[INFO] fetching crate sparse21 0.2.1...
[INFO] checking sparse21-0.2.1 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate sparse21 0.2.1 into /workspace/builds/worker-101/source
[INFO] validating manifest of crates.io crate sparse21 0.2.1 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sparse21 0.2.1
[INFO] finished tweaking crates.io crate sparse21 0.2.1
[INFO] tweaked toml for crates.io crate sparse21 0.2.1 written to /workspace/builds/worker-101/source/Cargo.toml
[INFO] crate crates.io crate sparse21 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c32621bdf9fe5d747a1a8fb8c1cffb643bc8eae2e756c16ed3c521d5a7295626
[INFO] running `Command { std: "docker" "start" "-a" "c32621bdf9fe5d747a1a8fb8c1cffb643bc8eae2e756c16ed3c521d5a7295626", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c32621bdf9fe5d747a1a8fb8c1cffb643bc8eae2e756c16ed3c521d5a7295626", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c32621bdf9fe5d747a1a8fb8c1cffb643bc8eae2e756c16ed3c521d5a7295626", kill_on_drop: false }`
[INFO] [stdout] c32621bdf9fe5d747a1a8fb8c1cffb643bc8eae2e756c16ed3c521d5a7295626
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18170218106f24642599eeada865f99b1096406722d189deb3f1f89fcb86165a
[INFO] running `Command { std: "docker" "start" "-a" "18170218106f24642599eeada865f99b1096406722d189deb3f1f89fcb86165a", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking sparse21 v0.2.1 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stdout] warning: variable `num_ties` is assigned to, but never used
[INFO] [stdout]    --> src/lib.rs:674:17
[INFO] [stdout]     |
[INFO] [stdout] 674 |         let mut num_ties = 0;
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: consider using `_num_ties` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `linesize` is never read
[INFO] [stdout]    --> src/lib.rs:944:17
[INFO] [stdout]     |
[INFO] [stdout] 944 |         let mut linesize = f.read_line(&mut buffer)?;
[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: field is never read: `ax`
[INFO] [stdout]    --> src/lib.rs:176:5
[INFO] [stdout]     |
[INFO] [stdout] 176 |     ax: Axis,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `swap_cols`
[INFO] [stdout]    --> src/lib.rs:862:8
[INFO] [stdout]     |
[INFO] [stdout] 862 |     fn swap_cols(&mut self, x: usize, y: usize) { self.swap(COLS, x, y) }
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `title`
[INFO] [stdout]    --> src/lib.rs:913:5
[INFO] [stdout]     |
[INFO] [stdout] 913 |     title: Option<String>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `size`
[INFO] [stdout]    --> src/lib.rs:914:5
[INFO] [stdout]     |
[INFO] [stdout] 914 |     size: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `lt`
[INFO] [stdout]     --> src/lib.rs:1022:8
[INFO] [stdout]      |
[INFO] [stdout] 1022 |     fn lt(&self, other: T) { if self.val >= other { self.raise(); } }
[INFO] [stdout]      |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ge`
[INFO] [stdout]     --> src/lib.rs:1023:8
[INFO] [stdout]      |
[INFO] [stdout] 1023 |     fn ge(&self, other: T) { if self.val < other { self.raise(); } }
[INFO] [stdout]      |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `REL_THRESHOLD` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:625:13
[INFO] [stdout]     |
[INFO] [stdout] 625 |         let REL_THRESHOLD = 1e-3;
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: convert the identifier to snake case: `rel_threshold`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ABS_THRESHOLD` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:626:13
[INFO] [stdout]     |
[INFO] [stdout] 626 |         let ABS_THRESHOLD = 0.0;
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: convert the identifier to snake case: `abs_threshold`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `TIES_MULT` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:627:13
[INFO] [stdout]     |
[INFO] [stdout] 627 |         let TIES_MULT = 5;
[INFO] [stdout]     |             ^^^^^^^^^ help: convert the identifier to snake case: `ties_mult`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `REL_THRESHOLD` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:667:13
[INFO] [stdout]     |
[INFO] [stdout] 667 |         let REL_THRESHOLD = 1e-3;
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: convert the identifier to snake case: `rel_threshold`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ABS_THRESHOLD` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:668:13
