Dec 11 23:15:50.849 INFO checking addityasingh/sknife against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 23:15:50.849 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 11 23:15:51.204 INFO [stdout] 2c29f0783e0a94cdb025b655501283205b150f47f872893b713b75a9d4164546
Dec 11 23:15:51.206 INFO running `"docker" "start" "-a" "2c29f0783e0a94cdb025b655501283205b150f47f872893b713b75a9d4164546"`
Dec 11 23:15:52.665 INFO [stderr] usermod: no changes
Dec 11 23:15:52.736 INFO [stderr]     Checking sknife v0.2.2 (/source)
Dec 11 23:15:53.577 INFO [stderr] warning: unused import: `super::*`
Dec 11 23:15:53.577 INFO [stderr]   --> src/collection/any.rs:40:9
Dec 11 23:15:53.577 INFO [stderr]    |
Dec 11 23:15:53.577 INFO [stderr] 40 |     use super::*;
Dec 11 23:15:53.577 INFO [stderr]    |         ^^^^^^^^
Dec 11 23:15:53.580 INFO [stderr]    |
Dec 11 23:15:53.581 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 11 23:15:53.581 INFO [stderr] 
Dec 11 23:15:53.581 INFO [stderr] warning: unused import: `super::*`
Dec 11 23:15:53.581 INFO [stderr]   --> src/collection/count.rs:28:9
Dec 11 23:15:53.581 INFO [stderr]    |
Dec 11 23:15:53.581 INFO [stderr] 28 |     use super::*;
Dec 11 23:15:53.581 INFO [stderr]    |         ^^^^^^^^
Dec 11 23:15:53.581 INFO [stderr] 
Dec 11 23:15:53.581 INFO [stderr] warning: unused import: `super::*`
Dec 11 23:15:53.581 INFO [stderr]   --> src/collection/find.rs:39:9
Dec 11 23:15:53.581 INFO [stderr]    |
Dec 11 23:15:53.581 INFO [stderr] 39 |     use super::*;
Dec 11 23:15:53.581 INFO [stderr]    |         ^^^^^^^^
Dec 11 23:15:53.581 INFO [stderr] 
Dec 11 23:15:53.581 INFO [stderr] warning: unused import: `super::*`
Dec 11 23:15:53.581 INFO [stderr]   --> src/collection/flatmap.rs:35:9
Dec 11 23:15:53.581 INFO [stderr]    |
Dec 11 23:15:53.581 INFO [stderr] 35 |     use super::*;
Dec 11 23:15:53.581 INFO [stderr]    |         ^^^^^^^^
Dec 11 23:15:53.581 INFO [stderr] 
Dec 11 23:15:53.581 INFO [stderr] warning: unused import: `std`
Dec 11 23:15:53.581 INFO [stderr]  --> src/collection/zip.rs:5:5
Dec 11 23:15:53.581 INFO [stderr]   |
Dec 11 23:15:53.581 INFO [stderr] 5 | use std;
Dec 11 23:15:53.581 INFO [stderr]   |     ^^^
Dec 11 23:15:53.581 INFO [stderr] 
Dec 11 23:15:53.704 INFO [stderr] warning: unused import: `std`
Dec 11 23:15:53.704 INFO [stderr]  --> src/collection/zip.rs:5:5
Dec 11 23:15:53.704 INFO [stderr]   |
Dec 11 23:15:53.704 INFO [stderr] 5 | use std;
Dec 11 23:15:53.704 INFO [stderr]   |     ^^^
Dec 11 23:15:53.704 INFO [stderr]   |
Dec 11 23:15:53.704 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 23:15:53.704 INFO [stderr] 
Dec 11 23:15:53.741 INFO [stderr] warning: unused attribute
Dec 11 23:15:53.741 INFO [stderr]  --> src/collection/any.rs:1:1
Dec 11 23:15:53.741 INFO [stderr]   |
Dec 11 23:15:53.741 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:53.741 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:53.741 INFO [stderr]   |
Dec 11 23:15:53.741 INFO [stderr]   = note: #[warn(unused_attributes)] on by default
Dec 11 23:15:53.741 INFO [stderr] 
Dec 11 23:15:53.741 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 11 23:15:53.741 INFO [stderr]  --> src/collection/any.rs:1:1
Dec 11 23:15:53.741 INFO [stderr]   |
Dec 11 23:15:53.741 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:53.741 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:53.741 INFO [stderr] 
Dec 11 23:15:53.748 INFO [stderr] warning: unused attribute
Dec 11 23:15:53.748 INFO [stderr]  --> src/collection/count.rs:1:1
Dec 11 23:15:53.748 INFO [stderr]   |
Dec 11 23:15:53.748 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:53.748 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:53.748 INFO [stderr] 
