Dec 05 22:00:55.299 INFO testing hardvain/rust-practice against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 05 22:00:55.299 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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 05 22:00:55.540 INFO [stdout] 4b4ba3a2260c38f5fd03b24cdb8363cfd9e9dbd87a19d3d5a903c34398682043
Dec 05 22:00:55.547 INFO running `"docker" "start" "-a" "4b4ba3a2260c38f5fd03b24cdb8363cfd9e9dbd87a19d3d5a903c34398682043"`
Dec 05 22:00:56.588 INFO [stderr] usermod: no changes
Dec 05 22:00:56.637 INFO [stderr]    Compiling practice v0.1.0 (/source)
Dec 05 22:00:56.953 INFO [stderr] warning: unused variable: `sample`
Dec 05 22:00:56.953 INFO [stderr]  --> src/main.rs:9:24
Dec 05 22:00:56.953 INFO [stderr]   |
Dec 05 22:00:56.953 INFO [stderr] 9 | fn taking_owned_sample(sample: Sample) {}
Dec 05 22:00:56.953 INFO [stderr]   |                        ^^^^^^ help: consider using `_sample` instead
Dec 05 22:00:56.953 INFO [stderr]   |
Dec 05 22:00:56.953 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 05 22:00:56.953 INFO [stderr] 
Dec 05 22:00:56.953 INFO [stderr] warning: unused variable: `sample`
Dec 05 22:00:56.953 INFO [stderr]   --> src/main.rs:10:25
Dec 05 22:00:56.953 INFO [stderr]    |
Dec 05 22:00:56.953 INFO [stderr] 10 | fn taking_shared_sample(sample: &Sample) {}
Dec 05 22:00:56.953 INFO [stderr]    |                         ^^^^^^ help: consider using `_sample` instead
Dec 05 22:00:56.953 INFO [stderr] 
Dec 05 22:00:56.953 INFO [stderr] warning: unused variable: `sample`
Dec 05 22:00:56.953 INFO [stderr]   --> src/main.rs:11:26
Dec 05 22:00:56.953 INFO [stderr]    |
Dec 05 22:00:56.953 INFO [stderr] 11 | fn taking_mutable_sample(sample: &mut Sample) {}
Dec 05 22:00:56.953 INFO [stderr]    |                          ^^^^^^ help: consider using `_sample` instead
Dec 05 22:00:56.953 INFO [stderr] 
Dec 05 22:00:56.953 INFO [stderr] warning: unused variable: `sample`
Dec 05 22:00:56.953 INFO [stderr]   --> src/main.rs:37:9
Dec 05 22:00:56.953 INFO [stderr]    |
Dec 05 22:00:56.953 INFO [stderr] 37 |     let sample = Sample { key: 1 };
Dec 05 22:00:56.953 INFO [stderr]    |         ^^^^^^ help: consider using `_sample` instead
Dec 05 22:00:56.953 INFO [stderr] 
Dec 05 22:00:56.955 INFO [stderr] warning: variable does not need to be mutable
Dec 05 22:00:56.955 INFO [stderr]   --> src/main.rs:44:9
Dec 05 22:00:56.955 INFO [stderr]    |
Dec 05 22:00:56.955 INFO [stderr] 44 |     let mut sample = Sample { key: 1 };
Dec 05 22:00:56.955 INFO [stderr]    |         ----^^^^^^
Dec 05 22:00:56.955 INFO [stderr]    |         |
Dec 05 22:00:56.955 INFO [stderr]    |         help: remove this `mut`
Dec 05 22:00:56.955 INFO [stderr]    |
Dec 05 22:00:56.955 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 22:00:56.955 INFO [stderr] 
Dec 05 22:00:56.955 INFO [stderr] warning: variable does not need to be mutable
Dec 05 22:00:56.955 INFO [stderr]   --> src/main.rs:60:9
