[INFO] cloning repository https://github.com/dev-gm/matrices
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dev-gm/matrices" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdev-gm%2Fmatrices", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdev-gm%2Fmatrices'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c0c3b4ae8adf90a75711055d3c3fe6f88a050975
[INFO] checking dev-gm/matrices/c0c3b4ae8adf90a75711055d3c3fe6f88a050975 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdev-gm%2Fmatrices" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dev-gm/matrices on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dev-gm/matrices
[INFO] finished tweaking git repo https://github.com/dev-gm/matrices
[INFO] tweaked toml for git repo https://github.com/dev-gm/matrices written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dev-gm/matrices 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e3b73d0bc47087ff201a1a2556f2398d4fba9774331ee5933ee65adcdfd0089
[INFO] running `Command { std: "docker" "start" "-a" "4e3b73d0bc47087ff201a1a2556f2398d4fba9774331ee5933ee65adcdfd0089", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e3b73d0bc47087ff201a1a2556f2398d4fba9774331ee5933ee65adcdfd0089", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e3b73d0bc47087ff201a1a2556f2398d4fba9774331ee5933ee65adcdfd0089", kill_on_drop: false }`
[INFO] [stdout] 4e3b73d0bc47087ff201a1a2556f2398d4fba9774331ee5933ee65adcdfd0089
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9207a4a4670783ddd63fe179adae8ae707f2dbad9aa2cc71db3d858d645a823e
[INFO] running `Command { std: "docker" "start" "-a" "9207a4a4670783ddd63fe179adae8ae707f2dbad9aa2cc71db3d858d645a823e", kill_on_drop: false }`
[INFO] [stderr]     Checking math v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected `{`, found `}`
[INFO] [stdout]   --> src/matrix.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     }
[INFO] [stdout]    |     ^ expected `{`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected `{`, found `}`
[INFO] [stdout]   --> src/matrix.rs:73:5
[INFO] [stdout]    |
[INFO] [stdout] 73 |     }
[INFO] [stdout]    |     ^ expected `{`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected `;`, found `}`
[INFO] [stdout]   --> src/group.rs:11:64
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn identity(&self, key: OperationType) -> Option<Box<Self>>
[INFO] [stdout]    |                                                                ^ help: add `;` here
[INFO] [stdout] 12 | }
[INFO] [stdout]    | - unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected `;`, found `}`
[INFO] [stdout]   --> src/group.rs:11:64
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn identity(&self, key: OperationType) -> Option<Box<Self>>
[INFO] [stdout]    |                                                                ^ help: add `;` here
[INFO] [stdout] 12 | }
[INFO] [stdout]    | - unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]  --> src/matrix.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_into_inner)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be in the root module
[INFO] [stdout]  --> src/matrix.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_into_inner)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `zero` has an incompatible type for trait
[INFO] [stdout]   --> src/matrix.rs:70:23
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn zero(&self) -> Box<Self> {
[INFO] [stdout]    |                       ^^^^^^^^^ expected `Matrix<T>`, found `Box<Matrix<T>>`
[INFO] [stdout]    |
[INFO] [stdout] note: type in trait
[INFO] [stdout]   --> src/group.rs:7:23
[INFO] [stdout]    |
[INFO] [stdout] 7  |     fn zero(&self) -> Self; // self * zero() == zero() and self + zero() == self
[INFO] [stdout]    |                       ^^^^
[INFO] [stdout]    = note: expected signature `fn(&Matrix<_>) -> Matrix<_>`
[INFO] [stdout]               found signature `fn(&Matrix<_>) -> Box<Matrix<_>>`
[INFO] [stdout] help: change the output type to match the trait
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn zero(&self) -> Matrix<T> {
[INFO] [stdout]    |                       ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `operation` has an incompatible type for trait
[INFO] [stdout]   --> src/matrix.rs:75:48
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn operation(&self, key: OperationType) -> Option<(Operation<Self>, Box<Self>)> {
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `group::Operation<Matrix<T>>`, found `(Operation<Matrix<T>>, Box<...>)`
[INFO] [stdout]    |
[INFO] [stdout] note: type in trait
[INFO] [stdout]   --> src/group.rs:9:48
[INFO] [stdout]    |
[INFO] [stdout] 9  |     fn operation(&self, key: OperationType) -> Option<Operation<Self>>;
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: expected signature `fn(&Matrix<_>, group::OperationType) -> Option<group::Operation<Matrix<T>>>`
[INFO] [stdout]               found signature `fn(&Matrix<_>, group::OperationType) -> Option<(group::Operation<Matrix<T>>, Box<Matrix<T>>)>`
[INFO] [stdout] help: change the output type to match the trait
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn operation(&self, key: OperationType) -> Option<group::Operation<Matrix<T>>> {
[INFO] [stdout]    |                                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0046]: not all trait items implemented, missing: `empty`, `identity`
[INFO] [stdout]   --> src/matrix.rs:69:1
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl<T: Group + ops::Add<Output = T>> Group for Matrix<T> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `empty`, `identity` in implementation
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/group.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  |     fn empty() -> Self;
[INFO] [stdout]    |     ------------------- `empty` from trait
[INFO] [stdout] ...
