Dec 01 16:05:23.981 INFO testing hardvain/rust-practice against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 01 16:05:23.981 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 16:05:24.426 INFO [stdout] fd56728381e83009c165561ea818b5d5e216db44e2e8b30362f0dce83e68cdf6
Dec 01 16:05:24.428 INFO running `"docker" "start" "-a" "fd56728381e83009c165561ea818b5d5e216db44e2e8b30362f0dce83e68cdf6"`
Dec 01 16:05:25.351 INFO [stderr] usermod: no changes
Dec 01 16:05:25.423 INFO [stderr]    Compiling practice v0.1.0 (/source)
Dec 01 16:05:25.935 INFO [stderr] warning: unused variable: `sample`
Dec 01 16:05:25.935 INFO [stderr]  --> src/main.rs:9:24
Dec 01 16:05:25.935 INFO [stderr]   |
Dec 01 16:05:25.935 INFO [stderr] 9 | fn taking_owned_sample(sample: Sample) {}
Dec 01 16:05:25.935 INFO [stderr]   |                        ^^^^^^ help: consider using `_sample` instead
Dec 01 16:05:25.935 INFO [stderr]   |
Dec 01 16:05:25.935 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 01 16:05:25.935 INFO [stderr] 
Dec 01 16:05:25.935 INFO [stderr] warning: unused variable: `sample`
Dec 01 16:05:25.935 INFO [stderr]   --> src/main.rs:10:25
Dec 01 16:05:25.935 INFO [stderr]    |
Dec 01 16:05:25.935 INFO [stderr] 10 | fn taking_shared_sample(sample: &Sample) {}
Dec 01 16:05:25.935 INFO [stderr]    |                         ^^^^^^ help: consider using `_sample` instead
Dec 01 16:05:25.935 INFO [stderr] 
Dec 01 16:05:25.935 INFO [stderr] warning: unused variable: `sample`
Dec 01 16:05:25.935 INFO [stderr]   --> src/main.rs:11:26
Dec 01 16:05:25.935 INFO [stderr]    |
Dec 01 16:05:25.935 INFO [stderr] 11 | fn taking_mutable_sample(sample: &mut Sample) {}
Dec 01 16:05:25.935 INFO [stderr]    |                          ^^^^^^ help: consider using `_sample` instead
Dec 01 16:05:25.935 INFO [stderr] 
Dec 01 16:05:25.935 INFO [stderr] warning: unused variable: `sample`
Dec 01 16:05:25.935 INFO [stderr]   --> src/main.rs:37:9
Dec 01 16:05:25.935 INFO [stderr]    |
Dec 01 16:05:25.935 INFO [stderr] 37 |     let sample = Sample { key: 1 };
Dec 01 16:05:25.935 INFO [stderr]    |         ^^^^^^ help: consider using `_sample` instead
Dec 01 16:05:25.935 INFO [stderr] 
Dec 01 16:05:25.940 INFO [stderr] warning: variable does not need to be mutable
Dec 01 16:05:25.940 INFO [stderr]   --> src/main.rs:44:9
Dec 01 16:05:25.940 INFO [stderr]    |
Dec 01 16:05:25.940 INFO [stderr] 44 |     let mut sample = Sample { key: 1 };
Dec 01 16:05:25.940 INFO [stderr]    |         ----^^^^^^
Dec 01 16:05:25.940 INFO [stderr]    |         |
Dec 01 16:05:25.940 INFO [stderr]    |         help: remove this `mut`
Dec 01 16:05:25.940 INFO [stderr]    |
Dec 01 16:05:25.940 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 01 16:05:25.940 INFO [stderr] 
Dec 01 16:05:25.940 INFO [stderr] warning: variable does not need to be mutable
Dec 01 16:05:25.940 INFO [stderr]   --> src/main.rs:60:9
