[INFO] fetching crate neuroflow 0.1.3...
[INFO] testing neuroflow-0.1.3 against 1.54.0 for beta-1.55-1
[INFO] extracting crate neuroflow 0.1.3 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate neuroflow 0.1.3 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate neuroflow 0.1.3
[INFO] finished tweaking crates.io crate neuroflow 0.1.3
[INFO] tweaked toml for crates.io crate neuroflow 0.1.3 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bincode v0.9.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72f92dd56a22738055f8c66031a1a50745b7f6430228aa44101114b3bb4018ea
[INFO] running `Command { std: "docker" "start" "-a" "72f92dd56a22738055f8c66031a1a50745b7f6430228aa44101114b3bb4018ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72f92dd56a22738055f8c66031a1a50745b7f6430228aa44101114b3bb4018ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72f92dd56a22738055f8c66031a1a50745b7f6430228aa44101114b3bb4018ea", kill_on_drop: false }`
[INFO] [stdout] 72f92dd56a22738055f8c66031a1a50745b7f6430228aa44101114b3bb4018ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d30bc16f0c025ae453f57f8000c02336c6e3fea6bdc028646597f7bf19189c3
[INFO] running `Command { std: "docker" "start" "-a" "1d30bc16f0c025ae453f57f8000c02336c6e3fea6bdc028646597f7bf19189c3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling bincode v0.9.2
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling neuroflow v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/data/mod.rs:113:61
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn from_csv(file_path: &str) -> Result<DataSet, Box<std::error::Error>> {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:140:18
[INFO] [stdout]     |
[INFO] [stdout] 140 |     StdError(Box<std::error::Error>)
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nn`
[INFO] [stdout]   --> src/estimators/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn OBS(nn: &super::FeedForward) {
[INFO] [stdout]    |            ^^ help: if this is intentional, prefix it with an underscore: `_nn`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `obj`
[INFO] [stdout]   --> src/io/mod.rs:85:37
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub fn to_json<T: serde::Serialize>(obj: T) {
[INFO] [stdout]    |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_obj`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/io/mod.rs:90:18
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub fn from_json(s: &str){
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.91s
[INFO] running `Command { std: "docker" "inspect" "1d30bc16f0c025ae453f57f8000c02336c6e3fea6bdc028646597f7bf19189c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d30bc16f0c025ae453f57f8000c02336c6e3fea6bdc028646597f7bf19189c3", kill_on_drop: false }`
[INFO] [stdout] 1d30bc16f0c025ae453f57f8000c02336c6e3fea6bdc028646597f7bf19189c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0c94f896210ce0a06016cc542d187d5cb630f28b490f336fdfb38bed85ed966
[INFO] running `Command { std: "docker" "start" "-a" "b0c94f896210ce0a06016cc542d187d5cb630f28b490f336fdfb38bed85ed966", kill_on_drop: false }`
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/data/mod.rs:113:61
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn from_csv(file_path: &str) -> Result<DataSet, Box<std::error::Error>> {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:140:18
[INFO] [stdout]     |
[INFO] [stdout] 140 |     StdError(Box<std::error::Error>)
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nn`
[INFO] [stdout]   --> src/estimators/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn OBS(nn: &super::FeedForward) {
[INFO] [stdout]    |            ^^ help: if this is intentional, prefix it with an underscore: `_nn`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `obj`
[INFO] [stdout]   --> src/io/mod.rs:85:37
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub fn to_json<T: serde::Serialize>(obj: T) {
[INFO] [stdout]    |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_obj`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/io/mod.rs:90:18
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub fn from_json(s: &str){
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling neuroflow v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/data/mod.rs:113:61
[INFO] [stdout]     |
[INFO] [stdout] 113 |     pub fn from_csv(file_path: &str) -> Result<DataSet, Box<std::error::Error>> {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:140:18
[INFO] [stdout]     |
[INFO] [stdout] 140 |     StdError(Box<std::error::Error>)
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nn`
[INFO] [stdout]   --> src/estimators/mod.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn OBS(nn: &super::FeedForward) {
[INFO] [stdout]    |            ^^ help: if this is intentional, prefix it with an underscore: `_nn`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `obj`
[INFO] [stdout]   --> src/io/mod.rs:85:37
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub fn to_json<T: serde::Serialize>(obj: T) {
[INFO] [stdout]    |                                     ^^^ help: if this is intentional, prefix it with an underscore: `_obj`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/io/mod.rs:90:18
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub fn from_json(s: &str){
[INFO] [stdout]    |                  ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `Command { std: "docker" "inspect" "b0c94f896210ce0a06016cc542d187d5cb630f28b490f336fdfb38bed85ed966", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0c94f896210ce0a06016cc542d187d5cb630f28b490f336fdfb38bed85ed966", kill_on_drop: false }`
[INFO] [stdout] b0c94f896210ce0a06016cc542d187d5cb630f28b490f336fdfb38bed85ed966
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 420eba8be45bdb2b48184da298c4f4a6bc08124963b7f04496e31784182f0656
[INFO] running `Command { std: "docker" "start" "-a" "420eba8be45bdb2b48184da298c4f4a6bc08124963b7f04496e31784182f0656", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/data/mod.rs:113:61
[INFO] [stderr]     |
[INFO] [stderr] 113 |     pub fn from_csv(file_path: &str) -> Result<DataSet, Box<std::error::Error>> {
[INFO] [stderr]     |                                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:140:18
[INFO] [stderr]     |
[INFO] [stderr] 140 |     StdError(Box<std::error::Error>)
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: if this is intentional, prefix it with an underscore: `_nn`
[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: if this is intentional, prefix it with an underscore: `_obj`
[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: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/data/mod.rs:113:61
[INFO] [stderr]     |
[INFO] [stderr] 113 |     pub fn from_csv(file_path: &str) -> Result<DataSet, Box<std::error::Error>> {
[INFO] [stderr]     |                                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:140:18
[INFO] [stderr]     |
[INFO] [stderr] 140 |     StdError(Box<std::error::Error>)
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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: if this is intentional, prefix it with an underscore: `_nn`
[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: if this is intentional, prefix it with an underscore: `_obj`
[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: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/neuroflow-3cea8805be3ee909)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests neuroflow
[INFO] [stdout] 
[INFO] [stdout] running 29 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name neuroflow --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bincode=/opt/rustwide/target/debug/deps/libbincode-f76de7c9276073bf.rlib --extern csv=/opt/rustwide/target/debug/deps/libcsv-187efbc8fa88fe96.rlib --extern neuroflow=/opt/rustwide/target/debug/deps/libneuroflow-8569728520fdf36a.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-078a277b2a122fd4.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-1d37970d7e69b8e5.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-05e319b971c8ec6f.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-6c5fd2acb78d0e80.rlib --extern time=/opt/rustwide/target/debug/deps/libtime-f4cd161e736888a0.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "420eba8be45bdb2b48184da298c4f4a6bc08124963b7f04496e31784182f0656", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "420eba8be45bdb2b48184da298c4f4a6bc08124963b7f04496e31784182f0656", kill_on_drop: false }`
[INFO] [stdout] 420eba8be45bdb2b48184da298c4f4a6bc08124963b7f04496e31784182f0656