[INFO] [stdout] 11 |     fn identity(&self, key: OperationType) -> Option<Box<Self>>
[INFO] [stdout]    |     ----------------------------------------------------------- `identity` from trait
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `zero` has an incompatible type for trait
[INFO] [stdout]   --> src/matrix.rs:70:23
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn zero(&self) -> Box<Self> {
[INFO] [stdout]    |                       ^^^^^^^^^ expected `Matrix<T>`, found `Box<Matrix<T>>`
[INFO] [stdout]    |
[INFO] [stdout] note: type in trait
[INFO] [stdout]   --> src/group.rs:7:23
[INFO] [stdout]    |
[INFO] [stdout] 7  |     fn zero(&self) -> Self; // self * zero() == zero() and self + zero() == self
[INFO] [stdout]    |                       ^^^^
[INFO] [stdout]    = note: expected signature `fn(&Matrix<_>) -> Matrix<_>`
[INFO] [stdout]               found signature `fn(&Matrix<_>) -> Box<Matrix<_>>`
[INFO] [stdout] help: change the output type to match the trait
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn zero(&self) -> Matrix<T> {
[INFO] [stdout]    |                       ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `operation` has an incompatible type for trait
[INFO] [stdout]   --> src/matrix.rs:75:48
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn operation(&self, key: OperationType) -> Option<(Operation<Self>, Box<Self>)> {
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `group::Operation<Matrix<T>>`, found `(Operation<Matrix<T>>, Box<...>)`
[INFO] [stdout]    |
[INFO] [stdout] note: type in trait
[INFO] [stdout]   --> src/group.rs:9:48
[INFO] [stdout]    |
[INFO] [stdout] 9  |     fn operation(&self, key: OperationType) -> Option<Operation<Self>>;
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    = note: expected signature `fn(&Matrix<_>, group::OperationType) -> Option<group::Operation<Matrix<T>>>`
[INFO] [stdout]               found signature `fn(&Matrix<_>, group::OperationType) -> Option<(group::Operation<Matrix<T>>, Box<Matrix<T>>)>`
[INFO] [stdout] help: change the output type to match the trait
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn operation(&self, key: OperationType) -> Option<group::Operation<Matrix<T>>> {
[INFO] [stdout]    |                                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0046]: not all trait items implemented, missing: `empty`, `identity`
[INFO] [stdout]   --> src/matrix.rs:69:1
[INFO] [stdout]    |
[INFO] [stdout] 69 | impl<T: Group + ops::Add<Output = T>> Group for Matrix<T> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `empty`, `identity` in implementation
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/group.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  |     fn empty() -> Self;
[INFO] [stdout]    |     ------------------- `empty` from trait
[INFO] [stdout] ...