Dec 01 16:05:25.940 INFO [stderr]    |
Dec 01 16:05:25.940 INFO [stderr] 60 |     let mut sample = Sample { key: 1 };
Dec 01 16:05:25.940 INFO [stderr]    |         ----^^^^^^
Dec 01 16:05:25.940 INFO [stderr]    |         |
Dec 01 16:05:25.940 INFO [stderr]    |         help: remove this `mut`
Dec 01 16:05:25.940 INFO [stderr] 
Dec 01 16:05:25.947 INFO [stderr] warning: variable does not need to be mutable
Dec 01 16:05:25.947 INFO [stderr]    --> src/main.rs:113:9
Dec 01 16:05:25.947 INFO [stderr]     |
Dec 01 16:05:25.947 INFO [stderr] 113 |     let mut sample = Sample { key: 1 };
Dec 01 16:05:25.947 INFO [stderr]     |         ----^^^^^^
Dec 01 16:05:25.947 INFO [stderr]     |         |
Dec 01 16:05:25.947 INFO [stderr]     |         help: remove this `mut`
Dec 01 16:05:25.947 INFO [stderr] 
Dec 01 16:05:25.947 INFO [stderr] warning: variable does not need to be mutable
Dec 01 16:05:25.947 INFO [stderr]    --> src/main.rs:121:9
Dec 01 16:05:25.947 INFO [stderr]     |
Dec 01 16:05:25.947 INFO [stderr] 121 |     let mut sample = Sample { key: 1 };
Dec 01 16:05:25.947 INFO [stderr]     |         ----^^^^^^
Dec 01 16:05:25.947 INFO [stderr]     |         |
Dec 01 16:05:25.947 INFO [stderr]     |         help: remove this `mut`
Dec 01 16:05:25.947 INFO [stderr] 
Dec 01 16:05:25.947 INFO [stderr] warning: variable does not need to be mutable
Dec 01 16:05:25.947 INFO [stderr]    --> src/main.rs:130:9
Dec 01 16:05:25.947 INFO [stderr]     |
Dec 01 16:05:25.947 INFO [stderr] 130 |     let mut sample = Sample { key: 1 };
Dec 01 16:05:25.947 INFO [stderr]     |         ----^^^^^^
Dec 01 16:05:25.947 INFO [stderr]     |         |
Dec 01 16:05:25.947 INFO [stderr]     |         help: remove this `mut`
Dec 01 16:05:25.947 INFO [stderr] 
Dec 01 16:05:25.947 INFO [stderr] warning: variable does not need to be mutable
Dec 01 16:05:25.947 INFO [stderr]    --> src/main.rs:137:9
Dec 01 16:05:25.947 INFO [stderr]     |
Dec 01 16:05:25.947 INFO [stderr] 137 |     let mut sample = Sample { key: 1 };
Dec 01 16:05:25.947 INFO [stderr]     |         ----^^^^^^
Dec 01 16:05:25.947 INFO [stderr]     |         |
Dec 01 16:05:25.947 INFO [stderr]     |         help: remove this `mut`
Dec 01 16:05:25.947 INFO [stderr] 
Dec 01 16:05:25.947 INFO [stderr] warning: field is never used: `key`
Dec 01 16:05:25.947 INFO [stderr]  --> src/main.rs:2:3
Dec 01 16:05:25.947 INFO [stderr]   |
Dec 01 16:05:25.947 INFO [stderr] 2 |   key: i32,
Dec 01 16:05:25.947 INFO [stderr]   |   ^^^^^^^^
Dec 01 16:05:25.947 INFO [stderr]   |
Dec 01 16:05:25.947 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 01 16:05:25.947 INFO [stderr] 
Dec 01 16:05:25.947 INFO [stderr] warning: function is never used: `taking_mutable_sample`
Dec 01 16:05:25.947 INFO [stderr]   --> src/main.rs:11:1
Dec 01 16:05:25.947 INFO [stderr]    |
Dec 01 16:05:25.947 INFO [stderr] 11 | fn taking_mutable_sample(sample: &mut Sample) {}
