFO] [stderr]     |             ^^^^^^ help: replace it with: `io`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/extension.rs:14:46
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub const EXT_CODE_FEATURE_NAME_TABLE: u32 = 0x6803f857;
[INFO] [stderr]    |                                              ^^^^^^^^^^ help: consider: `0x6803_f857`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/header.rs:21:20
[INFO] [stderr]    |
[INFO] [stderr] 21 | const MAGIC: u32 = 0x514649fb;
[INFO] [stderr]    |                    ^^^^^^^^^^ help: consider: `0x5146_49fb`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stderr]  --> src/extension.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/extension.rs:14:46
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub const EXT_CODE_FEATURE_NAME_TABLE: u32 = 0x6803f857;
[INFO] [stderr]    |                                              ^^^^^^^^^^ help: consider: `0x6803_f857`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unreadable_literal)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: long literal lacking separators
[INFO] [stderr]   --> src/header.rs:21:20
[INFO] [stderr]    |
[INFO] [stderr] 21 | const MAGIC: u32 = 0x514649fb;
[INFO] [stderr]    |                    ^^^^^^^^^^ help: consider: `0x5146_49fb`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::ascii::AsciiExt': use inherent methods instead
[INFO] [stderr]  --> src/extension.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]  --> src/extension.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `byteorder::ReadBytesExt`
[INFO] [stderr]  --> src/extension.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use byteorder::ReadBytesExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/header.rs:207:21
[INFO] [stderr]     |
[INFO] [stderr] 207 |                 let mut ext = self.v3.extension(ext_code);
[INFO] [stderr]     |                     ----^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/read.rs:146:58
[INFO] [stderr]     |
[INFO] [stderr] 146 |     fn guest_read<T: ReadIntAt>(&self, l1: &T, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stderr]     |                                                          ----^^^
[INFO] [stderr]     |                                                          |
[INFO] [stderr]     |                                                          help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/read.rs:193:33
[INFO] [stderr]     |
[INFO] [stderr] 193 |     fn read_at(&self, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stderr]     |                                 ----^^^
[INFO] [stderr]     |                                 |
[INFO] [stderr]     |                                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]   --> src/extension.rs:95:33
[INFO] [stderr]    |
[INFO] [stderr] 95 |                       let chars = buf.into_iter()
[INFO] [stderr]    |  _________________________________^
[INFO] [stderr] 96 | |                         .take_while(|&&c| c != 0)
[INFO] [stderr] 97 | |                         .map(|&c| c)
[INFO] [stderr]    | |____________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]    |
[INFO] [stderr] 95 |                     let chars = buf.into_iter()
[INFO] [stderr] 96 |                         .take_while(|&&c| c != 0).cloned()
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this .into_iter() call is equivalent to .iter() and will not move the slice
[INFO] [stderr]   --> src/extension.rs:95:37
[INFO] [stderr]    |
[INFO] [stderr] 95 |                     let chars = buf.into_iter()
[INFO] [stderr]    |                                     ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::into_iter_on_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_ref
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/header.rs:148:12
[INFO] [stderr]     |
[INFO] [stderr] 148 |         if self.c.l1_size as u64 != self.l1_entries() {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.c.l1_size)`
[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/header.rs:194:23
[INFO] [stderr]     |
[INFO] [stderr] 194 |             let len = try!(io.read_u32()) as u64;
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 194 |             let len = u64::from(match $ expr {
[INFO] [stderr] 195 | $ crate :: result :: Result :: Ok ( val ) => val , $ crate :: result :: Result
[INFO] [stderr] 196 | :: Err ( err ) => {
[INFO] [stderr] 197 | return $ crate :: result :: Result :: Err (
[INFO] [stderr] 198 | $ crate :: convert :: From :: from ( err ) ) } });
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/header.rs:271:12
[INFO] [stderr]     |
[INFO] [stderr] 271 |         if self.v3.header_length as u64 != actual_length {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.v3.header_length)`
[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: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/read.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 | /     pub fn reader<'a>(&'a self) -> Result<Reader<I>> {
[INFO] [stderr] 52 | |         let offset = self.header.c.l1_table_offset;
[INFO] [stderr] 53 | |         let reader = try!(Reader::new(self, offset));
[INFO] [stderr] 54 | |         Ok(reader)
[INFO] [stderr] 55 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/read.rs:156:15
[INFO] [stderr]     |
[INFO] [stderr] 156 |         while buf.len() > 0 {
[INFO] [stderr]     |               ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!buf.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]  --> src/extension.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `byteorder::ReadBytesExt`
