[INFO] updating cached repository GodTamIt/caching-simulation-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/GodTamIt/caching-simulation-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/GodTamIt/caching-simulation-rs" "work/ex/clippy-test-run/sources/stable/gh/GodTamIt/caching-simulation-rs"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/GodTamIt/caching-simulation-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/GodTamIt/caching-simulation-rs" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/GodTamIt/caching-simulation-rs"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/GodTamIt/caching-simulation-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 432a121802f45358eaf526f7704ea7149b85bacb
[INFO] sha for GitHub repo GodTamIt/caching-simulation-rs: 432a121802f45358eaf526f7704ea7149b85bacb
[INFO] validating manifest of GodTamIt/caching-simulation-rs 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 GodTamIt/caching-simulation-rs 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 GodTamIt/caching-simulation-rs
[INFO] finished frobbing GodTamIt/caching-simulation-rs
[INFO] frobbed toml for GodTamIt/caching-simulation-rs written to work/ex/clippy-test-run/sources/stable/gh/GodTamIt/caching-simulation-rs/Cargo.toml
[INFO] started frobbing GodTamIt/caching-simulation-rs
[INFO] finished frobbing GodTamIt/caching-simulation-rs
[INFO] frobbed toml for GodTamIt/caching-simulation-rs written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/GodTamIt/caching-simulation-rs/Cargo.toml
[INFO] crate GodTamIt/caching-simulation-rs 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 GodTamIt/caching-simulation-rs 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/GodTamIt/caching-simulation-rs:/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] 227c6f0ce5b5f0e2001511ce3168213c2ec330bcf040b689b60afb94af421ab2
[INFO] running `"docker" "start" "-a" "227c6f0ce5b5f0e2001511ce3168213c2ec330bcf040b689b60afb94af421ab2"`
[INFO] [stderr]     Checking cachesim v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: you seem to be trying to use match for destructuring a single pattern. Consider using `if let`
[INFO] [stderr]    --> src/student.rs:127:5
[INFO] [stderr]     |
[INFO] [stderr] 127 | /     match find_l2_block(l1_tag, l1_index, &config, &l2) {
[INFO] [stderr] 128 | |         Some((l2_set_index, _, l2_index)) => {
[INFO] [stderr] 129 | |             l2.cache[l2_index as usize][l2_set_index].last_clock_access = config.cache_clock;
[INFO] [stderr] 130 | |             
[INFO] [stderr] ...   |
[INFO] [stderr] 137 | |         None => (),
[INFO] [stderr] 138 | |     };
[INFO] [stderr]     | |_____^
[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] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 127 |     if let Some((l2_set_index, _, l2_index)) = find_l2_block(l1_tag, l1_index, &config, &l2) {
[INFO] [stderr] 128 |     l2.cache[l2_index as usize][l2_set_index].last_clock_access = config.cache_clock;
[INFO] [stderr] 129 |     
[INFO] [stderr] 130 |     // Bring block into L1 cache as well
[INFO] [stderr] 131 |     allocate_l1_block(l1, l2, l1_index, &config);
[INFO] [stderr] 132 |     update_block(&mut l1.cache[l1_index as usize], l1_tag, true, access_type == AccessType::Write, config.cache_clock);
[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/student.rs:127:5
[INFO] [stderr]     |
[INFO] [stderr] 127 | /     match find_l2_block(l1_tag, l1_index, &config, &l2) {
[INFO] [stderr] 128 | |         Some((l2_set_index, _, l2_index)) => {
[INFO] [stderr] 129 | |             l2.cache[l2_index as usize][l2_set_index].last_clock_access = config.cache_clock;
[INFO] [stderr] 130 | |             
[INFO] [stderr] ...   |
[INFO] [stderr] 137 | |         None => (),
[INFO] [stderr] 138 | |     };
[INFO] [stderr]     | |_____^
[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] help: try this
[INFO] [stderr]     |
[INFO] [stderr] 127 |     if let Some((l2_set_index, _, l2_index)) = find_l2_block(l1_tag, l1_index, &config, &l2) {
[INFO] [stderr] 128 |     l2.cache[l2_index as usize][l2_set_index].last_clock_access = config.cache_clock;
[INFO] [stderr] 129 |     
[INFO] [stderr] 130 |     // Bring block into L1 cache as well
[INFO] [stderr] 131 |     allocate_l1_block(l1, l2, l1_index, &config);
[INFO] [stderr] 132 |     update_block(&mut l1.cache[l1_index as usize], l1_tag, true, access_type == AccessType::Write, config.cache_clock);
[INFO] [stderr]   ...
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.36s
[INFO] running `"docker" "inspect" "227c6f0ce5b5f0e2001511ce3168213c2ec330bcf040b689b60afb94af421ab2"`
[INFO] running `"docker" "rm" "-f" "227c6f0ce5b5f0e2001511ce3168213c2ec330bcf040b689b60afb94af421ab2"`
[INFO] [stdout] 227c6f0ce5b5f0e2001511ce3168213c2ec330bcf040b689b60afb94af421ab2