[INFO] fetching crate extended_matrix 0.2.10...
[INFO] testing extended_matrix-0.2.10 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate extended_matrix 0.2.10 into /workspace/builds/worker-22/source
[INFO] validating manifest of crates.io crate extended_matrix 0.2.10 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate extended_matrix 0.2.10
[INFO] finished tweaking crates.io crate extended_matrix 0.2.10
[INFO] tweaked toml for crates.io crate extended_matrix 0.2.10 written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] crate crates.io crate extended_matrix 0.2.10 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 441d3579473cbc4c12ed266409500bc550b1e9c35e18a33cd6a8777cd4ee437c
[INFO] running `Command { std: "docker" "start" "-a" "441d3579473cbc4c12ed266409500bc550b1e9c35e18a33cd6a8777cd4ee437c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "441d3579473cbc4c12ed266409500bc550b1e9c35e18a33cd6a8777cd4ee437c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "441d3579473cbc4c12ed266409500bc550b1e9c35e18a33cd6a8777cd4ee437c", kill_on_drop: false }`
[INFO] [stdout] 441d3579473cbc4c12ed266409500bc550b1e9c35e18a33cd6a8777cd4ee437c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68f1e48bd84381509ba49aa933bd0e02a80bbc267caa7c98f49006764fc30757
[INFO] running `Command { std: "docker" "start" "-a" "68f1e48bd84381509ba49aa933bd0e02a80bbc267caa7c98f49006764fc30757", kill_on_drop: false }`
[INFO] [stderr]    Compiling extended_matrix v0.2.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `rows_number`
[INFO] [stdout]    --> src/basic_matrix/non_symmetric_matrix.rs:260:12
[INFO] [stdout]     |
[INFO] [stdout] 260 |     pub fn rows_number(&self) -> T
[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: `columns_number`
[INFO] [stdout]    --> src/basic_matrix/non_symmetric_matrix.rs:266:12
[INFO] [stdout]     |
[INFO] [stdout] 266 |     pub fn columns_number(&self) -> T
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `elements_indexes`
[INFO] [stdout]    --> src/basic_matrix/non_symmetric_matrix.rs:272:12
[INFO] [stdout]     |
[INFO] [stdout] 272 |     pub fn elements_indexes(&self) -> Vec<T>
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `elements_values`
[INFO] [stdout]    --> src/basic_matrix/non_symmetric_matrix.rs:278:12
[INFO] [stdout]     |
[INFO] [stdout] 278 |     pub fn elements_values(&self) -> Vec<V>
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rows_and_columns_number`
[INFO] [stdout]    --> src/basic_matrix/symmetric_matrix.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 |     pub fn rows_and_columns_number(&self) -> T
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `elements_indexes`
[INFO] [stdout]    --> src/basic_matrix/symmetric_matrix.rs:212:12
[INFO] [stdout]     |
[INFO] [stdout] 212 |     pub fn elements_indexes(&self) -> Vec<T>
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `elements_values`
[INFO] [stdout]    --> src/basic_matrix/symmetric_matrix.rs:218:12
[INFO] [stdout]     |
[INFO] [stdout] 218 |     pub fn elements_values(&self) -> Vec<V>
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `return_symmetric_matrix_struct`
[INFO] [stdout]   --> src/basic_matrix/functions.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn return_symmetric_matrix_struct<T, V>(boxed_struct: Box<dyn BasicMatrixTrait<T, V>>)
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `return_non_symmetric_matrix_struct`
[INFO] [stdout]   --> src/basic_matrix/functions.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn return_non_symmetric_matrix_struct<T, V>(boxed_struct: Box<dyn BasicMatrixTrait<T, V>>)
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "68f1e48bd84381509ba49aa933bd0e02a80bbc267caa7c98f49006764fc30757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68f1e48bd84381509ba49aa933bd0e02a80bbc267caa7c98f49006764fc30757", kill_on_drop: false }`
[INFO] [stdout] 68f1e48bd84381509ba49aa933bd0e02a80bbc267caa7c98f49006764fc30757