Dec 05 22:00:56.955 INFO [stderr]    |
Dec 05 22:00:56.955 INFO [stderr] 60 |     let mut sample = Sample { key: 1 };
Dec 05 22:00:56.955 INFO [stderr]    |         ----^^^^^^
Dec 05 22:00:56.955 INFO [stderr]    |         |
Dec 05 22:00:56.955 INFO [stderr]    |         help: remove this `mut`
Dec 05 22:00:56.955 INFO [stderr] 
Dec 05 22:00:56.956 INFO [stderr] warning: variable does not need to be mutable
Dec 05 22:00:56.956 INFO [stderr]    --> src/main.rs:113:9
Dec 05 22:00:56.956 INFO [stderr]     |
Dec 05 22:00:56.956 INFO [stderr] 113 |     let mut sample = Sample { key: 1 };
Dec 05 22:00:56.956 INFO [stderr]     |         ----^^^^^^
Dec 05 22:00:56.956 INFO [stderr]     |         |
Dec 05 22:00:56.956 INFO [stderr]     |         help: remove this `mut`
Dec 05 22:00:56.956 INFO [stderr] 
Dec 05 22:00:56.956 INFO [stderr] warning: variable does not need to be mutable
Dec 05 22:00:56.956 INFO [stderr]    --> src/main.rs:121:9
Dec 05 22:00:56.956 INFO [stderr]     |
Dec 05 22:00:56.956 INFO [stderr] 121 |     let mut sample = Sample { key: 1 };
Dec 05 22:00:56.956 INFO [stderr]     |         ----^^^^^^
Dec 05 22:00:56.956 INFO [stderr]     |         |
Dec 05 22:00:56.956 INFO [stderr]     |         help: remove this `mut`
Dec 05 22:00:56.956 INFO [stderr] 
Dec 05 22:00:56.956 INFO [stderr] warning: variable does not need to be mutable
Dec 05 22:00:56.956 INFO [stderr]    --> src/main.rs:130:9
Dec 05 22:00:56.956 INFO [stderr]     |
Dec 05 22:00:56.956 INFO [stderr] 130 |     let mut sample = Sample { key: 1 };
Dec 05 22:00:56.956 INFO [stderr]     |         ----^^^^^^
Dec 05 22:00:56.956 INFO [stderr]     |         |
Dec 05 22:00:56.956 INFO [stderr]     |         help: remove this `mut`
Dec 05 22:00:56.956 INFO [stderr] 
Dec 05 22:00:56.956 INFO [stderr] warning: variable does not need to be mutable
Dec 05 22:00:56.956 INFO [stderr]    --> src/main.rs:137:9
Dec 05 22:00:56.956 INFO [stderr]     |
Dec 05 22:00:56.956 INFO [stderr] 137 |     let mut sample = Sample { key: 1 };
Dec 05 22:00:56.956 INFO [stderr]     |         ----^^^^^^
Dec 05 22:00:56.956 INFO [stderr]     |         |
Dec 05 22:00:56.956 INFO [stderr]     |         help: remove this `mut`
Dec 05 22:00:56.956 INFO [stderr] 
Dec 05 22:00:56.956 INFO [stderr] warning: field is never used: `key`
Dec 05 22:00:56.956 INFO [stderr]  --> src/main.rs:2:3
Dec 05 22:00:56.956 INFO [stderr]   |
Dec 05 22:00:56.956 INFO [stderr] 2 |   key: i32,
Dec 05 22:00:56.957 INFO [stderr]   |   ^^^^^^^^
Dec 05 22:00:56.957 INFO [stderr]   |
Dec 05 22:00:56.957 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 22:00:56.957 INFO [stderr] 
Dec 05 22:00:56.957 INFO [stderr] warning: function is never used: `taking_mutable_sample`
Dec 05 22:00:56.957 INFO [stderr]   --> src/main.rs:11:1
Dec 05 22:00:56.957 INFO [stderr]    |
Dec 05 22:00:56.957 INFO [stderr] 11 | fn taking_mutable_sample(sample: &mut Sample) {}
Dec 05 22:00:56.957 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 22:00:56.957 INFO [stderr] 
