Dec 18 04:35:34.088 INFO checking addityasingh/sknife against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 04:35:34.088 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/addityasingh/sknife:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 04:35:34.270 INFO [stdout] 3a89f1313cfa4148b859e4b164563db2102cab16a05deb7ab8feb24e449d7f77
Dec 18 04:35:34.277 INFO running `"docker" "start" "-a" "3a89f1313cfa4148b859e4b164563db2102cab16a05deb7ab8feb24e449d7f77"`
Dec 18 04:35:34.800 INFO [stderr]     Checking sknife v0.2.2 (/opt/crater/workdir)
Dec 18 04:35:34.992 INFO [stderr] warning: unused import: `super::*`
Dec 18 04:35:34.992 INFO [stderr]   --> src/collection/any.rs:40:9
Dec 18 04:35:34.992 INFO [stderr]    |
Dec 18 04:35:34.992 INFO [stderr] 40 |     use super::*;
Dec 18 04:35:34.992 INFO [stderr]    |         ^^^^^^^^
Dec 18 04:35:34.992 INFO [stderr]    |
Dec 18 04:35:34.992 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 04:35:34.992 INFO [stderr] 
Dec 18 04:35:34.992 INFO [stderr] warning: unused import: `super::*`
Dec 18 04:35:34.992 INFO [stderr]   --> src/collection/count.rs:28:9
Dec 18 04:35:34.992 INFO [stderr]    |
Dec 18 04:35:34.992 INFO [stderr] 28 |     use super::*;
Dec 18 04:35:34.992 INFO [stderr]    |         ^^^^^^^^
Dec 18 04:35:34.992 INFO [stderr] 
Dec 18 04:35:34.992 INFO [stderr] warning: unused import: `super::*`
Dec 18 04:35:34.992 INFO [stderr]   --> src/collection/find.rs:39:9
Dec 18 04:35:34.992 INFO [stderr]    |
Dec 18 04:35:34.992 INFO [stderr] 39 |     use super::*;
Dec 18 04:35:34.992 INFO [stderr]    |         ^^^^^^^^
Dec 18 04:35:34.993 INFO [stderr] 
Dec 18 04:35:34.993 INFO [stderr] warning: unused import: `super::*`
Dec 18 04:35:34.993 INFO [stderr]   --> src/collection/flatmap.rs:35:9
Dec 18 04:35:34.993 INFO [stderr]    |
Dec 18 04:35:34.993 INFO [stderr] 35 |     use super::*;
Dec 18 04:35:34.993 INFO [stderr]    |         ^^^^^^^^
Dec 18 04:35:34.993 INFO [stderr] 
Dec 18 04:35:34.993 INFO [stderr] warning: unused import: `std`
Dec 18 04:35:34.993 INFO [stderr]  --> src/collection/zip.rs:5:5
Dec 18 04:35:34.993 INFO [stderr]   |
Dec 18 04:35:34.993 INFO [stderr] 5 | use std;
Dec 18 04:35:34.993 INFO [stderr]   |     ^^^
Dec 18 04:35:34.993 INFO [stderr] 
Dec 18 04:35:35.032 INFO [stderr] warning: unused import: `std`
Dec 18 04:35:35.032 INFO [stderr]  --> src/collection/zip.rs:5:5
Dec 18 04:35:35.032 INFO [stderr]   |
Dec 18 04:35:35.032 INFO [stderr] 5 | use std;
Dec 18 04:35:35.032 INFO [stderr]   |     ^^^
Dec 18 04:35:35.032 INFO [stderr]   |
Dec 18 04:35:35.032 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 04:35:35.032 INFO [stderr] 
Dec 18 04:35:35.044 INFO [stderr] warning: unused attribute
Dec 18 04:35:35.044 INFO [stderr]  --> src/collection/any.rs:1:1
Dec 18 04:35:35.044 INFO [stderr]   |
Dec 18 04:35:35.044 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.044 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.045 INFO [stderr]   |
Dec 18 04:35:35.045 INFO [stderr]   = note: #[warn(unused_attributes)] on by default
Dec 18 04:35:35.045 INFO [stderr] 
Dec 18 04:35:35.045 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 18 04:35:35.045 INFO [stderr]  --> src/collection/any.rs:1:1
Dec 18 04:35:35.045 INFO [stderr]   |
Dec 18 04:35:35.045 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.045 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.045 INFO [stderr] 
Dec 18 04:35:35.045 INFO [stderr] warning: unused attribute
Dec 18 04:35:35.045 INFO [stderr]  --> src/collection/count.rs:1:1
Dec 18 04:35:35.045 INFO [stderr]   |
Dec 18 04:35:35.045 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.045 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.045 INFO [stderr] 
