[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 1.90.0 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSaadDAHMANI%2Fmlsolver" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/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-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SaadDAHMANI/mlsolver on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded puruspe v0.1.5
[INFO] [stderr]   Downloaded matrixmultiply v0.3.1
[INFO] [stderr]   Downloaded peroxide-ad v0.3.0
[INFO] [stderr]   Downloaded order-stat v0.1.3
[INFO] [stderr]   Downloaded thread-tree v0.3.2
[INFO] [stderr]   Downloaded rand_distr v0.4.1
[INFO] [stderr]   Downloaded peroxide v0.30.9
[INFO] [stderr]   Downloaded syn v1.0.75
[INFO] [stderr]   Downloaded libc v0.2.100
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b3a93c643a080cec307336241c5035db7db2f0122dc7ab11cde2c18694326ead
[INFO] running `Command { std: "docker" "start" "-a" "b3a93c643a080cec307336241c5035db7db2f0122dc7ab11cde2c18694326ead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3a93c643a080cec307336241c5035db7db2f0122dc7ab11cde2c18694326ead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3a93c643a080cec307336241c5035db7db2f0122dc7ab11cde2c18694326ead", kill_on_drop: false }`
[INFO] [stdout] b3a93c643a080cec307336241c5035db7db2f0122dc7ab11cde2c18694326ead
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 899933080e4758ac1d3a216255e1c1d468f7b9932849a49e2dcc9547969ea7d3
[INFO] running `Command { std: "docker" "start" "-a" "899933080e4758ac1d3a216255e1c1d468f7b9932849a49e2dcc9547969ea7d3", 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 libm v0.2.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling peroxide v0.30.9
[INFO] [stderr]    Compiling rawpointer v0.2.1
[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 quote v1.0.9
[INFO] [stderr]    Compiling thread-tree v0.3.2
[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 matrixmultiply v0.3.1
[INFO] [stderr]    Compiling rand_chacha 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)]` 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)]` 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 12.63s
[INFO] running `Command { std: "docker" "inspect" "899933080e4758ac1d3a216255e1c1d468f7b9932849a49e2dcc9547969ea7d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "899933080e4758ac1d3a216255e1c1d468f7b9932849a49e2dcc9547969ea7d3", kill_on_drop: false }`
[INFO] [stdout] 899933080e4758ac1d3a216255e1c1d468f7b9932849a49e2dcc9547969ea7d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e90d3e722b8b985875f9af683d8a1543bac4b8e7cbb390a6c58298336562169
[INFO] running `Command { std: "docker" "start" "-a" "8e90d3e722b8b985875f9af683d8a1543bac4b8e7cbb390a6c58298336562169", 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)]` 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)]` 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 0.81s
[INFO] running `Command { std: "docker" "inspect" "8e90d3e722b8b985875f9af683d8a1543bac4b8e7cbb390a6c58298336562169", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e90d3e722b8b985875f9af683d8a1543bac4b8e7cbb390a6c58298336562169", kill_on_drop: false }`
[INFO] [stdout] 8e90d3e722b8b985875f9af683d8a1543bac4b8e7cbb390a6c58298336562169
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 62d019177e3001f8e358dbfb05b1049559ac476908b3840b49f65f5bf5018848
[INFO] running `Command { std: "docker" "start" "-a" "62d019177e3001f8e358dbfb05b1049559ac476908b3840b49f65f5bf5018848", 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)]` 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)]` 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
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mlsolver-0bf647027ba02f92)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test network_tests::get_network_2tanks_1pump ... ok
[INFO] [stdout] test pump_tests::get_rq_when_pump_closed ... ok
[INFO] [stdout] test pump_tests::head_of_test1 ... ok
[INFO] [stdout] test tests::invers_diagonal_test1 ... ok
[INFO] [stdout] test tests::mlsolver_network1_test ... ok
[INFO] [stdout] test tests::product2_test1 ... ok
[INFO] [stdout] test tests::product_test1 ... ok
[INFO] [stdout] test tests::invers_diagonal_when_fail ... 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' 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:     0x6404c4752b32 - std::backtrace_rs::backtrace::libunwind::trace::h2d45396358f41939
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x6404c4752b32 - std::backtrace_rs::backtrace::trace_unsynchronized::hffcefc0b67f1d6e2
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x6404c4752b32 - std::sys::backtrace::_print_fmt::hd72f71d23b436b92
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x6404c4752b32 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hdcfcb6d4c8489523
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x6404c4778163 - core::fmt::rt::Argument::fmt::h2c56b3114963061a
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x6404c4778163 - core::fmt::write::h8a494366950f23bb
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x6404c474fab3 - std::io::default_write_fmt::h7b8824096454f323
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x6404c474fab3 - std::io::Write::write_fmt::h4e71294925c334d0
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x6404c4752982 - std::sys::backtrace::BacktraceLock::print::hb2a626a81e06b2dc
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x6404c47540a9 - std::panicking::default_hook::{{closure}}::h4f78485264f12d10