Dec 01 16:05:25.947 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 16:05:25.947 INFO [stderr] 
Dec 01 16:05:25.947 INFO [stderr] warning: function is never used: `mutable_binding_function_calls`
Dec 01 16:05:25.947 INFO [stderr]   --> src/main.rs:42:1
Dec 01 16:05:25.947 INFO [stderr]    |
Dec 01 16:05:25.947 INFO [stderr] 42 | fn mutable_binding_function_calls() {
Dec 01 16:05:25.948 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 16:05:25.948 INFO [stderr] 
Dec 01 16:05:26.351 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
Dec 01 16:05:26.353 INFO [stderr] su: No module specific data is present
Dec 01 16:05:27.703 INFO running `"docker" "inspect" "fd56728381e83009c165561ea818b5d5e216db44e2e8b30362f0dce83e68cdf6"`
Dec 01 16:05:27.971 INFO running `"docker" "rm" "-f" "fd56728381e83009c165561ea818b5d5e216db44e2e8b30362f0dce83e68cdf6"`
Dec 01 16:05:28.313 INFO [stdout] fd56728381e83009c165561ea818b5d5e216db44e2e8b30362f0dce83e68cdf6
Dec 01 16:05:28.317 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 16:05:28.759 INFO [stdout] 917de61153d5f3fda45b54064cd45769f8b3d98a01a3f9166f39594a93a9f19c
Dec 01 16:05:28.759 INFO running `"docker" "start" "-a" "917de61153d5f3fda45b54064cd45769f8b3d98a01a3f9166f39594a93a9f19c"`
Dec 01 16:05:29.916 INFO [stderr] usermod: no changes
Dec 01 16:05:30.019 INFO [stderr]    Compiling practice v0.1.0 (/source)
Dec 01 16:05:30.523 INFO [stderr] warning: unused variable: `sample`
Dec 01 16:05:30.523 INFO [stderr]  --> src/main.rs:9:24
Dec 01 16:05:30.523 INFO [stderr]   |
Dec 01 16:05:30.523 INFO [stderr] 9 | fn taking_owned_sample(sample: Sample) {}
Dec 01 16:05:30.523 INFO [stderr]   |                        ^^^^^^ help: consider using `_sample` instead
Dec 01 16:05:30.523 INFO [stderr]   |
Dec 01 16:05:30.523 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 01 16:05:30.523 INFO [stderr] 
Dec 01 16:05:30.523 INFO [stderr] warning: unused variable: `sample`
Dec 01 16:05:30.523 INFO [stderr]   --> src/main.rs:10:25
Dec 01 16:05:30.523 INFO [stderr]    |
Dec 01 16:05:30.523 INFO [stderr] 10 | fn taking_shared_sample(sample: &Sample) {}
Dec 01 16:05:30.523 INFO [stderr]    |                         ^^^^^^ help: consider using `_sample` instead
Dec 01 16:05:30.523 INFO [stderr] 
Dec 01 16:05:30.523 INFO [stderr] warning: unused variable: `sample`
Dec 01 16:05:30.523 INFO [stderr]   --> src/main.rs:11:26
Dec 01 16:05:30.523 INFO [stderr]    |
Dec 01 16:05:30.523 INFO [stderr] 11 | fn taking_mutable_sample(sample: &mut Sample) {}
Dec 01 16:05:30.523 INFO [stderr]    |                          ^^^^^^ help: consider using `_sample` instead
Dec 01 16:05:30.523 INFO [stderr] 
Dec 01 16:05:30.523 INFO [stderr] warning: unused variable: `sample`
Dec 01 16:05:30.523 INFO [stderr]   --> src/main.rs:37:9
Dec 01 16:05:30.523 INFO [stderr]    |
Dec 01 16:05:30.523 INFO [stderr] 37 |     let sample = Sample { key: 1 };