Dec 05 22:00:56.957 INFO [stderr] warning: function is never used: `mutable_binding_function_calls`
Dec 05 22:00:56.957 INFO [stderr]   --> src/main.rs:42:1
Dec 05 22:00:56.957 INFO [stderr]    |
Dec 05 22:00:56.957 INFO [stderr] 42 | fn mutable_binding_function_calls() {
Dec 05 22:00:56.957 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 22:00:56.957 INFO [stderr] 
Dec 05 22:00:57.212 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
Dec 05 22:00:57.220 INFO [stderr] su: No module specific data is present
Dec 05 22:00:57.960 INFO running `"docker" "inspect" "4b4ba3a2260c38f5fd03b24cdb8363cfd9e9dbd87a19d3d5a903c34398682043"`
Dec 05 22:00:58.158 INFO running `"docker" "rm" "-f" "4b4ba3a2260c38f5fd03b24cdb8363cfd9e9dbd87a19d3d5a903c34398682043"`
Dec 05 22:00:58.331 INFO [stdout] 4b4ba3a2260c38f5fd03b24cdb8363cfd9e9dbd87a19d3d5a903c34398682043
Dec 05 22:00:58.334 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-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 05 22:00:58.680 INFO [stdout] 13705da51ca06b584c0afac3fe9acb8d2fc3d8e0c976f31f9541bed924fe893d
Dec 05 22:00:58.682 INFO running `"docker" "start" "-a" "13705da51ca06b584c0afac3fe9acb8d2fc3d8e0c976f31f9541bed924fe893d"`
Dec 05 22:00:59.697 INFO [stderr] usermod: no changes
Dec 05 22:00:59.732 INFO [stderr]    Compiling practice v0.1.0 (/source)
Dec 05 22:01:00.130 INFO [stderr] warning: unused variable: `sample`
Dec 05 22:01:00.130 INFO [stderr]  --> src/main.rs:9:24
Dec 05 22:01:00.130 INFO [stderr]   |
Dec 05 22:01:00.130 INFO [stderr] 9 | fn taking_owned_sample(sample: Sample) {}
Dec 05 22:01:00.130 INFO [stderr]   |                        ^^^^^^ help: consider using `_sample` instead
Dec 05 22:01:00.130 INFO [stderr]   |
Dec 05 22:01:00.130 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 05 22:01:00.130 INFO [stderr] 
Dec 05 22:01:00.130 INFO [stderr] warning: unused variable: `sample`
Dec 05 22:01:00.130 INFO [stderr]   --> src/main.rs:10:25
Dec 05 22:01:00.130 INFO [stderr]    |
Dec 05 22:01:00.130 INFO [stderr] 10 | fn taking_shared_sample(sample: &Sample) {}
Dec 05 22:01:00.130 INFO [stderr]    |                         ^^^^^^ help: consider using `_sample` instead
Dec 05 22:01:00.130 INFO [stderr] 
Dec 05 22:01:00.130 INFO [stderr] warning: unused variable: `sample`
Dec 05 22:01:00.130 INFO [stderr]   --> src/main.rs:11:26
Dec 05 22:01:00.130 INFO [stderr]    |
Dec 05 22:01:00.130 INFO [stderr] 11 | fn taking_mutable_sample(sample: &mut Sample) {}
Dec 05 22:01:00.130 INFO [stderr]    |                          ^^^^^^ help: consider using `_sample` instead
Dec 05 22:01:00.130 INFO [stderr] 
Dec 05 22:01:00.131 INFO [stderr] warning: unused variable: `sample`
Dec 05 22:01:00.131 INFO [stderr]   --> src/main.rs:37:9
Dec 05 22:01:00.131 INFO [stderr]    |
Dec 05 22:01:00.131 INFO [stderr] 37 |     let sample = Sample { key: 1 };
Dec 05 22:01:00.131 INFO [stderr]    |         ^^^^^^ help: consider using `_sample` instead