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4a9bd934889cf4f071a83e16e1cf3a648c42362f6bbd2b19c761feb659a41b1
[INFO] running `Command { std: "docker" "start" "-a" "d4a9bd934889cf4f071a83e16e1cf3a648c42362f6bbd2b19c761feb659a41b1", kill_on_drop: false }`
[INFO] [stdout] warning: associated function is never used: `rows_number`
[INFO] [stdout]    --> src/basic_matrix/non_symmetric_matrix.rs:260:12
[INFO] [stdout]     |
[INFO] [stdout] 260 |     pub fn rows_number(&self) -> T
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling extended_matrix v0.2.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `columns_number`
[INFO] [stdout]    --> src/basic_matrix/non_symmetric_matrix.rs:266:12
[INFO] [stdout]     |
[INFO] [stdout] 266 |     pub fn columns_number(&self) -> T
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `elements_indexes`
[INFO] [stdout]    --> src/basic_matrix/non_symmetric_matrix.rs:272:12
[INFO] [stdout]     |
[INFO] [stdout] 272 |     pub fn elements_indexes(&self) -> Vec<T>
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `elements_values`
[INFO] [stdout]    --> src/basic_matrix/non_symmetric_matrix.rs:278:12
[INFO] [stdout]     |
[INFO] [stdout] 278 |     pub fn elements_values(&self) -> Vec<V>
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rows_and_columns_number`
[INFO] [stdout]    --> src/basic_matrix/symmetric_matrix.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 |     pub fn rows_and_columns_number(&self) -> T
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `elements_indexes`
[INFO] [stdout]    --> src/basic_matrix/symmetric_matrix.rs:212:12
[INFO] [stdout]     |
[INFO] [stdout] 212 |     pub fn elements_indexes(&self) -> Vec<T>
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `elements_values`
[INFO] [stdout]    --> src/basic_matrix/symmetric_matrix.rs:218:12
[INFO] [stdout]     |
[INFO] [stdout] 218 |     pub fn elements_values(&self) -> Vec<V>
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `return_symmetric_matrix_struct`
[INFO] [stdout]   --> src/basic_matrix/functions.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn return_symmetric_matrix_struct<T, V>(boxed_struct: Box<dyn BasicMatrixTrait<T, V>>)
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `return_non_symmetric_matrix_struct`
[INFO] [stdout]   --> src/basic_matrix/functions.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn return_non_symmetric_matrix_struct<T, V>(boxed_struct: Box<dyn BasicMatrixTrait<T, V>>)
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rows_number`
[INFO] [stdout]    --> src/basic_matrix/non_symmetric_matrix.rs:260:12
[INFO] [stdout]     |
[INFO] [stdout] 260 |     pub fn rows_number(&self) -> T
[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: `columns_number`
[INFO] [stdout]    --> src/basic_matrix/non_symmetric_matrix.rs:266:12
[INFO] [stdout]     |
[INFO] [stdout] 266 |     pub fn columns_number(&self) -> T
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `elements_indexes`
[INFO] [stdout]    --> src/basic_matrix/non_symmetric_matrix.rs:272:12
[INFO] [stdout]     |
[INFO] [stdout] 272 |     pub fn elements_indexes(&self) -> Vec<T>
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `elements_values`
[INFO] [stdout]    --> src/basic_matrix/non_symmetric_matrix.rs:278:12
[INFO] [stdout]     |
[INFO] [stdout] 278 |     pub fn elements_values(&self) -> Vec<V>
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rows_and_columns_number`
[INFO] [stdout]    --> src/basic_matrix/symmetric_matrix.rs:206:12
[INFO] [stdout]     |
[INFO] [stdout] 206 |     pub fn rows_and_columns_number(&self) -> T
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `elements_indexes`
[INFO] [stdout]    --> src/basic_matrix/symmetric_matrix.rs:212:12
[INFO] [stdout]     |
[INFO] [stdout] 212 |     pub fn elements_indexes(&self) -> Vec<T>
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `elements_values`
[INFO] [stdout]    --> src/basic_matrix/symmetric_matrix.rs:218:12
[INFO] [stdout]     |
[INFO] [stdout] 218 |     pub fn elements_values(&self) -> Vec<V>
