[INFO] crate neuroflow 0.1.3 is already in cache
[INFO] extracting crate neuroflow 0.1.3 into work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/reg/neuroflow/0.1.3
[INFO] extracting crate neuroflow 0.1.3 into work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/reg/neuroflow/0.1.3
[INFO] validating manifest of neuroflow-0.1.3 on toolchain master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of neuroflow-0.1.3 on toolchain try#bad365140e1e8233b42b21af70a407f14ce5fec5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing neuroflow-0.1.3
[INFO] finished frobbing neuroflow-0.1.3
[INFO] frobbed toml for neuroflow-0.1.3 written to work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/reg/neuroflow/0.1.3/Cargo.toml
[INFO] started frobbing neuroflow-0.1.3
[INFO] finished frobbing neuroflow-0.1.3
[INFO] frobbed toml for neuroflow-0.1.3 written to work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/reg/neuroflow/0.1.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking neuroflow-0.1.3 against try#bad365140e1e8233b42b21af70a407f14ce5fec5 for pr-56896
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56896/worker-3/try#bad365140e1e8233b42b21af70a407f14ce5fec5:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/reg/neuroflow/0.1.3:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c4b4e14a391dd72cbdcc1cf97a26540f4591693f83f07aacd88083d4a0cd91e2
[INFO] running `"docker" "start" "-a" "c4b4e14a391dd72cbdcc1cf97a26540f4591693f83f07aacd88083d4a0cd91e2"`
[INFO] [stderr]     Checking bincode v0.9.2
[INFO] [stderr]     Checking neuroflow v0.1.3 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `nn`
[INFO] [stderr]   --> src/estimators/mod.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub fn OBS(nn: &super::FeedForward) {
[INFO] [stderr]    |            ^^ help: consider using `_nn` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `obj`
[INFO] [stderr]   --> src/io/mod.rs:85:37
[INFO] [stderr]    |
[INFO] [stderr] 85 | pub fn to_json<T: serde::Serialize>(obj: T) {
[INFO] [stderr]    |                                     ^^^ help: consider using `_obj` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/io/mod.rs:90:18
[INFO] [stderr]    |
[INFO] [stderr] 90 | pub fn from_json(s: &str){
[INFO] [stderr]    |                  ^ help: consider using `_s` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `nn`
[INFO] [stderr]   --> src/estimators/mod.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub fn OBS(nn: &super::FeedForward) {
[INFO] [stderr]    |            ^^ help: consider using `_nn` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `obj`
[INFO] [stderr]   --> src/io/mod.rs:85:37
[INFO] [stderr]    |
[INFO] [stderr] 85 | pub fn to_json<T: serde::Serialize>(obj: T) {
[INFO] [stderr]    |                                     ^^^ help: consider using `_obj` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/io/mod.rs:90:18
[INFO] [stderr]    |
[INFO] [stderr] 90 | pub fn from_json(s: &str){
[INFO] [stderr]    |                  ^ help: consider using `_s` instead
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `"docker" "inspect" "c4b4e14a391dd72cbdcc1cf97a26540f4591693f83f07aacd88083d4a0cd91e2"`
[INFO] running `"docker" "rm" "-f" "c4b4e14a391dd72cbdcc1cf97a26540f4591693f83f07aacd88083d4a0cd91e2"`
[INFO] [stdout] c4b4e14a391dd72cbdcc1cf97a26540f4591693f83f07aacd88083d4a0cd91e2