[INFO] cloning repository https://github.com/aryan-regmi/smsolver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aryan-regmi/smsolver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faryan-regmi%2Fsmsolver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faryan-regmi%2Fsmsolver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fea6b455b05531bacb8568db86b7644fe227f855
[INFO] testing aryan-regmi/smsolver against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faryan-regmi%2Fsmsolver" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/aryan-regmi/smsolver
[INFO] finished tweaking git repo https://github.com/aryan-regmi/smsolver
[INFO] tweaked toml for git repo https://github.com/aryan-regmi/smsolver written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/aryan-regmi/smsolver on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/aryan-regmi/smsolver 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ba221e97a8c7da0b7d0dca804cc69a4b6f55ad02b1f844e0fad814f327d6d3b
[INFO] running `Command { std: "docker" "start" "-a" "6ba221e97a8c7da0b7d0dca804cc69a4b6f55ad02b1f844e0fad814f327d6d3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ba221e97a8c7da0b7d0dca804cc69a4b6f55ad02b1f844e0fad814f327d6d3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ba221e97a8c7da0b7d0dca804cc69a4b6f55ad02b1f844e0fad814f327d6d3b", kill_on_drop: false }`
[INFO] [stdout] 6ba221e97a8c7da0b7d0dca804cc69a4b6f55ad02b1f844e0fad814f327d6d3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3436eab48c4edfc9d46af9a97a2fb0b07484c21726d8066fbfff063c8e03a26d
[INFO] running `Command { std: "docker" "start" "-a" "3436eab48c4edfc9d46af9a97a2fb0b07484c21726d8066fbfff063c8e03a26d", kill_on_drop: false }`
[INFO] [stderr]    Compiling smsolver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/matrix.rs:490:13
[INFO] [stdout]     |
[INFO] [stdout] 490 |         let mut q = {
[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/matrix.rs:501:13
[INFO] [stdout]     |
[INFO] [stdout] 501 |         let mut r = self.clone();
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/matrix.rs:540:13
[INFO] [stdout]     |
[INFO] [stdout] 540 |         let x = r.inverse().mul::<M>(&q.transpose());
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]    --> src/matrix.rs:537:5
[INFO] [stdout]     |
[INFO] [stdout] 537 |     fn inverse(&self) -> Self {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] ...
[INFO] [stdout] 540 |         let x = r.inverse().mul::<M>(&q.transpose());
[INFO] [stdout]     |                 ----------- recursive call site
[INFO] [stdout]     |
[INFO] [stdout]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/matrix.rs:545:24
[INFO] [stdout]     |
[INFO] [stdout] 545 |     fn inverse_inplace(mut self) -> Self {
[INFO] [stdout]     |                        ----^^^^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mat`
[INFO] [stdout]    --> src/system.rs:240:25
[INFO] [stdout]     |
[INFO] [stdout] 240 |     fn qr_factorization(mat: Matrix) -> (Matrix, Matrix) {
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_mat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `q`
[INFO] [stdout]    --> src/system.rs:248:14
[INFO] [stdout]     |
[INFO] [stdout] 248 |         let (q, r) = System::qr_factorization(mat);
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_q`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/system.rs:248:17
[INFO] [stdout]     |
[INFO] [stdout] 248 |         let (q, r) = System::qr_factorization(mat);
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ncols`
[INFO] [stdout]    --> src/system.rs:257:13
[INFO] [stdout]     |
[INFO] [stdout] 257 |         let ncols = 2 * self.nodes.len();
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_ncols`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/system.rs:259:13
[INFO] [stdout]     |
[INFO] [stdout] 259 |         let a = self.a_matrix();
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/system.rs:260:13
[INFO] [stdout]     |
[INFO] [stdout] 260 |         let b = self.b_matrix()?;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "3436eab48c4edfc9d46af9a97a2fb0b07484c21726d8066fbfff063c8e03a26d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3436eab48c4edfc9d46af9a97a2fb0b07484c21726d8066fbfff063c8e03a26d", kill_on_drop: false }`
[INFO] [stdout] 3436eab48c4edfc9d46af9a97a2fb0b07484c21726d8066fbfff063c8e03a26d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9574c0751ba7e0002f747bb9dda98ebe897d2cbf3a9f0349494b9a8ab34b810
[INFO] running `Command { std: "docker" "start" "-a" "a9574c0751ba7e0002f747bb9dda98ebe897d2cbf3a9f0349494b9a8ab34b810", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling thiserror v1.0.56
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/matrix.rs:490:13
[INFO] [stdout]     |
[INFO] [stdout] 490 |         let mut q = {
[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/matrix.rs:501:13
[INFO] [stdout]     |
[INFO] [stdout] 501 |         let mut r = self.clone();
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/matrix.rs:540:13
[INFO] [stdout]     |
[INFO] [stdout] 540 |         let x = r.inverse().mul::<M>(&q.transpose());
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]    --> src/matrix.rs:537:5
[INFO] [stdout]     |
[INFO] [stdout] 537 |     fn inverse(&self) -> Self {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] ...
