[INFO] updating cached repository mawis/try-lmdb
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mawis/try-lmdb
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mawis/try-lmdb" "work/ex/clippy-test-run/sources/stable/gh/mawis/try-lmdb"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/mawis/try-lmdb'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mawis/try-lmdb" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mawis/try-lmdb"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mawis/try-lmdb'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 52bfd1952cdbf93001887cdd117685ca62c3312d
[INFO] sha for GitHub repo mawis/try-lmdb: 52bfd1952cdbf93001887cdd117685ca62c3312d
[INFO] validating manifest of mawis/try-lmdb 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 mawis/try-lmdb 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 mawis/try-lmdb
[INFO] finished frobbing mawis/try-lmdb
[INFO] frobbed toml for mawis/try-lmdb written to work/ex/clippy-test-run/sources/stable/gh/mawis/try-lmdb/Cargo.toml
[INFO] started frobbing mawis/try-lmdb
[INFO] finished frobbing mawis/try-lmdb
[INFO] frobbed toml for mawis/try-lmdb written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/mawis/try-lmdb/Cargo.toml
[INFO] crate mawis/try-lmdb 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 mawis/try-lmdb 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/mawis/try-lmdb:/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] 4341d3456f054c60e077ec6b3997a56785fd344c3c629dd045625764cf448843
[INFO] running `"docker" "start" "-a" "4341d3456f054c60e077ec6b3997a56785fd344c3c629dd045625764cf448843"`
[INFO] [stderr]    Compiling liblmdb-sys v0.2.2
[INFO] [stderr]     Checking lmdb-rs v0.7.6
[INFO] [stderr]     Checking dbtry 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/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | /     match txn.commit() {
[INFO] [stderr] 22 | |         Err(_) => panic!("failed to commit"),
[INFO] [stderr] 23 | |         Ok(_) => ()
[INFO] [stderr] 24 | |     }
[INFO] [stderr]    | |_____^ help: try this: `if let Err(_) = txn.commit() { panic!("failed to commit") }`
[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: Err(_) will match all errors, maybe not a good idea
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |         Err(_) => panic!("failed to commit"),
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_wild_err_arm)] on by default
[INFO] [stderr]    = note: to remove this warning, match each error separately or use unreachable macro
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm
[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:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | /     match txn.commit() {
[INFO] [stderr] 22 | |         Err(_) => panic!("failed to commit"),
[INFO] [stderr] 23 | |         Ok(_) => ()
[INFO] [stderr] 24 | |     }
[INFO] [stderr]    | |_____^ help: try this: `if let Err(_) = txn.commit() { panic!("failed to commit") }`
[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: Err(_) will match all errors, maybe not a good idea
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |         Err(_) => panic!("failed to commit"),
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::match_wild_err_arm)] on by default
[INFO] [stderr]    = note: to remove this warning, match each error separately or use unreachable macro
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#match_wild_err_arm
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.71s
[INFO] running `"docker" "inspect" "4341d3456f054c60e077ec6b3997a56785fd344c3c629dd045625764cf448843"`
[INFO] running `"docker" "rm" "-f" "4341d3456f054c60e077ec6b3997a56785fd344c3c629dd045625764cf448843"`
[INFO] [stdout] 4341d3456f054c60e077ec6b3997a56785fd344c3c629dd045625764cf448843