[INFO] updating cached repository twh2898/tom_lang
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/twh2898/tom_lang
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/twh2898/tom_lang" "work/ex/clippy-test-run/sources/stable/gh/twh2898/tom_lang"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/twh2898/tom_lang'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/twh2898/tom_lang" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/twh2898/tom_lang"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/twh2898/tom_lang'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1b8f89c2db8c28737e53c2044e1ce4dc2ccac562
[INFO] sha for GitHub repo twh2898/tom_lang: 1b8f89c2db8c28737e53c2044e1ce4dc2ccac562
[INFO] validating manifest of twh2898/tom_lang 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 twh2898/tom_lang 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 twh2898/tom_lang
[INFO] finished frobbing twh2898/tom_lang
[INFO] frobbed toml for twh2898/tom_lang written to work/ex/clippy-test-run/sources/stable/gh/twh2898/tom_lang/Cargo.toml
[INFO] started frobbing twh2898/tom_lang
[INFO] finished frobbing twh2898/tom_lang
[INFO] frobbed toml for twh2898/tom_lang written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/twh2898/tom_lang/Cargo.toml
[INFO] crate twh2898/tom_lang 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 twh2898/tom_lang against stable+rustflags=-Dclippy::into_iter_on_array for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/twh2898/tom_lang:/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 -Dclippy::into_iter_on_array" "-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] 34b67778b52bf3a68f5af6532d693eb4591fb557510546bcc37ac363a9d01399
[INFO] running `"docker" "start" "-a" "34b67778b52bf3a68f5af6532d693eb4591fb557510546bcc37ac363a9d01399"`
[INFO] [stderr]     Checking libc v0.2.26
[INFO] [stderr]     Checking memchr v1.0.1
[INFO] [stderr]     Checking nom v3.1.0
[INFO] [stderr]     Checking tom_lang v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |         return IResult::Incomplete(Needed::Size(4));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `IResult::Incomplete(Needed::Size(4))`
[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] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 74 |         return IResult::Done(&i[4..], &i[..4]);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `IResult::Done(&i[4..], &i[..4])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |         return IResult::Incomplete(Needed::Size(4));
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `IResult::Incomplete(Needed::Size(4))`
[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] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/main.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 74 |         return IResult::Done(&i[4..], &i[..4]);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove `return` as shown: `IResult::Done(&i[4..], &i[..4])`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> examples/math.rs:81:46
[INFO] [stderr]    |
[INFO] [stderr] 81 |                     println!("{} = {}", key, table.get(key).unwrap());
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&table[key]`
[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]   --> examples/math.rs:90:50
[INFO] [stderr]    |
[INFO] [stderr] 90 |                         println!("{} = {}", buf, table.get(buf).unwrap());
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&table[buf]`
[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] warning: called `.get().unwrap()` on a HashMap. Using `[]` is more clear and more concise
[INFO] [stderr]   --> examples/math.rs:93:50
[INFO] [stderr]    |
[INFO] [stderr] 93 |                         println!("{} = {}", buf, table.get(buf).unwrap());
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `&table[buf]`
[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] warning: casting character literal to u8. `char`s are 4 bytes wide in rust, so casting to u8 truncates them
[INFO] [stderr]   --> examples/json.rs:42:34
[INFO] [stderr]    |
[INFO] [stderr] 42 |     sign.and_then(|s| if s[0] == ('-' as u8) { Some(-1f32) } else { None }).unwrap_or(1f32) * value
[INFO] [stderr]    |                                  ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::char_lit_as_u8)] on by default
[INFO] [stderr]    = help: Consider using a byte literal instead:
[INFO] [stderr]            b'-'
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#char_lit_as_u8
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.56s
[INFO] running `"docker" "inspect" "34b67778b52bf3a68f5af6532d693eb4591fb557510546bcc37ac363a9d01399"`
[INFO] running `"docker" "rm" "-f" "34b67778b52bf3a68f5af6532d693eb4591fb557510546bcc37ac363a9d01399"`
[INFO] [stdout] 34b67778b52bf3a68f5af6532d693eb4591fb557510546bcc37ac363a9d01399