[INFO] updating cached repository fzzzy/rust-iron-gcd
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fzzzy/rust-iron-gcd
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fzzzy/rust-iron-gcd" "work/ex/clippy-test-run/sources/stable/gh/fzzzy/rust-iron-gcd"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/fzzzy/rust-iron-gcd'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fzzzy/rust-iron-gcd" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/fzzzy/rust-iron-gcd"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/fzzzy/rust-iron-gcd'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a0098d32027825022a56ca6e0bd6aa9c2c20968f
[INFO] sha for GitHub repo fzzzy/rust-iron-gcd: a0098d32027825022a56ca6e0bd6aa9c2c20968f
[INFO] validating manifest of fzzzy/rust-iron-gcd 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 fzzzy/rust-iron-gcd 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 fzzzy/rust-iron-gcd
[INFO] finished frobbing fzzzy/rust-iron-gcd
[INFO] frobbed toml for fzzzy/rust-iron-gcd written to work/ex/clippy-test-run/sources/stable/gh/fzzzy/rust-iron-gcd/Cargo.toml
[INFO] started frobbing fzzzy/rust-iron-gcd
[INFO] finished frobbing fzzzy/rust-iron-gcd
[INFO] frobbed toml for fzzzy/rust-iron-gcd written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/fzzzy/rust-iron-gcd/Cargo.toml
[INFO] crate fzzzy/rust-iron-gcd 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 fzzzy/rust-iron-gcd 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/fzzzy/rust-iron-gcd:/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] 5b5e35168f464e38893433f56811a1f4b749c0c972db01375057e891eeb2b6dd
[INFO] running `"docker" "start" "-a" "5b5e35168f464e38893433f56811a1f4b749c0c972db01375057e891eeb2b6dd"`
[INFO] [stderr]     Checking log v0.4.0
[INFO] [stderr]     Checking serde_json v0.8.6
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking hyper v0.10.13
[INFO] [stderr]     Checking iron v0.5.1
[INFO] [stderr]     Checking persistent v0.3.0
[INFO] [stderr]     Checking router v0.5.1
[INFO] [stderr]     Checking bodyparser v0.5.0
[INFO] [stderr]     Checking urlencoded v0.5.0
[INFO] [stderr]     Checking rust-iron-gcd v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:55:25
[INFO] [stderr]    |
[INFO] [stderr] 55 |             res.set_mut(format!("Form data has no 'n' parameters\n"));
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"Form data has no 'n' parameters\n".to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: this looks like you are swapping `m` and `n` manually
[INFO] [stderr]   --> src/main.rs:88:13
[INFO] [stderr]    |
[INFO] [stderr] 88 | /             let t = m;
[INFO] [stderr] 89 | |             m = n;
[INFO] [stderr] 90 | |             n = t;
[INFO] [stderr]    | |_________________^ help: try: `std::mem::swap(&mut m, &mut n)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::manual_swap)] on by default
[INFO] [stderr]    = note: or maybe you should use `std::mem::replace`?
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_swap
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/main.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 |         m = m % n;
[INFO] [stderr]    |         ^^^^^^^^^ help: replace it with: `m %= n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: useless use of `format!`
[INFO] [stderr]   --> src/main.rs:55:25
[INFO] [stderr]    |
[INFO] [stderr] 55 |             res.set_mut(format!("Form data has no 'n' parameters\n"));
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider using .to_string(): `"Form data has no 'n' parameters\n".to_string()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::useless_format)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#useless_format
[INFO] [stderr] 
[INFO] [stderr] warning: this looks like you are swapping `m` and `n` manually
[INFO] [stderr]   --> src/main.rs:88:13
[INFO] [stderr]    |
[INFO] [stderr] 88 | /             let t = m;
[INFO] [stderr] 89 | |             m = n;
[INFO] [stderr] 90 | |             n = t;
[INFO] [stderr]    | |_________________^ help: try: `std::mem::swap(&mut m, &mut n)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::manual_swap)] on by default
[INFO] [stderr]    = note: or maybe you should use `std::mem::replace`?
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_swap
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/main.rs:92:9
[INFO] [stderr]    |
[INFO] [stderr] 92 |         m = m % n;
[INFO] [stderr]    |         ^^^^^^^^^ help: replace it with: `m %= n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.85s
[INFO] running `"docker" "inspect" "5b5e35168f464e38893433f56811a1f4b749c0c972db01375057e891eeb2b6dd"`
[INFO] running `"docker" "rm" "-f" "5b5e35168f464e38893433f56811a1f4b749c0c972db01375057e891eeb2b6dd"`
[INFO] [stdout] 5b5e35168f464e38893433f56811a1f4b749c0c972db01375057e891eeb2b6dd