[INFO] cloning repository https://github.com/SaadDAHMANI/mlsolver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SaadDAHMANI/mlsolver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSaadDAHMANI%2Fmlsolver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSaadDAHMANI%2Fmlsolver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 33f1eec227280a68589b2615656575aef0f2ed23
[INFO] testing SaadDAHMANI/mlsolver against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSaadDAHMANI%2Fmlsolver" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/SaadDAHMANI/mlsolver
[INFO] finished tweaking git repo https://github.com/SaadDAHMANI/mlsolver
[INFO] tweaked toml for git repo https://github.com/SaadDAHMANI/mlsolver written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SaadDAHMANI/mlsolver on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/SaadDAHMANI/mlsolver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20d8eb25cabdefd8bf29bebebb174939a69ac824da17638fca04d2d53e8c7a9a
[INFO] running `Command { std: "docker" "start" "-a" "20d8eb25cabdefd8bf29bebebb174939a69ac824da17638fca04d2d53e8c7a9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20d8eb25cabdefd8bf29bebebb174939a69ac824da17638fca04d2d53e8c7a9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20d8eb25cabdefd8bf29bebebb174939a69ac824da17638fca04d2d53e8c7a9a", kill_on_drop: false }`
[INFO] [stdout] 20d8eb25cabdefd8bf29bebebb174939a69ac824da17638fca04d2d53e8c7a9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7dfdc92b6f542f1038d93842a75863064093b92a14d6b7fb47f4a00d7b6309ff
[INFO] running `Command { std: "docker" "start" "-a" "7dfdc92b6f542f1038d93842a75863064093b92a14d6b7fb47f4a00d7b6309ff", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling peroxide v0.30.9
[INFO] [stderr]    Compiling order-stat v0.1.3
[INFO] [stderr]    Compiling puruspe v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling thread-tree v0.3.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling matrixmultiply v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling rand_distr v0.4.1
[INFO] [stderr]    Compiling peroxide-ad v0.3.0
[INFO] [stderr]    Compiling mlsolver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]   --> src/mlsolver.rs:22:27
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let (a21, a10, h0, q, r) = network.get_network();
[INFO] [stdout]    |                           ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `velocity` is never used
[INFO] [stdout]   --> src/pipe.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Pipe {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 63 |     fn velocity(&self)-> Option<f64> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `flow` and `head` are never read
[INFO] [stdout]  --> src/pump.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Pump{
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 8 |     flow : Option<f64>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 9 |     head : Option<f64>, 
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Pump` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `head_of` and `head` are never used
[INFO] [stdout]   --> src/pump.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Pump {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 18 |     fn head_of(&self, flow :f64)->f64 {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     fn head(&self)-> Option<f64> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flow` is never read
[INFO] [stdout]  --> src/valve.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Valve{
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     flow : Option<f64>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Valve` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `network1` is never used
[INFO] [stdout]  --> src/benchmark.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn network1()-> (Vec<Vec<f64>>, Vec<Vec<f64>>, Vec<f64>, Vec<f64>, Vec<f64>) {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `network7` is never used
[INFO] [stdout]   --> src/benchmark.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn network7()->Network {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `network2` is never used
[INFO] [stdout]    --> src/benchmark.rs:166:4
[INFO] [stdout]     |
[INFO] [stdout] 166 | fn network2()-> (Vec<Vec<f64>>, Vec<Vec<f64>>, Vec<f64>, Vec<f64>, Vec<f64>) {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `network3` is never used
[INFO] [stdout]    --> src/benchmark.rs:222:4
[INFO] [stdout]     |
[INFO] [stdout] 222 | fn network3()->Network {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `network4` is never used
[INFO] [stdout]    --> src/benchmark.rs:312:4
[INFO] [stdout]     |
[INFO] [stdout] 312 | fn network4()->Network {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `network5` is never used
[INFO] [stdout]    --> src/benchmark.rs:424:4
[INFO] [stdout]     |
[INFO] [stdout] 424 | fn network5()-> Network {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `network6` is never used
[INFO] [stdout]    --> src/benchmark.rs:525:4
[INFO] [stdout]     |
[INFO] [stdout] 525 | fn network6()-> Network {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `network1_todini` is never used
[INFO] [stdout]    --> src/benchmark.rs:640:4
[INFO] [stdout]     |
[INFO] [stdout] 640 | fn network1_todini()-> Network {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.14s