Dec 11 23:15:53.748 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 11 23:15:53.748 INFO [stderr]  --> src/collection/count.rs:1:1
Dec 11 23:15:53.748 INFO [stderr]   |
Dec 11 23:15:53.748 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:53.748 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:53.749 INFO [stderr] 
Dec 11 23:15:53.749 INFO [stderr] warning: unused attribute
Dec 11 23:15:53.749 INFO [stderr]  --> src/collection/find.rs:1:1
Dec 11 23:15:53.749 INFO [stderr]   |
Dec 11 23:15:53.749 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:53.749 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:53.749 INFO [stderr] 
Dec 11 23:15:53.749 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 11 23:15:53.749 INFO [stderr]  --> src/collection/find.rs:1:1
Dec 11 23:15:53.749 INFO [stderr]   |
Dec 11 23:15:53.750 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:53.750 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:53.750 INFO [stderr] 
Dec 11 23:15:53.750 INFO [stderr] warning: unused attribute
Dec 11 23:15:53.751 INFO [stderr]  --> src/collection/flatmap.rs:1:1
Dec 11 23:15:53.751 INFO [stderr]   |
Dec 11 23:15:53.751 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:53.751 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:53.751 INFO [stderr] 
Dec 11 23:15:53.751 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 11 23:15:53.751 INFO [stderr]  --> src/collection/flatmap.rs:1:1
Dec 11 23:15:53.751 INFO [stderr]   |
Dec 11 23:15:53.751 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:53.751 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:53.752 INFO [stderr] 
Dec 11 23:15:53.752 INFO [stderr] warning: unused attribute
Dec 11 23:15:53.752 INFO [stderr]  --> src/collection/map.rs:1:1
Dec 11 23:15:53.752 INFO [stderr]   |
Dec 11 23:15:53.752 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:53.752 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:53.752 INFO [stderr] 
Dec 11 23:15:53.752 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 11 23:15:53.752 INFO [stderr]  --> src/collection/map.rs:1:1
Dec 11 23:15:53.752 INFO [stderr]   |
Dec 11 23:15:53.752 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:53.752 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:53.752 INFO [stderr] 
Dec 11 23:15:53.752 INFO [stderr] warning: unused attribute
Dec 11 23:15:53.753 INFO [stderr]  --> src/collection/reduce.rs:2:1
Dec 11 23:15:53.753 INFO [stderr]   |
Dec 11 23:15:53.753 INFO [stderr] 2 | #![crate_name = "sknife"]
Dec 11 23:15:53.753 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:53.753 INFO [stderr] 
Dec 11 23:15:53.753 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 11 23:15:53.753 INFO [stderr]  --> src/collection/reduce.rs:2:1
Dec 11 23:15:53.753 INFO [stderr]   |
Dec 11 23:15:53.753 INFO [stderr] 2 | #![crate_name = "sknife"]
Dec 11 23:15:53.753 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:53.753 INFO [stderr] 
Dec 11 23:15:53.753 INFO [stderr] warning: unused attribute
Dec 11 23:15:53.754 INFO [stderr]  --> src/collection/zip.rs:1:1
Dec 11 23:15:53.754 INFO [stderr]   |
Dec 11 23:15:53.754 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:53.754 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:53.754 INFO [stderr] 
Dec 11 23:15:53.755 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 11 23:15:53.755 INFO [stderr]  --> src/collection/zip.rs:1:1
Dec 11 23:15:53.755 INFO [stderr]   |
Dec 11 23:15:53.755 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:53.755 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:53.755 INFO [stderr] 
Dec 11 23:15:54.712 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:15:54.712 INFO [stderr]   --> src/collection/any.rs:44:13