Dec 05 22:01:00.131 INFO [stderr] 
Dec 05 22:01:00.136 INFO [stderr] warning: variable does not need to be mutable
Dec 05 22:01:00.136 INFO [stderr]   --> src/main.rs:44:9
Dec 05 22:01:00.136 INFO [stderr]    |
Dec 05 22:01:00.136 INFO [stderr] 44 |     let mut sample = Sample { key: 1 };
Dec 05 22:01:00.136 INFO [stderr]    |         ----^^^^^^
Dec 05 22:01:00.136 INFO [stderr]    |         |
Dec 05 22:01:00.136 INFO [stderr]    |         help: remove this `mut`
Dec 05 22:01:00.136 INFO [stderr]    |
Dec 05 22:01:00.136 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 22:01:00.136 INFO [stderr] 
Dec 05 22:01:00.137 INFO [stderr] warning: variable does not need to be mutable
Dec 05 22:01:00.137 INFO [stderr]   --> src/main.rs:60:9
Dec 05 22:01:00.137 INFO [stderr]    |
Dec 05 22:01:00.137 INFO [stderr] 60 |     let mut sample = Sample { key: 1 };
Dec 05 22:01:00.137 INFO [stderr]    |         ----^^^^^^
Dec 05 22:01:00.137 INFO [stderr]    |         |
Dec 05 22:01:00.137 INFO [stderr]    |         help: remove this `mut`
Dec 05 22:01:00.137 INFO [stderr] 
Dec 05 22:01:00.137 INFO [stderr] warning: variable does not need to be mutable
Dec 05 22:01:00.137 INFO [stderr]    --> src/main.rs:113:9
Dec 05 22:01:00.137 INFO [stderr]     |
Dec 05 22:01:00.137 INFO [stderr] 113 |     let mut sample = Sample { key: 1 };
Dec 05 22:01:00.137 INFO [stderr]     |         ----^^^^^^
Dec 05 22:01:00.137 INFO [stderr]     |         |
Dec 05 22:01:00.137 INFO [stderr]     |         help: remove this `mut`
Dec 05 22:01:00.137 INFO [stderr] 
Dec 05 22:01:00.137 INFO [stderr] warning: variable does not need to be mutable
Dec 05 22:01:00.137 INFO [stderr]    --> src/main.rs:121:9
Dec 05 22:01:00.137 INFO [stderr]     |
Dec 05 22:01:00.137 INFO [stderr] 121 |     let mut sample = Sample { key: 1 };
Dec 05 22:01:00.137 INFO [stderr]     |         ----^^^^^^
Dec 05 22:01:00.137 INFO [stderr]     |         |
Dec 05 22:01:00.137 INFO [stderr]     |         help: remove this `mut`
Dec 05 22:01:00.137 INFO [stderr] 
Dec 05 22:01:00.137 INFO [stderr] warning: variable does not need to be mutable
Dec 05 22:01:00.137 INFO [stderr]    --> src/main.rs:130:9
Dec 05 22:01:00.137 INFO [stderr]     |
Dec 05 22:01:00.137 INFO [stderr] 130 |     let mut sample = Sample { key: 1 };
Dec 05 22:01:00.137 INFO [stderr]     |         ----^^^^^^
Dec 05 22:01:00.137 INFO [stderr]     |         |
Dec 05 22:01:00.137 INFO [stderr]     |         help: remove this `mut`
Dec 05 22:01:00.137 INFO [stderr] 
Dec 05 22:01:00.137 INFO [stderr] warning: variable does not need to be mutable
Dec 05 22:01:00.137 INFO [stderr]    --> src/main.rs:137:9
Dec 05 22:01:00.137 INFO [stderr]     |
Dec 05 22:01:00.137 INFO [stderr] 137 |     let mut sample = Sample { key: 1 };
Dec 05 22:01:00.137 INFO [stderr]     |         ----^^^^^^
Dec 05 22:01:00.137 INFO [stderr]     |         |
Dec 05 22:01:00.137 INFO [stderr]     |         help: remove this `mut`
