Dec 15 03:42:51.479 INFO testing neuroflow-0.1.3 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 15 03:42:51.479 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 15 03:42:51.705 INFO [stdout] e2224e71657867865d4140a1b86922923247e7607983f77d5fabe327906d6d23
Dec 15 03:42:51.708 INFO running `"docker" "start" "-a" "e2224e71657867865d4140a1b86922923247e7607983f77d5fabe327906d6d23"`
Dec 15 03:42:52.619 INFO [stderr] usermod: no changes
Dec 15 03:42:52.719 INFO [stderr]    Compiling neuroflow v0.1.3 (/source)
Dec 15 03:42:54.020 INFO [stderr] warning: unused variable: `nn`
Dec 15 03:42:54.020 INFO [stderr]   --> src/estimators/mod.rs:26:12
Dec 15 03:42:54.020 INFO [stderr]    |
Dec 15 03:42:54.020 INFO [stderr] 26 | pub fn OBS(nn: &super::FeedForward) {
Dec 15 03:42:54.020 INFO [stderr]    |            ^^ help: consider using `_nn` instead
Dec 15 03:42:54.020 INFO [stderr]    |
Dec 15 03:42:54.020 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 15 03:42:54.020 INFO [stderr] 
Dec 15 03:42:54.020 INFO [stderr] warning: unused variable: `obj`
Dec 15 03:42:54.020 INFO [stderr]   --> src/io/mod.rs:85:37
Dec 15 03:42:54.020 INFO [stderr]    |
Dec 15 03:42:54.020 INFO [stderr] 85 | pub fn to_json<T: serde::Serialize>(obj: T) {
Dec 15 03:42:54.020 INFO [stderr]    |                                     ^^^ help: consider using `_obj` instead
Dec 15 03:42:54.020 INFO [stderr] 
Dec 15 03:42:54.020 INFO [stderr] warning: unused variable: `s`
Dec 15 03:42:54.022 INFO [stderr]   --> src/io/mod.rs:90:18
Dec 15 03:42:54.023 INFO [stderr]    |
Dec 15 03:42:54.023 INFO [stderr] 90 | pub fn from_json(s: &str){
Dec 15 03:42:54.023 INFO [stderr]    |                  ^ help: consider using `_s` instead
Dec 15 03:42:54.023 INFO [stderr] 
Dec 15 03:42:54.419 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.78s
Dec 15 03:42:54.424 INFO [stderr] su: No module specific data is present
Dec 15 03:42:54.677 INFO running `"docker" "inspect" "e2224e71657867865d4140a1b86922923247e7607983f77d5fabe327906d6d23"`
Dec 15 03:42:54.756 INFO running `"docker" "rm" "-f" "e2224e71657867865d4140a1b86922923247e7607983f77d5fabe327906d6d23"`
Dec 15 03:42:54.870 INFO [stdout] e2224e71657867865d4140a1b86922923247e7607983f77d5fabe327906d6d23
Dec 15 03:42:54.872 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-4/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 15 03:42:55.073 INFO [stdout] cb20fc6f86aec3811ec36e2f05f90052429fb450b748a8d7cc044e374ccc68bc
Dec 15 03:42:55.075 INFO running `"docker" "start" "-a" "cb20fc6f86aec3811ec36e2f05f90052429fb450b748a8d7cc044e374ccc68bc"`
Dec 15 03:42:55.687 INFO [stderr] usermod: no changes
Dec 15 03:42:55.757 INFO [stderr]    Compiling neuroflow v0.1.3 (/source)
Dec 15 03:42:56.840 INFO [stderr] warning: unused variable: `nn`
Dec 15 03:42:56.840 INFO [stderr]   --> src/estimators/mod.rs:26:12
Dec 15 03:42:56.840 INFO [stderr]    |
Dec 15 03:42:56.840 INFO [stderr] 26 | pub fn OBS(nn: &super::FeedForward) {
Dec 15 03:42:56.840 INFO [stderr]    |            ^^ help: consider using `_nn` instead
Dec 15 03:42:56.840 INFO [stderr]    |
Dec 15 03:42:56.840 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 15 03:42:56.840 INFO [stderr] 
Dec 15 03:42:56.840 INFO [stderr] warning: unused variable: `obj`
Dec 15 03:42:56.840 INFO [stderr]   --> src/io/mod.rs:85:37
Dec 15 03:42:56.840 INFO [stderr]    |
Dec 15 03:42:56.840 INFO [stderr] 85 | pub fn to_json<T: serde::Serialize>(obj: T) {
Dec 15 03:42:56.840 INFO [stderr]    |                                     ^^^ help: consider using `_obj` instead
Dec 15 03:42:56.840 INFO [stderr] 
Dec 15 03:42:56.840 INFO [stderr] warning: unused variable: `s`
Dec 15 03:42:56.840 INFO [stderr]   --> src/io/mod.rs:90:18
Dec 15 03:42:56.840 INFO [stderr]    |
Dec 15 03:42:56.840 INFO [stderr] 90 | pub fn from_json(s: &str){
Dec 15 03:42:56.840 INFO [stderr]    |                  ^ help: consider using `_s` instead
Dec 15 03:42:56.840 INFO [stderr] 
Dec 15 03:42:57.168 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
Dec 15 03:42:57.177 INFO [stderr] su: No module specific data is present
Dec 15 03:42:57.386 INFO running `"docker" "inspect" "cb20fc6f86aec3811ec36e2f05f90052429fb450b748a8d7cc044e374ccc68bc"`
Dec 15 03:42:57.477 INFO running `"docker" "rm" "-f" "cb20fc6f86aec3811ec36e2f05f90052429fb450b748a8d7cc044e374ccc68bc"`
Dec 15 03:42:57.577 INFO [stdout] cb20fc6f86aec3811ec36e2f05f90052429fb450b748a8d7cc044e374ccc68bc