Dec 18 04:35:35.045 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 18 04:35:35.045 INFO [stderr]  --> src/collection/count.rs:1:1
Dec 18 04:35:35.045 INFO [stderr]   |
Dec 18 04:35:35.045 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.045 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.045 INFO [stderr] 
Dec 18 04:35:35.045 INFO [stderr] warning: unused attribute
Dec 18 04:35:35.045 INFO [stderr]  --> src/collection/find.rs:1:1
Dec 18 04:35:35.045 INFO [stderr]   |
Dec 18 04:35:35.045 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.045 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.045 INFO [stderr] 
Dec 18 04:35:35.045 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 18 04:35:35.045 INFO [stderr]  --> src/collection/find.rs:1:1
Dec 18 04:35:35.045 INFO [stderr]   |
Dec 18 04:35:35.045 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.045 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.045 INFO [stderr] 
Dec 18 04:35:35.045 INFO [stderr] warning: unused attribute
Dec 18 04:35:35.045 INFO [stderr]  --> src/collection/flatmap.rs:1:1
Dec 18 04:35:35.045 INFO [stderr]   |
Dec 18 04:35:35.045 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.045 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.045 INFO [stderr] 
Dec 18 04:35:35.045 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 18 04:35:35.045 INFO [stderr]  --> src/collection/flatmap.rs:1:1
Dec 18 04:35:35.045 INFO [stderr]   |
Dec 18 04:35:35.045 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.045 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.045 INFO [stderr] 
Dec 18 04:35:35.045 INFO [stderr] warning: unused attribute
Dec 18 04:35:35.045 INFO [stderr]  --> src/collection/map.rs:1:1
Dec 18 04:35:35.045 INFO [stderr]   |
Dec 18 04:35:35.045 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.045 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.045 INFO [stderr] 
Dec 18 04:35:35.045 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 18 04:35:35.045 INFO [stderr]  --> src/collection/map.rs:1:1
Dec 18 04:35:35.045 INFO [stderr]   |
Dec 18 04:35:35.045 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.045 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.045 INFO [stderr] 
Dec 18 04:35:35.045 INFO [stderr] warning: unused attribute
Dec 18 04:35:35.045 INFO [stderr]  --> src/collection/reduce.rs:2:1
Dec 18 04:35:35.045 INFO [stderr]   |
Dec 18 04:35:35.045 INFO [stderr] 2 | #![crate_name = "sknife"]
Dec 18 04:35:35.045 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.045 INFO [stderr] 
Dec 18 04:35:35.045 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 18 04:35:35.045 INFO [stderr]  --> src/collection/reduce.rs:2:1
Dec 18 04:35:35.045 INFO [stderr]   |
Dec 18 04:35:35.045 INFO [stderr] 2 | #![crate_name = "sknife"]
Dec 18 04:35:35.045 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.045 INFO [stderr] 
Dec 18 04:35:35.045 INFO [stderr] warning: unused attribute
Dec 18 04:35:35.045 INFO [stderr]  --> src/collection/zip.rs:1:1
Dec 18 04:35:35.045 INFO [stderr]   |
Dec 18 04:35:35.045 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.045 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.045 INFO [stderr] 
Dec 18 04:35:35.045 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 18 04:35:35.045 INFO [stderr]  --> src/collection/zip.rs:1:1
Dec 18 04:35:35.045 INFO [stderr]   |
Dec 18 04:35:35.045 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.045 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.045 INFO [stderr] 
Dec 18 04:35:35.627 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:35:35.628 INFO [stderr]   --> src/collection/any.rs:44:13