Dec 01 16:05:30.523 INFO [stderr]    |         ^^^^^^ help: consider using `_sample` instead
Dec 01 16:05:30.523 INFO [stderr] 
Dec 01 16:05:30.523 INFO [stderr] warning: variable does not need to be mutable
Dec 01 16:05:30.523 INFO [stderr]   --> src/main.rs:44:9
Dec 01 16:05:30.523 INFO [stderr]    |
Dec 01 16:05:30.523 INFO [stderr] 44 |     let mut sample = Sample { key: 1 };
Dec 01 16:05:30.523 INFO [stderr]    |         ----^^^^^^
Dec 01 16:05:30.523 INFO [stderr]    |         |
Dec 01 16:05:30.523 INFO [stderr]    |         help: remove this `mut`
Dec 01 16:05:30.523 INFO [stderr]    |
Dec 01 16:05:30.523 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 01 16:05:30.523 INFO [stderr] 
Dec 01 16:05:30.523 INFO [stderr] warning: variable does not need to be mutable
Dec 01 16:05:30.523 INFO [stderr]   --> src/main.rs:60:9
Dec 01 16:05:30.523 INFO [stderr]    |
Dec 01 16:05:30.523 INFO [stderr] 60 |     let mut sample = Sample { key: 1 };
Dec 01 16:05:30.523 INFO [stderr]    |         ----^^^^^^
Dec 01 16:05:30.523 INFO [stderr]    |         |
Dec 01 16:05:30.523 INFO [stderr]    |         help: remove this `mut`
Dec 01 16:05:30.523 INFO [stderr] 
Dec 01 16:05:30.523 INFO [stderr] warning: variable does not need to be mutable
Dec 01 16:05:30.523 INFO [stderr]    --> src/main.rs:113:9
Dec 01 16:05:30.523 INFO [stderr]     |
Dec 01 16:05:30.523 INFO [stderr] 113 |     let mut sample = Sample { key: 1 };
Dec 01 16:05:30.523 INFO [stderr]     |         ----^^^^^^
Dec 01 16:05:30.523 INFO [stderr]     |         |
Dec 01 16:05:30.523 INFO [stderr]     |         help: remove this `mut`
Dec 01 16:05:30.523 INFO [stderr] 
Dec 01 16:05:30.523 INFO [stderr] warning: variable does not need to be mutable
Dec 01 16:05:30.523 INFO [stderr]    --> src/main.rs:121:9
Dec 01 16:05:30.523 INFO [stderr]     |
Dec 01 16:05:30.523 INFO [stderr] 121 |     let mut sample = Sample { key: 1 };
Dec 01 16:05:30.523 INFO [stderr]     |         ----^^^^^^
Dec 01 16:05:30.523 INFO [stderr]     |         |
Dec 01 16:05:30.523 INFO [stderr]     |         help: remove this `mut`
Dec 01 16:05:30.523 INFO [stderr] 
Dec 01 16:05:30.534 INFO [stderr] warning: variable does not need to be mutable
Dec 01 16:05:30.535 INFO [stderr]    --> src/main.rs:130:9
Dec 01 16:05:30.535 INFO [stderr]     |
Dec 01 16:05:30.535 INFO [stderr] 130 |     let mut sample = Sample { key: 1 };
Dec 01 16:05:30.535 INFO [stderr]     |         ----^^^^^^
Dec 01 16:05:30.535 INFO [stderr]     |         |
Dec 01 16:05:30.535 INFO [stderr]     |         help: remove this `mut`
Dec 01 16:05:30.535 INFO [stderr] 
Dec 01 16:05:30.535 INFO [stderr] warning: variable does not need to be mutable
Dec 01 16:05:30.535 INFO [stderr]    --> src/main.rs:137:9
Dec 01 16:05:30.535 INFO [stderr]     |
Dec 01 16:05:30.535 INFO [stderr] 137 |     let mut sample = Sample { key: 1 };
Dec 01 16:05:30.535 INFO [stderr]     |         ----^^^^^^
Dec 01 16:05:30.535 INFO [stderr]     |         |