[INFO] [stdout]     |
[INFO] [stdout] 668 |         let ABS_THRESHOLD = 0.0;
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: convert the identifier to snake case: `abs_threshold`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_TIES_MULT` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:669:13
[INFO] [stdout]     |
[INFO] [stdout] 669 |         let _TIES_MULT = 5;
[INFO] [stdout]     |             ^^^^^^^^^^ help: convert the identifier to snake case: `_ties_mult`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/lib.rs:1369:9
[INFO] [stdout]      |
[INFO] [stdout] 1369 |         m.lu_factorize();
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]        Fixed src/lib.rs (6 fixes)
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `num_ties` is assigned to, but never used
[INFO] [stdout]    --> src/lib.rs:674:17
[INFO] [stdout]     |
[INFO] [stdout] 674 |         let mut num_ties = 0;
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: consider using `_num_ties` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `linesize` is never read
[INFO] [stdout]    --> src/lib.rs:944:17
[INFO] [stdout]     |
[INFO] [stdout] 944 |         let mut linesize = f.read_line(&mut buffer)?;
[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: field is never read: `ax`
[INFO] [stdout]    --> src/lib.rs:176:5
[INFO] [stdout]     |
[INFO] [stdout] 176 |     ax: Axis,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `swap_rows`
[INFO] [stdout]    --> src/lib.rs:861:8
[INFO] [stdout]     |
[INFO] [stdout] 861 |     fn swap_rows(&mut self, x: usize, y: usize) { self.swap(ROWS, x, y) }
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `swap_cols`
[INFO] [stdout]    --> src/lib.rs:862:8
[INFO] [stdout]     |
[INFO] [stdout] 862 |     fn swap_cols(&mut self, x: usize, y: usize) { self.swap(COLS, x, y) }
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `size`
[INFO] [stdout]    --> src/lib.rs:865:8
[INFO] [stdout]     |
[INFO] [stdout] 865 |     fn size(&self) -> (usize, usize) { (self.num_rows(), self.num_cols()) }
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `title`
[INFO] [stdout]    --> src/lib.rs:913:5
[INFO] [stdout]     |
[INFO] [stdout] 913 |     title: Option<String>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `size`
[INFO] [stdout]    --> src/lib.rs:914:5
[INFO] [stdout]     |
[INFO] [stdout] 914 |     size: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `lt`
[INFO] [stdout]     --> src/lib.rs:1022:8
[INFO] [stdout]      |
[INFO] [stdout] 1022 |     fn lt(&self, other: T) { if self.val >= other { self.raise(); } }
[INFO] [stdout]      |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ge`
[INFO] [stdout]     --> src/lib.rs:1023:8
[INFO] [stdout]      |
[INFO] [stdout] 1023 |     fn ge(&self, other: T) { if self.val < other { self.raise(); } }
[INFO] [stdout]      |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `REL_THRESHOLD` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:625:13
[INFO] [stdout]     |
[INFO] [stdout] 625 |         let REL_THRESHOLD = 1e-3;
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: convert the identifier to snake case: `rel_threshold`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ABS_THRESHOLD` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:626:13
[INFO] [stdout]     |
[INFO] [stdout] 626 |         let ABS_THRESHOLD = 0.0;
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: convert the identifier to snake case: `abs_threshold`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `TIES_MULT` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:627:13
[INFO] [stdout]     |
[INFO] [stdout] 627 |         let TIES_MULT = 5;
[INFO] [stdout]     |             ^^^^^^^^^ help: convert the identifier to snake case: `ties_mult`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `REL_THRESHOLD` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:667:13
[INFO] [stdout]     |
[INFO] [stdout] 667 |         let REL_THRESHOLD = 1e-3;
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: convert the identifier to snake case: `rel_threshold`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ABS_THRESHOLD` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:668:13
[INFO] [stdout]     |
[INFO] [stdout] 668 |         let ABS_THRESHOLD = 0.0;