[INFO] running `Command { std: "docker" "inspect" "7dfdc92b6f542f1038d93842a75863064093b92a14d6b7fb47f4a00d7b6309ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dfdc92b6f542f1038d93842a75863064093b92a14d6b7fb47f4a00d7b6309ff", kill_on_drop: false }`
[INFO] [stdout] 7dfdc92b6f542f1038d93842a75863064093b92a14d6b7fb47f4a00d7b6309ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5eb5313889e857414950fb7673bc2c92cba96789f2d5622456384ad5aafcfc3
[INFO] running `Command { std: "docker" "start" "-a" "e5eb5313889e857414950fb7673bc2c92cba96789f2d5622456384ad5aafcfc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling mlsolver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]   --> src/mlsolver.rs:22:27
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let (a21, a10, h0, q, r) = network.get_network();
[INFO] [stdout]    |                           ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `velocity` is never used
[INFO] [stdout]   --> src/pipe.rs:63:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Pipe {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 63 |     fn velocity(&self)-> Option<f64> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `flow` and `head` are never read
[INFO] [stdout]  --> src/pump.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Pump{
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 8 |     flow : Option<f64>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 9 |     head : Option<f64>, 
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Pump` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `head` is never used
[INFO] [stdout]   --> src/pump.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Pump {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     fn head(&self)-> Option<f64> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flow` is never read
[INFO] [stdout]  --> src/valve.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Valve{
[INFO] [stdout]   |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     flow : Option<f64>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Valve` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `network1` is never used
[INFO] [stdout]  --> src/benchmark.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn network1()-> (Vec<Vec<f64>>, Vec<Vec<f64>>, Vec<f64>, Vec<f64>, Vec<f64>) {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `network7` is never used
[INFO] [stdout]   --> src/benchmark.rs:59:4
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn network7()->Network {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `network2` is never used
[INFO] [stdout]    --> src/benchmark.rs:166:4
[INFO] [stdout]     |
[INFO] [stdout] 166 | fn network2()-> (Vec<Vec<f64>>, Vec<Vec<f64>>, Vec<f64>, Vec<f64>, Vec<f64>) {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `network5` is never used
[INFO] [stdout]    --> src/benchmark.rs:424:4
[INFO] [stdout]     |
[INFO] [stdout] 424 | fn network5()-> Network {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `network6` is never used
[INFO] [stdout]    --> src/benchmark.rs:525:4
[INFO] [stdout]     |
[INFO] [stdout] 525 | fn network6()-> Network {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `network1_todini` is never used
[INFO] [stdout]    --> src/benchmark.rs:640:4
[INFO] [stdout]     |
[INFO] [stdout] 640 | fn network1_todini()-> Network {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "e5eb5313889e857414950fb7673bc2c92cba96789f2d5622456384ad5aafcfc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5eb5313889e857414950fb7673bc2c92cba96789f2d5622456384ad5aafcfc3", kill_on_drop: false }`
[INFO] [stdout] e5eb5313889e857414950fb7673bc2c92cba96789f2d5622456384ad5aafcfc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 39ca7686085f9e20e8df161530b971565ef34866e4395c57e630bde33bf30d5b
[INFO] running `Command { std: "docker" "start" "-a" "39ca7686085f9e20e8df161530b971565ef34866e4395c57e630bde33bf30d5b", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]   --> src/mlsolver.rs:22:27
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let (a21, a10, h0, q, r) = network.get_network();
[INFO] [stderr]    |                           ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `velocity` is never used
[INFO] [stderr]   --> src/pipe.rs:63:8
[INFO] [stderr]    |
[INFO] [stderr] 17 | impl Pipe {
[INFO] [stderr]    | --------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 63 |     fn velocity(&self)-> Option<f64> {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `flow` and `head` are never read
[INFO] [stderr]  --> src/pump.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Pump{
[INFO] [stderr]   |            ---- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 8 |     flow : Option<f64>,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 9 |     head : Option<f64>, 
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Pump` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: method `head` is never used
[INFO] [stderr]   --> src/pump.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 17 | impl Pump {
[INFO] [stderr]    | --------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 22 |     fn head(&self)-> Option<f64> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `flow` is never read
[INFO] [stderr]  --> src/valve.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Valve{
[INFO] [stderr]   |            ----- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 9 |     flow : Option<f64>,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Valve` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: function `network1` is never used
