[INFO] updating cached repository Libbum/cluster-opt-gen
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Libbum/cluster-opt-gen
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Libbum/cluster-opt-gen" "work/ex/clippy-test-run/sources/stable/gh/Libbum/cluster-opt-gen"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Libbum/cluster-opt-gen'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Libbum/cluster-opt-gen" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Libbum/cluster-opt-gen"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Libbum/cluster-opt-gen'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7b63594ce8cdb80a8a989ee7e4a16608fa0df734
[INFO] sha for GitHub repo Libbum/cluster-opt-gen: 7b63594ce8cdb80a8a989ee7e4a16608fa0df734
[INFO] validating manifest of Libbum/cluster-opt-gen 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 Libbum/cluster-opt-gen 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 Libbum/cluster-opt-gen
[INFO] finished frobbing Libbum/cluster-opt-gen
[INFO] frobbed toml for Libbum/cluster-opt-gen written to work/ex/clippy-test-run/sources/stable/gh/Libbum/cluster-opt-gen/Cargo.toml
[INFO] started frobbing Libbum/cluster-opt-gen
[INFO] finished frobbing Libbum/cluster-opt-gen
[INFO] frobbed toml for Libbum/cluster-opt-gen written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Libbum/cluster-opt-gen/Cargo.toml
[INFO] crate Libbum/cluster-opt-gen 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 Libbum/cluster-opt-gen 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/Libbum/cluster-opt-gen:/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] a4fd01e4a070f913596adee5604bbc31f3df6dfff6504c6b48d4e63698fcfd9d
[INFO] running `"docker" "start" "-a" "a4fd01e4a070f913596adee5604bbc31f3df6dfff6504c6b48d4e63698fcfd9d"`
[INFO] [stderr]     Checking cluster_opt_gen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/main.rs:43:15
[INFO] [stderr]    |
[INFO] [stderr] 43 |     for xx in 0..numxi+5+1 {
[INFO] [stderr]    |               ^^^^^^^^^^^^ help: use: `0..=numxi+5`
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/main.rs:43:15
[INFO] [stderr]    |
[INFO] [stderr] 43 |     for xx in 0..numxi+5+1 {
[INFO] [stderr]    |               ^^^^^^^^^^^^ help: use: `0..=numxi+5`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr]    = note: #[warn(clippy::range_plus_one)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/main.rs:44:19
[INFO] [stderr]    |
[INFO] [stderr] 44 |         for yy in 0..numyi+5+1 {
[INFO] [stderr]    |                   ^^^^^^^^^^^^ help: use: `0..=numyi+5`
[INFO] [stderr]    |
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/main.rs:44:19
[INFO] [stderr]    |
[INFO] [stderr] 44 |         for yy in 0..numyi+5+1 {
[INFO] [stderr]    |                   ^^^^^^^^^^^^ help: use: `0..=numyi+5`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/main.rs:45:23
[INFO] [stderr]    |
[INFO] [stderr] 45 |             for zz in 0..distnumz+5+1 {
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^ help: use: `0..=distnumz+5`
[INFO] [stderr]   --> src/main.rs:45:23
[INFO] [stderr]    |
[INFO] [stderr] 45 |             for zz in 0..distnumz+5+1 {
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^ help: use: `0..=distnumz+5`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/main.rs:59:15
[INFO] [stderr]    |
[INFO] [stderr] 59 |     for it in 1..numchunks+1 {
[INFO] [stderr]    |               ^^^^^^^^^^^^^^ help: use: `1..=numchunks`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 | /         match std::fs::create_dir(&dirname) {
[INFO] [stderr] 63 | |             Err(why) => println!("Cannot create directory {}: {:?}", dirname, why.kind()),
[INFO] [stderr] 64 | |             Ok(_) => {},
[INFO] [stderr] 65 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Err(why) = std::fs::create_dir(&dirname) { println!("Cannot create directory {}: {:?}", dirname, why.kind()) }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 74 | /         match file.write_all(b"conp opti\n") {
[INFO] [stderr] 75 | |             Err(why) => panic!("couldn't write to {}: {}", display, why.description()),
[INFO] [stderr] 76 | |             Ok(_) => {},
[INFO] [stderr] 77 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Err(why) = file.write_all(b"conp opti\n") { panic!("couldn't write to {}: {}", display, why.description()) }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `line` is only used to index `oline`.