[INFO] [stdout] 11 |     fn identity(&self, key: OperationType) -> Option<Box<Self>>
[INFO] [stdout]    |     ----------------------------------------------------------- `identity` from trait
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'box_into_inner'
[INFO] [stdout]   --> src/matrix.rs:23:32
[INFO] [stdout]    |
[INFO] [stdout] 23 |                 matrix[x].push(Box::into_inner(T::empty().operation(OperationType::Add)
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #80437 <https://github.com/rust-lang/rust/issues/80437> for more information
[INFO] [stdout]    = help: add `#![feature(box_into_inner)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'box_into_inner'
[INFO] [stdout]   --> src/matrix.rs:23:32
[INFO] [stdout]    |
[INFO] [stdout] 23 |                 matrix[x].push(Box::into_inner(T::empty().operation(OperationType::Add)
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #80437 <https://github.com/rust-lang/rust/issues/80437> for more information
[INFO] [stdout]    = help: add `#![feature(box_into_inner)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `1` on type `group::Operation<T>`
[INFO] [stdout]   --> src/matrix.rs:24:108
[INFO] [stdout]    |
[INFO] [stdout] 24 |                     .expect("Can't get addition identity for group that doesn't have addition operations").1));
[INFO] [stdout]    |                                                                                                            ^ unknown field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `1` on type `group::Operation<T>`
[INFO] [stdout]   --> src/matrix.rs:24:108
[INFO] [stdout]    |
[INFO] [stdout] 24 |                     .expect("Can't get addition identity for group that doesn't have addition operations").1));
[INFO] [stdout]    |                                                                                                            ^ unknown field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'box_into_inner'
[INFO] [stdout]   --> src/matrix.rs:36:36
[INFO] [stdout]    |
[INFO] [stdout] 36 |                     matrix[x].push(Box::into_inner(T::empty().operation(OperationType::Mul)
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #80437 <https://github.com/rust-lang/rust/issues/80437> for more information
[INFO] [stdout]    = help: add `#![feature(box_into_inner)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `1` on type `group::Operation<T>`
[INFO] [stdout]   --> src/matrix.rs:37:124
[INFO] [stdout]    |
[INFO] [stdout] 37 |                         .expect("Can't get multiplicative identity for group that doesn't have multiplication operations").1));
[INFO] [stdout]    |                                                                                                                            ^ unknown field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'box_into_inner'
[INFO] [stdout]   --> src/matrix.rs:36:36
[INFO] [stdout]    |
[INFO] [stdout] 36 |                     matrix[x].push(Box::into_inner(T::empty().operation(OperationType::Mul)
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #80437 <https://github.com/rust-lang/rust/issues/80437> for more information
[INFO] [stdout]    = help: add `#![feature(box_into_inner)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2024-09-17; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `1` on type `group::Operation<T>`
[INFO] [stdout]   --> src/matrix.rs:37:124
[INFO] [stdout]    |
[INFO] [stdout] 37 |                         .expect("Can't get multiplicative identity for group that doesn't have multiplication operations").1));
[INFO] [stdout]    |                                                                                                                            ^ unknown field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/matrix.rs:57:16
[INFO] [stdout]    |
[INFO] [stdout] 57 |         } else {}
[INFO] [stdout]    |                ^^ expected `Result<T, String>`, found `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<T, String>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/matrix.rs:57:16
[INFO] [stdout]    |
[INFO] [stdout] 57 |         } else {}
[INFO] [stdout]    |                ^^ expected `Result<T, String>`, found `()`
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<T, String>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/matrix.rs:75:48
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn operation(&self, key: OperationType) -> Option<(Operation<Self>, Box<Self>)> {
[INFO] [stdout]    |        ---------                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Option<(Operation<Matrix<T>>, ...)>`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Option<(group::Operation<Matrix<T>>, Box<Matrix<T>>)>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/matrix.rs:75:48
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn operation(&self, key: OperationType) -> Option<(Operation<Self>, Box<Self>)> {