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: convert the identifier to snake case: `abs_threshold`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_TIES_MULT` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:669:13
[INFO] [stdout]     |
[INFO] [stdout] 669 |         let _TIES_MULT = 5;
[INFO] [stdout]     |             ^^^^^^^^^^ help: convert the identifier to snake case: `_ties_mult`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Migrating src/bin/sparse21.rs from 2018 edition to 2021
[INFO] [stderr]    Migrating tests/solve.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/bin/sparse21.rs (2 fixes)
[INFO] [stderr]        Fixed tests/solve.rs (3 fixes)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.97s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking sparse21 v0.2.1 (/tmp/fixit)
[INFO] [stdout] warning: variable `num_ties` is assigned to, but never used
[INFO] [stdout]    --> src/lib.rs:674:17
[INFO] [stdout]     |
[INFO] [stdout] 674 |         let mut num_ties = 0;
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: consider using `_num_ties` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `linesize` is never read
[INFO] [stdout]    --> src/lib.rs:944:17
[INFO] [stdout]     |
[INFO] [stdout] 944 |         let mut linesize = f.read_line(&mut buffer)?;
[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: variable `num_ties` is assigned to, but never used
[INFO] [stdout]    --> src/lib.rs:674:17
[INFO] [stdout]     |
[INFO] [stdout] 674 |         let mut num_ties = 0;
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]     = note: consider using `_num_ties` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `linesize` is never read
[INFO] [stdout]    --> src/lib.rs:944:17
[INFO] [stdout]     |
[INFO] [stdout] 944 |         let mut linesize = f.read_line(&mut buffer)?;
[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: field is never read: `ax`
[INFO] [stdout]    --> src/lib.rs:176:5
[INFO] [stdout]     |
[INFO] [stdout] 176 |     ax: Axis,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `swap_rows`
[INFO] [stdout]    --> src/lib.rs:861:8
[INFO] [stdout]     |
[INFO] [stdout] 861 |     fn swap_rows(&mut self, x: usize, y: usize) { self.swap(ROWS, x, y) }
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `swap_cols`
[INFO] [stdout]    --> src/lib.rs:862:8
[INFO] [stdout]     |
[INFO] [stdout] 862 |     fn swap_cols(&mut self, x: usize, y: usize) { self.swap(COLS, x, y) }
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `size`
[INFO] [stdout]    --> src/lib.rs:865:8
[INFO] [stdout]     |
[INFO] [stdout] 865 |     fn size(&self) -> (usize, usize) { (self.num_rows(), self.num_cols()) }
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `title`
[INFO] [stdout]    --> src/lib.rs:913:5
[INFO] [stdout]     |
[INFO] [stdout] 913 |     title: Option<String>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `size`
[INFO] [stdout]    --> src/lib.rs:914:5
[INFO] [stdout]     |
[INFO] [stdout] 914 |     size: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `lt`
[INFO] [stdout]     --> src/lib.rs:1022:8
[INFO] [stdout]      |
[INFO] [stdout] 1022 |     fn lt(&self, other: T) { if self.val >= other { self.raise(); } }
[INFO] [stdout]      |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ge`
[INFO] [stdout]     --> src/lib.rs:1023:8
[INFO] [stdout]      |
[INFO] [stdout] 1023 |     fn ge(&self, other: T) { if self.val < other { self.raise(); } }
[INFO] [stdout]      |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `REL_THRESHOLD` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:625:13
[INFO] [stdout]     |
[INFO] [stdout] 625 |         let REL_THRESHOLD = 1e-3;
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: convert the identifier to snake case: `rel_threshold`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ABS_THRESHOLD` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:626:13
[INFO] [stdout]     |
[INFO] [stdout] 626 |         let ABS_THRESHOLD = 0.0;
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: convert the identifier to snake case: `abs_threshold`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `TIES_MULT` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:627:13
[INFO] [stdout]     |
[INFO] [stdout] 627 |         let TIES_MULT = 5;
[INFO] [stdout]     |             ^^^^^^^^^ help: convert the identifier to snake case: `ties_mult`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `REL_THRESHOLD` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:667:13
