[INFO] cloning repository https://github.com/przemekbroda/rust-matrixes [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/przemekbroda/rust-matrixes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprzemekbroda%2Frust-matrixes", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprzemekbroda%2Frust-matrixes'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4641826be24b96d20cec2bd92b35a25c0169cebc [INFO] checking przemekbroda/rust-matrixes against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprzemekbroda%2Frust-matrixes" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/przemekbroda/rust-matrixes [INFO] finished tweaking git repo https://github.com/przemekbroda/rust-matrixes [INFO] tweaked toml for git repo https://github.com/przemekbroda/rust-matrixes written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/przemekbroda/rust-matrixes on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/przemekbroda/rust-matrixes 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 068c352b317e0f7b05ac2dd6914443691a22d40fb238b3077143812dcaea7108 [INFO] running `Command { std: "docker" "start" "-a" "068c352b317e0f7b05ac2dd6914443691a22d40fb238b3077143812dcaea7108", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "068c352b317e0f7b05ac2dd6914443691a22d40fb238b3077143812dcaea7108", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "068c352b317e0f7b05ac2dd6914443691a22d40fb238b3077143812dcaea7108", kill_on_drop: false }` [INFO] [stdout] 068c352b317e0f7b05ac2dd6914443691a22d40fb238b3077143812dcaea7108 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f374d2aa725876758a0a8cc90b51f8d292916635d577a8cbfcfab03da7522042 [INFO] running `Command { std: "docker" "start" "-a" "f374d2aa725876758a0a8cc90b51f8d292916635d577a8cbfcfab03da7522042", kill_on_drop: false }` [INFO] [stderr] Checking JustTesting v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around pattern [INFO] [stdout] --> src/matrix.rs:355:32 [INFO] [stdout] | [INFO] [stdout] 355 | for (result_chunk, (self_row_chunk)) in mul_result.chunks_mut(chunks).into_iter().zip(self_rows_chunks) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 355 - for (result_chunk, (self_row_chunk)) in mul_result.chunks_mut(chunks).into_iter().zip(self_rows_chunks) { [INFO] [stdout] 355 + for (result_chunk, self_row_chunk ) in mul_result.chunks_mut(chunks).into_iter().zip(self_rows_chunks) { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `AddMultiThreaded` and `SubMultiThreaded` [INFO] [stdout] --> src/main.rs:5:21 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::matrix::{AddMultiThreaded, Matrix, MulMultiThreaded, SubMultiThreaded}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/matrix.rs:29:12 [INFO] [stdout] | [INFO] [stdout] 28 | impl Matrix { [INFO] [stdout] | -------------------------- associated items in this implementation [INFO] [stdout] 29 | pub fn new(mut v: Vec>) -> Matrix { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 50 | pub fn new_with_zeros(rows: usize, cols: usize) -> Matrix { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 70 | pub fn identity_matrix(size: usize) -> Matrix { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 84 | pub fn can_add_to(&self, rhs: &Matrix) -> bool { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 88 | pub fn can_subtract_from(&self, rhs: &Matrix) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 92 | pub fn can_multiply_by(&self, rhs: &Matrix) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 96 | pub fn add_to(self, rhs: Matrix) -> Result, MatrixError> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 100 | pub fn subtract_from(self, rhs: Matrix) -> Result, MatrixError> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 104 | pub fn multiply_by(self, rhs: Matrix) -> Result, MatrixError> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 108 | pub fn multiply_by_scalar(&self, scalar: T) -> Matrix { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 134 | pub fn set_value(&mut self, row: usize, col: usize, value: T) -> Result<(), MatrixError> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 143 | pub fn set_value_with_modifier_function(&mut self, row: usize, col: usize, modifier: fn (T) -> T) -> Result<(), MatrixError> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 152 | pub fn grow_or_shrink(&mut self, rows: usize, cols: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 167 | pub fn cols(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 171 | pub fn rows(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `AddMultiThreaded` is never used [INFO] [stdout] --> src/matrix.rs:295:11 [INFO] [stdout] | [INFO] [stdout] 295 | pub trait AddMultiThreaded { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `SubMultiThreaded` is never used [INFO] [stdout] --> src/matrix.rs:315:11 [INFO] [stdout] | [INFO] [stdout] 315 | pub trait SubMultiThreaded { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `multithreaded_operation` is never used [INFO] [stdout] --> src/matrix.rs:377:4 [INFO] [stdout] | [INFO] [stdout] 377 | fn multithreaded_operation(matrix1: &Matrix, matrix2: &Matrix, threads: NonZero, operation: fn (T, T) -> T) -> M... [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `one` is never used [INFO] [stdout] --> src/one.