[INFO] cloning repository https://github.com/dikotl/paal2-lab2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dikotl/paal2-lab2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdikotl%2Fpaal2-lab2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdikotl%2Fpaal2-lab2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4dc735e3d08265675da086747bde95d692adced9
[INFO] checking dikotl/paal2-lab2 against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdikotl%2Fpaal2-lab2" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dikotl/paal2-lab2
[INFO] finished tweaking git repo https://github.com/dikotl/paal2-lab2
[INFO] tweaked toml for git repo https://github.com/dikotl/paal2-lab2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dikotl/paal2-lab2 on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dikotl/paal2-lab2 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" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded either v1.15.0
[INFO] [stderr]   Downloaded itertools v0.14.0
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a58b01d70d98b10325d16cddfddc078e98f914b3a366966d574429a5705e0ad
[INFO] running `Command { std: "docker" "start" "-a" "0a58b01d70d98b10325d16cddfddc078e98f914b3a366966d574429a5705e0ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a58b01d70d98b10325d16cddfddc078e98f914b3a366966d574429a5705e0ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a58b01d70d98b10325d16cddfddc078e98f914b3a366966d574429a5705e0ad", kill_on_drop: false }`
[INFO] [stdout] 0a58b01d70d98b10325d16cddfddc078e98f914b3a366966d574429a5705e0ad
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d829fee650137b09092fb4f5025d7e47c5ee1a42ae3296acd1b27b4c8744fd4
[INFO] running `Command { std: "docker" "start" "-a" "4d829fee650137b09092fb4f5025d7e47c5ee1a42ae3296acd1b27b4c8744fd4", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking itertools v0.14.0
[INFO] [stderr]     Checking paal2-lab2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/matrix.rs:78:22
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn iter_rows(&self) -> slice::Iter<Vec<T>> {
[INFO] [stdout]    |                      ^^^^^     ------------------- the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn iter_rows(&self) -> slice::Iter<'_, Vec<T>> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/matrix.rs:78:22
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn iter_rows(&self) -> slice::Iter<Vec<T>> {
[INFO] [stdout]    |                      ^^^^^     ------------------- the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 78 |     pub fn iter_rows(&self) -> slice::Iter<'_, Vec<T>> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/matrix.rs:82:26
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn iter_rows_mut(&mut self) -> slice::IterMut<Vec<T>> {
[INFO] [stdout]    |                          ^^^^^^^^^     ---------------------- the same lifetime is hidden here
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn iter_rows_mut(&mut self) -> slice::IterMut<'_, Vec<T>> {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/matrix.rs:82:26
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn iter_rows_mut(&mut self) -> slice::IterMut<Vec<T>> {
[INFO] [stdout]    |                          ^^^^^^^^^     ---------------------- the same lifetime is hidden here
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn iter_rows_mut(&mut self) -> slice::IterMut<'_, Vec<T>> {
[INFO] [stdout]    |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/matrix.rs:86:26
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn iter_elements(&self) -> Flatten<slice::Iter<Vec<T>>> {
[INFO] [stdout]    |                          ^^^^^             ------------------- the same lifetime is hidden here
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn iter_elements(&self) -> Flatten<slice::Iter<'_, Vec<T>>> {
[INFO] [stdout]    |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/matrix.rs:90:30
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn iter_elements_mut(&mut self) -> Flatten<slice::IterMut<Vec<T>>> {
[INFO] [stdout]    |                              ^^^^^^^^^             ---------------------- the same lifetime is hidden here
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn iter_elements_mut(&mut self) -> Flatten<slice::IterMut<'_, Vec<T>>> {
[INFO] [stdout]    |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/matrix.rs:86:26
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn iter_elements(&self) -> Flatten<slice::Iter<Vec<T>>> {
[INFO] [stdout]    |                          ^^^^^             ------------------- the same lifetime is hidden here
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn iter_elements(&self) -> Flatten<slice::Iter<'_, Vec<T>>> {
[INFO] [stdout]    |                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/matrix.rs:94:26
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn iter_diagonal(&self, primary: bool) -> MatrixDiagonalIter<T> {
[INFO] [stdout]    |                          ^^^^^                    --------------------- the same lifetime is hidden here
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn iter_diagonal(&self, primary: bool) -> MatrixDiagonalIter<'_, T> {
[INFO] [stdout]    |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/matrix.rs:90:30
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn iter_elements_mut(&mut self) -> Flatten<slice::IterMut<Vec<T>>> {
[INFO] [stdout]    |                              ^^^^^^^^^             ---------------------- the same lifetime is hidden here
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn iter_elements_mut(&mut self) -> Flatten<slice::IterMut<'_, Vec<T>>> {
