[INFO] updating cached repository Ajhaa/rust_server
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Ajhaa/rust_server
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Ajhaa/rust_server" "work/ex/clippy-test-run/sources/stable/gh/Ajhaa/rust_server"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Ajhaa/rust_server'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Ajhaa/rust_server" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Ajhaa/rust_server"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Ajhaa/rust_server'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 21cbd2316c7ade40dc216a79e9a100bba0209dc6
[INFO] sha for GitHub repo Ajhaa/rust_server: 21cbd2316c7ade40dc216a79e9a100bba0209dc6
[INFO] validating manifest of Ajhaa/rust_server 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 Ajhaa/rust_server 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 Ajhaa/rust_server
[INFO] finished frobbing Ajhaa/rust_server
[INFO] frobbed toml for Ajhaa/rust_server written to work/ex/clippy-test-run/sources/stable/gh/Ajhaa/rust_server/Cargo.toml
[INFO] started frobbing Ajhaa/rust_server
[INFO] finished frobbing Ajhaa/rust_server
[INFO] frobbed toml for Ajhaa/rust_server written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Ajhaa/rust_server/Cargo.toml
[INFO] crate Ajhaa/rust_server 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 Ajhaa/rust_server against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-7/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/Ajhaa/rust_server:/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] 8d6612ba769854228843961ae5f4592aa6646818eec52075024c3aef5233829b
[INFO] running `"docker" "start" "-a" "8d6612ba769854228843961ae5f4592aa6646818eec52075024c3aef5233829b"`
[INFO] [stderr]     Checking buffer v0.1.8
[INFO] [stderr]     Checking regex v1.0.1
[INFO] [stderr]     Checking buffer_test v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/main.rs:49:3
[INFO] [stderr]    |
[INFO] [stderr] 49 |   number
[INFO] [stderr]    |   ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/main.rs:48:16
[INFO] [stderr]    |
[INFO] [stderr] 48 |   let number = str::parse(length_header.trim()).unwrap();
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] error: handle read amount returned or use `Read::read_exact` instead
[INFO] [stderr]   --> src/main.rs:32:3
[INFO] [stderr]    |
[INFO] [stderr] 32 |   s.read(&mut buffer).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/main.rs:39:3
[INFO] [stderr]    |
[INFO] [stderr] 39 |   s.write("Hello world".as_bytes()).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: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:39:11
[INFO] [stderr]    |
[INFO] [stderr] 39 |   s.write("Hello world".as_bytes()).unwrap();
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"Hello world"`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::string_lit_as_bytes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `buffer_test`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: returning the result of a let binding from a block. Consider returning the expression directly.
[INFO] [stderr]   --> src/main.rs:49:3
[INFO] [stderr]    |
[INFO] [stderr] 49 |   number
[INFO] [stderr]    |   ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::let_and_return)] on by default
[INFO] [stderr] note: this expression can be directly returned
[INFO] [stderr]   --> src/main.rs:48:16
[INFO] [stderr]    |
[INFO] [stderr] 48 |   let number = str::parse(length_header.trim()).unwrap();
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
[INFO] [stderr] 
[INFO] [stderr] error: handle read amount returned or use `Read::read_exact` instead
[INFO] [stderr]   --> src/main.rs:32:3
[INFO] [stderr]    |
[INFO] [stderr] 32 |   s.read(&mut buffer).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/main.rs:39:3
[INFO] [stderr]    |
[INFO] [stderr] 39 |   s.write("Hello world".as_bytes()).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: calling `as_bytes()` on a string literal
[INFO] [stderr]   --> src/main.rs:39:11
[INFO] [stderr]    |
[INFO] [stderr] 39 |   s.write("Hello world".as_bytes()).unwrap();
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using a byte string literal instead: `b"Hello world"`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::string_lit_as_bytes)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#string_lit_as_bytes
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `buffer_test`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8d6612ba769854228843961ae5f4592aa6646818eec52075024c3aef5233829b"`
[INFO] running `"docker" "rm" "-f" "8d6612ba769854228843961ae5f4592aa6646818eec52075024c3aef5233829b"`
[INFO] [stdout] 8d6612ba769854228843961ae5f4592aa6646818eec52075024c3aef5233829b