[INFO] [stderr]   --> src/main.rs:79:21
[INFO] [stderr]    |
[INFO] [stderr] 79 |         for line in lowidx..highidx {
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 79 |         for <item> in oline.iter().take(highidx).skip(lowidx) {
[INFO] [stderr]    |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:81:13
[INFO] [stderr]    |
[INFO] [stderr] 81 | /             match file.write_all(system.as_bytes()) {
[INFO] [stderr] 82 | |                 Err(why) => panic!("couldn't write to {}: {}", display, why.description()),
[INFO] [stderr] 83 | |                 Ok(_) => {},
[INFO] [stderr] 84 | |             }
[INFO] [stderr]    | |_____________^ help: try this: `if let Err(why) = file.write_all(system.as_bytes()) { panic!("couldn't write to {}: {}", display, why.description()) }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/main.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         lowidx = lowidx + cutsize;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `lowidx += cutsize`
[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] warning: an inclusive range would be more readable
[INFO] [stderr]   --> src/main.rs:59:15
[INFO] [stderr]    |
[INFO] [stderr] 59 |     for it in 1..numchunks+1 {
[INFO] [stderr]    |               ^^^^^^^^^^^^^^ help: use: `1..=numchunks`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 | /         match std::fs::create_dir(&dirname) {
[INFO] [stderr] 63 | |             Err(why) => println!("Cannot create directory {}: {:?}", dirname, why.kind()),
[INFO] [stderr] 64 | |             Ok(_) => {},
[INFO] [stderr] 65 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Err(why) = std::fs::create_dir(&dirname) { println!("Cannot create directory {}: {:?}", dirname, why.kind()) }`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_match)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 74 | /         match file.write_all(b"conp opti\n") {
[INFO] [stderr] 75 | |             Err(why) => panic!("couldn't write to {}: {}", display, why.description()),
[INFO] [stderr] 76 | |             Ok(_) => {},
[INFO] [stderr] 77 | |         }
[INFO] [stderr]    | |_________^ help: try this: `if let Err(why) = file.write_all(b"conp opti\n") { panic!("couldn't write to {}: {}", display, why.description()) }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: the loop variable `line` is only used to index `oline`.
[INFO] [stderr]   --> src/main.rs:79:21
[INFO] [stderr]    |
[INFO] [stderr] 79 |         for line in lowidx..highidx {
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_range_loop)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_range_loop
[INFO] [stderr] help: consider using an iterator
[INFO] [stderr]    |
[INFO] [stderr] 79 |         for <item> in oline.iter().take(highidx).skip(lowidx) {
[INFO] [stderr]    |             ^^^^^^    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/main.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 87 |         highidx = highidx + cutsize;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `highidx += cutsize`
[INFO] [stderr]    |
[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: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]   --> src/main.rs:81:13
[INFO] [stderr]    |
[INFO] [stderr] 81 | /             match file.write_all(system.as_bytes()) {
[INFO] [stderr] 82 | |                 Err(why) => panic!("couldn't write to {}: {}", display, why.description()),
[INFO] [stderr] 83 | |                 Ok(_) => {},
[INFO] [stderr] 84 | |             }
[INFO] [stderr]    | |_____________^ help: try this: `if let Err(why) = file.write_all(system.as_bytes()) { panic!("couldn't write to {}: {}", display, why.description()) }`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_match
[INFO] [stderr] 
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/main.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         lowidx = lowidx + cutsize;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `lowidx += cutsize`
[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: manual implementation of an assign operation
[INFO] [stderr]   --> src/main.rs:87:9
[INFO] [stderr]    |
[INFO] [stderr] 87 |         highidx = highidx + cutsize;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `highidx += cutsize`
[INFO] [stderr]    |
[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 0.97s
[INFO] running `"docker" "inspect" "a4fd01e4a070f913596adee5604bbc31f3df6dfff6504c6b48d4e63698fcfd9d"`
[INFO] running `"docker" "rm" "-f" "a4fd01e4a070f913596adee5604bbc31f3df6dfff6504c6b48d4e63698fcfd9d"`
[INFO] [stdout] a4fd01e4a070f913596adee5604bbc31f3df6dfff6504c6b48d4e63698fcfd9d