Dec 18 04:35:35.628 INFO [stderr]    |
Dec 18 04:35:35.628 INFO [stderr] 44 |         let mut list = vec![];
Dec 18 04:35:35.628 INFO [stderr]    |             ----^^^^
Dec 18 04:35:35.628 INFO [stderr]    |             |
Dec 18 04:35:35.628 INFO [stderr]    |             help: remove this `mut`
Dec 18 04:35:35.660 INFO [stderr]    |
Dec 18 04:35:35.660 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 04:35:35.660 INFO [stderr] 
Dec 18 04:35:35.662 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:35:35.662 INFO [stderr]   --> src/collection/any.rs:54:13
Dec 18 04:35:35.662 INFO [stderr]    |
Dec 18 04:35:35.662 INFO [stderr] 54 |         let mut list = vec![1, 2, 3, 4];
Dec 18 04:35:35.662 INFO [stderr]    |             ----^^^^
Dec 18 04:35:35.662 INFO [stderr]    |             |
Dec 18 04:35:35.662 INFO [stderr]    |             help: remove this `mut`
Dec 18 04:35:35.664 INFO [stderr] 
Dec 18 04:35:35.667 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:35:35.667 INFO [stderr]   --> src/collection/count.rs:32:13
Dec 18 04:35:35.667 INFO [stderr]    |
Dec 18 04:35:35.667 INFO [stderr] 32 |         let mut list: Vec<i32> = vec![];
Dec 18 04:35:35.667 INFO [stderr]    |             ----^^^^
Dec 18 04:35:35.667 INFO [stderr]    |             |
Dec 18 04:35:35.667 INFO [stderr]    |             help: remove this `mut`
Dec 18 04:35:35.692 INFO [stderr] 
Dec 18 04:35:35.700 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:35:35.700 INFO [stderr]   --> src/collection/count.rs:38:13
Dec 18 04:35:35.700 INFO [stderr]    |
Dec 18 04:35:35.700 INFO [stderr] 38 |         let mut list = vec![1, 2, 3, 4];
Dec 18 04:35:35.700 INFO [stderr]    |             ----^^^^
Dec 18 04:35:35.700 INFO [stderr]    |             |
Dec 18 04:35:35.700 INFO [stderr]    |             help: remove this `mut`
Dec 18 04:35:35.700 INFO [stderr] 
Dec 18 04:35:35.705 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:35:35.705 INFO [stderr]   --> src/collection/find.rs:43:13
Dec 18 04:35:35.705 INFO [stderr]    |
Dec 18 04:35:35.705 INFO [stderr] 43 |         let mut list = vec![];
Dec 18 04:35:35.705 INFO [stderr]    |             ----^^^^
Dec 18 04:35:35.705 INFO [stderr]    |             |
Dec 18 04:35:35.705 INFO [stderr]    |             help: remove this `mut`
Dec 18 04:35:35.722 INFO [stderr] 
Dec 18 04:35:35.728 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:35:35.728 INFO [stderr]   --> src/collection/find.rs:53:13
Dec 18 04:35:35.728 INFO [stderr]    |
Dec 18 04:35:35.728 INFO [stderr] 53 |         let mut list = vec![1, 2, 3, 4];
Dec 18 04:35:35.728 INFO [stderr]    |             ----^^^^
Dec 18 04:35:35.728 INFO [stderr]    |             |
Dec 18 04:35:35.728 INFO [stderr]    |             help: remove this `mut`
Dec 18 04:35:35.728 INFO [stderr] 
Dec 18 04:35:35.848 INFO [stderr] warning: unused attribute
Dec 18 04:35:35.848 INFO [stderr]  --> src/collection/any.rs:1:1
Dec 18 04:35:35.848 INFO [stderr]   |
Dec 18 04:35:35.848 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.848 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.848 INFO [stderr]   |
Dec 18 04:35:35.848 INFO [stderr]   = note: #[warn(unused_attributes)] on by default
Dec 18 04:35:35.848 INFO [stderr] 
Dec 18 04:35:35.849 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 18 04:35:35.849 INFO [stderr]  --> src/collection/any.rs:1:1
Dec 18 04:35:35.849 INFO [stderr]   |
Dec 18 04:35:35.849 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.849 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.849 INFO [stderr] 
Dec 18 04:35:35.850 INFO [stderr] warning: unused attribute