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub trait One { [INFO] [stdout] | --- associated function in this trait [INFO] [stdout] 2 | fn one() -> V; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/matrix.rs:346:25 [INFO] [stdout] | [INFO] [stdout] 346 | message: "First matrix has to have same amount of rows as second matrix has columns".parse().unwrap() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `JustTesting` (bin "JustTesting") due to 1 previous error; 7 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unnecessary parentheses around pattern [INFO] [stdout] --> src/matrix.rs:355:32 [INFO] [stdout] | [INFO] [stdout] 355 | for (result_chunk, (self_row_chunk)) in mul_result.chunks_mut(chunks).into_iter().zip(self_rows_chunks) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 355 - for (result_chunk, (self_row_chunk)) in mul_result.chunks_mut(chunks).into_iter().zip(self_rows_chunks) { [INFO] [stdout] 355 + for (result_chunk, self_row_chunk ) in mul_result.chunks_mut(chunks).into_iter().zip(self_rows_chunks) { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `AddMultiThreaded` and `SubMultiThreaded` [INFO] [stdout] --> src/main.rs:5:21 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::matrix::{AddMultiThreaded, Matrix, MulMultiThreaded, SubMultiThreaded}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/matrix.rs:29:12 [INFO] [stdout] | [INFO] [stdout] 28 | impl Matrix { [INFO] [stdout] | -------------------------- associated items in this implementation [INFO] [stdout] 29 | pub fn new(mut v: Vec>) -> Matrix { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 50 | pub fn new_with_zeros(rows: usize, cols: usize) -> Matrix { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 70 | pub fn identity_matrix(size: usize) -> Matrix { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 84 | pub fn can_add_to(&self, rhs: &Matrix) -> bool { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 88 | pub fn can_subtract_from(&self, rhs: &Matrix) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 92 | pub fn can_multiply_by(&self, rhs: &Matrix) -> bool { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 96 | pub fn add_to(self, rhs: Matrix) -> Result, MatrixError> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 100 | pub fn subtract_from(self, rhs: Matrix) -> Result, MatrixError> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 104 | pub fn multiply_by(self, rhs: Matrix) -> Result, MatrixError> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 108 | pub fn multiply_by_scalar(&self, scalar: T) -> Matrix { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 134 | pub fn set_value(&mut self, row: usize, col: usize, value: T) -> Result<(), MatrixError> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 143 | pub fn set_value_with_modifier_function(&mut self, row: usize, col: usize, modifier: fn (T) -> T) -> Result<(), MatrixError> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 152 | pub fn grow_or_shrink(&mut self, rows: usize, cols: usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 167 | pub fn cols(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 171 | pub fn rows(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `AddMultiThreaded` is never used [INFO] [stdout] --> src/matrix.rs:295:11 [INFO] [stdout] | [INFO] [stdout] 295 | pub trait AddMultiThreaded { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `SubMultiThreaded` is never used [INFO] [stdout] --> src/matrix.rs:315:11 [INFO] [stdout] | [INFO] [stdout] 315 | pub trait SubMultiThreaded { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `multithreaded_operation` is never used [INFO] [stdout] --> src/matrix.rs:377:4 [INFO] [stdout] | [INFO] [stdout] 377 | fn multithreaded_operation(matrix1: &Matrix, matrix2: &Matrix, threads: NonZero, operation: fn (T, T) -> T) -> M... [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `one` is never used [INFO] [stdout] --> src/one.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub trait One { [INFO] [stdout] | --- associated function in this trait [INFO] [stdout] 2 | fn one() -> V; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/matrix.rs:346:25 [INFO] [stdout] | [INFO] [stdout] 346 | message: "First matrix has to have same amount of rows as second matrix has columns".parse().unwrap() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `JustTesting` (bin "JustTesting" test) due to 1 previous error; 7 warnings emitted [INFO] running `Command { std: "docker" "inspect" "f374d2aa725876758a0a8cc90b51f8d292916635d577a8cbfcfab03da7522042", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f374d2aa725876758a0a8cc90b51f8d292916635d577a8cbfcfab03da7522042", kill_on_drop: false }` [INFO] [stdout] f374d2aa725876758a0a8cc90b51f8d292916635d577a8cbfcfab03da7522042