[INFO] cloning repository https://github.com/y-kitamu/numeric
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/y-kitamu/numeric" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fy-kitamu%2Fnumeric", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fy-kitamu%2Fnumeric'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e2f6f768d5ca55d0e0acc19c3bc9743ff866b65f
[INFO] checking y-kitamu/numeric against try#024378d9203a4009ed73d6db2681b88a8d74ce7a for pr-112160
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fy-kitamu%2Fnumeric" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/y-kitamu/numeric on toolchain 024378d9203a4009ed73d6db2681b88a8d74ce7a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/y-kitamu/numeric
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/y-kitamu/numeric
[INFO] tweaked toml for git repo https://github.com/y-kitamu/numeric written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/y-kitamu/numeric 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" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4552525df03524253e687e0e5a526f327ea150877599dfbe1393c64bfb254ead
[INFO] running `Command { std: "docker" "start" "-a" "4552525df03524253e687e0e5a526f327ea150877599dfbe1393c64bfb254ead", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "rm" "-f" "4552525df03524253e687e0e5a526f327ea150877599dfbe1393c64bfb254ead", kill_on_drop: false }`
[INFO] [stdout] 4552525df03524253e687e0e5a526f327ea150877599dfbe1393c64bfb254ead
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d45a50bbce0621a6fbd1fd7aaee94e84782996d4233dc7cbc2c90be84a9335e
[INFO] running `Command { std: "docker" "start" "-a" "0d45a50bbce0621a6fbd1fd7aaee94e84782996d4233dc7cbc2c90be84a9335e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]    Compiling num-bigint v0.4.2
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling anyhow v1.0.44
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking os_str_bytes v4.2.0
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.5
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking clap v3.0.0-beta.5
[INFO] [stderr]     Checking numerics v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `SVD` is never constructed
[INFO] [stdout]  --> src/linalg/svd.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct SVD<T>
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/linalg/svd.rs:24:12
[INFO] [stdout]     |
[INFO] [stdout] 20  | impl<T> SVD<T>
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 24  |     pub fn new(a: Matrix<T>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 48  |     fn decompose(&mut self, mut a: Matrix<T>) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 203 |     fn reorder(&mut self) {}
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 204 |
[INFO] [stdout] 205 |     pub fn solve(&self, b: &[T], x: &mut [T]) -> Result<()> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 231 |     pub fn solve_mat(&self, b: &Matrix<T>, x: &mut Matrix<T>) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 245 |     pub fn rank(&self) -> usize {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 255 |     pub fn nullity(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 265 |     pub fn range(&self) -> Matrix<T> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 280 |     pub fn nullspace(&self) -> Matrix<T> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/linalg/svd.rs:237:13
[INFO] [stdout]     |
[INFO] [stdout] 237 |             self.solve(&b.get_col(j), &mut tmp);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 237 |             let _ = self.solve(&b.get_col(j), &mut tmp);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> examples/interp2d.rs:57:56
[INFO] [stdout]    |
[INFO] [stdout] 57 |         if let Err(_) = std::fs::create_dir_all(out_dir.clone()) {
[INFO] [stdout]    |                                                        ^^^^^^^^ unnecessary method call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Path` does not implement `Clone`, so calling `clone` on `&Path` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[deny(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> examples/interp1d.rs:154:56
[INFO] [stdout]     |
[INFO] [stdout] 154 |         if let Err(_) = std::fs::create_dir_all(out_dir.clone()) {
[INFO] [stdout]     |                                                        ^^^^^^^^ unnecessary method call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `Path` does not implement `Clone`, so calling `clone` on `&Path` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[deny(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `numerics` (example "interp2d") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `numerics` (example "interp1d") due to 2 previous errors
[INFO] [stdout] warning: struct `SVD` is never constructed
[INFO] [stdout]  --> src/linalg/svd.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct SVD<T>
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/linalg/svd.rs:24:12
[INFO] [stdout]     |
[INFO] [stdout] 20  | impl<T> SVD<T>
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 24  |     pub fn new(a: Matrix<T>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 48  |     fn decompose(&mut self, mut a: Matrix<T>) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 203 |     fn reorder(&mut self) {}
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 204 |
[INFO] [stdout] 205 |     pub fn solve(&self, b: &[T], x: &mut [T]) -> Result<()> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 231 |     pub fn solve_mat(&self, b: &Matrix<T>, x: &mut Matrix<T>) -> Result<()> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 245 |     pub fn rank(&self) -> usize {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 255 |     pub fn nullity(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 265 |     pub fn range(&self) -> Matrix<T> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 280 |     pub fn nullspace(&self) -> Matrix<T> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_svd` is never used
[INFO] [stdout]    --> src/linalg/svd.rs:301:8
[INFO] [stdout]     |
[INFO] [stdout] 301 |     fn test_svd() {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/linalg/svd.rs:237:13
[INFO] [stdout]     |
[INFO] [stdout] 237 |             self.solve(&b.get_col(j), &mut tmp);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 237 |             let _ = self.solve(&b.get_col(j), &mut tmp);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0d45a50bbce0621a6fbd1fd7aaee94e84782996d4233dc7cbc2c90be84a9335e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d45a50bbce0621a6fbd1fd7aaee94e84782996d4233dc7cbc2c90be84a9335e", kill_on_drop: false }`
[INFO] [stdout] 0d45a50bbce0621a6fbd1fd7aaee94e84782996d4233dc7cbc2c90be84a9335e