[INFO] [stderr]  --> src/benchmark.rs:3:4
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn network1()-> (Vec<Vec<f64>>, Vec<Vec<f64>>, Vec<f64>, Vec<f64>, Vec<f64>) {
[INFO] [stderr]   |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `network7` is never used
[INFO] [stderr]   --> src/benchmark.rs:59:4
[INFO] [stderr]    |
[INFO] [stderr] 59 | fn network7()->Network {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `network2` is never used
[INFO] [stderr]    --> src/benchmark.rs:166:4
[INFO] [stderr]     |
[INFO] [stderr] 166 | fn network2()-> (Vec<Vec<f64>>, Vec<Vec<f64>>, Vec<f64>, Vec<f64>, Vec<f64>) {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `network5` is never used
[INFO] [stderr]    --> src/benchmark.rs:424:4
[INFO] [stderr]     |
[INFO] [stderr] 424 | fn network5()-> Network {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `network6` is never used
[INFO] [stderr]    --> src/benchmark.rs:525:4
[INFO] [stderr]     |
[INFO] [stderr] 525 | fn network6()-> Network {
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `network1_todini` is never used
[INFO] [stderr]    --> src/benchmark.rs:640:4
[INFO] [stderr]     |
[INFO] [stderr] 640 | fn network1_todini()-> Network {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `mlsolver` (bin "mlsolver" test) generated 11 warnings (run `cargo fix --bin "mlsolver" -p mlsolver --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mlsolver-2edbc156abb67cc2)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::invers_diagonal_test1 ... ok
[INFO] [stdout] test tests::invers_diagonal_when_fail ... ok
[INFO] [stdout] test tests::mlsolver_network1_test ... ok
[INFO] [stdout] test tests::product2_test1 ... ok
[INFO] [stdout] test pump_tests::get_rq_when_pump_closed ... ok
[INFO] [stdout] test tests::product_test1 ... ok
[INFO] [stdout] test network_tests::get_network_2tanks_1pump ... ok
[INFO] [stdout] test pump_tests::head_of_test1 ... ok
[INFO] [stdout] test network_tests::get_network_1tank ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- network_tests::get_network_1tank stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'network_tests::get_network_1tank' (18) panicked at src/network.rs:225:6:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: [0.02, 0.01]
[INFO] [stdout]  right: [0.1, 0.1]
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x611597afd87a - std[ec419fa8110287d5]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x611597afd87a - std[ec419fa8110287d5]::backtrace_rs::backtrace::trace_unsynchronized::<std[ec419fa8110287d5]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x611597afd87a - std[ec419fa8110287d5]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x611597afd87a - <<std[ec419fa8110287d5]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[35159d6ffb30e017]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x611597b11a3a - <core[35159d6ffb30e017]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x611597b11a3a - core[35159d6ffb30e017]::fmt::write
[INFO] [stdout]    6:     0x611597b020b2 - std[ec419fa8110287d5]::io::default_write_fmt::<alloc[a8a7aba520129d98]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/io/mod.rs:621:11
[INFO] [stdout]    7:     0x611597b020b2 - <alloc[a8a7aba520129d98]::vec::Vec<u8> as std[ec419fa8110287d5]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/io/mod.rs:1976:13
[INFO] [stdout]    8:     0x611597adc87f - <std[ec419fa8110287d5]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x611597adc87f - std[ec419fa8110287d5]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x611597af5d29 - std[ec419fa8110287d5]::panicking::default_hook
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x611597a9253c - <alloc[a8a7aba520129d98]::boxed::Box<dyn for<'a, 'b> core[35159d6ffb30e017]::ops::function::Fn<(&'a std[ec419fa8110287d5]::panic::PanicHookInfo<'b>,), Output = ()> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::marker::Send> as core[35159d6ffb30e017]::ops::function::Fn<(&std[ec419fa8110287d5]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/alloc/src/boxed.rs:2285:9
[INFO] [stdout]   12:     0x611597a9253c - test[a8007afcd3effadc]::test_main_inner::<test[a8007afcd3effadc]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x611597af5ee2 - <alloc[a8a7aba520129d98]::boxed::Box<dyn for<'a, 'b> core[35159d6ffb30e017]::ops::function::Fn<(&'a std[ec419fa8110287d5]::panic::PanicHookInfo<'b>,), Output = ()> + core[35159d6ffb30e017]::marker::Sync + core[35159d6ffb30e017]::marker::Send> as core[35159d6ffb30e017]::ops::function::Fn<(&std[ec419fa8110287d5]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/alloc/src/boxed.rs:2285:9
[INFO] [stdout]   14:     0x611597af5ee2 - std[ec419fa8110287d5]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x611597adc938 - std[ec419fa8110287d5]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x611597ad42d9 - std[ec419fa8110287d5]::sys::backtrace::__rust_end_short_backtrace::<std[ec419fa8110287d5]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x611597add64d - __rustc[cfb3622dd870db93]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x611597b1218c - core[35159d6ffb30e017]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x611597b12043 - core[35159d6ffb30e017]::panicking::assert_failed_inner
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/panicking.rs:439:17
[INFO] [stdout]   20:     0x611597a7884a - core[35159d6ffb30e017]::panicking::assert_failed::<alloc[a8a7aba520129d98]::vec::Vec<f64>, alloc[a8a7aba520129d98]::vec::Vec<f64>>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/panicking.rs:394:5
