Nov 17 01:34:14.460 INFO testing hardvain/rust-practice against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 17 01:34:14.460 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-5/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 01:34:14.997 INFO [stdout] bcdca1b904c4601a4fb22e7d90b07297ab98115c51bc02b07f19b5e13a6aaed7
Nov 17 01:34:14.998 INFO running `"docker" "start" "-a" "bcdca1b904c4601a4fb22e7d90b07297ab98115c51bc02b07f19b5e13a6aaed7"`
Nov 17 01:34:16.775 INFO [stderr] usermod: no changes
Nov 17 01:34:16.832 INFO [stderr]    Compiling practice v0.1.0 (/source)
Nov 17 01:34:17.099 INFO [stderr] warning: unused variable: `sample`
Nov 17 01:34:17.099 INFO [stderr]  --> src/main.rs:9:24
Nov 17 01:34:17.099 INFO [stderr]   |
Nov 17 01:34:17.099 INFO [stderr] 9 | fn taking_owned_sample(sample: Sample) {}
Nov 17 01:34:17.099 INFO [stderr]   |                        ^^^^^^ help: consider using `_sample` instead
Nov 17 01:34:17.099 INFO [stderr]   |
Nov 17 01:34:17.099 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 17 01:34:17.099 INFO [stderr] 
Nov 17 01:34:17.099 INFO [stderr] warning: unused variable: `sample`
Nov 17 01:34:17.099 INFO [stderr]   --> src/main.rs:10:25
Nov 17 01:34:17.099 INFO [stderr]    |
Nov 17 01:34:17.099 INFO [stderr] 10 | fn taking_shared_sample(sample: &Sample) {}
Nov 17 01:34:17.099 INFO [stderr]    |                         ^^^^^^ help: consider using `_sample` instead
Nov 17 01:34:17.099 INFO [stderr] 
Nov 17 01:34:17.099 INFO [stderr] warning: unused variable: `sample`
Nov 17 01:34:17.099 INFO [stderr]   --> src/main.rs:11:26
Nov 17 01:34:17.099 INFO [stderr]    |
Nov 17 01:34:17.099 INFO [stderr] 11 | fn taking_mutable_sample(sample: &mut Sample) {}
Nov 17 01:34:17.099 INFO [stderr]    |                          ^^^^^^ help: consider using `_sample` instead
Nov 17 01:34:17.099 INFO [stderr] 
Nov 17 01:34:17.099 INFO [stderr] warning: unused variable: `sample`
Nov 17 01:34:17.099 INFO [stderr]   --> src/main.rs:37:9
Nov 17 01:34:17.099 INFO [stderr]    |
Nov 17 01:34:17.099 INFO [stderr] 37 |     let sample = Sample { key: 1 };
Nov 17 01:34:17.099 INFO [stderr]    |         ^^^^^^ help: consider using `_sample` instead
Nov 17 01:34:17.099 INFO [stderr] 
Nov 17 01:34:17.099 INFO [stderr] warning: variable does not need to be mutable
Nov 17 01:34:17.099 INFO [stderr]   --> src/main.rs:44:9
Nov 17 01:34:17.099 INFO [stderr]    |
Nov 17 01:34:17.099 INFO [stderr] 44 |     let mut sample = Sample { key: 1 };
Nov 17 01:34:17.099 INFO [stderr]    |         ----^^^^^^
Nov 17 01:34:17.099 INFO [stderr]    |         |
Nov 17 01:34:17.099 INFO [stderr]    |         help: remove this `mut`
Nov 17 01:34:17.099 INFO [stderr]    |
Nov 17 01:34:17.100 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 17 01:34:17.100 INFO [stderr] 
Nov 17 01:34:17.100 INFO [stderr] warning: variable does not need to be mutable
Nov 17 01:34:17.100 INFO [stderr]   --> src/main.rs:60:9