Dec 18 04:35:35.850 INFO [stderr]  --> src/collection/count.rs:1:1
Dec 18 04:35:35.850 INFO [stderr]   |
Dec 18 04:35:35.856 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.856 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.856 INFO [stderr] 
Dec 18 04:35:35.856 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 18 04:35:35.856 INFO [stderr]  --> src/collection/count.rs:1:1
Dec 18 04:35:35.857 INFO [stderr]   |
Dec 18 04:35:35.857 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.857 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.857 INFO [stderr] 
Dec 18 04:35:35.858 INFO [stderr] warning: unused attribute
Dec 18 04:35:35.858 INFO [stderr]  --> src/collection/find.rs:1:1
Dec 18 04:35:35.858 INFO [stderr]   |
Dec 18 04:35:35.864 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.864 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.864 INFO [stderr] 
Dec 18 04:35:35.864 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 18 04:35:35.864 INFO [stderr]  --> src/collection/find.rs:1:1
Dec 18 04:35:35.864 INFO [stderr]   |
Dec 18 04:35:35.865 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.865 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.865 INFO [stderr] 
Dec 18 04:35:35.866 INFO [stderr] warning: unused attribute
Dec 18 04:35:35.866 INFO [stderr]  --> src/collection/flatmap.rs:1:1
Dec 18 04:35:35.866 INFO [stderr]   |
Dec 18 04:35:35.866 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.866 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.866 INFO [stderr] 
Dec 18 04:35:35.866 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 18 04:35:35.866 INFO [stderr]  --> src/collection/flatmap.rs:1:1
Dec 18 04:35:35.866 INFO [stderr]   |
Dec 18 04:35:35.866 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.866 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.866 INFO [stderr] 
Dec 18 04:35:35.867 INFO [stderr] warning: unused attribute
Dec 18 04:35:35.867 INFO [stderr]  --> src/collection/map.rs:1:1
Dec 18 04:35:35.867 INFO [stderr]   |
Dec 18 04:35:35.867 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.867 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.867 INFO [stderr] 
Dec 18 04:35:35.867 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 18 04:35:35.867 INFO [stderr]  --> src/collection/map.rs:1:1
Dec 18 04:35:35.867 INFO [stderr]   |
Dec 18 04:35:35.868 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.868 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.868 INFO [stderr] 
Dec 18 04:35:35.868 INFO [stderr] warning: unused attribute
Dec 18 04:35:35.869 INFO [stderr]  --> src/collection/reduce.rs:2:1
Dec 18 04:35:35.869 INFO [stderr]   |
Dec 18 04:35:35.869 INFO [stderr] 2 | #![crate_name = "sknife"]
Dec 18 04:35:35.869 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.869 INFO [stderr] 
Dec 18 04:35:35.869 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 18 04:35:35.869 INFO [stderr]  --> src/collection/reduce.rs:2:1
Dec 18 04:35:35.869 INFO [stderr]   |
Dec 18 04:35:35.869 INFO [stderr] 2 | #![crate_name = "sknife"]
Dec 18 04:35:35.870 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.870 INFO [stderr] 
Dec 18 04:35:35.871 INFO [stderr] warning: unused attribute
Dec 18 04:35:35.871 INFO [stderr]  --> src/collection/zip.rs:1:1
Dec 18 04:35:35.871 INFO [stderr]   |
Dec 18 04:35:35.871 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.871 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.871 INFO [stderr] 
Dec 18 04:35:35.871 INFO [stderr] warning: crate-level attribute should be in the root module
Dec 18 04:35:35.872 INFO [stderr]  --> src/collection/zip.rs:1:1
Dec 18 04:35:35.872 INFO [stderr]   |