[INFO] [stdout]   21:     0x611597a7f421 - mlsolver[6316b458c750d0c]::network_tests::get_network_1tank
[INFO] [stdout]                                at /opt/rustwide/workdir/src/network.rs:225:6
[INFO] [stdout]   22:     0x611597a78957 - mlsolver[6316b458c750d0c]::network_tests::get_network_1tank::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/network.rs:212:27
[INFO] [stdout]   23:     0x611597a835c6 - <mlsolver[6316b458c750d0c]::network_tests::get_network_1tank::{closure#0} as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x611597a8581b - <fn() -> core[35159d6ffb30e017]::result::Result<(), alloc[a8a7aba520129d98]::string::String> as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x611597a8581b - test[a8007afcd3effadc]::__rust_begin_short_backtrace::<core[35159d6ffb30e017]::result::Result<(), alloc[a8a7aba520129d98]::string::String>, fn() -> core[35159d6ffb30e017]::result::Result<(), alloc[a8a7aba520129d98]::string::String>>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/test/src/lib.rs:724:18
[INFO] [stdout]   26:     0x611597a9300b - test[a8007afcd3effadc]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/test/src/lib.rs:747:74
[INFO] [stdout]   27:     0x611597a9300b - <core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<test[a8007afcd3effadc]::run_test_in_process::{closure#0}> as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   28:     0x611597a9300b - std[ec419fa8110287d5]::panicking::catch_unwind::do_call::<core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<test[a8007afcd3effadc]::run_test_in_process::{closure#0}>, core[35159d6ffb30e017]::result::Result<(), alloc[a8a7aba520129d98]::string::String>>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x611597a9300b - std[ec419fa8110287d5]::panicking::catch_unwind::<core[35159d6ffb30e017]::result::Result<(), alloc[a8a7aba520129d98]::string::String>, core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<test[a8007afcd3effadc]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x611597a9300b - std[ec419fa8110287d5]::panic::catch_unwind::<core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<test[a8007afcd3effadc]::run_test_in_process::{closure#0}>, core[35159d6ffb30e017]::result::Result<(), alloc[a8a7aba520129d98]::string::String>>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x611597a9300b - test[a8007afcd3effadc]::run_test_in_process
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/test/src/lib.rs:747:27
[INFO] [stdout]   32:     0x611597a9300b - test[a8007afcd3effadc]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/test/src/lib.rs:668:43
[INFO] [stdout]   33:     0x611597a8d9e4 - test[a8007afcd3effadc]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/test/src/lib.rs:698:41
[INFO] [stdout]   34:     0x611597a8d9e4 - std[ec419fa8110287d5]::sys::backtrace::__rust_begin_short_backtrace::<test[a8007afcd3effadc]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x611597a95c12 - std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked::<test[a8007afcd3effadc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   36:     0x611597a95c12 - <core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked<test[a8007afcd3effadc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   37:     0x611597a95c12 - std[ec419fa8110287d5]::panicking::catch_unwind::do_call::<core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked<test[a8007afcd3effadc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stderr] error: test failed, to rerun pass `--bin mlsolver`
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x611597a95c12 - std[ec419fa8110287d5]::panicking::catch_unwind::<(), core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked<test[a8007afcd3effadc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x611597a95c12 - std[ec419fa8110287d5]::panic::catch_unwind::<core[35159d6ffb30e017]::panic::unwind_safe::AssertUnwindSafe<std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked<test[a8007afcd3effadc]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x611597a95c12 - std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked::<test[a8007afcd3effadc]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   41:     0x611597a95c12 - <std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked<test[a8007afcd3effadc]::run_test::{closure#1}, ()>::{closure#1} as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x611597afd18f - <alloc[a8a7aba520129d98]::boxed::Box<dyn core[35159d6ffb30e017]::ops::function::FnOnce<(), Output = ()> + core[35159d6ffb30e017]::marker::Send> as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/alloc/src/boxed.rs:2271:9
[INFO] [stdout]   43:     0x611597afd18f - <std[ec419fa8110287d5]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/33835004928d3bf65db4d4712e1330766263b0bd/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   44:     0x7e2153daaaa4 - <unknown>
[INFO] [stdout]   45:     0x7e2153e37a64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     network_tests::get_network_1tank
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 8 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "39ca7686085f9e20e8df161530b971565ef34866e4395c57e630bde33bf30d5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39ca7686085f9e20e8df161530b971565ef34866e4395c57e630bde33bf30d5b", kill_on_drop: false }`
[INFO] [stdout] 39ca7686085f9e20e8df161530b971565ef34866e4395c57e630bde33bf30d5b
