[INFO] updating cached repository Speedy-Consoles/suffix_tree
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Speedy-Consoles/suffix_tree
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Speedy-Consoles/suffix_tree" "work/ex/clippy-test-run/sources/stable/gh/Speedy-Consoles/suffix_tree"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/Speedy-Consoles/suffix_tree'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Speedy-Consoles/suffix_tree" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Speedy-Consoles/suffix_tree"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Speedy-Consoles/suffix_tree'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7e0fad7bc01f569bdd59ac045efd8f5c1ca43282
[INFO] sha for GitHub repo Speedy-Consoles/suffix_tree: 7e0fad7bc01f569bdd59ac045efd8f5c1ca43282
[INFO] validating manifest of Speedy-Consoles/suffix_tree 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 Speedy-Consoles/suffix_tree 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 Speedy-Consoles/suffix_tree
[INFO] finished frobbing Speedy-Consoles/suffix_tree
[INFO] frobbed toml for Speedy-Consoles/suffix_tree written to work/ex/clippy-test-run/sources/stable/gh/Speedy-Consoles/suffix_tree/Cargo.toml
[INFO] started frobbing Speedy-Consoles/suffix_tree
[INFO] finished frobbing Speedy-Consoles/suffix_tree
[INFO] frobbed toml for Speedy-Consoles/suffix_tree written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/Speedy-Consoles/suffix_tree/Cargo.toml
[INFO] crate Speedy-Consoles/suffix_tree 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 Speedy-Consoles/suffix_tree 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/Speedy-Consoles/suffix_tree:/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] da6ab76b5bc6df626e68500dc2c7a02790f899576c01cdb63fcaaf4c477aaf18
[INFO] running `"docker" "start" "-a" "da6ab76b5bc6df626e68500dc2c7a02790f899576c01cdb63fcaaf4c477aaf18"`
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]    Compiling rand v0.5.4
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]     Checking bytes v0.4.10
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking openssl-sys v0.9.39
[INFO] [stderr]     Checking tokio-threadpool v0.1.7
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking openssl v0.10.14
[INFO] [stderr]     Checking tokio-io v0.1.9
[INFO] [stderr]     Checking http v0.1.13
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]     Checking tokio-reactor v0.1.6
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-fs v0.1.3
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking tokio-uds v0.2.2
[INFO] [stderr]     Checking tokio-udp v0.1.2
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking native-tls v0.2.1
[INFO] [stderr]     Checking h2 v0.1.13
[INFO] [stderr]     Checking tokio v0.1.11
[INFO] [stderr]     Checking hyper v0.12.12
[INFO] [stderr]     Checking hyper-tls v0.3.1
[INFO] [stderr]     Checking reqwest v0.9.3
[INFO] [stderr]     Checking suffix_tree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/suffix_tree.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |         return st;
[INFO] [stderr]    |         ^^^^^^^^^^ help: remove `return` as shown: `st`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/sorted_vec.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         return None;
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: usage of `contains_key` followed by `insert` on a `HashMap`
[INFO] [stderr]   --> src/suffix_tree.rs:47:34
[INFO] [stderr]    |
[INFO] [stderr] 47 |                   let node_index = if threads.contains_key(&first_char) {
[INFO] [stderr]    |  __________________________________^
[INFO] [stderr] 48 | |                     let thread = threads.get_mut(&first_char).unwrap();
[INFO] [stderr] 49 | |                     let thread_string = &haystack[thread.thread_start..];
[INFO] [stderr] 50 | |                     let thread_offset = diff_pos(thread_string, rem_suffix);
[INFO] [stderr] ...  |
[INFO] [stderr] 72 | |                     break;
[INFO] [stderr] 73 | |                 };
[INFO] [stderr]    | |_________________^ help: consider using: `threads.entry(first_char)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::map_entry)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_entry
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/suffix_tree.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |         return st;
[INFO] [stderr]    |         ^^^^^^^^^^ help: remove `return` as shown: `st`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::needless_return)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: unneeded return statement
[INFO] [stderr]   --> src/sorted_vec.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |         return None;
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: remove `return` as shown: `None`
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_return
[INFO] [stderr] 
[INFO] [stderr] warning: usage of `contains_key` followed by `insert` on a `HashMap`
[INFO] [stderr]   --> src/suffix_tree.rs:47:34
[INFO] [stderr]    |
[INFO] [stderr] 47 |                   let node_index = if threads.contains_key(&first_char) {
[INFO] [stderr]    |  __________________________________^
[INFO] [stderr] 48 | |                     let thread = threads.get_mut(&first_char).unwrap();
[INFO] [stderr] 49 | |                     let thread_string = &haystack[thread.thread_start..];
[INFO] [stderr] 50 | |                     let thread_offset = diff_pos(thread_string, rem_suffix);
[INFO] [stderr] ...  |
[INFO] [stderr] 72 | |                     break;
[INFO] [stderr] 73 | |                 };
[INFO] [stderr]    | |_________________^ help: consider using: `threads.entry(first_char)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::map_entry)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_entry
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.44s
[INFO] running `"docker" "inspect" "da6ab76b5bc6df626e68500dc2c7a02790f899576c01cdb63fcaaf4c477aaf18"`
[INFO] running `"docker" "rm" "-f" "da6ab76b5bc6df626e68500dc2c7a02790f899576c01cdb63fcaaf4c477aaf18"`
[INFO] [stdout] da6ab76b5bc6df626e68500dc2c7a02790f899576c01cdb63fcaaf4c477aaf18