Dec 18 04:35:35.872 INFO [stderr] 1 | #![crate_name = "sknife"]
Dec 18 04:35:35.872 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:35:35.872 INFO [stderr] 
Dec 18 04:35:35.888 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:35:35.888 INFO [stderr]   --> benches/collections_reduce.rs:15:13
Dec 18 04:35:35.888 INFO [stderr]    |
Dec 18 04:35:35.888 INFO [stderr] 15 |         let mut fact = |acc: i32, x| acc * x;
Dec 18 04:35:35.888 INFO [stderr]    |             ----^^^^
Dec 18 04:35:35.888 INFO [stderr]    |             |
Dec 18 04:35:35.889 INFO [stderr]    |             help: remove this `mut`
Dec 18 04:35:35.889 INFO [stderr]    |
Dec 18 04:35:35.889 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 04:35:35.889 INFO [stderr] 
Dec 18 04:35:35.889 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:35:35.889 INFO [stderr]   --> benches/collections_reduce.rs:21:13
Dec 18 04:35:35.889 INFO [stderr]    |
Dec 18 04:35:35.889 INFO [stderr] 21 |         let mut list: Vec<i32> = (1..50).collect();
Dec 18 04:35:35.889 INFO [stderr]    |             ----^^^^
Dec 18 04:35:35.889 INFO [stderr]    |             |
Dec 18 04:35:35.889 INFO [stderr]    |             help: remove this `mut`
Dec 18 04:35:35.890 INFO [stderr] 
Dec 18 04:35:35.890 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:35:35.890 INFO [stderr]   --> benches/collections_reduce.rs:22:13
Dec 18 04:35:35.890 INFO [stderr]    |
Dec 18 04:35:35.890 INFO [stderr] 22 |         let mut fact = |acc: i32, x| acc * x;
Dec 18 04:35:35.890 INFO [stderr]    |             ----^^^^
Dec 18 04:35:35.890 INFO [stderr]    |             |
Dec 18 04:35:35.890 INFO [stderr]    |             help: remove this `mut`
Dec 18 04:35:35.890 INFO [stderr] 
Dec 18 04:35:35.916 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:35:35.916 INFO [stderr]   --> benches/collections_map.rs:15:13
Dec 18 04:35:35.916 INFO [stderr]    |
Dec 18 04:35:35.916 INFO [stderr] 15 |         let mut slice = list.as_mut_slice();
Dec 18 04:35:35.916 INFO [stderr]    |             ----^^^^^
Dec 18 04:35:35.916 INFO [stderr]    |             |
Dec 18 04:35:35.916 INFO [stderr]    |             help: remove this `mut`
Dec 18 04:35:35.917 INFO [stderr]    |
Dec 18 04:35:35.917 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 04:35:35.917 INFO [stderr] 
Dec 18 04:35:35.917 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:35:35.917 INFO [stderr]   --> benches/collections_map.rs:16:13
Dec 18 04:35:35.917 INFO [stderr]    |
Dec 18 04:35:35.917 INFO [stderr] 16 |         let mut plus_one = |x: i32| x + 1;
Dec 18 04:35:35.917 INFO [stderr]    |             ----^^^^^^^^
Dec 18 04:35:35.917 INFO [stderr]    |             |
Dec 18 04:35:35.917 INFO [stderr]    |             help: remove this `mut`
Dec 18 04:35:35.917 INFO [stderr] 
Dec 18 04:35:35.944 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:35:35.944 INFO [stderr]   --> benches/collections_map.rs:22:13
Dec 18 04:35:35.944 INFO [stderr]    |
Dec 18 04:35:35.944 INFO [stderr] 22 |         let mut list = vec![1, 2, 3];
Dec 18 04:35:35.944 INFO [stderr]    |             ----^^^^
Dec 18 04:35:35.944 INFO [stderr]    |             |
Dec 18 04:35:35.944 INFO [stderr]    |             help: remove this `mut`
Dec 18 04:35:35.944 INFO [stderr] 
Dec 18 04:35:35.944 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:35:35.944 INFO [stderr]   --> benches/collections_map.rs:23:13
Dec 18 04:35:35.944 INFO [stderr]    |
Dec 18 04:35:35.944 INFO [stderr] 23 |         let mut plus_one = |x| x + 1;
Dec 18 04:35:35.944 INFO [stderr]    |             ----^^^^^^^^
Dec 18 04:35:35.944 INFO [stderr]    |             |
Dec 18 04:35:35.944 INFO [stderr]    |             help: remove this `mut`
