[INFO] fetching crate xapphire 0.1.0...
[INFO] testing xapphire-0.1.0 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] extracting crate xapphire 0.1.0 into /workspace/builds/worker-2-tc1/source
[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-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate xapphire 0.1.0 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages to latest compatible versions
[INFO] [stderr]       Adding ndarray v0.13.1 (available: v0.17.2)
[INFO] [stderr]       Adding num v0.3.1 (available: v0.4.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-bigint v0.3.3
[INFO] [stderr]   Downloaded matrixmultiply v0.2.4
[INFO] [stderr]   Downloaded ndarray v0.13.1
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1477de5407acc607ae68d1b80042c2fddc665e793fb25af90bd2844e430081fc
[INFO] running `Command { std: "docker" "start" "-a" "1477de5407acc607ae68d1b80042c2fddc665e793fb25af90bd2844e430081fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1477de5407acc607ae68d1b80042c2fddc665e793fb25af90bd2844e430081fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1477de5407acc607ae68d1b80042c2fddc665e793fb25af90bd2844e430081fc", kill_on_drop: false }`
[INFO] [stdout] 1477de5407acc607ae68d1b80042c2fddc665e793fb25af90bd2844e430081fc
[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=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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8dbf31fcd2ce6161ee1360a33a7c669ad2b16281102756183c64a1d5ca81a9fe
[INFO] running `Command { std: "docker" "start" "-a" "8dbf31fcd2ce6161ee1360a33a7c669ad2b16281102756183c64a1d5ca81a9fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]    Compiling matrixmultiply v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num v0.3.1
[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)]` (part of `#[warn(unused)]`) on by default
[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: 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: value assigned to `alpha` is never read
[INFO] [stdout]   --> src/cg.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut alpha = 0.;
[INFO] [stdout]    |                     ^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 35 |         alpha = (&r_new * &r_new).sum() / (&r * &r).sum();
[INFO] [stdout]    |         ------------------------------------------------- `alpha` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `alpha` is never read
[INFO] [stdout]    --> src/cg.rs:105:21
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let mut alpha = 0.;
[INFO] [stdout]     |                     ^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 113 |         alpha = (&q_new * &r_new).sum() / (&q * &r).sum();
[INFO] [stdout]     |         ------------------------------------------------- `alpha` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `det` is never used
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `permute` is never used
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.25s
[INFO] running `Command { std: "docker" "inspect" "8dbf31fcd2ce6161ee1360a33a7c669ad2b16281102756183c64a1d5ca81a9fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8dbf31fcd2ce6161ee1360a33a7c669ad2b16281102756183c64a1d5ca81a9fe", kill_on_drop: false }`
[INFO] [stdout] 8dbf31fcd2ce6161ee1360a33a7c669ad2b16281102756183c64a1d5ca81a9fe
[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=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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f46517462964137a9b62e859721c23d263b3232782c5f751178db0489d894ea3
[INFO] running `Command { std: "docker" "start" "-a" "f46517462964137a9b62e859721c23d263b3232782c5f751178db0489d894ea3", 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)]` (part of `#[warn(unused)]`) on by default
[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: 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: value assigned to `alpha` is never read
[INFO] [stdout]   --> src/cg.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut alpha = 0.;
[INFO] [stdout]    |                     ^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 35 |         alpha = (&r_new * &r_new).sum() / (&r * &r).sum();
[INFO] [stdout]    |         ------------------------------------------------- `alpha` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `alpha` is never read
[INFO] [stdout]    --> src/cg.rs:105:21
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let mut alpha = 0.;
[INFO] [stdout]     |                     ^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 113 |         alpha = (&q_new * &r_new).sum() / (&q * &r).sum();
[INFO] [stdout]     |         ------------------------------------------------- `alpha` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `det` is never used
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `permute` is never used
[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: 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)]` (part of `#[warn(unused)]`) 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/ssor.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: value assigned to `alpha` is never read
[INFO] [stdout]   --> src/cg.rs:28:21
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut alpha = 0.;