Dec 11 23:15:54.712 INFO [stderr]    |
Dec 11 23:15:54.712 INFO [stderr] 44 |         let mut list = vec![];
Dec 11 23:15:54.713 INFO [stderr]    |             ----^^^^
Dec 11 23:15:54.716 INFO [stderr]    |             |
Dec 11 23:15:54.716 INFO [stderr]    |             help: remove this `mut`
Dec 11 23:15:54.744 INFO [stderr]    |
Dec 11 23:15:54.744 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 23:15:54.744 INFO [stderr] 
Dec 11 23:15:54.744 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:15:54.744 INFO [stderr]   --> src/collection/any.rs:54:13
Dec 11 23:15:54.744 INFO [stderr]    |
Dec 11 23:15:54.744 INFO [stderr] 54 |         let mut list = vec![1, 2, 3, 4];
Dec 11 23:15:54.744 INFO [stderr]    |             ----^^^^
Dec 11 23:15:54.744 INFO [stderr]    |             |
Dec 11 23:15:54.744 INFO [stderr]    |             help: remove this `mut`
Dec 11 23:15:54.744 INFO [stderr] 
Dec 11 23:15:54.784 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:15:54.784 INFO [stderr]   --> src/collection/count.rs:32:13
Dec 11 23:15:54.784 INFO [stderr]    |
Dec 11 23:15:54.784 INFO [stderr] 32 |         let mut list: Vec<i32> = vec![];
Dec 11 23:15:54.784 INFO [stderr]    |             ----^^^^
Dec 11 23:15:54.784 INFO [stderr]    |             |
Dec 11 23:15:54.784 INFO [stderr]    |             help: remove this `mut`
Dec 11 23:15:54.784 INFO [stderr] 
Dec 11 23:15:54.784 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:15:54.784 INFO [stderr]   --> src/collection/count.rs:38:13
Dec 11 23:15:54.784 INFO [stderr]    |
Dec 11 23:15:54.784 INFO [stderr] 38 |         let mut list = vec![1, 2, 3, 4];
Dec 11 23:15:54.784 INFO [stderr]    |             ----^^^^
Dec 11 23:15:54.784 INFO [stderr]    |             |
Dec 11 23:15:54.784 INFO [stderr]    |             help: remove this `mut`
Dec 11 23:15:54.784 INFO [stderr] 
Dec 11 23:15:54.792 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:15:54.792 INFO [stderr]   --> src/collection/find.rs:43:13
Dec 11 23:15:54.792 INFO [stderr]    |
Dec 11 23:15:54.792 INFO [stderr] 43 |         let mut list = vec![];
Dec 11 23:15:54.792 INFO [stderr]    |             ----^^^^
Dec 11 23:15:54.792 INFO [stderr]    |             |
Dec 11 23:15:54.792 INFO [stderr]    |             help: remove this `mut`
Dec 11 23:15:54.792 INFO [stderr] 
Dec 11 23:15:54.792 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:15:54.792 INFO [stderr]   --> src/collection/find.rs:53:13
Dec 11 23:15:54.792 INFO [stderr]    |
Dec 11 23:15:54.792 INFO [stderr] 53 |         let mut list = vec![1, 2, 3, 4];
Dec 11 23:15:54.792 INFO [stderr]    |             ----^^^^
Dec 11 23:15:54.792 INFO [stderr]    |             |
Dec 11 23:15:54.792 INFO [stderr]    |             help: remove this `mut`
Dec 11 23:15:54.792 INFO [stderr] 
Dec 11 23:15:54.952 INFO [stderr] warning: unused attribute
Dec 11 23:15:54.952 INFO [stderr]  --> src/collection/any.rs:1:1
Dec 11 23:15:54.952 INFO [stderr]   |
Dec 11 23:15:54.952 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:54.952 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:54.952 INFO [stderr]   |
Dec 11 23:15:54.952 INFO [stderr]   = note: #[warn(unused_attributes)] on by default
Dec 11 23:15:54.952 INFO [stderr] 
Dec 11 23:15:54.952 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 11 23:15:54.952 INFO [stderr]  --> src/collection/any.rs:1:1
Dec 11 23:15:54.952 INFO [stderr]   |
Dec 11 23:15:54.952 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:54.952 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:54.952 INFO [stderr] 
Dec 11 23:15:54.952 INFO [stderr] warning: unused attribute
Dec 11 23:15:54.952 INFO [stderr]  --> src/collection/count.rs:1:1