Nov 17 01:34:17.100 INFO [stderr]    |
Nov 17 01:34:17.100 INFO [stderr] 60 |     let mut sample = Sample { key: 1 };
Nov 17 01:34:17.100 INFO [stderr]    |         ----^^^^^^
Nov 17 01:34:17.100 INFO [stderr]    |         |
Nov 17 01:34:17.100 INFO [stderr]    |         help: remove this `mut`
Nov 17 01:34:17.100 INFO [stderr] 
Nov 17 01:34:17.100 INFO [stderr] warning: variable does not need to be mutable
Nov 17 01:34:17.100 INFO [stderr]    --> src/main.rs:113:9
Nov 17 01:34:17.100 INFO [stderr]     |
Nov 17 01:34:17.100 INFO [stderr] 113 |     let mut sample = Sample { key: 1 };
Nov 17 01:34:17.100 INFO [stderr]     |         ----^^^^^^
Nov 17 01:34:17.100 INFO [stderr]     |         |
Nov 17 01:34:17.100 INFO [stderr]     |         help: remove this `mut`
Nov 17 01:34:17.100 INFO [stderr] 
Nov 17 01:34:17.100 INFO [stderr] warning: variable does not need to be mutable
Nov 17 01:34:17.100 INFO [stderr]    --> src/main.rs:121:9
Nov 17 01:34:17.100 INFO [stderr]     |
Nov 17 01:34:17.100 INFO [stderr] 121 |     let mut sample = Sample { key: 1 };
Nov 17 01:34:17.100 INFO [stderr]     |         ----^^^^^^
Nov 17 01:34:17.100 INFO [stderr]     |         |
Nov 17 01:34:17.100 INFO [stderr]     |         help: remove this `mut`
Nov 17 01:34:17.100 INFO [stderr] 
Nov 17 01:34:17.100 INFO [stderr] warning: variable does not need to be mutable
Nov 17 01:34:17.100 INFO [stderr]    --> src/main.rs:130:9
Nov 17 01:34:17.100 INFO [stderr]     |
Nov 17 01:34:17.100 INFO [stderr] 130 |     let mut sample = Sample { key: 1 };
Nov 17 01:34:17.100 INFO [stderr]     |         ----^^^^^^
Nov 17 01:34:17.100 INFO [stderr]     |         |
Nov 17 01:34:17.100 INFO [stderr]     |         help: remove this `mut`
Nov 17 01:34:17.100 INFO [stderr] 
Nov 17 01:34:17.100 INFO [stderr] warning: variable does not need to be mutable
Nov 17 01:34:17.100 INFO [stderr]    --> src/main.rs:137:9
Nov 17 01:34:17.100 INFO [stderr]     |
Nov 17 01:34:17.100 INFO [stderr] 137 |     let mut sample = Sample { key: 1 };
Nov 17 01:34:17.100 INFO [stderr]     |         ----^^^^^^
Nov 17 01:34:17.100 INFO [stderr]     |         |
Nov 17 01:34:17.100 INFO [stderr]     |         help: remove this `mut`
Nov 17 01:34:17.100 INFO [stderr] 
Nov 17 01:34:17.100 INFO [stderr] warning: field is never used: `key`
Nov 17 01:34:17.100 INFO [stderr]  --> src/main.rs:2:3
Nov 17 01:34:17.100 INFO [stderr]   |
Nov 17 01:34:17.100 INFO [stderr] 2 |   key: i32,
Nov 17 01:34:17.100 INFO [stderr]   |   ^^^^^^^^
Nov 17 01:34:17.100 INFO [stderr]   |
Nov 17 01:34:17.100 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 17 01:34:17.100 INFO [stderr] 
Nov 17 01:34:17.100 INFO [stderr] warning: function is never used: `taking_mutable_sample`
Nov 17 01:34:17.100 INFO [stderr]   --> src/main.rs:11:1
Nov 17 01:34:17.100 INFO [stderr]    |
Nov 17 01:34:17.100 INFO [stderr] 11 | fn taking_mutable_sample(sample: &mut Sample) {}
