Nov 01 04:17:00.923 INFO checking hardvain/rust-practice against master#05812fa8c588473f03e3fa7cf59cd84f4f37c715 for pr-55538
Nov 01 04:17:00.924 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-4/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55538/master#05812fa8c588473f03e3fa7cf59cd84f4f37c715:/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 +05812fa8c588473f03e3fa7cf59cd84f4f37c715-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"`
Nov 01 04:17:01.312 INFO blam! 2bd3651ef8c528a582645e97c11d1f9b05c9513393f9f4e1c7aa192320149dbc
Nov 01 04:17:01.314 INFO running `"docker" "start" "-a" "2bd3651ef8c528a582645e97c11d1f9b05c9513393f9f4e1c7aa192320149dbc"`
Nov 01 04:17:03.696 INFO kablam! usermod: no changes
Nov 01 04:17:03.772 INFO kablam!     Checking practice v0.1.0 (/source)
Nov 01 04:17:04.400 INFO kablam! warning: unused variable: `sample`
Nov 01 04:17:04.400 INFO kablam!  --> src/main.rs:9:24
Nov 01 04:17:04.400 INFO kablam!   |
Nov 01 04:17:04.400 INFO kablam! 9 | fn taking_owned_sample(sample: Sample) {}
Nov 01 04:17:04.400 INFO kablam!   |                        ^^^^^^ help: consider using `_sample` instead
Nov 01 04:17:04.400 INFO kablam!   |
Nov 01 04:17:04.400 INFO kablam!   = note: #[warn(unused_variables)] on by default
Nov 01 04:17:04.400 INFO kablam! 
Nov 01 04:17:04.400 INFO kablam! warning: unused variable: `sample`
Nov 01 04:17:04.400 INFO kablam!   --> src/main.rs:10:25
Nov 01 04:17:04.400 INFO kablam!    |
Nov 01 04:17:04.400 INFO kablam! 10 | fn taking_shared_sample(sample: &Sample) {}
Nov 01 04:17:04.400 INFO kablam!    |                         ^^^^^^ help: consider using `_sample` instead
Nov 01 04:17:04.401 INFO kablam! 
Nov 01 04:17:04.401 INFO kablam! warning: unused variable: `sample`
Nov 01 04:17:04.401 INFO kablam!   --> src/main.rs:11:26
Nov 01 04:17:04.401 INFO kablam!    |
Nov 01 04:17:04.401 INFO kablam! 11 | fn taking_mutable_sample(sample: &mut Sample) {}
Nov 01 04:17:04.401 INFO kablam!    |                          ^^^^^^ help: consider using `_sample` instead
Nov 01 04:17:04.401 INFO kablam! 
Nov 01 04:17:04.401 INFO kablam! warning: unused variable: `sample`
Nov 01 04:17:04.401 INFO kablam!   --> src/main.rs:37:9
Nov 01 04:17:04.401 INFO kablam!    |
Nov 01 04:17:04.401 INFO kablam! 37 |     let sample = Sample { key: 1 };
Nov 01 04:17:04.401 INFO kablam!    |         ^^^^^^ help: consider using `_sample` instead
Nov 01 04:17:04.401 INFO kablam! 
Nov 01 04:17:04.414 INFO kablam! warning: variable does not need to be mutable
Nov 01 04:17:04.414 INFO kablam!   --> src/main.rs:44:9
Nov 01 04:17:04.414 INFO kablam!    |
Nov 01 04:17:04.414 INFO kablam! 44 |     let mut sample = Sample { key: 1 };
Nov 01 04:17:04.414 INFO kablam!    |         ----^^^^^^
Nov 01 04:17:04.414 INFO kablam!    |         |
Nov 01 04:17:04.414 INFO kablam!    |         help: remove this `mut`
Nov 01 04:17:04.414 INFO kablam!    |
Nov 01 04:17:04.414 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 01 04:17:04.414 INFO kablam! 