[INFO] [stderr]  --> src/extension.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use byteorder::ReadBytesExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/header.rs:207:21
[INFO] [stderr]     |
[INFO] [stderr] 207 |                 let mut ext = self.v3.extension(ext_code);
[INFO] [stderr]     |                     ----^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/read.rs:146:58
[INFO] [stderr]     |
[INFO] [stderr] 146 |     fn guest_read<T: ReadIntAt>(&self, l1: &T, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stderr]     |                                                          ----^^^
[INFO] [stderr]     |                                                          |
[INFO] [stderr]     |                                                          help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/read.rs:193:33
[INFO] [stderr]     |
[INFO] [stderr] 193 |     fn read_at(&self, pos: u64, mut buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stderr]     |                                 ----^^^
[INFO] [stderr]     |                                 |
[INFO] [stderr]     |                                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: You are using an explicit closure for cloning elements
[INFO] [stderr]   --> src/extension.rs:95:33
[INFO] [stderr]    |
[INFO] [stderr] 95 |                       let chars = buf.into_iter()
[INFO] [stderr]    |  _________________________________^
[INFO] [stderr] 96 | |                         .take_while(|&&c| c != 0)
[INFO] [stderr] 97 | |                         .map(|&c| c)
[INFO] [stderr]    | |____________________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::map_clone)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_clone
[INFO] [stderr] help: Consider calling the dedicated `cloned` method
[INFO] [stderr]    |
[INFO] [stderr] 95 |                     let chars = buf.into_iter()
[INFO] [stderr] 96 |                         .take_while(|&&c| c != 0).cloned()
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: this .into_iter() call is equivalent to .iter() and will not move the slice
[INFO] [stderr]   --> src/extension.rs:95:37
[INFO] [stderr]    |
[INFO] [stderr] 95 |                     let chars = buf.into_iter()
[INFO] [stderr]    |                                     ^^^^^^^^^ help: call directly: `iter`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::into_iter_on_ref)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_ref
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/header.rs:148:12
[INFO] [stderr]     |
[INFO] [stderr] 148 |         if self.c.l1_size as u64 != self.l1_entries() {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.c.l1_size)`
[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/header.rs:194:23
[INFO] [stderr]     |
[INFO] [stderr] 194 |             let len = try!(io.read_u32()) as u64;
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#cast_lossless
[INFO] [stderr] help: try
[INFO] [stderr]     |
[INFO] [stderr] 194 |             let len = u64::from(match $ expr {
[INFO] [stderr] 195 | $ crate :: result :: Result :: Ok ( val ) => val , $ crate :: result :: Result
[INFO] [stderr] 196 | :: Err ( err ) => {
[INFO] [stderr] 197 | return $ crate :: result :: Result :: Err (
[INFO] [stderr] 198 | $ crate :: convert :: From :: from ( err ) ) } });
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: casting u32 to u64 may become silently lossy if types change
[INFO] [stderr]    --> src/header.rs:271:12
[INFO] [stderr]     |
[INFO] [stderr] 271 |         if self.v3.header_length as u64 != actual_length {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `u64::from(self.v3.header_length)`
[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: explicit lifetimes given in parameter types where they could be elided (or replaced with `'_` if needed by type declaration)
[INFO] [stderr]   --> src/read.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 | /     pub fn reader<'a>(&'a self) -> Result<Reader<I>> {
[INFO] [stderr] 52 | |         let offset = self.header.c.l1_table_offset;
[INFO] [stderr] 53 | |         let reader = try!(Reader::new(self, offset));
[INFO] [stderr] 54 | |         Ok(reader)
[INFO] [stderr] 55 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_lifetimes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to zero
[INFO] [stderr]    --> src/read.rs:156:15
[INFO] [stderr]     |
[INFO] [stderr] 156 |         while buf.len() > 0 {
[INFO] [stderr]     |               ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!buf.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: use of `writeln!(stderr(), ...).unwrap()`. Consider using `eprintln!` instead
[INFO] [stderr]   --> src/bin/qcow2-dump.rs:12:17
[INFO] [stderr]    |
[INFO] [stderr] 12 |                 writeln!(std::io::stderr(), "{} `{}': {}", msg, path, e).unwrap();
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::explicit_write)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_write
[INFO] [stderr] 
[INFO] [stderr] warning: use of `writeln!(stderr(), ...).unwrap()`. Consider using `eprintln!` instead
[INFO] [stderr]   --> src/bin/qcow2-dump.rs:12:17
[INFO] [stderr]    |
[INFO] [stderr] 12 |                 writeln!(std::io::stderr(), "{} `{}': {}", msg, path, e).unwrap();
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::explicit_write)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#explicit_write
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.53s
[INFO] running `"docker" "inspect" "bdf688db59fa2bacfab3e7e4affc3ba4cbdc6a233bb3af3899decfe939bc107f"`
[INFO] running `"docker" "rm" "-f" "bdf688db59fa2bacfab3e7e4affc3ba4cbdc6a233bb3af3899decfe939bc107f"`
[INFO] [stdout] bdf688db59fa2bacfab3e7e4affc3ba4cbdc6a233bb3af3899decfe939bc107f