[INFO] updating cached repository adambrenecki/yorick
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/adambrenecki/yorick
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/adambrenecki/yorick" "work/ex/clippy-test-run/sources/stable/gh/adambrenecki/yorick"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/adambrenecki/yorick'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/adambrenecki/yorick" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/adambrenecki/yorick"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/adambrenecki/yorick'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] aee35e5509473e7671dd4eb192c1b7ba1a93b720
[INFO] sha for GitHub repo adambrenecki/yorick: aee35e5509473e7671dd4eb192c1b7ba1a93b720
[INFO] validating manifest of adambrenecki/yorick 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 adambrenecki/yorick 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 adambrenecki/yorick
[INFO] finished frobbing adambrenecki/yorick
[INFO] frobbed toml for adambrenecki/yorick written to work/ex/clippy-test-run/sources/stable/gh/adambrenecki/yorick/Cargo.toml
[INFO] started frobbing adambrenecki/yorick
[INFO] finished frobbing adambrenecki/yorick
[INFO] frobbed toml for adambrenecki/yorick written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/adambrenecki/yorick/Cargo.toml
[INFO] crate adambrenecki/yorick has a lockfile. skipping
[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 adambrenecki/yorick against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/adambrenecki/yorick:/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] 7a38790d7c52379fa15686c2a670f67c51ae9e166c9d0abe2b066aac22c3d4e5
[INFO] running `"docker" "start" "-a" "7a38790d7c52379fa15686c2a670f67c51ae9e166c9d0abe2b066aac22c3d4e5"`
[INFO] [stderr]     Checking maplit v1.0.0
[INFO] [stderr]     Checking tempdir v0.3.5
[INFO] [stderr]     Checking yorick v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]  --> src/skeleton.rs:3:40
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{BufReader, Read, Result, Write};
[INFO] [stderr]   |                                        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `create_dir`
[INFO] [stderr]  --> src/skeleton.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fs::{File, create_dir};
[INFO] [stderr]   |                     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/skeleton.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tempdir::TempDir`
[INFO] [stderr]  --> src/skeleton.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use tempdir::TempDir;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/skeleton.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 | /         return Box::new(
[INFO] [stderr] 29 | |             WalkDir::new(self.root.as_path())
[INFO] [stderr] 30 | |                 .into_iter()
[INFO] [stderr] 31 | |                 .map(|entry| entry.unwrap())
[INFO] [stderr] ...  |
[INFO] [stderr] 39 | |                 }),
[INFO] [stderr] 40 | |         );
[INFO] [stderr]    | |__________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 28 |         Box::new(
[INFO] [stderr] 29 |             WalkDir::new(self.root.as_path())
[INFO] [stderr] 30 |                 .into_iter()
[INFO] [stderr] 31 |                 .map(|entry| entry.unwrap())
[INFO] [stderr] 32 |                 .filter(|entry| entry.file_type().is_file())
[INFO] [stderr] 33 |                 .map(move |entry| {
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/output.rs:2:30
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{Result, Write, Read};
[INFO] [stderr]   |                              ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tempdir::TempDir`
[INFO] [stderr]  --> src/output.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use tempdir::TempDir;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Deserialize`, `Deserializer`, `self`
[INFO] [stderr]  --> src/config.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use serde::de::{self, Deserialize, Deserializer};
[INFO] [stderr]   |                 ^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `toml`
[INFO] [stderr]  --> src/config.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use toml;
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/skeleton.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 | /         return Box::new(
[INFO] [stderr] 29 | |             WalkDir::new(self.root.as_path())
[INFO] [stderr] 30 | |                 .into_iter()
[INFO] [stderr] 31 | |                 .map(|entry| entry.unwrap())
[INFO] [stderr] ...  |
[INFO] [stderr] 39 | |                 }),
[INFO] [stderr] 40 | |         );
[INFO] [stderr]    | |__________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] help: remove `return` as shown
[INFO] [stderr]    |
[INFO] [stderr] 28 |         Box::new(
[INFO] [stderr] 29 |             WalkDir::new(self.root.as_path())
[INFO] [stderr] 30 |                 .into_iter()
[INFO] [stderr] 31 |                 .map(|entry| entry.unwrap())
[INFO] [stderr] 32 |                 .filter(|entry| entry.file_type().is_file())
[INFO] [stderr] 33 |                 .map(move |entry| {
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Deserialize`, `Deserializer`, `self`
[INFO] [stderr]  --> src/config.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use serde::de::{self, Deserialize, Deserializer};
[INFO] [stderr]   |                 ^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |         file.contents().unwrap().read(contents);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     writer.write(b"Hello!");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/skeleton.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     file1.write(b"FOO").unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/skeleton.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     file1.write(b"QUX").unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/skeleton.rs:81:16
[INFO] [stderr]    |
[INFO] [stderr] 81 |     assert_eq!(file_map.get(Path::new("foo")).unwrap().as_slice(), b"FOO");
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&file_map[Path::new("foo")]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::get_unwrap)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> src/skeleton.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |         file_map.get(Path::new("bar/baz")).unwrap().as_slice(),
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&file_map[Path::new("bar/baz")]`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#get_unwrap
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/output.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     writer.write(b"FOO").unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/output.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     writer.write(b"QUX").unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |         file.contents().unwrap().read(contents);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     writer.write(b"Hello!");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `yorick`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7a38790d7c52379fa15686c2a670f67c51ae9e166c9d0abe2b066aac22c3d4e5"`
[INFO] running `"docker" "rm" "-f" "7a38790d7c52379fa15686c2a670f67c51ae9e166c9d0abe2b066aac22c3d4e5"`
[INFO] [stdout] 7a38790d7c52379fa15686c2a670f67c51ae9e166c9d0abe2b066aac22c3d4e5