Nov 17 01:34:17.100 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:34:17.115 INFO [stderr] 
Nov 17 01:34:17.116 INFO [stderr] warning: function is never used: `mutable_binding_function_calls`
Nov 17 01:34:17.116 INFO [stderr]   --> src/main.rs:42:1
Nov 17 01:34:17.116 INFO [stderr]    |
Nov 17 01:34:17.116 INFO [stderr] 42 | fn mutable_binding_function_calls() {
Nov 17 01:34:17.116 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:34:17.116 INFO [stderr] 
Nov 17 01:34:17.511 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
Nov 17 01:34:17.514 INFO [stderr] su: No module specific data is present
Nov 17 01:34:18.418 INFO running `"docker" "inspect" "bcdca1b904c4601a4fb22e7d90b07297ab98115c51bc02b07f19b5e13a6aaed7"`
Nov 17 01:34:18.742 INFO running `"docker" "rm" "-f" "bcdca1b904c4601a4fb22e7d90b07297ab98115c51bc02b07f19b5e13a6aaed7"`
Nov 17 01:34:19.111 INFO [stdout] bcdca1b904c4601a4fb22e7d90b07297ab98115c51bc02b07f19b5e13a6aaed7
Nov 17 01:34:19.121 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-5/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 01:34:19.475 INFO [stdout] f0f0c11a17750dcf17fdb8d653a33db1e7077f0c9bdd5a52243076ef7e78ec13
Nov 17 01:34:19.481 INFO running `"docker" "start" "-a" "f0f0c11a17750dcf17fdb8d653a33db1e7077f0c9bdd5a52243076ef7e78ec13"`
Nov 17 01:34:20.626 INFO [stderr] usermod: no changes
Nov 17 01:34:20.675 INFO [stderr]    Compiling practice v0.1.0 (/source)
Nov 17 01:34:21.115 INFO [stderr] warning: unused variable: `sample`
Nov 17 01:34:21.115 INFO [stderr]  --> src/main.rs:9:24
Nov 17 01:34:21.115 INFO [stderr]   |
Nov 17 01:34:21.115 INFO [stderr] 9 | fn taking_owned_sample(sample: Sample) {}
Nov 17 01:34:21.115 INFO [stderr]   |                        ^^^^^^ help: consider using `_sample` instead
Nov 17 01:34:21.115 INFO [stderr]   |
Nov 17 01:34:21.115 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 17 01:34:21.115 INFO [stderr] 
Nov 17 01:34:21.115 INFO [stderr] warning: unused variable: `sample`
Nov 17 01:34:21.115 INFO [stderr]   --> src/main.rs:10:25
Nov 17 01:34:21.115 INFO [stderr]    |
Nov 17 01:34:21.115 INFO [stderr] 10 | fn taking_shared_sample(sample: &Sample) {}
Nov 17 01:34:21.115 INFO [stderr]    |                         ^^^^^^ help: consider using `_sample` instead
Nov 17 01:34:21.115 INFO [stderr] 
Nov 17 01:34:21.115 INFO [stderr] warning: unused variable: `sample`
Nov 17 01:34:21.115 INFO [stderr]   --> src/main.rs:11:26
Nov 17 01:34:21.115 INFO [stderr]    |
Nov 17 01:34:21.115 INFO [stderr] 11 | fn taking_mutable_sample(sample: &mut Sample) {}
Nov 17 01:34:21.115 INFO [stderr]    |                          ^^^^^^ help: consider using `_sample` instead
Nov 17 01:34:21.115 INFO [stderr] 
Nov 17 01:34:21.115 INFO [stderr] warning: unused variable: `sample`
Nov 17 01:34:21.115 INFO [stderr]   --> src/main.rs:37:9
Nov 17 01:34:21.115 INFO [stderr]    |
Nov 17 01:34:21.115 INFO [stderr] 37 |     let sample = Sample { key: 1 };