[INFO] [stdout]    |        ---------                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Option<(Operation<Matrix<T>>, ...)>`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Option<(group::Operation<Matrix<T>>, Box<Matrix<T>>)>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `exp`
[INFO] [stdout]   --> src/matrix.rs:64:31
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn pow_checked(&self, exp: isize) -> Result<Self, String> {
[INFO] [stdout]    |                               ^^^ help: if this is intentional, prefix it with an underscore: `_exp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `exp`
[INFO] [stdout]   --> src/matrix.rs:64:31
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn pow_checked(&self, exp: isize) -> Result<Self, String> {
[INFO] [stdout]    |                               ^^^ help: if this is intentional, prefix it with an underscore: `_exp`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `self` as mutable, as it is not declared as mutable
[INFO] [stdout]    --> src/matrix.rs:103:21
[INFO] [stdout]     |
[INFO] [stdout] 103 |                     self[x][y] = self[x][y] + rhs[x][y];
[INFO] [stdout]     |                     ^^^^ cannot borrow as mutable
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]     |
[INFO] [stdout] 97  |     fn add(mut self, rhs: Self) -> Self::Output {
[INFO] [stdout]     |            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `self` as mutable, as it is not declared as mutable
[INFO] [stdout]    --> src/matrix.rs:103:21
[INFO] [stdout]     |
[INFO] [stdout] 103 |                     self[x][y] = self[x][y] + rhs[x][y];
[INFO] [stdout]     |                     ^^^^ cannot borrow as mutable
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]     |
[INFO] [stdout] 97  |     fn add(mut self, rhs: Self) -> Self::Output {
[INFO] [stdout]     |            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of index of `Vec<T>`
[INFO] [stdout]    --> src/matrix.rs:103:34
[INFO] [stdout]     |
[INFO] [stdout] 103 |                     self[x][y] = self[x][y] + rhs[x][y];
[INFO] [stdout]     |                                  ^^^^^^^^^^ move occurs because value has type `T`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] help: if `T` implemented `Clone`, you could clone the value
[INFO] [stdout]    --> src/matrix.rs:94:6
[INFO] [stdout]     |
[INFO] [stdout] 94  | impl<T: Group + ops::Add<Output = T>> ops::Add for Matrix<T> {
[INFO] [stdout]     |      ^ consider constraining this type parameter with `Clone`
[INFO] [stdout] ...
[INFO] [stdout] 103 |                     self[x][y] = self[x][y] + rhs[x][y];
[INFO] [stdout]     |                                  ---------- you could clone this value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of index of `Vec<T>`
[INFO] [stdout]    --> src/matrix.rs:103:34
[INFO] [stdout]     |
[INFO] [stdout] 103 |                     self[x][y] = self[x][y] + rhs[x][y];
[INFO] [stdout]     |                                  ^^^^^^^^^^ move occurs because value has type `T`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] help: if `T` implemented `Clone`, you could clone the value
[INFO] [stdout]    --> src/matrix.rs:94:6
[INFO] [stdout]     |
[INFO] [stdout] 94  | impl<T: Group + ops::Add<Output = T>> ops::Add for Matrix<T> {
[INFO] [stdout]     |      ^ consider constraining this type parameter with `Clone`
[INFO] [stdout] ...
[INFO] [stdout] 103 |                     self[x][y] = self[x][y] + rhs[x][y];
[INFO] [stdout]     |                                  ---------- you could clone this value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of index of `Vec<T>`
[INFO] [stdout]    --> src/matrix.rs:103:47
[INFO] [stdout]     |
[INFO] [stdout] 103 |                     self[x][y] = self[x][y] + rhs[x][y];
[INFO] [stdout]     |                                               ^^^^^^^^^ move occurs because value has type `T`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] help: if `T` implemented `Clone`, you could clone the value
[INFO] [stdout]    --> src/matrix.rs:94:6
[INFO] [stdout]     |
[INFO] [stdout] 94  | impl<T: Group + ops::Add<Output = T>> ops::Add for Matrix<T> {
[INFO] [stdout]     |      ^ consider constraining this type parameter with `Clone`
[INFO] [stdout] ...
[INFO] [stdout] 103 |                     self[x][y] = self[x][y] + rhs[x][y];
[INFO] [stdout]     |                                               --------- you could clone this value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of index of `Vec<T>`
[INFO] [stdout]    --> src/matrix.rs:103:47
[INFO] [stdout]     |
[INFO] [stdout] 103 |                     self[x][y] = self[x][y] + rhs[x][y];
[INFO] [stdout]     |                                               ^^^^^^^^^ move occurs because value has type `T`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] help: if `T` implemented `Clone`, you could clone the value
[INFO] [stdout]    --> src/matrix.rs:94:6
[INFO] [stdout]     |
[INFO] [stdout] 94  | impl<T: Group + ops::Add<Output = T>> ops::Add for Matrix<T> {
[INFO] [stdout]     |      ^ consider constraining this type parameter with `Clone`
[INFO] [stdout] ...