Dec 01 16:05:30.535 INFO [stderr]     |         help: remove this `mut`
Dec 01 16:05:30.535 INFO [stderr] 
Dec 01 16:05:30.535 INFO [stderr] warning: field is never used: `key`
Dec 01 16:05:30.535 INFO [stderr]  --> src/main.rs:2:3
Dec 01 16:05:30.535 INFO [stderr]   |
Dec 01 16:05:30.535 INFO [stderr] 2 |   key: i32,
Dec 01 16:05:30.535 INFO [stderr]   |   ^^^^^^^^
Dec 01 16:05:30.535 INFO [stderr]   |
Dec 01 16:05:30.535 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 01 16:05:30.535 INFO [stderr] 
Dec 01 16:05:30.535 INFO [stderr] warning: function is never used: `taking_mutable_sample`
Dec 01 16:05:30.535 INFO [stderr]   --> src/main.rs:11:1
Dec 01 16:05:30.535 INFO [stderr]    |
Dec 01 16:05:30.535 INFO [stderr] 11 | fn taking_mutable_sample(sample: &mut Sample) {}
Dec 01 16:05:30.535 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 16:05:30.535 INFO [stderr] 
Dec 01 16:05:30.535 INFO [stderr] warning: function is never used: `mutable_binding_function_calls`
Dec 01 16:05:30.535 INFO [stderr]   --> src/main.rs:42:1
Dec 01 16:05:30.535 INFO [stderr]    |
Dec 01 16:05:30.535 INFO [stderr] 42 | fn mutable_binding_function_calls() {
Dec 01 16:05:30.535 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 16:05:30.535 INFO [stderr] 
Dec 01 16:05:31.050 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
Dec 01 16:05:31.052 INFO [stderr] su: No module specific data is present
Dec 01 16:05:31.708 INFO running `"docker" "inspect" "917de61153d5f3fda45b54064cd45769f8b3d98a01a3f9166f39594a93a9f19c"`
Dec 01 16:05:32.048 INFO running `"docker" "rm" "-f" "917de61153d5f3fda45b54064cd45769f8b3d98a01a3f9166f39594a93a9f19c"`
Dec 01 16:05:32.329 INFO [stdout] 917de61153d5f3fda45b54064cd45769f8b3d98a01a3f9166f39594a93a9f19c
Dec 01 16:05:32.335 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 16:05:32.694 INFO [stdout] 0f116eeb91188068e13aa1e4ffffb210d54f4d88c3f20edcef2b001c1937ea71
Dec 01 16:05:32.703 INFO running `"docker" "start" "-a" "0f116eeb91188068e13aa1e4ffffb210d54f4d88c3f20edcef2b001c1937ea71"`
Dec 01 16:05:33.802 INFO [stderr] usermod: no changes
Dec 01 16:05:33.856 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 01 16:05:33.867 INFO [stderr]      Running /target/debug/deps/practice-fdfeb529c5197b0d
Dec 01 16:05:33.874 INFO [stdout] 
Dec 01 16:05:33.874 INFO [stdout] running 0 tests
Dec 01 16:05:33.875 INFO [stdout] 
Dec 01 16:05:33.875 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 01 16:05:33.875 INFO [stdout] 
Dec 01 16:05:33.879 INFO [stderr] su: No module specific data is present
Dec 01 16:05:34.511 INFO running `"docker" "inspect" "0f116eeb91188068e13aa1e4ffffb210d54f4d88c3f20edcef2b001c1937ea71"`
Dec 01 16:05:34.771 INFO running `"docker" "rm" "-f" "0f116eeb91188068e13aa1e4ffffb210d54f4d88c3f20edcef2b001c1937ea71"`
Dec 01 16:05:34.967 INFO [stdout] 0f116eeb91188068e13aa1e4ffffb210d54f4d88c3f20edcef2b001c1937ea71