[INFO] [stdout]     |
[INFO] [stdout] 667 |         let REL_THRESHOLD = 1e-3;
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: convert the identifier to snake case: `rel_threshold`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ABS_THRESHOLD` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:668:13
[INFO] [stdout]     |
[INFO] [stdout] 668 |         let ABS_THRESHOLD = 0.0;
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: convert the identifier to snake case: `abs_threshold`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_TIES_MULT` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:669:13
[INFO] [stdout]     |
[INFO] [stdout] 669 |         let _TIES_MULT = 5;
[INFO] [stdout]     |             ^^^^^^^^^^ help: convert the identifier to snake case: `_ties_mult`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ax`
[INFO] [stdout]    --> src/lib.rs:176:5
[INFO] [stdout]     |
[INFO] [stdout] 176 |     ax: Axis,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `swap_cols`
[INFO] [stdout]    --> src/lib.rs:862:8
[INFO] [stdout]     |
[INFO] [stdout] 862 |     fn swap_cols(&mut self, x: usize, y: usize) { self.swap(COLS, x, y) }
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `title`
[INFO] [stdout]    --> src/lib.rs:913:5
[INFO] [stdout]     |
[INFO] [stdout] 913 |     title: Option<String>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `size`
[INFO] [stdout]    --> src/lib.rs:914:5
[INFO] [stdout]     |
[INFO] [stdout] 914 |     size: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `lt`
[INFO] [stdout]     --> src/lib.rs:1022:8
[INFO] [stdout]      |
[INFO] [stdout] 1022 |     fn lt(&self, other: T) { if self.val >= other { self.raise(); } }
[INFO] [stdout]      |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ge`
[INFO] [stdout]     --> src/lib.rs:1023:8
[INFO] [stdout]      |
[INFO] [stdout] 1023 |     fn ge(&self, other: T) { if self.val < other { self.raise(); } }
[INFO] [stdout]      |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `REL_THRESHOLD` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:625:13
[INFO] [stdout]     |
[INFO] [stdout] 625 |         let REL_THRESHOLD = 1e-3;
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: convert the identifier to snake case: `rel_threshold`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ABS_THRESHOLD` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:626:13
[INFO] [stdout]     |
[INFO] [stdout] 626 |         let ABS_THRESHOLD = 0.0;
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: convert the identifier to snake case: `abs_threshold`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `TIES_MULT` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:627:13
[INFO] [stdout]     |
[INFO] [stdout] 627 |         let TIES_MULT = 5;
[INFO] [stdout]     |             ^^^^^^^^^ help: convert the identifier to snake case: `ties_mult`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `REL_THRESHOLD` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:667:13
[INFO] [stdout]     |
[INFO] [stdout] 667 |         let REL_THRESHOLD = 1e-3;
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: convert the identifier to snake case: `rel_threshold`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `ABS_THRESHOLD` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:668:13
[INFO] [stdout]     |
[INFO] [stdout] 668 |         let ABS_THRESHOLD = 0.0;
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: convert the identifier to snake case: `abs_threshold`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_TIES_MULT` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:669:13
[INFO] [stdout]     |
[INFO] [stdout] 669 |         let _TIES_MULT = 5;
[INFO] [stdout]     |             ^^^^^^^^^^ help: convert the identifier to snake case: `_ties_mult`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/lib.rs:1369:9
[INFO] [stdout]      |
[INFO] [stdout] 1369 |         m.lu_factorize();
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.02s
[INFO] running `Command { std: "docker" "inspect" "18170218106f24642599eeada865f99b1096406722d189deb3f1f89fcb86165a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18170218106f24642599eeada865f99b1096406722d189deb3f1f89fcb86165a", kill_on_drop: false }`
[INFO] [stdout] 18170218106f24642599eeada865f99b1096406722d189deb3f1f89fcb86165a