[INFO] [stdout] 103 |                     self[x][y] = self[x][y] + rhs[x][y];
[INFO] [stdout]     |                                               --------- you could clone this value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of `*self` which is behind a mutable reference
[INFO] [stdout]    --> src/matrix.rs:113:17
[INFO] [stdout]     |
[INFO] [stdout] 113 |         *self = *self + rhs;
[INFO] [stdout]     |                 ^^^^^------
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 `*self` moved due to usage in operator
[INFO] [stdout]     |                 move occurs because `*self` has type `Matrix<T>`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] note: calling this operator moves the left-hand side
[INFO] [stdout]    --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/ops/arith.rs:91:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of `*self` which is behind a mutable reference
[INFO] [stdout]    --> src/matrix.rs:113:17
[INFO] [stdout]     |
[INFO] [stdout] 113 |         *self = *self + rhs;
[INFO] [stdout]     |                 ^^^^^------
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 `*self` moved due to usage in operator
[INFO] [stdout]     |                 move occurs because `*self` has type `Matrix<T>`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] note: calling this operator moves the left-hand side
[INFO] [stdout]    --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/ops/arith.rs:91:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `self` as mutable, as it is not declared as mutable
[INFO] [stdout]    --> src/matrix.rs:126:21
[INFO] [stdout]     |
[INFO] [stdout] 126 |                     self[x][y] = self[x][y] - rhs[x][y];
[INFO] [stdout]     |                     ^^^^ cannot borrow as mutable
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]     |
[INFO] [stdout] 120 |     fn sub(mut self, rhs: Self) -> Self::Output {
[INFO] [stdout]     |            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `self` as mutable, as it is not declared as mutable
[INFO] [stdout]    --> src/matrix.rs:126:21
[INFO] [stdout]     |
[INFO] [stdout] 126 |                     self[x][y] = self[x][y] - rhs[x][y];
[INFO] [stdout]     |                     ^^^^ cannot borrow as mutable
[INFO] [stdout]     |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]     |
[INFO] [stdout] 120 |     fn sub(mut self, rhs: Self) -> Self::Output {
[INFO] [stdout]     |            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of index of `Vec<T>`
[INFO] [stdout]    --> src/matrix.rs:126:34
[INFO] [stdout]     |
[INFO] [stdout] 126 |                     self[x][y] = self[x][y] - rhs[x][y];
[INFO] [stdout]     |                                  ^^^^^^^^^^ move occurs because value has type `T`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] help: if `T` implemented `Clone`, you could clone the value
[INFO] [stdout]    --> src/matrix.rs:117:6
[INFO] [stdout]     |
[INFO] [stdout] 117 | impl<T: Group + ops::Sub<Output = T>> ops::Sub for Matrix<T> {
[INFO] [stdout]     |      ^ consider constraining this type parameter with `Clone`
[INFO] [stdout] ...
[INFO] [stdout] 126 |                     self[x][y] = self[x][y] - rhs[x][y];
[INFO] [stdout]     |                                  ---------- you could clone this value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of index of `Vec<T>`
[INFO] [stdout]    --> src/matrix.rs:126:34
[INFO] [stdout]     |
[INFO] [stdout] 126 |                     self[x][y] = self[x][y] - rhs[x][y];
[INFO] [stdout]     |                                  ^^^^^^^^^^ move occurs because value has type `T`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] help: if `T` implemented `Clone`, you could clone the value
[INFO] [stdout]    --> src/matrix.rs:117:6
[INFO] [stdout]     |
[INFO] [stdout] 117 | impl<T: Group + ops::Sub<Output = T>> ops::Sub for Matrix<T> {
[INFO] [stdout]     |      ^ consider constraining this type parameter with `Clone`
[INFO] [stdout] ...
