[INFO] crate tail-reader 3.0.0 is already in cache
[INFO] extracting crate tail-reader 3.0.0 into work/ex/clippy-test-run/sources/stable/reg/tail-reader/3.0.0
[INFO] extracting crate tail-reader 3.0.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/tail-reader/3.0.0
[INFO] validating manifest of tail-reader-3.0.0 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 tail-reader-3.0.0 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 tail-reader-3.0.0
[INFO] finished frobbing tail-reader-3.0.0
[INFO] frobbed toml for tail-reader-3.0.0 written to work/ex/clippy-test-run/sources/stable/reg/tail-reader/3.0.0/Cargo.toml
[INFO] started frobbing tail-reader-3.0.0
[INFO] finished frobbing tail-reader-3.0.0
[INFO] frobbed toml for tail-reader-3.0.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/tail-reader/3.0.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 tail-reader-3.0.0 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/reg/tail-reader/3.0.0:/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] dd5fe5cb6669e585e852d539d83c0c0406628a3d95456d5a9ce65550333ec622
[INFO] running `"docker" "start" "-a" "dd5fe5cb6669e585e852d539d83c0c0406628a3d95456d5a9ce65550333ec622"`
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]     Checking pretty_env_logger v0.2.5
[INFO] [stderr]     Checking inotify v0.6.1
[INFO] [stderr]     Checking crossbeam-channel v0.2.6
[INFO] [stderr]     Checking notify v4.0.7
[INFO] [stderr]     Checking tail-reader v3.0.0 (/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/tail_reader.rs:128:5
[INFO] [stderr]     |
[INFO] [stderr] 128 | /     match file.seek(SeekFrom::Start(tail_info.offset)) {
[INFO] [stderr] 129 | |         Err(e) => {
[INFO] [stderr] 130 | |             error!("{}", e);
[INFO] [stderr] 131 | |             return;
[INFO] [stderr] 132 | |         }
[INFO] [stderr] 133 | |         _ => {}
[INFO] [stderr] 134 | |     }
[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] 128 |     if let Err(e) = file.seek(SeekFrom::Start(tail_info.offset)) {
[INFO] [stderr] 129 |     error!("{}", e);
[INFO] [stderr] 130 |     return;
[INFO] [stderr] 131 | }
[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/tail_reader.rs:137:5
[INFO] [stderr]     |
[INFO] [stderr] 137 | /     match file.read_to_end(&mut bytes) {
[INFO] [stderr] 138 | |         Err(e) => {
[INFO] [stderr] 139 | |             error!("{}", e);
[INFO] [stderr] 140 | |             return;
[INFO] [stderr] 141 | |         }
[INFO] [stderr] 142 | |         _ => {}
[INFO] [stderr] 143 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[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] 137 |     if let Err(e) = file.read_to_end(&mut bytes) {
[INFO] [stderr] 138 |     error!("{}", e);
[INFO] [stderr] 139 |     return;
[INFO] [stderr] 140 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]    --> src/tail_reader.rs:148:18
[INFO] [stderr]     |
[INFO] [stderr] 148 |                 .unwrap_or(String::from("error parsing line"));
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| String::from("error parsing line"))`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[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/tail_reader.rs:128:5
[INFO] [stderr]     |
[INFO] [stderr] 128 | /     match file.seek(SeekFrom::Start(tail_info.offset)) {
[INFO] [stderr] 129 | |         Err(e) => {
[INFO] [stderr] 130 | |             error!("{}", e);
[INFO] [stderr] 131 | |             return;
[INFO] [stderr] 132 | |         }
[INFO] [stderr] 133 | |         _ => {}
[INFO] [stderr] 134 | |     }
[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] 128 |     if let Err(e) = file.seek(SeekFrom::Start(tail_info.offset)) {
[INFO] [stderr] 129 |     error!("{}", e);
[INFO] [stderr] 130 |     return;
[INFO] [stderr] 131 | }
[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/tail_reader.rs:137:5
[INFO] [stderr]     |
[INFO] [stderr] 137 | /     match file.read_to_end(&mut bytes) {
[INFO] [stderr] 138 | |         Err(e) => {
[INFO] [stderr] 139 | |             error!("{}", e);
[INFO] [stderr] 140 | |             return;
[INFO] [stderr] 141 | |         }
[INFO] [stderr] 142 | |         _ => {}
[INFO] [stderr] 143 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[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] 137 |     if let Err(e) = file.read_to_end(&mut bytes) {
[INFO] [stderr] 138 |     error!("{}", e);
[INFO] [stderr] 139 |     return;
[INFO] [stderr] 140 | }
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]    --> src/tail_reader.rs:148:18
[INFO] [stderr]     |
[INFO] [stderr] 148 |                 .unwrap_or(String::from("error parsing line"));
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| String::from("error parsing line"))`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::or_fun_call)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#or_fun_call
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.96s
[INFO] running `"docker" "inspect" "dd5fe5cb6669e585e852d539d83c0c0406628a3d95456d5a9ce65550333ec622"`
[INFO] running `"docker" "rm" "-f" "dd5fe5cb6669e585e852d539d83c0c0406628a3d95456d5a9ce65550333ec622"`
[INFO] [stdout] dd5fe5cb6669e585e852d539d83c0c0406628a3d95456d5a9ce65550333ec622