Dec 11 23:15:54.952 INFO [stderr]   |
Dec 11 23:15:54.952 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:54.953 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:54.953 INFO [stderr] 
Dec 11 23:15:54.953 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 11 23:15:54.953 INFO [stderr]  --> src/collection/count.rs:1:1
Dec 11 23:15:54.953 INFO [stderr]   |
Dec 11 23:15:54.953 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:54.953 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:54.953 INFO [stderr] 
Dec 11 23:15:54.964 INFO [stderr] warning: unused attribute
Dec 11 23:15:54.964 INFO [stderr]  --> src/collection/find.rs:1:1
Dec 11 23:15:54.964 INFO [stderr]   |
Dec 11 23:15:54.964 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:54.964 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:54.964 INFO [stderr] 
Dec 11 23:15:54.964 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 11 23:15:54.964 INFO [stderr]  --> src/collection/find.rs:1:1
Dec 11 23:15:54.964 INFO [stderr]   |
Dec 11 23:15:54.964 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:54.964 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:54.964 INFO [stderr] 
Dec 11 23:15:54.964 INFO [stderr] warning: unused attribute
Dec 11 23:15:54.964 INFO [stderr]  --> src/collection/flatmap.rs:1:1
Dec 11 23:15:54.964 INFO [stderr]   |
Dec 11 23:15:54.964 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:54.964 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:54.964 INFO [stderr] 
Dec 11 23:15:54.964 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 11 23:15:54.964 INFO [stderr]  --> src/collection/flatmap.rs:1:1
Dec 11 23:15:54.964 INFO [stderr]   |
Dec 11 23:15:54.964 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:54.964 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:54.964 INFO [stderr] 
Dec 11 23:15:54.972 INFO [stderr] warning: unused attribute
Dec 11 23:15:54.972 INFO [stderr]  --> src/collection/map.rs:1:1
Dec 11 23:15:54.972 INFO [stderr]   |
Dec 11 23:15:54.972 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:54.972 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:54.972 INFO [stderr] 
Dec 11 23:15:54.972 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 11 23:15:54.972 INFO [stderr]  --> src/collection/map.rs:1:1
Dec 11 23:15:54.972 INFO [stderr]   |
Dec 11 23:15:54.972 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:54.972 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:54.972 INFO [stderr] 
Dec 11 23:15:54.972 INFO [stderr] warning: unused attribute
Dec 11 23:15:54.972 INFO [stderr]  --> src/collection/reduce.rs:2:1
Dec 11 23:15:54.972 INFO [stderr]   |
Dec 11 23:15:54.972 INFO [stderr] 2 | #![crate_name = "sknife"]
Dec 11 23:15:54.972 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:54.972 INFO [stderr] 
Dec 11 23:15:54.972 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 11 23:15:54.972 INFO [stderr]  --> src/collection/reduce.rs:2:1
Dec 11 23:15:54.972 INFO [stderr]   |
Dec 11 23:15:54.972 INFO [stderr] 2 | #![crate_name = "sknife"]
Dec 11 23:15:54.972 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:54.972 INFO [stderr] 
Dec 11 23:15:54.984 INFO [stderr] warning: unused attribute
Dec 11 23:15:54.984 INFO [stderr]  --> src/collection/zip.rs:1:1
Dec 11 23:15:54.984 INFO [stderr]   |
Dec 11 23:15:54.984 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:54.984 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:54.984 INFO [stderr] 
Dec 11 23:15:54.984 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 11 23:15:54.984 INFO [stderr]  --> src/collection/zip.rs:1:1
Dec 11 23:15:54.984 INFO [stderr]   |