Dec 05 22:01:00.137 INFO [stderr] 
Dec 05 22:01:00.137 INFO [stderr] warning: field is never used: `key`
Dec 05 22:01:00.137 INFO [stderr]  --> src/main.rs:2:3
Dec 05 22:01:00.137 INFO [stderr]   |
Dec 05 22:01:00.137 INFO [stderr] 2 |   key: i32,
Dec 05 22:01:00.137 INFO [stderr]   |   ^^^^^^^^
Dec 05 22:01:00.137 INFO [stderr]   |
Dec 05 22:01:00.137 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 22:01:00.137 INFO [stderr] 
Dec 05 22:01:00.137 INFO [stderr] warning: function is never used: `taking_mutable_sample`
Dec 05 22:01:00.137 INFO [stderr]   --> src/main.rs:11:1
Dec 05 22:01:00.137 INFO [stderr]    |
Dec 05 22:01:00.137 INFO [stderr] 11 | fn taking_mutable_sample(sample: &mut Sample) {}
Dec 05 22:01:00.137 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 22:01:00.137 INFO [stderr] 
Dec 05 22:01:00.137 INFO [stderr] warning: function is never used: `mutable_binding_function_calls`
Dec 05 22:01:00.137 INFO [stderr]   --> src/main.rs:42:1
Dec 05 22:01:00.137 INFO [stderr]    |
Dec 05 22:01:00.137 INFO [stderr] 42 | fn mutable_binding_function_calls() {
Dec 05 22:01:00.137 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 22:01:00.137 INFO [stderr] 
Dec 05 22:01:00.432 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
Dec 05 22:01:00.435 INFO [stderr] su: No module specific data is present
Dec 05 22:01:01.251 INFO running `"docker" "inspect" "13705da51ca06b584c0afac3fe9acb8d2fc3d8e0c976f31f9541bed924fe893d"`
Dec 05 22:01:01.522 INFO running `"docker" "rm" "-f" "13705da51ca06b584c0afac3fe9acb8d2fc3d8e0c976f31f9541bed924fe893d"`
Dec 05 22:01:01.752 INFO [stdout] 13705da51ca06b584c0afac3fe9acb8d2fc3d8e0c976f31f9541bed924fe893d
Dec 05 22:01:01.754 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-2/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-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 05 22:01:02.226 INFO [stdout] 131c296f1a961ea69b96078e491a86c05bb808da0cff3951fb3463d1a679434c
Dec 05 22:01:02.230 INFO running `"docker" "start" "-a" "131c296f1a961ea69b96078e491a86c05bb808da0cff3951fb3463d1a679434c"`
Dec 05 22:01:03.310 INFO [stderr] usermod: no changes
Dec 05 22:01:03.357 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 05 22:01:03.357 INFO [stdout] 
Dec 05 22:01:03.357 INFO [stderr]      Running /target/debug/deps/practice-b18bf452be2753e2
Dec 05 22:01:03.357 INFO [stdout] running 0 tests
Dec 05 22:01:03.357 INFO [stderr] su: No module specific data is present
Dec 05 22:01:03.357 INFO [stdout] 
Dec 05 22:01:03.357 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 22:01:03.357 INFO [stdout] 
Dec 05 22:01:04.065 INFO running `"docker" "inspect" "131c296f1a961ea69b96078e491a86c05bb808da0cff3951fb3463d1a679434c"`
Dec 05 22:01:04.175 INFO running `"docker" "rm" "-f" "131c296f1a961ea69b96078e491a86c05bb808da0cff3951fb3463d1a679434c"`
Dec 05 22:01:04.272 INFO [stdout] 131c296f1a961ea69b96078e491a86c05bb808da0cff3951fb3463d1a679434c