[INFO] fetching crate xapphire 0.1.0...
[INFO] testing xapphire-0.1.0 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate xapphire 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate xapphire 0.1.0 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xapphire 0.1.0
[INFO] finished tweaking crates.io crate xapphire 0.1.0
[INFO] tweaked toml for crates.io crate xapphire 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7640c9d5c6d330eb861ba58e319e93c7048376a0f6d4e6a1b1955a482713df0c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7640c9d5c6d330eb861ba58e319e93c7048376a0f6d4e6a1b1955a482713df0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7640c9d5c6d330eb861ba58e319e93c7048376a0f6d4e6a1b1955a482713df0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7640c9d5c6d330eb861ba58e319e93c7048376a0f6d4e6a1b1955a482713df0c", kill_on_drop: false }`
[INFO] [stdout] 7640c9d5c6d330eb861ba58e319e93c7048376a0f6d4e6a1b1955a482713df0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73605eb5ff2f2d2b2ef57ee610be714cc2d55b5ef49c9dda71bbfe0d12545265
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "73605eb5ff2f2d2b2ef57ee610be714cc2d55b5ef49c9dda71bbfe0d12545265", kill_on_drop: false }`
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-complex v0.3.0
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling num v0.3.0
[INFO] [stderr]    Compiling xapphire v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `num::Float`
[INFO] [stdout]  --> src/cg.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Float`
[INFO] [stdout]  --> src/gs.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Float`
[INFO] [stdout]  --> src/jacobi.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Float`
[INFO] [stdout]  --> src/ssor.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `alpha` is never read
[INFO] [stdout]   --> src/cg.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut alpha = 0.;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `alpha` is never read
[INFO] [stdout]    --> src/cg.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let mut alpha = 0.;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `det`
[INFO] [stdout]   --> src/lu.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn det(a: &mut Array<f64, Ix2>, count_permute: usize) -> Option<f64> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `permute`
[INFO] [stdout]    --> src/lu.rs:134:4
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn permute(a: &mut Array<f64, Ix2>, p: &mut [usize]) {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.87s
[INFO] running `Command { std: "docker" "inspect" "73605eb5ff2f2d2b2ef57ee610be714cc2d55b5ef49c9dda71bbfe0d12545265", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73605eb5ff2f2d2b2ef57ee610be714cc2d55b5ef49c9dda71bbfe0d12545265", kill_on_drop: false }`
[INFO] [stdout] 73605eb5ff2f2d2b2ef57ee610be714cc2d55b5ef49c9dda71bbfe0d12545265
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f946109be165ba7c7c2f47fd96bd452649d20f2d6f349eb8d768731e02535b24
[INFO] running `Command { std: "docker" "start" "-a" "f946109be165ba7c7c2f47fd96bd452649d20f2d6f349eb8d768731e02535b24", kill_on_drop: false }`
[INFO] [stderr]    Compiling xapphire v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `num::Float`
[INFO] [stdout]  --> src/cg.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Float`
[INFO] [stdout]  --> src/gs.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Float`
[INFO] [stdout]  --> src/jacobi.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Float`
[INFO] [stdout]  --> src/ssor.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `alpha` is never read
[INFO] [stdout]   --> src/cg.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut alpha = 0.;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `alpha` is never read
[INFO] [stdout]    --> src/cg.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let mut alpha = 0.;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `det`
[INFO] [stdout]   --> src/lu.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn det(a: &mut Array<f64, Ix2>, count_permute: usize) -> Option<f64> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `permute`
[INFO] [stdout]    --> src/lu.rs:134:4
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn permute(a: &mut Array<f64, Ix2>, p: &mut [usize]) {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Float`
[INFO] [stdout]  --> src/cg.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Float`
[INFO] [stdout]  --> src/util.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Float`
[INFO] [stdout]  --> src/gs.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Float`
[INFO] [stdout]  --> src/jacobi.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `num::Float`
[INFO] [stdout]  --> src/ssor.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `alpha` is never read
[INFO] [stdout]   --> src/cg.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut alpha = 0.;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `alpha` is never read
[INFO] [stdout]    --> src/cg.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let mut alpha = 0.;
[INFO] [stdout]     |         ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `orig`
[INFO] [stdout]   --> src/cg.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let orig = a.clone();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_orig`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `orig`
[INFO] [stdout]   --> src/cg.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |     let orig = a.clone();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_orig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `orig`
[INFO] [stdout]    --> src/cg.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |     let orig = a.clone();
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_orig`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cg.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut a = arr2(&[[4., 1.], [1., 3.]]);
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/cg.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |     let mut a = arr2(&[[5., 3., 1.], [3., 4., 2.], [1., 2., 3.]]);
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cg.rs:133:9
[INFO] [stdout]     |
[INFO] [stdout] 133 |     let mut a = arr2(&[[5., 3., 1.], [3., 4., 2.], [1., 2., 3.]]);
[INFO] [stdout]     |         ----^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/cg.rs:141:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |     let mut precond = arr2(&[[5., 0., 0.], [0., 4., 0.], [0., 0., 5.]]);
[INFO] [stdout]     |         ----^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `arr2_eq_tol`