[INFO] [stdout] 126 |                     self[x][y] = self[x][y] - rhs[x][y];
[INFO] [stdout]     |                                  ---------- you could clone this value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of index of `Vec<T>`
[INFO] [stdout]    --> src/matrix.rs:126:47
[INFO] [stdout]     |
[INFO] [stdout] 126 |                     self[x][y] = self[x][y] - rhs[x][y];
[INFO] [stdout]     |                                               ^^^^^^^^^ move occurs because value has type `T`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] help: if `T` implemented `Clone`, you could clone the value
[INFO] [stdout]    --> src/matrix.rs:117:6
[INFO] [stdout]     |
[INFO] [stdout] 117 | impl<T: Group + ops::Sub<Output = T>> ops::Sub for Matrix<T> {
[INFO] [stdout]     |      ^ consider constraining this type parameter with `Clone`
[INFO] [stdout] ...
[INFO] [stdout] 126 |                     self[x][y] = self[x][y] - rhs[x][y];
[INFO] [stdout]     |                                               --------- you could clone this value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of index of `Vec<T>`
[INFO] [stdout]    --> src/matrix.rs:126:47
[INFO] [stdout]     |
[INFO] [stdout] 126 |                     self[x][y] = self[x][y] - rhs[x][y];
[INFO] [stdout]     |                                               ^^^^^^^^^ move occurs because value has type `T`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] help: if `T` implemented `Clone`, you could clone the value
[INFO] [stdout]    --> src/matrix.rs:117:6
[INFO] [stdout]     |
[INFO] [stdout] 117 | impl<T: Group + ops::Sub<Output = T>> ops::Sub for Matrix<T> {
[INFO] [stdout]     |      ^ consider constraining this type parameter with `Clone`
[INFO] [stdout] ...
[INFO] [stdout] 126 |                     self[x][y] = self[x][y] - rhs[x][y];
[INFO] [stdout]     |                                               --------- you could clone this value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of `*self` which is behind a mutable reference
[INFO] [stdout]    --> src/matrix.rs:136:17
[INFO] [stdout]     |
[INFO] [stdout] 136 |         *self = *self - rhs;
[INFO] [stdout]     |                 ^^^^^------
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 `*self` moved due to usage in operator
[INFO] [stdout]     |                 move occurs because `*self` has type `Matrix<T>`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] note: calling this operator moves the left-hand side
[INFO] [stdout]    --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/ops/arith.rs:200:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of `*self` which is behind a mutable reference
[INFO] [stdout]    --> src/matrix.rs:136:17
[INFO] [stdout]     |
[INFO] [stdout] 136 |         *self = *self - rhs;
[INFO] [stdout]     |                 ^^^^^------
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 `*self` moved due to usage in operator
[INFO] [stdout]     |                 move occurs because `*self` has type `Matrix<T>`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] note: calling this operator moves the left-hand side
[INFO] [stdout]    --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/ops/arith.rs:200:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of index of `Vec<T>`
[INFO] [stdout]    --> src/matrix.rs:151:35
[INFO] [stdout]     |
[INFO] [stdout] 151 |                     let mut sum = self[row][0] * self[col][0];
[INFO] [stdout]     |                                   ^^^^^^^^^^^^ move occurs because value has type `T`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] help: if `T` implemented `Clone`, you could clone the value
[INFO] [stdout]    --> src/matrix.rs:140:6
[INFO] [stdout]     |
[INFO] [stdout] 140 | impl<T: Group + ops::Mul<Output = T> + ops::Add<Output = T>> ops::Mul for Matrix<T> {
[INFO] [stdout]     |      ^ consider constraining this type parameter with `Clone`
[INFO] [stdout] ...
[INFO] [stdout] 151 |                     let mut sum = self[row][0] * self[col][0];
[INFO] [stdout]     |                                   ------------ you could clone this value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of index of `Vec<T>`
[INFO] [stdout]    --> src/matrix.rs:151:35
[INFO] [stdout]     |
[INFO] [stdout] 151 |                     let mut sum = self[row][0] * self[col][0];
[INFO] [stdout]     |                                   ^^^^^^^^^^^^ move occurs because value has type `T`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] help: if `T` implemented `Clone`, you could clone the value
[INFO] [stdout]    --> src/matrix.rs:140:6
[INFO] [stdout]     |
[INFO] [stdout] 140 | impl<T: Group + ops::Mul<Output = T> + ops::Add<Output = T>> ops::Mul for Matrix<T> {
[INFO] [stdout]     |      ^ consider constraining this type parameter with `Clone`
[INFO] [stdout] ...