Dec 11 23:15:54.984 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 11 23:15:54.984 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:15:54.984 INFO [stderr] 
Dec 11 23:15:55.400 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:15:55.400 INFO [stderr]   --> benches/collections_reduce.rs:15:13
Dec 11 23:15:55.400 INFO [stderr]    |
Dec 11 23:15:55.400 INFO [stderr] 15 |         let mut fact = |acc: i32, x| acc * x;
Dec 11 23:15:55.400 INFO [stderr]    |             ----^^^^
Dec 11 23:15:55.400 INFO [stderr]    |             |
Dec 11 23:15:55.400 INFO [stderr]    |             help: remove this `mut`
Dec 11 23:15:55.432 INFO [stderr]    |
Dec 11 23:15:55.432 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 23:15:55.432 INFO [stderr] 
Dec 11 23:15:55.432 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:15:55.432 INFO [stderr]   --> benches/collections_reduce.rs:21:13
Dec 11 23:15:55.432 INFO [stderr]    |
Dec 11 23:15:55.432 INFO [stderr] 21 |         let mut list: Vec<i32> = (1..50).collect();
Dec 11 23:15:55.432 INFO [stderr]    |             ----^^^^
Dec 11 23:15:55.432 INFO [stderr]    |             |
Dec 11 23:15:55.432 INFO [stderr]    |             help: remove this `mut`
Dec 11 23:15:55.432 INFO [stderr] 
Dec 11 23:15:55.432 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:15:55.432 INFO [stderr]   --> benches/collections_reduce.rs:22:13
Dec 11 23:15:55.432 INFO [stderr]    |
Dec 11 23:15:55.432 INFO [stderr] 22 |         let mut fact = |acc: i32, x| acc * x;
Dec 11 23:15:55.432 INFO [stderr]    |             ----^^^^
Dec 11 23:15:55.432 INFO [stderr]    |             |
Dec 11 23:15:55.432 INFO [stderr]    |             help: remove this `mut`
Dec 11 23:15:55.432 INFO [stderr] 
Dec 11 23:15:55.652 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:15:55.652 INFO [stderr]   --> benches/collections_flatmap.rs:15:13
Dec 11 23:15:55.652 INFO [stderr]    |
Dec 11 23:15:55.652 INFO [stderr] 15 |         let mut slice: &mut [i32] = list.as_mut_slice();
Dec 11 23:15:55.652 INFO [stderr]    |             ----^^^^^
Dec 11 23:15:55.652 INFO [stderr]    |             |
Dec 11 23:15:55.652 INFO [stderr]    |             help: remove this `mut`
Dec 11 23:15:55.652 INFO [stderr]    |
Dec 11 23:15:55.652 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 23:15:55.652 INFO [stderr] 
Dec 11 23:15:55.652 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:15:55.652 INFO [stderr]   --> benches/collections_flatmap.rs:16:13
Dec 11 23:15:55.652 INFO [stderr]    |
Dec 11 23:15:55.652 INFO [stderr] 16 |         let mut plus_one = |x: &mut i32| vec![*x];
Dec 11 23:15:55.652 INFO [stderr]    |             ----^^^^^^^^
Dec 11 23:15:55.652 INFO [stderr]    |             |
Dec 11 23:15:55.652 INFO [stderr]    |             help: remove this `mut`
Dec 11 23:15:55.652 INFO [stderr] 
Dec 11 23:15:55.652 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:15:55.652 INFO [stderr]   --> benches/collections_flatmap.rs:22:13
Dec 11 23:15:55.652 INFO [stderr]    |
Dec 11 23:15:55.652 INFO [stderr] 22 |         let mut list = vec![1, 2, 3];
Dec 11 23:15:55.652 INFO [stderr]    |             ----^^^^
Dec 11 23:15:55.653 INFO [stderr]    |             |
Dec 11 23:15:55.653 INFO [stderr]    |             help: remove this `mut`
Dec 11 23:15:55.653 INFO [stderr] 
Dec 11 23:15:55.653 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:15:55.653 INFO [stderr]   --> benches/collections_flatmap.rs:23:13
Dec 11 23:15:55.653 INFO [stderr]    |
Dec 11 23:15:55.653 INFO [stderr] 23 |         let mut plus_one = |x| vec![x];
Dec 11 23:15:55.653 INFO [stderr]    |             ----^^^^^^^^
Dec 11 23:15:55.653 INFO [stderr]    |             |
Dec 11 23:15:55.653 INFO [stderr]    |             help: remove this `mut`