[INFO] [stdout]    |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/matrix.rs:102:30
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn iter_diagonal_mut(&mut self, primary: bool) -> MatrixDiagonalIterMut<T> {
[INFO] [stdout]     |                              ^^^^^^^^^                    ------------------------ the same lifetime is hidden here
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn iter_diagonal_mut(&mut self, primary: bool) -> MatrixDiagonalIterMut<'_, T> {
[INFO] [stdout]     |                                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/matrix.rs:110:25
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn iter_columns(&mut self) -> MatrixColumnsIter<T> {
[INFO] [stdout]     |                         ^^^^^^^^^     -------------------- the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn iter_columns(&mut self) -> MatrixColumnsIter<'_, T> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/matrix.rs:94:26
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn iter_diagonal(&self, primary: bool) -> MatrixDiagonalIter<T> {
[INFO] [stdout]    |                          ^^^^^                    --------------------- the same lifetime is hidden here
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn iter_diagonal(&self, primary: bool) -> MatrixDiagonalIter<'_, T> {
[INFO] [stdout]    |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/matrix.rs:117:29
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn iter_columns_mut(&mut self) -> MatrixColumnsIterMut<T> {
[INFO] [stdout]     |                             ^^^^^^^^^     ----------------------- the same lifetime is hidden here
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn iter_columns_mut(&mut self) -> MatrixColumnsIterMut<'_, T> {
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/matrix.rs:102:30
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn iter_diagonal_mut(&mut self, primary: bool) -> MatrixDiagonalIterMut<T> {
[INFO] [stdout]     |                              ^^^^^^^^^                    ------------------------ the same lifetime is hidden here
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn iter_diagonal_mut(&mut self, primary: bool) -> MatrixDiagonalIterMut<'_, T> {
[INFO] [stdout]     |                                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/matrix.rs:332:33
[INFO] [stdout]     |
[INFO] [stdout] 332 |             let item = unsafe { (*row).get_mut(self.column) };
[INFO] [stdout]     |                                 ^^---^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   this raw pointer has type `*mut [T]`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&mut [T]`
[INFO] [stdout]    --> src/matrix.rs:332:33
[INFO] [stdout]     |
[INFO] [stdout] 332 |             let item = unsafe { (*row).get_mut(self.column) };
[INFO] [stdout]     |                                 ^^^^^^
[INFO] [stdout] note: method calls to `get_mut` require a reference
[INFO] [stdout]    --> /rustc/82310651b93a594a3fd69015e1562186a080d94c/library/core/src/slice/mod.rs:599:5
[INFO] [stdout]     = note: `#[deny(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 332 |             let item = unsafe { (&mut (*row)).get_mut(self.column) };
[INFO] [stdout]     |                                 +++++       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/matrix.rs:110:25
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn iter_columns(&mut self) -> MatrixColumnsIter<T> {
[INFO] [stdout]     |                         ^^^^^^^^^     -------------------- the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn iter_columns(&mut self) -> MatrixColumnsIter<'_, T> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/matrix.rs:117:29
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn iter_columns_mut(&mut self) -> MatrixColumnsIterMut<T> {
[INFO] [stdout]     |                             ^^^^^^^^^     ----------------------- the same lifetime is hidden here
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub fn iter_columns_mut(&mut self) -> MatrixColumnsIterMut<'_, T> {
[INFO] [stdout]     |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]    --> src/matrix.rs:332:33
[INFO] [stdout]     |
[INFO] [stdout] 332 |             let item = unsafe { (*row).get_mut(self.column) };
[INFO] [stdout]     |                                 ^^---^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   this raw pointer has type `*mut [T]`
[INFO] [stdout]     |
[INFO] [stdout]     = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&mut [T]`
[INFO] [stdout]    --> src/matrix.rs:332:33
[INFO] [stdout]     |
[INFO] [stdout] 332 |             let item = unsafe { (*row).get_mut(self.column) };
[INFO] [stdout]     |                                 ^^^^^^
[INFO] [stdout] note: method calls to `get_mut` require a reference
[INFO] [stdout]    --> /rustc/82310651b93a594a3fd69015e1562186a080d94c/library/core/src/slice/mod.rs:599:5
[INFO] [stdout]     = note: `#[deny(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]     |
[INFO] [stdout] 332 |             let item = unsafe { (&mut (*row)).get_mut(self.column) };
[INFO] [stdout]     |                                 +++++       +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `paal2-lab2` (bin "paal2-lab2" test) due to 1 previous error; 8 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `paal2-lab2` (bin "paal2-lab2") due to 1 previous error; 8 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "4d829fee650137b09092fb4f5025d7e47c5ee1a42ae3296acd1b27b4c8744fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d829fee650137b09092fb4f5025d7e47c5ee1a42ae3296acd1b27b4c8744fd4", kill_on_drop: false }`
[INFO] [stdout] 4d829fee650137b09092fb4f5025d7e47c5ee1a42ae3296acd1b27b4c8744fd4