[INFO] [stdout] 540 |         let x = r.inverse().mul::<M>(&q.transpose());
[INFO] [stdout]     |                 ----------- recursive call site
[INFO] [stdout]     |
[INFO] [stdout]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/matrix.rs:545:24
[INFO] [stdout]     |
[INFO] [stdout] 545 |     fn inverse_inplace(mut self) -> Self {
[INFO] [stdout]     |                        ----^^^^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mat`
[INFO] [stdout]    --> src/system.rs:240:25
[INFO] [stdout]     |
[INFO] [stdout] 240 |     fn qr_factorization(mat: Matrix) -> (Matrix, Matrix) {
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_mat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `q`
[INFO] [stdout]    --> src/system.rs:248:14
[INFO] [stdout]     |
[INFO] [stdout] 248 |         let (q, r) = System::qr_factorization(mat);
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_q`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/system.rs:248:17
[INFO] [stdout]     |
[INFO] [stdout] 248 |         let (q, r) = System::qr_factorization(mat);
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ncols`
[INFO] [stdout]    --> src/system.rs:257:13
[INFO] [stdout]     |
[INFO] [stdout] 257 |         let ncols = 2 * self.nodes.len();
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_ncols`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/system.rs:259:13
[INFO] [stdout]     |
[INFO] [stdout] 259 |         let a = self.a_matrix();
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/system.rs:260:13
[INFO] [stdout]     |
[INFO] [stdout] 260 |         let b = self.b_matrix()?;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling thiserror-impl v1.0.56
[INFO] [stderr]    Compiling smsolver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/matrix.rs:490:13
[INFO] [stdout]     |
[INFO] [stdout] 490 |         let mut q = {
[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/matrix.rs:501:13
[INFO] [stdout]     |
[INFO] [stdout] 501 |         let mut r = self.clone();
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]    --> src/matrix.rs:540:13
[INFO] [stdout]     |
[INFO] [stdout] 540 |         let x = r.inverse().mul::<M>(&q.transpose());
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]    --> src/matrix.rs:537:5
[INFO] [stdout]     |
[INFO] [stdout] 537 |     fn inverse(&self) -> Self {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] ...
[INFO] [stdout] 540 |         let x = r.inverse().mul::<M>(&q.transpose());
[INFO] [stdout]     |                 ----------- recursive call site
[INFO] [stdout]     |
[INFO] [stdout]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/matrix.rs:545:24
[INFO] [stdout]     |
[INFO] [stdout] 545 |     fn inverse_inplace(mut self) -> Self {
[INFO] [stdout]     |                        ----^^^^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mat`
[INFO] [stdout]    --> src/system.rs:240:25
[INFO] [stdout]     |
[INFO] [stdout] 240 |     fn qr_factorization(mat: Matrix) -> (Matrix, Matrix) {
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_mat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `q`
[INFO] [stdout]    --> src/system.rs:248:14
[INFO] [stdout]     |
[INFO] [stdout] 248 |         let (q, r) = System::qr_factorization(mat);
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_q`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]    --> src/system.rs:248:17
[INFO] [stdout]     |
[INFO] [stdout] 248 |         let (q, r) = System::qr_factorization(mat);
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ncols`
[INFO] [stdout]    --> src/system.rs:257:13
[INFO] [stdout]     |
[INFO] [stdout] 257 |         let ncols = 2 * self.nodes.len();
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_ncols`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/system.rs:259:13
[INFO] [stdout]     |
[INFO] [stdout] 259 |         let a = self.a_matrix();
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/system.rs:260:13
[INFO] [stdout]     |
[INFO] [stdout] 260 |         let b = self.b_matrix()?;
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 25.19s
[INFO] running `Command { std: "docker" "inspect" "a9574c0751ba7e0002f747bb9dda98ebe897d2cbf3a9f0349494b9a8ab34b810", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9574c0751ba7e0002f747bb9dda98ebe897d2cbf3a9f0349494b9a8ab34b810", kill_on_drop: false }`
[INFO] [stdout] a9574c0751ba7e0002f747bb9dda98ebe897d2cbf3a9f0349494b9a8ab34b810
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d10a51b8a55c59bbf80b30e8e93787843f9bf0488404cd04850101bb5b9d0189
[INFO] running `Command { std: "docker" "start" "-a" "d10a51b8a55c59bbf80b30e8e93787843f9bf0488404cd04850101bb5b9d0189", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/matrix.rs:490:13
[INFO] [stderr]     |
[INFO] [stderr] 490 |         let mut q = {
[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/matrix.rs:501:13
[INFO] [stderr]     |
[INFO] [stderr] 501 |         let mut r = self.clone();
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/matrix.rs:540:13
[INFO] [stderr]     |
[INFO] [stderr] 540 |         let x = r.inverse().mul::<M>(&q.transpose());
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/matrix.rs:537:5
[INFO] [stderr]     |
[INFO] [stderr] 537 |     fn inverse(&self) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] ...