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x6404c4753ede - std::panicking::default_hook::h2c66fc99e962531d
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x6404c471c4b4 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hb6bd65493727d71a
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x6404c471c4b4 - test::test_main_with_exit_callback::{{closure}}::h60217ec76a0ece4a
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x6404c4754a7e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h318e4efb8c1a5689
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x6404c4754a7e - std::panicking::rust_panic_with_hook::h33ac55f64bbd807d
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x6404c475484a - std::panicking::begin_panic_handler::{{closure}}::h30e7cb89678a57fe
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:706:13
[INFO] [stdout]   16:     0x6404c4753029 - std::sys::backtrace::__rust_end_short_backtrace::hed60f27456c16ced
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x6404c47544dd - __rustc[de2ca18b4c54d5b8]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x6404c4776830 - core::panicking::panic_fmt::h62f63d096dd276af
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x6404c4776b53 - core::panicking::assert_failed_inner::h102b4539a88470c2
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:448:17
[INFO] [stdout]   20:     0x6404c46d4b14 - core::panicking::assert_failed::ha2c37a118c6a0675
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:403:5
[INFO] [stdout]   21:     0x6404c46d8eb4 - mlsolver::network_tests::get_network_1tank::h0c3b04d012fdd15e
[INFO] [stdout]                                at /opt/rustwide/workdir/src/network.rs:225:6
[INFO] [stdout]   22:     0x6404c46d8777 - mlsolver::network_tests::get_network_1tank::{{closure}}::hd53c14c732d8225f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/network.rs:212:27
[INFO] [stdout]   23:     0x6404c46d39a6 - core::ops::function::FnOnce::call_once::hba4cdca1b0c312f4
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   24:     0x6404c4721d1b - core::ops::function::FnOnce::call_once::h1f9474f1347fff52
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   25:     0x6404c4721d1b - test::__rust_begin_short_backtrace::ha52ab26e77157f03
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:648:18
[INFO] [stdout]   26:     0x6404c4720e55 - test::run_test_in_process::{{closure}}::h229c1a11a50b261f
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:671:74
[INFO] [stdout]   27:     0x6404c4720e55 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h78821afbf97b39a9
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x6404c4720e55 - std::panicking::catch_unwind::do_call::h53abf3ed5bd32ba3
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stdout]   29:     0x6404c4720e55 - std::panicking::catch_unwind::h6deb5fe1e91873c9
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stdout]   30:     0x6404c4720e55 - std::panic::catch_unwind::hea0829b6b565654b
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x6404c4720e55 - test::run_test_in_process::hdc44dfecea3db21b
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:671:27
[INFO] [stdout]   32:     0x6404c4720e55 - test::run_test::{{closure}}::h0364ba59bf23f652
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:592:43
[INFO] [stdout]   33:     0x6404c46e4a54 - test::run_test::{{closure}}::h32730b304eec05da
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:622:41
[INFO] [stdout]   34:     0x6404c46e4a54 - std::sys::backtrace::__rust_begin_short_backtrace::h177cb952fc54ad2c
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x6404c46e842a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h119d903520007597
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x6404c46e842a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hab88401d606702a6
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x6404c46e842a - std::panicking::catch_unwind::do_call::h163fe12cca9901c2
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stdout]   38:     0x6404c46e842a - std::panicking::catch_unwind::he81557d0e17cc1bc
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stdout]   39:     0x6404c46e842a - std::panic::catch_unwind::hc2b8e79c20593955
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x6404c46e842a - std::thread::Builder::spawn_unchecked_::{{closure}}::hfa6b4978e07815cc
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x6404c46e842a - core::ops::function::FnOnce::call_once{{vtable.shim}}::hddcd7484a13fd793
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   42:     0x6404c47579ff - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5924238c754de3b8
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   43:     0x6404c47579ff - std::sys::pal::unix::thread::Thread::new::thread_start::hb6e99e73da4d28f8
[INFO] [stdout]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/pal/unix/thread.rs:107:17
[INFO] [stdout]   44:     0x795cceee2aa4 - <unknown>
[INFO] [stdout]   45:     0x795ccef6fa34 - 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 0.14s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin mlsolver`
[INFO] running `Command { std: "docker" "inspect" "62d019177e3001f8e358dbfb05b1049559ac476908b3840b49f65f5bf5018848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62d019177e3001f8e358dbfb05b1049559ac476908b3840b49f65f5bf5018848", kill_on_drop: false }`
[INFO] [stdout] 62d019177e3001f8e358dbfb05b1049559ac476908b3840b49f65f5bf5018848