Nov 17 01:34:21.115 INFO [stderr]    |         ^^^^^^ help: consider using `_sample` instead
Nov 17 01:34:21.115 INFO [stderr] 
Nov 17 01:34:21.119 INFO [stderr] warning: variable does not need to be mutable
Nov 17 01:34:21.119 INFO [stderr]   --> src/main.rs:44:9
Nov 17 01:34:21.123 INFO [stderr]    |
Nov 17 01:34:21.123 INFO [stderr] 44 |     let mut sample = Sample { key: 1 };
Nov 17 01:34:21.123 INFO [stderr]    |         ----^^^^^^
Nov 17 01:34:21.123 INFO [stderr]    |         |
Nov 17 01:34:21.123 INFO [stderr]    |         help: remove this `mut`
Nov 17 01:34:21.123 INFO [stderr]    |
Nov 17 01:34:21.123 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 17 01:34:21.123 INFO [stderr] 
Nov 17 01:34:21.123 INFO [stderr] warning: variable does not need to be mutable
Nov 17 01:34:21.123 INFO [stderr]   --> src/main.rs:60:9
Nov 17 01:34:21.123 INFO [stderr]    |
Nov 17 01:34:21.123 INFO [stderr] 60 |     let mut sample = Sample { key: 1 };
Nov 17 01:34:21.123 INFO [stderr]    |         ----^^^^^^
Nov 17 01:34:21.123 INFO [stderr]    |         |
Nov 17 01:34:21.123 INFO [stderr]    |         help: remove this `mut`
Nov 17 01:34:21.123 INFO [stderr] 
Nov 17 01:34:21.123 INFO [stderr] warning: variable does not need to be mutable
Nov 17 01:34:21.123 INFO [stderr]    --> src/main.rs:113:9
Nov 17 01:34:21.123 INFO [stderr]     |
Nov 17 01:34:21.123 INFO [stderr] 113 |     let mut sample = Sample { key: 1 };
Nov 17 01:34:21.123 INFO [stderr]     |         ----^^^^^^
Nov 17 01:34:21.123 INFO [stderr]     |         |
Nov 17 01:34:21.123 INFO [stderr]     |         help: remove this `mut`
Nov 17 01:34:21.123 INFO [stderr] 
Nov 17 01:34:21.123 INFO [stderr] warning: variable does not need to be mutable
Nov 17 01:34:21.123 INFO [stderr]    --> src/main.rs:121:9
Nov 17 01:34:21.123 INFO [stderr]     |
Nov 17 01:34:21.123 INFO [stderr] 121 |     let mut sample = Sample { key: 1 };
Nov 17 01:34:21.123 INFO [stderr]     |         ----^^^^^^
Nov 17 01:34:21.123 INFO [stderr]     |         |
Nov 17 01:34:21.123 INFO [stderr]     |         help: remove this `mut`
Nov 17 01:34:21.123 INFO [stderr] 
Nov 17 01:34:21.123 INFO [stderr] warning: variable does not need to be mutable
Nov 17 01:34:21.123 INFO [stderr]    --> src/main.rs:130:9
Nov 17 01:34:21.123 INFO [stderr]     |
Nov 17 01:34:21.123 INFO [stderr] 130 |     let mut sample = Sample { key: 1 };
Nov 17 01:34:21.123 INFO [stderr]     |         ----^^^^^^
Nov 17 01:34:21.123 INFO [stderr]     |         |
Nov 17 01:34:21.123 INFO [stderr]     |         help: remove this `mut`
Nov 17 01:34:21.123 INFO [stderr] 
Nov 17 01:34:21.123 INFO [stderr] warning: variable does not need to be mutable
Nov 17 01:34:21.123 INFO [stderr]    --> src/main.rs:137:9
Nov 17 01:34:21.123 INFO [stderr]     |
Nov 17 01:34:21.123 INFO [stderr] 137 |     let mut sample = Sample { key: 1 };
Nov 17 01:34:21.123 INFO [stderr]     |         ----^^^^^^
Nov 17 01:34:21.123 INFO [stderr]     |         |
