Dec 12 10:59:21.173 INFO checking neuroflow-0.1.3 against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 10:59:21.173 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 12 10:59:21.324 INFO [stdout] b1193e1fcb71c42b683cdfb758baa60d026ce433ab640d56a8ffcdbce58509a1
Dec 12 10:59:21.330 INFO running `"docker" "start" "-a" "b1193e1fcb71c42b683cdfb758baa60d026ce433ab640d56a8ffcdbce58509a1"`
Dec 12 10:59:21.965 INFO [stderr] usermod: no changes
Dec 12 10:59:22.083 INFO [stderr]     Checking neuroflow v0.1.3 (/source)
Dec 12 10:59:23.324 INFO [stderr] warning: unused variable: `nn`
Dec 12 10:59:23.324 INFO [stderr]   --> src/estimators/mod.rs:26:12
Dec 12 10:59:23.324 INFO [stderr]    |
Dec 12 10:59:23.324 INFO [stderr] 26 | pub fn OBS(nn: &super::FeedForward) {
Dec 12 10:59:23.324 INFO [stderr]    |            ^^ help: consider using `_nn` instead
Dec 12 10:59:23.324 INFO [stderr]    |
Dec 12 10:59:23.324 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 10:59:23.324 INFO [stderr] 
Dec 12 10:59:23.324 INFO [stderr] warning: unused variable: `obj`
Dec 12 10:59:23.324 INFO [stderr]   --> src/io/mod.rs:85:37
Dec 12 10:59:23.324 INFO [stderr]    |
Dec 12 10:59:23.324 INFO [stderr] 85 | pub fn to_json<T: serde::Serialize>(obj: T) {
Dec 12 10:59:23.324 INFO [stderr]    |                                     ^^^ help: consider using `_obj` instead
Dec 12 10:59:23.324 INFO [stderr] 
Dec 12 10:59:23.325 INFO [stderr] warning: unused variable: `s`
Dec 12 10:59:23.325 INFO [stderr]   --> src/io/mod.rs:90:18
Dec 12 10:59:23.325 INFO [stderr]    |
Dec 12 10:59:23.325 INFO [stderr] 90 | pub fn from_json(s: &str){
Dec 12 10:59:23.325 INFO [stderr]    |                  ^ help: consider using `_s` instead
Dec 12 10:59:23.325 INFO [stderr] 
Dec 12 10:59:23.467 INFO [stderr] warning: unused variable: `nn`
Dec 12 10:59:23.467 INFO [stderr]   --> src/estimators/mod.rs:26:12
Dec 12 10:59:23.467 INFO [stderr]    |
Dec 12 10:59:23.467 INFO [stderr] 26 | pub fn OBS(nn: &super::FeedForward) {
Dec 12 10:59:23.467 INFO [stderr]    |            ^^ help: consider using `_nn` instead
Dec 12 10:59:23.467 INFO [stderr]    |
Dec 12 10:59:23.467 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 10:59:23.467 INFO [stderr] 
Dec 12 10:59:23.467 INFO [stderr] warning: unused variable: `obj`
Dec 12 10:59:23.467 INFO [stderr]   --> src/io/mod.rs:85:37
Dec 12 10:59:23.467 INFO [stderr]    |
Dec 12 10:59:23.467 INFO [stderr] 85 | pub fn to_json<T: serde::Serialize>(obj: T) {
Dec 12 10:59:23.467 INFO [stderr]    |                                     ^^^ help: consider using `_obj` instead
Dec 12 10:59:23.468 INFO [stderr] 
Dec 12 10:59:23.468 INFO [stderr] warning: unused variable: `s`
Dec 12 10:59:23.468 INFO [stderr]   --> src/io/mod.rs:90:18
Dec 12 10:59:23.468 INFO [stderr]    |
Dec 12 10:59:23.468 INFO [stderr] 90 | pub fn from_json(s: &str){
Dec 12 10:59:23.468 INFO [stderr]    |                  ^ help: consider using `_s` instead
Dec 12 10:59:23.468 INFO [stderr] 
Dec 12 10:59:23.586 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.60s
Dec 12 10:59:23.592 INFO [stderr] su: No module specific data is present
Dec 12 10:59:24.088 INFO running `"docker" "inspect" "b1193e1fcb71c42b683cdfb758baa60d026ce433ab640d56a8ffcdbce58509a1"`
Dec 12 10:59:24.264 INFO running `"docker" "rm" "-f" "b1193e1fcb71c42b683cdfb758baa60d026ce433ab640d56a8ffcdbce58509a1"`
Dec 12 10:59:24.448 INFO [stdout] b1193e1fcb71c42b683cdfb758baa60d026ce433ab640d56a8ffcdbce58509a1