Nov 01 04:17:04.414 INFO kablam! warning: variable does not need to be mutable
Nov 01 04:17:04.414 INFO kablam!   --> src/main.rs:60:9
Nov 01 04:17:04.414 INFO kablam!    |
Nov 01 04:17:04.414 INFO kablam! 60 |     let mut sample = Sample { key: 1 };
Nov 01 04:17:04.414 INFO kablam!    |         ----^^^^^^
Nov 01 04:17:04.414 INFO kablam!    |         |
Nov 01 04:17:04.414 INFO kablam!    |         help: remove this `mut`
Nov 01 04:17:04.414 INFO kablam! 
Nov 01 04:17:04.416 INFO kablam! warning: variable does not need to be mutable
Nov 01 04:17:04.416 INFO kablam!    --> src/main.rs:113:9
Nov 01 04:17:04.416 INFO kablam!     |
Nov 01 04:17:04.416 INFO kablam! 113 |     let mut sample = Sample { key: 1 };
Nov 01 04:17:04.416 INFO kablam!     |         ----^^^^^^
Nov 01 04:17:04.416 INFO kablam!     |         |
Nov 01 04:17:04.416 INFO kablam!     |         help: remove this `mut`
Nov 01 04:17:04.416 INFO kablam! 
Nov 01 04:17:04.416 INFO kablam! warning: variable does not need to be mutable
Nov 01 04:17:04.416 INFO kablam!    --> src/main.rs:121:9
Nov 01 04:17:04.416 INFO kablam!     |
Nov 01 04:17:04.416 INFO kablam! 121 |     let mut sample = Sample { key: 1 };
Nov 01 04:17:04.416 INFO kablam!     |         ----^^^^^^
Nov 01 04:17:04.416 INFO kablam!     |         |
Nov 01 04:17:04.416 INFO kablam!     |         help: remove this `mut`
Nov 01 04:17:04.416 INFO kablam! 
Nov 01 04:17:04.416 INFO kablam! warning: variable does not need to be mutable
Nov 01 04:17:04.416 INFO kablam!    --> src/main.rs:130:9
Nov 01 04:17:04.417 INFO kablam!     |
Nov 01 04:17:04.417 INFO kablam! 130 |     let mut sample = Sample { key: 1 };
Nov 01 04:17:04.417 INFO kablam!     |         ----^^^^^^
Nov 01 04:17:04.417 INFO kablam!     |         |
Nov 01 04:17:04.417 INFO kablam!     |         help: remove this `mut`
Nov 01 04:17:04.417 INFO kablam! 
Nov 01 04:17:04.417 INFO kablam! warning: variable does not need to be mutable
Nov 01 04:17:04.417 INFO kablam!    --> src/main.rs:137:9
Nov 01 04:17:04.417 INFO kablam!     |
Nov 01 04:17:04.417 INFO kablam! 137 |     let mut sample = Sample { key: 1 };
Nov 01 04:17:04.417 INFO kablam!     |         ----^^^^^^
Nov 01 04:17:04.417 INFO kablam!     |         |
Nov 01 04:17:04.417 INFO kablam!     |         help: remove this `mut`
Nov 01 04:17:04.417 INFO kablam! 
Nov 01 04:17:04.417 INFO kablam! warning: field is never used: `key`
Nov 01 04:17:04.417 INFO kablam!  --> src/main.rs:2:3
Nov 01 04:17:04.417 INFO kablam!   |
Nov 01 04:17:04.417 INFO kablam! 2 |   key: i32,
Nov 01 04:17:04.417 INFO kablam!   |   ^^^^^^^^
Nov 01 04:17:04.417 INFO kablam!   |
Nov 01 04:17:04.417 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 01 04:17:04.417 INFO kablam! 
Nov 01 04:17:04.417 INFO kablam! warning: function is never used: `taking_mutable_sample`
Nov 01 04:17:04.417 INFO kablam!   --> src/main.rs:11:1
Nov 01 04:17:04.417 INFO kablam!    |
Nov 01 04:17:04.417 INFO kablam! 11 | fn taking_mutable_sample(sample: &mut Sample) {}
Nov 01 04:17:04.417 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:17:04.417 INFO kablam! 