[INFO] [stdout]    |                     ^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 35 |         alpha = (&r_new * &r_new).sum() / (&r * &r).sum();
[INFO] [stdout]    |         ------------------------------------------------- `alpha` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[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)]` (part of `#[warn(unused)]`) on by default
[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)]` (part of `#[warn(unused)]`) 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: 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: value assigned to `alpha` is never read
[INFO] [stdout]    --> src/cg.rs:105:21
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let mut alpha = 0.;
[INFO] [stdout]     |                     ^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 113 |         alpha = (&q_new * &r_new).sum() / (&q * &r).sum();
[INFO] [stdout]     |         ------------------------------------------------- `alpha` is overwritten here before the previous value is read
[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: 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: function `arr2_eq_tol` is never used
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `det` is never used
[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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "f46517462964137a9b62e859721c23d263b3232782c5f751178db0489d894ea3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f46517462964137a9b62e859721c23d263b3232782c5f751178db0489d894ea3", kill_on_drop: false }`
[INFO] [stdout] f46517462964137a9b62e859721c23d263b3232782c5f751178db0489d894ea3
[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=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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d5e12dbe51414c23be6d10d55ecbc36b474a452770b1edcc8501bb3bd6a710b9
[INFO] running `Command { std: "docker" "start" "-a" "d5e12dbe51414c23be6d10d55ecbc36b474a452770b1edcc8501bb3bd6a710b9", 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)]` (part of `#[warn(unused)]`) on by default
[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: 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: value assigned to `alpha` is never read
[INFO] [stderr]   --> src/cg.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut alpha = 0.;
[INFO] [stderr]    |                     ^^ this value is reassigned later and never used
[INFO] [stderr] ...
[INFO] [stderr] 35 |         alpha = (&r_new * &r_new).sum() / (&r * &r).sum();
[INFO] [stderr]    |         ------------------------------------------------- `alpha` is overwritten here before the previous value is read
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `alpha` is never read
[INFO] [stderr]    --> src/cg.rs:105:21
[INFO] [stderr]     |
[INFO] [stderr] 105 |     let mut alpha = 0.;
[INFO] [stderr]     |                     ^^ this value is reassigned later and never used
[INFO] [stderr] ...
[INFO] [stderr] 113 |         alpha = (&q_new * &r_new).sum() / (&q * &r).sum();
[INFO] [stderr]     |         ------------------------------------------------- `alpha` is overwritten here before the previous value is read
[INFO] [stderr] 
[INFO] [stderr] warning: function `det` is never used
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `permute` is never used
[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: 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: 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)]` (part of `#[warn(unused)]`) on by default
[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)]` (part of `#[warn(unused)]`) 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: 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: 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: 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: function `arr2_eq_tol` is never used
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `det` is never used
[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: `xapphire` (lib) generated 8 warnings (run `cargo fix --lib -p xapphire` to apply 1 suggestion)
[INFO] [stderr] warning: `xapphire` (lib test) generated 16 warnings (6 duplicates) (run `cargo fix --lib -p xapphire --tests` to apply 7 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/xapphire-05a28e41102b0f28)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test cg::test_cg_0 ... ok
[INFO] [stdout] test cg::test_cg_1 ... ok
[INFO] [stdout] test lu::test_lu_0 ... ok
[INFO] [stdout] test cg::test_cg_precond_1 ... ok
[INFO] [stdout] test gs::test_gs ... ok
[INFO] [stdout] test jacobi::test_jacobi ... ok
[INFO] [stdout] test lu::test_lu_1 ... ok
[INFO] [stdout] test lu::test_solve_lu_underconstrained ... ok
[INFO] [stdout] test lu::test_solve_lu ... ok
[INFO] [stdout] test lu::test_solve_lu_util_0 ... ok
[INFO] [stdout] test tests::test_crate ... ok
[INFO] [stdout] test lu::test_solve_lu_util_singular ... 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; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests xapphire
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d5e12dbe51414c23be6d10d55ecbc36b474a452770b1edcc8501bb3bd6a710b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5e12dbe51414c23be6d10d55ecbc36b474a452770b1edcc8501bb3bd6a710b9", kill_on_drop: false }`
[INFO] [stdout] d5e12dbe51414c23be6d10d55ecbc36b474a452770b1edcc8501bb3bd6a710b9