[INFO] [stdout]   --> src/util.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn arr2_eq_tol(a: &Array<f64, Ix2>, b: &Array<f64, Ix2>, tol: f64) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `det`
[INFO] [stdout]   --> src/lu.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn det(a: &mut Array<f64, Ix2>, count_permute: usize) -> Option<f64> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.92s
[INFO] running `Command { std: "docker" "inspect" "f946109be165ba7c7c2f47fd96bd452649d20f2d6f349eb8d768731e02535b24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f946109be165ba7c7c2f47fd96bd452649d20f2d6f349eb8d768731e02535b24", kill_on_drop: false }`
[INFO] [stdout] f946109be165ba7c7c2f47fd96bd452649d20f2d6f349eb8d768731e02535b24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e2e1ceb6d1a6d3e780995ed94b792e60c9e227a34d9cee474a839a8b8e138d6f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e2e1ceb6d1a6d3e780995ed94b792e60c9e227a34d9cee474a839a8b8e138d6f", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `num::Float`
[INFO] [stderr]  --> src/cg.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use num::Float;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::Float`
[INFO] [stderr]  --> src/util.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use num::Float;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::Float`
[INFO] [stderr]  --> src/gs.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use num::Float;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::Float`
[INFO] [stderr]  --> src/jacobi.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use num::Float;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::Float`
[INFO] [stderr]  --> src/ssor.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use num::Float;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `alpha` is never read
[INFO] [stderr]   --> src/cg.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut alpha = 0.;
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `alpha` is never read
[INFO] [stderr]    --> src/cg.rs:105:9
[INFO] [stderr]     |
[INFO] [stderr] 105 |     let mut alpha = 0.;
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `orig`
[INFO] [stderr]   --> src/cg.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |     let orig = a.clone();
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_orig`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `orig`
[INFO] [stderr]   --> src/cg.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |     let orig = a.clone();
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_orig`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `orig`
[INFO] [stderr]    --> src/cg.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 |     let orig = a.clone();
[INFO] [stderr]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_orig`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/cg.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |     let mut a = arr2(&[[4., 1.], [1., 3.]]);
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/cg.rs:69:9
[INFO] [stderr]    |
[INFO] [stderr] 69 |     let mut a = arr2(&[[5., 3., 1.], [3., 4., 2.], [1., 2., 3.]]);
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/cg.rs:133:9
[INFO] [stderr]     |
[INFO] [stderr] 133 |     let mut a = arr2(&[[5., 3., 1.], [3., 4., 2.], [1., 2., 3.]]);
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/cg.rs:141:9
[INFO] [stderr]     |
[INFO] [stderr] 141 |     let mut precond = arr2(&[[5., 0., 0.], [0., 4., 0.], [0., 0., 5.]]);
[INFO] [stderr]     |         ----^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `arr2_eq_tol`
[INFO] [stderr]   --> src/util.rs:39:8
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn arr2_eq_tol(a: &Array<f64, Ix2>, b: &Array<f64, Ix2>, tol: f64) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `det`
[INFO] [stderr]   --> src/lu.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn det(a: &mut Array<f64, Ix2>, count_permute: usize) -> Option<f64> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 16 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::Float`
[INFO] [stderr]  --> src/cg.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use num::Float;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::Float`
[INFO] [stderr]  --> src/gs.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use num::Float;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::Float`
[INFO] [stderr]  --> src/jacobi.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use num::Float;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::Float`
[INFO] [stderr]  --> src/ssor.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use num::Float;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `alpha` is never read
[INFO] [stderr]   --> src/cg.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut alpha = 0.;
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `alpha` is never read
[INFO] [stderr]    --> src/cg.rs:105:9
[INFO] [stderr]     |
[INFO] [stderr] 105 |     let mut alpha = 0.;
[INFO] [stderr]     |         ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `det`
[INFO] [stderr]   --> src/lu.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn det(a: &mut Array<f64, Ix2>, count_permute: usize) -> Option<f64> {
[INFO] [stderr]    |        ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `permute`
[INFO] [stderr]    --> src/lu.rs:134:4
[INFO] [stderr]     |
[INFO] [stderr] 134 | fn permute(a: &mut Array<f64, Ix2>, p: &mut [usize]) {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/xapphire-69e7104e463ccead
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test lu::test_solve_lu ... ok
[INFO] [stderr]    Doc-tests xapphire
[INFO] [stdout] test gs::test_gs ... ok
[INFO] [stdout] test jacobi::test_jacobi ... ok
[INFO] [stdout] test cg::test_cg_0 ... ok
[INFO] [stdout] test cg::test_cg_precond_1 ... ok
[INFO] [stdout] test cg::test_cg_1 ... ok
[INFO] [stdout] test lu::test_solve_lu_underconstrained ... ok
[INFO] [stdout] test lu::test_lu_1 ... ok
[INFO] [stdout] test lu::test_solve_lu_util_singular ... ok
[INFO] [stdout] test lu::test_solve_lu_util_0 ... ok
[INFO] [stdout] test lu::test_lu_0 ... ok
[INFO] [stdout] test tests::test_crate ... ok
[INFO] [stdout] test ssor::test_ssor ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e2e1ceb6d1a6d3e780995ed94b792e60c9e227a34d9cee474a839a8b8e138d6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2e1ceb6d1a6d3e780995ed94b792e60c9e227a34d9cee474a839a8b8e138d6f", kill_on_drop: false }`
[INFO] [stdout] e2e1ceb6d1a6d3e780995ed94b792e60c9e227a34d9cee474a839a8b8e138d6f