Dec 11 23:15:55.653 INFO [stderr] 
Dec 11 23:15:55.984 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:15:55.984 INFO [stderr]  --> tests/collections_any.rs:7:9
Dec 11 23:15:55.984 INFO [stderr]   |
Dec 11 23:15:55.984 INFO [stderr] 7 |     let mut list = vec![1, 2, 3, 4];
Dec 11 23:15:55.984 INFO [stderr]   |         ----^^^^
Dec 11 23:15:55.984 INFO [stderr]   |         |
Dec 11 23:15:55.984 INFO [stderr]   |         help: remove this `mut`
Dec 11 23:15:55.984 INFO [stderr]   |
Dec 11 23:15:55.984 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 11 23:15:55.984 INFO [stderr] 
Dec 11 23:15:56.108 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:15:56.108 INFO [stderr]   --> benches/collections_map.rs:15:13
Dec 11 23:15:56.108 INFO [stderr]    |
Dec 11 23:15:56.108 INFO [stderr] 15 |         let mut slice = list.as_mut_slice();
Dec 11 23:15:56.108 INFO [stderr]    |             ----^^^^^
Dec 11 23:15:56.108 INFO [stderr]    |             |
Dec 11 23:15:56.108 INFO [stderr]    |             help: remove this `mut`
Dec 11 23:15:56.108 INFO [stderr]    |
Dec 11 23:15:56.108 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 23:15:56.108 INFO [stderr] 
Dec 11 23:15:56.108 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:15:56.108 INFO [stderr]   --> benches/collections_map.rs:16:13
Dec 11 23:15:56.108 INFO [stderr]    |
Dec 11 23:15:56.108 INFO [stderr] 16 |         let mut plus_one = |x: i32| x + 1;
Dec 11 23:15:56.108 INFO [stderr]    |             ----^^^^^^^^
Dec 11 23:15:56.108 INFO [stderr]    |             |
Dec 11 23:15:56.108 INFO [stderr]    |             help: remove this `mut`
Dec 11 23:15:56.108 INFO [stderr] 
Dec 11 23:15:56.108 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:15:56.108 INFO [stderr]   --> benches/collections_map.rs:22:13
Dec 11 23:15:56.109 INFO [stderr]    |
Dec 11 23:15:56.109 INFO [stderr] 22 |         let mut list = vec![1, 2, 3];
Dec 11 23:15:56.109 INFO [stderr]    |             ----^^^^
Dec 11 23:15:56.109 INFO [stderr]    |             |
Dec 11 23:15:56.109 INFO [stderr]    |             help: remove this `mut`
Dec 11 23:15:56.109 INFO [stderr] 
Dec 11 23:15:56.109 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:15:56.109 INFO [stderr]   --> benches/collections_map.rs:23:13
Dec 11 23:15:56.109 INFO [stderr]    |
Dec 11 23:15:56.109 INFO [stderr] 23 |         let mut plus_one = |x| x + 1;
Dec 11 23:15:56.109 INFO [stderr]    |             ----^^^^^^^^
Dec 11 23:15:56.109 INFO [stderr]    |             |
Dec 11 23:15:56.109 INFO [stderr]    |             help: remove this `mut`
Dec 11 23:15:56.109 INFO [stderr] 
Dec 11 23:15:56.128 INFO [stderr] warning: variable does not need to be mutable
Dec 11 23:15:56.128 INFO [stderr]  --> tests/collections_find.rs:7:9
Dec 11 23:15:56.128 INFO [stderr]   |
Dec 11 23:15:56.128 INFO [stderr] 7 |     let mut list = vec![1, 3, 4, 7, 3, 9];
Dec 11 23:15:56.128 INFO [stderr]   |         ----^^^^
Dec 11 23:15:56.128 INFO [stderr]   |         |
Dec 11 23:15:56.128 INFO [stderr]   |         help: remove this `mut`
Dec 11 23:15:56.128 INFO [stderr]   |
Dec 11 23:15:56.128 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 11 23:15:56.128 INFO [stderr] 
Dec 11 23:15:56.198 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.51s
Dec 11 23:15:56.205 INFO [stderr] su: No module specific data is present
Dec 11 23:15:57.130 INFO running `"docker" "inspect" "2c29f0783e0a94cdb025b655501283205b150f47f872893b713b75a9d4164546"`
Dec 11 23:15:57.488 INFO running `"docker" "rm" "-f" "2c29f0783e0a94cdb025b655501283205b150f47f872893b713b75a9d4164546"`
Dec 11 23:15:57.812 INFO [stdout] 2c29f0783e0a94cdb025b655501283205b150f47f872893b713b75a9d4164546