[INFO] [stderr] 540 |         let x = r.inverse().mul::<M>(&q.transpose());
[INFO] [stderr]     |                 ----------- recursive call site
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/matrix.rs:545:24
[INFO] [stderr]     |
[INFO] [stderr] 545 |     fn inverse_inplace(mut self) -> Self {
[INFO] [stderr]     |                        ----^^^^
[INFO] [stderr]     |                        |
[INFO] [stderr]     |                        help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mat`
[INFO] [stderr]    --> src/system.rs:240:25
[INFO] [stderr]     |
[INFO] [stderr] 240 |     fn qr_factorization(mat: Matrix) -> (Matrix, Matrix) {
[INFO] [stderr]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_mat`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `q`
[INFO] [stderr]    --> src/system.rs:248:14
[INFO] [stderr]     |
[INFO] [stderr] 248 |         let (q, r) = System::qr_factorization(mat);
[INFO] [stderr]     |              ^ help: if this is intentional, prefix it with an underscore: `_q`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r`
[INFO] [stderr]    --> src/system.rs:248:17
[INFO] [stderr]     |
[INFO] [stderr] 248 |         let (q, r) = System::qr_factorization(mat);
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ncols`
[INFO] [stderr]    --> src/system.rs:257:13
[INFO] [stderr]     |
[INFO] [stderr] 257 |         let ncols = 2 * self.nodes.len();
[INFO] [stderr]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_ncols`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/system.rs:259:13
[INFO] [stderr]     |
[INFO] [stderr] 259 |         let a = self.a_matrix();
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]    --> src/system.rs:260:13
[INFO] [stderr]     |
[INFO] [stderr] 260 |         let b = self.b_matrix()?;
[INFO] [stderr]     |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: `smsolver` (lib) generated 11 warnings (run `cargo fix --lib -p smsolver` to apply 3 suggestions)
[INFO] [stderr] warning: `smsolver` (lib test) generated 11 warnings (11 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/smsolver-6fd52140fdc1ace8)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test matrix::tests::can_init ... ok
[INFO] [stdout] test matrix::tests::can_mul ... ok
[INFO] [stdout] test matrix::tests::can_index ... ok
[INFO] [stdout] test matrix::tests::can_scale ... ok
[INFO] [stdout] test system::tests::can_create_system ... ok
[INFO] [stdout] test matrix::tests::can_inverse ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- matrix::tests::can_inverse stdout ----
[INFO] [stdout] [src/matrix.rs:691:9] &mat = Matrix<2, 2> [
[INFO] [stdout] 	[ 4  7 ]
[INFO] [stdout] 	[ 2  6 ]
[INFO] [stdout] ]
[INFO] [stdout] 
[INFO] [stdout] thread 'matrix::tests::can_inverse' panicked at src/matrix.rs:267:13:
[INFO] [stdout] IndexOutOfBounds: The index (0, 1) is out of bounds. The row and
[INFO] [stdout]                 column indicies must be less than 2 and 1 respectively.
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x60aff0ff0eb2 - std::backtrace_rs::backtrace::libunwind::trace::h73a647620bf1c49d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x60aff0ff0eb2 - std::backtrace_rs::backtrace::trace_unsynchronized::hd4d513ed96cb3cb1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x60aff0ff0eb2 - std::sys::backtrace::_print_fmt::h61bb95f7476aafa5
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x60aff0ff0eb2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha2e7e3a01df69042
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x60aff10169c3 - core::fmt::rt::Argument::fmt::hf14163372f0f9a76
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x60aff10169c3 - core::fmt::write::h7cb8f63788cd01d2
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/mod.rs:1465:25
[INFO] [stdout]    6:     0x60aff0fede43 - std::io::default_write_fmt::h9ed739ccee8a150c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x60aff0fede43 - std::io::Write::write_fmt::h1c0a32da913b32f1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x60aff0ff0d02 - std::sys::backtrace::BacktraceLock::print::h3ec4d7883eb25e61
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x60aff0ff241c - std::panicking::default_hook::{{closure}}::h29548987efd832cb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x60aff0ff2272 - std::panicking::default_hook::ha25170a15c643514
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x60aff0fba2b4 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h562adeecbf43c420
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x60aff0fba2b4 - test::test_main_with_exit_callback::{{closure}}::h97dd2a879d27e0e4
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x60aff0ff2dfb - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7e85cbdbda26fdb7
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x60aff0ff2dfb - std::panicking::rust_panic_with_hook::h0d81afcd829aa24b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x60aff0ff2bca - std::panicking::begin_panic_handler::{{closure}}::hc84a33f1202346cf
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:706:13