[INFO] [stdout] 151 |                     let mut sum = self[row][0] * self[col][0];
[INFO] [stdout]     |                                   ------------ you could clone this value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of index of `Vec<T>`
[INFO] [stdout]    --> src/matrix.rs:151:50
[INFO] [stdout]     |
[INFO] [stdout] 151 |                     let mut sum = self[row][0] * self[col][0];
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^ move occurs because value has type `T`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] help: if `T` implemented `Clone`, you could clone the value
[INFO] [stdout]    --> src/matrix.rs:140:6
[INFO] [stdout]     |
[INFO] [stdout] 140 | impl<T: Group + ops::Mul<Output = T> + ops::Add<Output = T>> ops::Mul for Matrix<T> {
[INFO] [stdout]     |      ^ consider constraining this type parameter with `Clone`
[INFO] [stdout] ...
[INFO] [stdout] 151 |                     let mut sum = self[row][0] * self[col][0];
[INFO] [stdout]     |                                                  ------------ you could clone this value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of index of `Vec<T>`
[INFO] [stdout]    --> src/matrix.rs:153:38
[INFO] [stdout]     |
[INFO] [stdout] 153 |                         sum = sum + (self[row][i] * self[col][i]);
[INFO] [stdout]     |                                      ^^^^^^^^^^^^ move occurs because value has type `T`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] help: if `T` implemented `Clone`, you could clone the value
[INFO] [stdout]    --> src/matrix.rs:140:6
[INFO] [stdout]     |
[INFO] [stdout] 140 | impl<T: Group + ops::Mul<Output = T> + ops::Add<Output = T>> ops::Mul for Matrix<T> {
[INFO] [stdout]     |      ^ consider constraining this type parameter with `Clone`
[INFO] [stdout] ...
[INFO] [stdout] 153 |                         sum = sum + (self[row][i] * self[col][i]);
[INFO] [stdout]     |                                      ------------ you could clone this value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of index of `Vec<T>`
[INFO] [stdout]    --> src/matrix.rs:151:50
[INFO] [stdout]     |
[INFO] [stdout] 151 |                     let mut sum = self[row][0] * self[col][0];
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^ move occurs because value has type `T`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] help: if `T` implemented `Clone`, you could clone the value
[INFO] [stdout]    --> src/matrix.rs:140:6
[INFO] [stdout]     |
[INFO] [stdout] 140 | impl<T: Group + ops::Mul<Output = T> + ops::Add<Output = T>> ops::Mul for Matrix<T> {
[INFO] [stdout]     |      ^ consider constraining this type parameter with `Clone`
[INFO] [stdout] ...
[INFO] [stdout] 151 |                     let mut sum = self[row][0] * self[col][0];
[INFO] [stdout]     |                                                  ------------ you could clone this value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of index of `Vec<T>`
[INFO] [stdout]    --> src/matrix.rs:153:53
[INFO] [stdout]     |
[INFO] [stdout] 153 |                         sum = sum + (self[row][i] * self[col][i]);
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^ move occurs because value has type `T`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] help: if `T` implemented `Clone`, you could clone the value
[INFO] [stdout]    --> src/matrix.rs:140:6
[INFO] [stdout]     |
[INFO] [stdout] 140 | impl<T: Group + ops::Mul<Output = T> + ops::Add<Output = T>> ops::Mul for Matrix<T> {
[INFO] [stdout]     |      ^ consider constraining this type parameter with `Clone`
[INFO] [stdout] ...
[INFO] [stdout] 153 |                         sum = sum + (self[row][i] * self[col][i]);
[INFO] [stdout]     |                                                     ------------ you could clone this value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of index of `Vec<T>`
[INFO] [stdout]    --> src/matrix.rs:153:38
[INFO] [stdout]     |
[INFO] [stdout] 153 |                         sum = sum + (self[row][i] * self[col][i]);
[INFO] [stdout]     |                                      ^^^^^^^^^^^^ move occurs because value has type `T`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] help: if `T` implemented `Clone`, you could clone the value
[INFO] [stdout]    --> src/matrix.rs:140:6
[INFO] [stdout]     |
[INFO] [stdout] 140 | impl<T: Group + ops::Mul<Output = T> + ops::Add<Output = T>> ops::Mul for Matrix<T> {
[INFO] [stdout]     |      ^ consider constraining this type parameter with `Clone`
[INFO] [stdout] ...