Nov 17 01:34:21.123 INFO [stderr]     |         help: remove this `mut`
Nov 17 01:34:21.123 INFO [stderr] 
Nov 17 01:34:21.123 INFO [stderr] warning: field is never used: `key`
Nov 17 01:34:21.123 INFO [stderr]  --> src/main.rs:2:3
Nov 17 01:34:21.123 INFO [stderr]   |
Nov 17 01:34:21.123 INFO [stderr] 2 |   key: i32,
Nov 17 01:34:21.124 INFO [stderr]   |   ^^^^^^^^
Nov 17 01:34:21.124 INFO [stderr]   |
Nov 17 01:34:21.124 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 17 01:34:21.124 INFO [stderr] 
Nov 17 01:34:21.124 INFO [stderr] warning: function is never used: `taking_mutable_sample`
Nov 17 01:34:21.124 INFO [stderr]   --> src/main.rs:11:1
Nov 17 01:34:21.124 INFO [stderr]    |
Nov 17 01:34:21.124 INFO [stderr] 11 | fn taking_mutable_sample(sample: &mut Sample) {}
Nov 17 01:34:21.124 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:34:21.124 INFO [stderr] 
Nov 17 01:34:21.124 INFO [stderr] warning: function is never used: `mutable_binding_function_calls`
Nov 17 01:34:21.124 INFO [stderr]   --> src/main.rs:42:1
Nov 17 01:34:21.124 INFO [stderr]    |
Nov 17 01:34:21.124 INFO [stderr] 42 | fn mutable_binding_function_calls() {
Nov 17 01:34:21.124 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 01:34:21.124 INFO [stderr] 
Nov 17 01:34:21.445 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
Nov 17 01:34:21.453 INFO [stderr] su: No module specific data is present
Nov 17 01:34:22.817 INFO running `"docker" "inspect" "f0f0c11a17750dcf17fdb8d653a33db1e7077f0c9bdd5a52243076ef7e78ec13"`
Nov 17 01:34:23.247 INFO running `"docker" "rm" "-f" "f0f0c11a17750dcf17fdb8d653a33db1e7077f0c9bdd5a52243076ef7e78ec13"`
Nov 17 01:34:23.599 INFO [stdout] f0f0c11a17750dcf17fdb8d653a33db1e7077f0c9bdd5a52243076ef7e78ec13
Nov 17 01:34:23.608 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-5/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 01:34:24.015 INFO [stdout] 7040b7d15ed0ac314b4c7272d3fe2bda304071d50e2002355401aa265514918e
Nov 17 01:34:24.019 INFO running `"docker" "start" "-a" "7040b7d15ed0ac314b4c7272d3fe2bda304071d50e2002355401aa265514918e"`
Nov 17 01:34:25.015 INFO [stderr] usermod: no changes
Nov 17 01:34:25.099 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Nov 17 01:34:25.103 INFO [stderr]      Running /target/debug/deps/practice-1e610a619a11035c
Nov 17 01:34:25.111 INFO [stdout] 
Nov 17 01:34:25.111 INFO [stdout] running 0 tests
Nov 17 01:34:25.111 INFO [stdout] 
Nov 17 01:34:25.111 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 01:34:25.111 INFO [stdout] 
Nov 17 01:34:25.115 INFO [stderr] su: No module specific data is present
Nov 17 01:34:25.823 INFO running `"docker" "inspect" "7040b7d15ed0ac314b4c7272d3fe2bda304071d50e2002355401aa265514918e"`
Nov 17 01:34:26.135 INFO running `"docker" "rm" "-f" "7040b7d15ed0ac314b4c7272d3fe2bda304071d50e2002355401aa265514918e"`
Nov 17 01:34:26.379 INFO [stdout] 7040b7d15ed0ac314b4c7272d3fe2bda304071d50e2002355401aa265514918e