Nov 01 04:17:04.417 INFO kablam! warning: function is never used: `mutable_binding_function_calls`
Nov 01 04:17:04.417 INFO kablam!   --> src/main.rs:42:1
Nov 01 04:17:04.417 INFO kablam!    |
Nov 01 04:17:04.417 INFO kablam! 42 | fn mutable_binding_function_calls() {
Nov 01 04:17:04.417 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:17:04.417 INFO kablam! 
Nov 01 04:17:04.456 INFO kablam! warning: unused variable: `sample`
Nov 01 04:17:04.456 INFO kablam!  --> src/main.rs:9:24
Nov 01 04:17:04.456 INFO kablam!   |
Nov 01 04:17:04.456 INFO kablam! 9 | fn taking_owned_sample(sample: Sample) {}
Nov 01 04:17:04.456 INFO kablam!   |                        ^^^^^^ help: consider using `_sample` instead
Nov 01 04:17:04.456 INFO kablam!   |
Nov 01 04:17:04.456 INFO kablam!   = note: #[warn(unused_variables)] on by default
Nov 01 04:17:04.456 INFO kablam! 
Nov 01 04:17:04.456 INFO kablam! warning: unused variable: `sample`
Nov 01 04:17:04.456 INFO kablam!   --> src/main.rs:10:25
Nov 01 04:17:04.456 INFO kablam!    |
Nov 01 04:17:04.456 INFO kablam! 10 | fn taking_shared_sample(sample: &Sample) {}
Nov 01 04:17:04.456 INFO kablam!    |                         ^^^^^^ help: consider using `_sample` instead
Nov 01 04:17:04.456 INFO kablam! 
Nov 01 04:17:04.456 INFO kablam! warning: unused variable: `sample`
Nov 01 04:17:04.456 INFO kablam!   --> src/main.rs:11:26
Nov 01 04:17:04.456 INFO kablam!    |
Nov 01 04:17:04.456 INFO kablam! 11 | fn taking_mutable_sample(sample: &mut Sample) {}
Nov 01 04:17:04.456 INFO kablam!    |                          ^^^^^^ help: consider using `_sample` instead
Nov 01 04:17:04.457 INFO kablam! 
Nov 01 04:17:04.457 INFO kablam! warning: unused variable: `sample`
Nov 01 04:17:04.457 INFO kablam!   --> src/main.rs:37:9
Nov 01 04:17:04.457 INFO kablam!    |
Nov 01 04:17:04.457 INFO kablam! 37 |     let sample = Sample { key: 1 };
Nov 01 04:17:04.457 INFO kablam!    |         ^^^^^^ help: consider using `_sample` instead
Nov 01 04:17:04.457 INFO kablam! 
Nov 01 04:17:04.460 INFO kablam! warning: variable does not need to be mutable
Nov 01 04:17:04.460 INFO kablam!   --> src/main.rs:44:9
Nov 01 04:17:04.460 INFO kablam!    |
Nov 01 04:17:04.460 INFO kablam! 44 |     let mut sample = Sample { key: 1 };
Nov 01 04:17:04.460 INFO kablam!    |         ----^^^^^^
Nov 01 04:17:04.460 INFO kablam!    |         |
Nov 01 04:17:04.460 INFO kablam!    |         help: remove this `mut`
Nov 01 04:17:04.460 INFO kablam!    |
Nov 01 04:17:04.460 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 01 04:17:04.460 INFO kablam! 
Nov 01 04:17:04.460 INFO kablam! warning: variable does not need to be mutable
Nov 01 04:17:04.460 INFO kablam!   --> src/main.rs:60:9
Nov 01 04:17:04.460 INFO kablam!    |
Nov 01 04:17:04.460 INFO kablam! 60 |     let mut sample = Sample { key: 1 };
Nov 01 04:17:04.460 INFO kablam!    |         ----^^^^^^
Nov 01 04:17:04.460 INFO kablam!    |         |
Nov 01 04:17:04.460 INFO kablam!    |         help: remove this `mut`
Nov 01 04:17:04.460 INFO kablam! 