[INFO] [stdout]   16:     0x60aff0ff13a9 - std::sys::backtrace::__rust_end_short_backtrace::h373067a14f6c59aa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   17:     0x60aff0ff285d - __rustc[beb0385846a06d21]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x60aff1014af0 - core::panicking::panic_fmt::ha33fa2ae772efba9
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x60aff0f7e7b9 - smsolver::matrix::Matrix<_,_>::index_mut::h8eec47eee238b6c5
[INFO] [stdout]                                at /opt/rustwide/workdir/src/matrix.rs:267:13
[INFO] [stdout]   20:     0x60aff0f7e7b9 - smsolver::matrix::Matrix<_,_>::qr_factorization::hdde368a79dd455d7
[INFO] [stdout]                                at /opt/rustwide/workdir/src/matrix.rs:511:16
[INFO] [stdout]   21:     0x60aff0f7e7b9 - smsolver::matrix::Matrix<_,_>::inverse::h9e75031826d6faf7
[INFO] [stdout]                                at /opt/rustwide/workdir/src/matrix.rs:538:27
[INFO] [stdout]   22:     0x60aff0f7f659 - smsolver::matrix::tests::can_inverse::hc7b0cbd57af02cd7
[INFO] [stdout]                                at /opt/rustwide/workdir/src/matrix.rs:692:19
[INFO] [stdout]   23:     0x60aff0f7fef9 - smsolver::matrix::tests::can_inverse::{{closure}}::hdc88f3c1ab4261bf
[INFO] [stdout]                                at /opt/rustwide/workdir/src/matrix.rs:689:21
[INFO] [stdout]   24:     0x60aff0f7fef9 - core::ops::function::FnOnce::call_once::hd5de6e8b019b8034
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x60aff0fbf9eb - core::ops::function::FnOnce::call_once::hf84b9c3d864a6959
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x60aff0fbf9eb - test::__rust_begin_short_backtrace::h5724e31441c16fcb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:648:18
[INFO] [stdout]   27:     0x60aff0fbec2e - test::run_test_in_process::{{closure}}::hbc28c9aa91793d7d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:74
[INFO] [stdout]   28:     0x60aff0fbec2e - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc17b0e238c0f8f3e
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   29:     0x60aff0fbec2e - std::panicking::catch_unwind::do_call::hcdbce0d6dd6c83ce
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   30:     0x60aff0fbec2e - std::panicking::catch_unwind::h9477967ceea044e8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   31:     0x60aff0fbec2e - std::panic::catch_unwind::h616a2e249da12e16
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   32:     0x60aff0fbec2e - test::run_test_in_process::h2758deb0f2e54430
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:27
[INFO] [stdout]   33:     0x60aff0fbec2e - test::run_test::{{closure}}::habe5cd2564b18aaa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:592:43
[INFO] [stdout]   34:     0x60aff0f827d4 - test::run_test::{{closure}}::h9a0a6928f1a15421
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:622:41
[INFO] [stdout]   35:     0x60aff0f827d4 - std::sys::backtrace::__rust_begin_short_backtrace::hd68b5332434a22ca
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   36:     0x60aff0f8617a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h264ddcc3098eacae
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   37:     0x60aff0f8617a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9fa39489749d6f3c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   38:     0x60aff0f8617a - std::panicking::catch_unwind::do_call::hb9a1944b9f85100f
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   39:     0x60aff0f8617a - std::panicking::catch_unwind::h0c6f100786c0dad8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   40:     0x60aff0f8617a - std::panic::catch_unwind::hf6084e2723385823
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   41:     0x60aff0f8617a - std::thread::Builder::spawn_unchecked_::{{closure}}::hf0af58ce658143ad
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   42:     0x60aff0f8617a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h88a14f9b2e79f9de
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x60aff0ff5d57 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf31256ba38644b65
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   44:     0x60aff0ff5d57 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h100ad77f3448041b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   45:     0x60aff0ff5d57 - std::sys::pal::unix::thread::Thread::new::thread_start::h1a22ded422ce395b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/pal/unix/thread.rs:97:17
[INFO] [stdout]   46:     0x7cac99f4aaa4 - <unknown>
[INFO] [stdout]   47:     0x7cac99fd7a34 - clone
[INFO] [stdout]   48:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     matrix::tests::can_inverse
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 5 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "d10a51b8a55c59bbf80b30e8e93787843f9bf0488404cd04850101bb5b9d0189", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d10a51b8a55c59bbf80b30e8e93787843f9bf0488404cd04850101bb5b9d0189", kill_on_drop: false }`
[INFO] [stdout] d10a51b8a55c59bbf80b30e8e93787843f9bf0488404cd04850101bb5b9d0189