[INFO] [stdout] 153 |                         sum = sum + (self[row][i] * self[col][i]);
[INFO] [stdout]     |                                      ------------ you could clone this value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of `*self` which is behind a mutable reference
[INFO] [stdout]    --> src/matrix.rs:165:17
[INFO] [stdout]     |
[INFO] [stdout] 165 |         *self = *self * rhs;
[INFO] [stdout]     |                 ^^^^^------
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 `*self` moved due to usage in operator
[INFO] [stdout]     |                 move occurs because `*self` has type `Matrix<T>`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] note: calling this operator moves the left-hand side
[INFO] [stdout]    --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/ops/arith.rs:330:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of index of `Vec<T>`
[INFO] [stdout]    --> src/matrix.rs:153:53
[INFO] [stdout]     |
[INFO] [stdout] 153 |                         sum = sum + (self[row][i] * self[col][i]);
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^ move occurs because value has type `T`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] help: if `T` implemented `Clone`, you could clone the value
[INFO] [stdout]    --> src/matrix.rs:140:6
[INFO] [stdout]     |
[INFO] [stdout] 140 | impl<T: Group + ops::Mul<Output = T> + ops::Add<Output = T>> ops::Mul for Matrix<T> {
[INFO] [stdout]     |      ^ consider constraining this type parameter with `Clone`
[INFO] [stdout] ...
[INFO] [stdout] 153 |                         sum = sum + (self[row][i] * self[col][i]);
[INFO] [stdout]     |                                                     ------------ you could clone this value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of `*self` which is behind a mutable reference
[INFO] [stdout]    --> src/matrix.rs:183:17
[INFO] [stdout]     |
[INFO] [stdout] 183 |         *self = *self / rhs;
[INFO] [stdout]     |                 ^^^^^------
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 `*self` moved due to usage in operator
[INFO] [stdout]     |                 move occurs because `*self` has type `Matrix<T>`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] note: calling this operator moves the left-hand side
[INFO] [stdout]    --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/ops/arith.rs:464:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of `*self` which is behind a mutable reference
[INFO] [stdout]    --> src/matrix.rs:165:17
[INFO] [stdout]     |
[INFO] [stdout] 165 |         *self = *self * rhs;
[INFO] [stdout]     |                 ^^^^^------
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 `*self` moved due to usage in operator
[INFO] [stdout]     |                 move occurs because `*self` has type `Matrix<T>`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] note: calling this operator moves the left-hand side
[INFO] [stdout]    --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/ops/arith.rs:330:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of `*self` which is behind a mutable reference
[INFO] [stdout]    --> src/matrix.rs:183:17
[INFO] [stdout]     |
[INFO] [stdout] 183 |         *self = *self / rhs;
[INFO] [stdout]     |                 ^^^^^------
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 `*self` moved due to usage in operator
[INFO] [stdout]     |                 move occurs because `*self` has type `Matrix<T>`, which does not implement the `Copy` trait
[INFO] [stdout]     |
[INFO] [stdout] note: calling this operator moves the left-hand side
[INFO] [stdout]    --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/ops/arith.rs:464:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 25 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0046, E0053, E0308, E0507, E0596, E0609, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0046`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 25 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0046, E0053, E0308, E0507, E0596, E0609, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0046`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `math` (bin "math") due to 26 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `math` (bin "math" test) due to 26 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "9207a4a4670783ddd63fe179adae8ae707f2dbad9aa2cc71db3d858d645a823e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9207a4a4670783ddd63fe179adae8ae707f2dbad9aa2cc71db3d858d645a823e", kill_on_drop: false }`
[INFO] [stdout] 9207a4a4670783ddd63fe179adae8ae707f2dbad9aa2cc71db3d858d645a823e