Nov 01 04:17:04.461 INFO kablam! warning: variable does not need to be mutable
Nov 01 04:17:04.461 INFO kablam!    --> src/main.rs:113:9
Nov 01 04:17:04.461 INFO kablam!     |
Nov 01 04:17:04.461 INFO kablam! 113 |     let mut sample = Sample { key: 1 };
Nov 01 04:17:04.461 INFO kablam!     |         ----^^^^^^
Nov 01 04:17:04.461 INFO kablam!     |         |
Nov 01 04:17:04.461 INFO kablam!     |         help: remove this `mut`
Nov 01 04:17:04.461 INFO kablam! 
Nov 01 04:17:04.461 INFO kablam! warning: variable does not need to be mutable
Nov 01 04:17:04.461 INFO kablam!    --> src/main.rs:121:9
Nov 01 04:17:04.461 INFO kablam!     |
Nov 01 04:17:04.461 INFO kablam! 121 |     let mut sample = Sample { key: 1 };
Nov 01 04:17:04.461 INFO kablam!     |         ----^^^^^^
Nov 01 04:17:04.461 INFO kablam!     |         |
Nov 01 04:17:04.461 INFO kablam!     |         help: remove this `mut`
Nov 01 04:17:04.461 INFO kablam! 
Nov 01 04:17:04.461 INFO kablam! warning: variable does not need to be mutable
Nov 01 04:17:04.461 INFO kablam!    --> src/main.rs:130:9
Nov 01 04:17:04.461 INFO kablam!     |
Nov 01 04:17:04.461 INFO kablam! 130 |     let mut sample = Sample { key: 1 };
Nov 01 04:17:04.461 INFO kablam!     |         ----^^^^^^
Nov 01 04:17:04.461 INFO kablam!     |         |
Nov 01 04:17:04.461 INFO kablam!     |         help: remove this `mut`
Nov 01 04:17:04.461 INFO kablam! 
Nov 01 04:17:04.461 INFO kablam! warning: variable does not need to be mutable
Nov 01 04:17:04.461 INFO kablam!    --> src/main.rs:137:9
Nov 01 04:17:04.461 INFO kablam!     |
Nov 01 04:17:04.461 INFO kablam! 137 |     let mut sample = Sample { key: 1 };
Nov 01 04:17:04.461 INFO kablam!     |         ----^^^^^^
Nov 01 04:17:04.461 INFO kablam!     |         |
Nov 01 04:17:04.461 INFO kablam!     |         help: remove this `mut`
Nov 01 04:17:04.461 INFO kablam! 
Nov 01 04:17:04.461 INFO kablam! warning: field is never used: `key`
Nov 01 04:17:04.461 INFO kablam!  --> src/main.rs:2:3
Nov 01 04:17:04.461 INFO kablam!   |
Nov 01 04:17:04.461 INFO kablam! 2 |   key: i32,
Nov 01 04:17:04.461 INFO kablam!   |   ^^^^^^^^
Nov 01 04:17:04.461 INFO kablam!   |
Nov 01 04:17:04.461 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 01 04:17:04.461 INFO kablam! 
Nov 01 04:17:04.461 INFO kablam! warning: function is never used: `taking_mutable_sample`
Nov 01 04:17:04.461 INFO kablam!   --> src/main.rs:11:1
Nov 01 04:17:04.461 INFO kablam!    |
Nov 01 04:17:04.461 INFO kablam! 11 | fn taking_mutable_sample(sample: &mut Sample) {}
Nov 01 04:17:04.461 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:17:04.461 INFO kablam! 
Nov 01 04:17:04.461 INFO kablam! warning: function is never used: `mutable_binding_function_calls`
Nov 01 04:17:04.461 INFO kablam!   --> src/main.rs:42:1
Nov 01 04:17:04.461 INFO kablam!    |
Nov 01 04:17:04.461 INFO kablam! 42 | fn mutable_binding_function_calls() {
Nov 01 04:17:04.461 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 04:17:04.461 INFO kablam! 
Nov 01 04:17:04.500 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
Nov 01 04:17:04.500 INFO kablam! su: No module specific data is present
Nov 01 04:17:05.544 INFO running `"docker" "rm" "-f" "2bd3651ef8c528a582645e97c11d1f9b05c9513393f9f4e1c7aa192320149dbc"`
Nov 01 04:17:05.941 INFO blam! 2bd3651ef8c528a582645e97c11d1f9b05c9513393f9f4e1c7aa192320149dbc