Dec 18 04:35:35.944 INFO [stderr] 
Dec 18 04:35:36.203 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:35:36.204 INFO [stderr]   --> benches/collections_flatmap.rs:15:13
Dec 18 04:35:36.204 INFO [stderr]    |
Dec 18 04:35:36.204 INFO [stderr] 15 |         let mut slice: &mut [i32] = list.as_mut_slice();
Dec 18 04:35:36.204 INFO [stderr]    |             ----^^^^^
Dec 18 04:35:36.205 INFO [stderr]    |             |
Dec 18 04:35:36.205 INFO [stderr]    |             help: remove this `mut`
Dec 18 04:35:36.205 INFO [stderr]    |
Dec 18 04:35:36.205 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 04:35:36.206 INFO [stderr] 
Dec 18 04:35:36.206 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:35:36.206 INFO [stderr]   --> benches/collections_flatmap.rs:16:13
Dec 18 04:35:36.206 INFO [stderr]    |
Dec 18 04:35:36.206 INFO [stderr] 16 |         let mut plus_one = |x: &mut i32| vec![*x];
Dec 18 04:35:36.207 INFO [stderr]    |             ----^^^^^^^^
Dec 18 04:35:36.207 INFO [stderr]    |             |
Dec 18 04:35:36.207 INFO [stderr]    |             help: remove this `mut`
Dec 18 04:35:36.207 INFO [stderr] 
Dec 18 04:35:36.213 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:35:36.213 INFO [stderr]   --> benches/collections_flatmap.rs:22:13
Dec 18 04:35:36.214 INFO [stderr]    |
Dec 18 04:35:36.214 INFO [stderr] 22 |         let mut list = vec![1, 2, 3];
Dec 18 04:35:36.214 INFO [stderr]    |             ----^^^^
Dec 18 04:35:36.214 INFO [stderr]    |             |
Dec 18 04:35:36.214 INFO [stderr]    |             help: remove this `mut`
Dec 18 04:35:36.215 INFO [stderr] 
Dec 18 04:35:36.215 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:35:36.215 INFO [stderr]   --> benches/collections_flatmap.rs:23:13
Dec 18 04:35:36.215 INFO [stderr]    |
Dec 18 04:35:36.215 INFO [stderr] 23 |         let mut plus_one = |x| vec![x];
Dec 18 04:35:36.216 INFO [stderr]    |             ----^^^^^^^^
Dec 18 04:35:36.216 INFO [stderr]    |             |
Dec 18 04:35:36.216 INFO [stderr]    |             help: remove this `mut`
Dec 18 04:35:36.216 INFO [stderr] 
Dec 18 04:35:36.216 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:35:36.217 INFO [stderr]  --> tests/collections_find.rs:7:9
Dec 18 04:35:36.217 INFO [stderr]   |
Dec 18 04:35:36.217 INFO [stderr] 7 |     let mut list = vec![1, 3, 4, 7, 3, 9];
Dec 18 04:35:36.217 INFO [stderr]   |         ----^^^^
Dec 18 04:35:36.218 INFO [stderr]   |         |
Dec 18 04:35:36.218 INFO [stderr]   |         help: remove this `mut`
Dec 18 04:35:36.218 INFO [stderr]   |
Dec 18 04:35:36.218 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 18 04:35:36.218 INFO [stderr] 
Dec 18 04:35:36.229 INFO [stderr] warning: variable does not need to be mutable
Dec 18 04:35:36.229 INFO [stderr]  --> tests/collections_any.rs:7:9
Dec 18 04:35:36.229 INFO [stderr]   |
Dec 18 04:35:36.229 INFO [stderr] 7 |     let mut list = vec![1, 2, 3, 4];
Dec 18 04:35:36.229 INFO [stderr]   |         ----^^^^
Dec 18 04:35:36.229 INFO [stderr]   |         |
Dec 18 04:35:36.229 INFO [stderr]   |         help: remove this `mut`
Dec 18 04:35:36.229 INFO [stderr]   |
Dec 18 04:35:36.229 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 18 04:35:36.229 INFO [stderr] 
Dec 18 04:35:36.353 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.56s
Dec 18 04:35:37.507 INFO running `"docker" "inspect" "3a89f1313cfa4148b859e4b164563db2102cab16a05deb7ab8feb24e449d7f77"`
Dec 18 04:35:37.862 INFO running `"docker" "rm" "-f" "3a89f1313cfa4148b859e4b164563db2102cab16a05deb7ab8feb24e449d7f77"`
Dec 18 04:35:38.276 INFO [stdout] 3a89f1313cfa4148b859e4b164563db2102cab16a05deb7ab8feb24e449d7f77