[INFO] updating cached repository hhatto/wwup-in-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hhatto/wwup-in-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hhatto/wwup-in-rust" "work/ex/clippy-test-run/sources/stable/gh/hhatto/wwup-in-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/hhatto/wwup-in-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hhatto/wwup-in-rust" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/hhatto/wwup-in-rust"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/hhatto/wwup-in-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7ef78053e5a0447048fafc7824dd7adb64c60c12
[INFO] sha for GitHub repo hhatto/wwup-in-rust: 7ef78053e5a0447048fafc7824dd7adb64c60c12
[INFO] validating manifest of hhatto/wwup-in-rust 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 hhatto/wwup-in-rust 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 hhatto/wwup-in-rust
[INFO] finished frobbing hhatto/wwup-in-rust
[INFO] frobbed toml for hhatto/wwup-in-rust written to work/ex/clippy-test-run/sources/stable/gh/hhatto/wwup-in-rust/Cargo.toml
[INFO] started frobbing hhatto/wwup-in-rust
[INFO] finished frobbing hhatto/wwup-in-rust
[INFO] frobbed toml for hhatto/wwup-in-rust written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/hhatto/wwup-in-rust/Cargo.toml
[INFO] crate hhatto/wwup-in-rust 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 hhatto/wwup-in-rust against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-4/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/hhatto/wwup-in-rust:/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] 03bbe724a28e23c9b4d3415e1c2bf0d54e61fb42f442100078aedc32f938fc31
[INFO] running `"docker" "start" "-a" "03bbe724a28e23c9b4d3415e1c2bf0d54e61fb42f442100078aedc32f938fc31"`
[INFO] [stderr]     Checking nix v0.8.1
[INFO] [stderr]     Checking chan-signal v0.2.0
[INFO] [stderr]     Checking nix v0.7.0
[INFO] [stderr]     Checking prctl v1.0.0
[INFO] [stderr]     Checking wwup v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: manual implementation of an assign operation
[INFO] [stderr]   --> src/6_processes_have_resource_limits.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     rlimit.rlim_cur = rlimit.rlim_cur * 2;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `rlimit.rlim_cur *= 2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::assign_op_pattern)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#assign_op_pattern
[INFO] [stderr] 
[INFO] [stderr] warning: The function/method `libc::setrlimit` doesn't need a mutable reference
[INFO] [stderr]   --> src/6_processes_have_resource_limits.rs:20:46
[INFO] [stderr]    |
[INFO] [stderr] 20 |         libc::setrlimit(libc::RLIMIT_NOFILE, &mut rlimit);
[INFO] [stderr]    |                                              ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(clippy::unnecessary_mut_passed)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_mut_passed
[INFO] [stderr] 
[INFO] [stderr] warning: The function/method `libc::setrlimit` doesn't need a mutable reference
[INFO] [stderr]   --> src/6_processes_have_resource_limits.rs:34:46
[INFO] [stderr]    |
[INFO] [stderr] 34 |         libc::setrlimit(libc::RLIMIT_NOFILE, &mut rlimit);
[INFO] [stderr]    |                                              ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_mut_passed
[INFO] [stderr] 
[INFO] [stderr] error: you are getting the inner pointer of a temporary `CString`
[INFO] [stderr]   --> src/19_spawning_terminal_processes.rs:19:32
[INFO] [stderr]    |
[INFO] [stderr] 19 |         let file = libc::popen(CString::new("less").unwrap().as_ptr(),
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::temporary_cstring_as_ptr)] on by default
[INFO] [stderr]    = note: that pointer will be invalid outside this expression
[INFO] [stderr] help: assign the `CString` to a variable to extend its lifetime
[INFO] [stderr]   --> src/19_spawning_terminal_processes.rs:19:32
[INFO] [stderr]    |
[INFO] [stderr] 19 |         let file = libc::popen(CString::new("less").unwrap().as_ptr(),
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#temporary_cstring_as_ptr
[INFO] [stderr] 
[INFO] [stderr] error: you are getting the inner pointer of a temporary `CString`
[INFO] [stderr]   --> src/19_spawning_terminal_processes.rs:20:21
[INFO] [stderr]    |
[INFO] [stderr] 20 |                     CString::new("w").unwrap().as_ptr());
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: that pointer will be invalid outside this expression
[INFO] [stderr] help: assign the `CString` to a variable to extend its lifetime
[INFO] [stderr]   --> src/19_spawning_terminal_processes.rs:20:21
[INFO] [stderr]    |
[INFO] [stderr] 20 |                     CString::new("w").unwrap().as_ptr());
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#temporary_cstring_as_ptr
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `wwup`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: this comparison involving the minimum or maximum element for this type contains a case that is always true or always false
[INFO] [stderr]   --> src/17_processes_can_communicate.rs:54:12
[INFO] [stderr]    |
[INFO] [stderr] 54 |         if len <= 0 {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::absurd_extreme_comparisons)] on by default
[INFO] [stderr]    = help: because 0 is the minimum value for this type, the case where the two sides are not equal never occurs, consider using len == 0 instead
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#absurd_extreme_comparisons
[INFO] [stderr] 
[INFO] [stderr] error: this comparison involving the minimum or maximum element for this type contains a case that is always true or always false
[INFO] [stderr]   --> src/17_processes_can_communicate.rs:94:12
[INFO] [stderr]    |
[INFO] [stderr] 94 |         if len <= 0 {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: because 0 is the minimum value for this type, the case where the two sides are not equal never occurs, consider using len == 0 instead
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#absurd_extreme_comparisons
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `wwup`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: use of `unwrap_or` followed by a function call
[INFO] [stderr]  --> src/7_processes_have_an_environment.rs:8:40
[INFO] [stderr]   |
[INFO] [stderr] 8 |     println!("{}", env::var("MESSAGE").unwrap_or("envvar not found".to_string()));
[INFO] [stderr]   |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `unwrap_or_else(|_| "envvar not found".to_string())`
[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: unused variable: `child`
[INFO] [stderr]   --> src/12_orphaned_processes.rs:11:38
[INFO] [stderr]    |
[INFO] [stderr] 11 |         unistd::ForkResult::Parent { child } => {
[INFO] [stderr]    |                                      ^^^^^ help: try ignoring the field: `child: _`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "03bbe724a28e23c9b4d3415e1c2bf0d54e61fb42f442100078aedc32f938fc31"`
[INFO] running `"docker" "rm" "-f" "03bbe724a28e23c9b4d3415e1c2bf0d54e61fb42f442100078aedc32f938fc31"`
[INFO] [stdout] 03bbe724a28e23c9b4d3415e1c2bf0d54e61fb42f442100078aedc32f938fc31