[INFO] crate expanduser 1.2.1 is already in cache
[INFO] extracting crate expanduser 1.2.1 into work/ex/clippy-test-run/sources/stable/reg/expanduser/1.2.1
[INFO] extracting crate expanduser 1.2.1 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/expanduser/1.2.1
[INFO] validating manifest of expanduser-1.2.1 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 expanduser-1.2.1 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 expanduser-1.2.1
[INFO] finished frobbing expanduser-1.2.1
[INFO] frobbed toml for expanduser-1.2.1 written to work/ex/clippy-test-run/sources/stable/reg/expanduser/1.2.1/Cargo.toml
[INFO] started frobbing expanduser-1.2.1
[INFO] finished frobbing expanduser-1.2.1
[INFO] frobbed toml for expanduser-1.2.1 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/expanduser/1.2.1/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 expanduser-1.2.1 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-0/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/expanduser/1.2.1:/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] e706d669889d039f4f21514c45bb7dcb343458cc1a61ea33bc0f101789f21cbb
[INFO] running `"docker" "start" "-a" "e706d669889d039f4f21514c45bb7dcb343458cc1a61ea33bc0f101789f21cbb"`
[INFO] [stderr]     Checking pwd v1.3.0
[INFO] [stderr]     Checking expanduser v1.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/lib.rs:51:28
[INFO] [stderr]    |
[INFO] [stderr] 51 |         s if s.starts_with("~") => {
[INFO] [stderr]    |                            ^^^ help: try using a char instead: `'~'`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: single-character string constant used as pattern
[INFO] [stderr]   --> src/lib.rs:51:28
[INFO] [stderr]    |
[INFO] [stderr] 51 |         s if s.starts_with("~") => {
[INFO] [stderr]    |                            ^^^ help: try using a char instead: `'~'`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::single_char_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#single_char_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to one
[INFO] [stderr]    --> src/lib.rs:106:12
[INFO] [stderr]     |
[INFO] [stderr] 106 |         if user.len() < 1 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `user.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::len_zero)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr] warning: length comparison to one
[INFO] [stderr]    --> src/lib.rs:118:12
[INFO] [stderr]     |
[INFO] [stderr] 118 |         if user.len() < 1 {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `user.is_empty()`
[INFO] [stderr]     |
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#len_zero
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.64s
[INFO] running `"docker" "inspect" "e706d669889d039f4f21514c45bb7dcb343458cc1a61ea33bc0f101789f21cbb"`
[INFO] running `"docker" "rm" "-f" "e706d669889d039f4f21514c45bb7dcb343458cc1a61ea33bc0f101789f21cbb"`
[INFO] [stdout] e706d669889d039f4f21514c45bb7dcb343458cc1a61ea33bc0f101789f21cbb