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `return_symmetric_matrix_struct`
[INFO] [stdout]   --> src/basic_matrix/functions.rs:40:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn return_symmetric_matrix_struct<T, V>(boxed_struct: Box<dyn BasicMatrixTrait<T, V>>)
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `return_non_symmetric_matrix_struct`
[INFO] [stdout]   --> src/basic_matrix/functions.rs:62:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | pub fn return_non_symmetric_matrix_struct<T, V>(boxed_struct: Box<dyn BasicMatrixTrait<T, V>>)
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "d4a9bd934889cf4f071a83e16e1cf3a648c42362f6bbd2b19c761feb659a41b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4a9bd934889cf4f071a83e16e1cf3a648c42362f6bbd2b19c761feb659a41b1", kill_on_drop: false }`
[INFO] [stdout] d4a9bd934889cf4f071a83e16e1cf3a648c42362f6bbd2b19c761feb659a41b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 31ac91c9f473f8a2304e9f3f8ae352f3fe49915fafde19eeadd3d1ebecdb64e5
[INFO] running `Command { std: "docker" "start" "-a" "31ac91c9f473f8a2304e9f3f8ae352f3fe49915fafde19eeadd3d1ebecdb64e5", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `rows_number`
[INFO] [stderr]    --> src/basic_matrix/non_symmetric_matrix.rs:260:12
[INFO] [stderr]     |
[INFO] [stderr] 260 |     pub fn rows_number(&self) -> T
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `columns_number`
[INFO] [stderr]    --> src/basic_matrix/non_symmetric_matrix.rs:266:12
[INFO] [stderr]     |
[INFO] [stderr] 266 |     pub fn columns_number(&self) -> T
[INFO] [stderr]     |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `elements_indexes`
[INFO] [stderr]    --> src/basic_matrix/non_symmetric_matrix.rs:272:12
[INFO] [stderr]     |
[INFO] [stderr] 272 |     pub fn elements_indexes(&self) -> Vec<T>
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `elements_values`
[INFO] [stderr]    --> src/basic_matrix/non_symmetric_matrix.rs:278:12
[INFO] [stderr]     |
[INFO] [stderr] 278 |     pub fn elements_values(&self) -> Vec<V>
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `rows_and_columns_number`
[INFO] [stderr]    --> src/basic_matrix/symmetric_matrix.rs:206:12
[INFO] [stderr]     |
[INFO] [stderr] 206 |     pub fn rows_and_columns_number(&self) -> T
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `elements_indexes`
[INFO] [stderr]    --> src/basic_matrix/symmetric_matrix.rs:212:12
[INFO] [stderr]     |
[INFO] [stderr] 212 |     pub fn elements_indexes(&self) -> Vec<T>
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `elements_values`
[INFO] [stderr]    --> src/basic_matrix/symmetric_matrix.rs:218:12
[INFO] [stderr]     |
[INFO] [stderr] 218 |     pub fn elements_values(&self) -> Vec<V>
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `return_symmetric_matrix_struct`
[INFO] [stderr]   --> src/basic_matrix/functions.rs:40:8
[INFO] [stderr]    |
[INFO] [stderr] 40 | pub fn return_symmetric_matrix_struct<T, V>(boxed_struct: Box<dyn BasicMatrixTrait<T, V>>)
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `return_non_symmetric_matrix_struct`
[INFO] [stderr]   --> src/basic_matrix/functions.rs:62:8
[INFO] [stderr]    |
[INFO] [stderr] 62 | pub fn return_non_symmetric_matrix_struct<T, V>(boxed_struct: Box<dyn BasicMatrixTrait<T, V>>)
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `extended_matrix` (lib) generated 9 warnings
[INFO] [stderr] warning: `extended_matrix` (lib test) generated 9 warnings (9 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/extended_matrix-76c846c60f1b753e)
[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] [stderr]    Doc-tests extended_matrix
[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" "31ac91c9f473f8a2304e9f3f8ae352f3fe49915fafde19eeadd3d1ebecdb64e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31ac91c9f473f8a2304e9f3f8ae352f3fe49915fafde19eeadd3d1ebecdb64e5", kill_on_drop: false }`
[INFO] [stdout] 31ac91c9f473f8a2304e9f3f8ae352f3fe49915fafde19eeadd3d1ebecdb64e5
