[INFO] fetching crate numb_rs 0.0.4...
[INFO] checking numb_rs-0.0.4 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate numb_rs 0.0.4 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate numb_rs 0.0.4 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate numb_rs 0.0.4
[INFO] finished tweaking crates.io crate numb_rs 0.0.4
[INFO] tweaked toml for crates.io crate numb_rs 0.0.4 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 71 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding clap v2.34.0 (latest: v4.5.4)
[INFO] [stderr]       Adding criterion v0.3.6 (latest: v0.5.1)
[INFO] [stderr]       Adding criterion-plot v0.4.5 (latest: v0.5.0)
[INFO] [stderr]       Adding half v1.8.3 (latest: v2.4.1)
[INFO] [stderr]       Adding hermit-abi v0.1.19 (latest: v0.3.9)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding textwrap v0.11.0 (latest: v0.16.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce479fa1861fb773f8e8c146307fe322db0fda806e4017bd16989c22593f8f8f
[INFO] running `Command { std: "docker" "start" "-a" "ce479fa1861fb773f8e8c146307fe322db0fda806e4017bd16989c22593f8f8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce479fa1861fb773f8e8c146307fe322db0fda806e4017bd16989c22593f8f8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce479fa1861fb773f8e8c146307fe322db0fda806e4017bd16989c22593f8f8f", kill_on_drop: false }`
[INFO] [stdout] ce479fa1861fb773f8e8c146307fe322db0fda806e4017bd16989c22593f8f8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e2c5acca2941553c256cd408c3c221cf69aaa274b41ed9e888b94b3f4a7e0db
[INFO] running `Command { std: "docker" "start" "-a" "1e2c5acca2941553c256cd408c3c221cf69aaa274b41ed9e888b94b3f4a7e0db", kill_on_drop: false }`
[INFO] [stderr]     Checking numb_rs v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/dense.rs:226:13
[INFO] [stdout]     |
[INFO] [stdout] 226 |             /// a reference to the vector of the Matrix below
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 227 |             data: &self.data,
[INFO] [stdout]     |             ---------------- rustdoc does not generate documentation for expression fields
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/dense.rs:228:13
[INFO] [stdout]     |
[INFO] [stdout] 228 |             /// m is a reference to the 'n' column of the Matrix
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 229 |             m: &self.n,
[INFO] [stdout]     |             ---------- rustdoc does not generate documentation for expression fields
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/dense.rs:230:13
[INFO] [stdout]     |
[INFO] [stdout] 230 |             /// n is a reference to the 'm' column of the Matrix
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 231 |             n: &self.m,
[INFO] [stdout]     |             ---------- rustdoc does not generate documentation for expression fields
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::macros::*`
[INFO] [stdout]   --> src/lib.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub use crate::macros::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `m` and `n` are never read
[INFO] [stdout]    --> src/dense.rs:563:5
[INFO] [stdout]     |
[INFO] [stdout] 561 | pub struct DenseTranspose<'a, T: Numeric + 'a> {
[INFO] [stdout]     |            -------------- fields in this struct
[INFO] [stdout] 562 |     inner: &'a Dense<T>,
[INFO] [stdout] 563 |     m: usize,
[INFO] [stdout]     |     ^
[INFO] [stdout] 564 |     n: usize,
[INFO] [stdout]     |     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DenseTranspose` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `m` and `n` are never read
[INFO] [stdout]    --> src/dense.rs:570:5
[INFO] [stdout]     |
[INFO] [stdout] 568 | pub struct DenseTransposeMut<'a, T: Numeric + 'a> {
[INFO] [stdout]     |            ----------------- fields in this struct
[INFO] [stdout] 569 |     inner: &'a mut Dense<T>,
[INFO] [stdout] 570 |     m: usize,
[INFO] [stdout]     |     ^
[INFO] [stdout] 571 |     n: usize,
[INFO] [stdout]     |     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DenseTransposeMut` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[macro_use]` only has an effect on `extern crate` and modules
[INFO] [stdout]  --> benches/matrix_benchmark.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/dense.rs:226:13
[INFO] [stdout]     |
[INFO] [stdout] 226 |             /// a reference to the vector of the Matrix below
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 227 |             data: &self.data,
[INFO] [stdout]     |             ---------------- rustdoc does not generate documentation for expression fields
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/dense.rs:228:13
[INFO] [stdout]     |
[INFO] [stdout] 228 |             /// m is a reference to the 'n' column of the Matrix
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 229 |             m: &self.n,
[INFO] [stdout]     |             ---------- rustdoc does not generate documentation for expression fields
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/dense.rs:230:13
[INFO] [stdout]     |
[INFO] [stdout] 230 |             /// n is a reference to the 'm' column of the Matrix
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 231 |             n: &self.m,
[INFO] [stdout]     |             ---------- rustdoc does not generate documentation for expression fields
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/fraction.rs:25:48
[INFO] [stdout]     |
[INFO] [stdout] 25  |         Fraction::new($num as u32, $den as u32);
[INFO] [stdout]     |                                                ^
[INFO] [stdout] ...
[INFO] [stdout] 116 |         let half = frac32!(1, 2);
[INFO] [stdout]     |                    ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `frac32` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/fraction.rs:25:48
[INFO] [stdout]     |
[INFO] [stdout] 25  |         Fraction::new($num as u32, $den as u32);
[INFO] [stdout]     |                                                ^
[INFO] [stdout] ...
[INFO] [stdout] 123 |         let a = frac32!(132, 203);
[INFO] [stdout]     |                 ----------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `frac32` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/fraction.rs:25:48
[INFO] [stdout]     |
[INFO] [stdout] 25  |         Fraction::new($num as u32, $den as u32);
[INFO] [stdout]     |                                                ^
[INFO] [stdout] ...
[INFO] [stdout] 129 |         let a = frac32!(1, 2);
[INFO] [stdout]     |                 ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `frac32` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/fraction.rs:25:48
[INFO] [stdout]     |
[INFO] [stdout] 25  |         Fraction::new($num as u32, $den as u32);
[INFO] [stdout]     |                                                ^
[INFO] [stdout] ...
[INFO] [stdout] 130 |         let b = frac32!(1, 4);
[INFO] [stdout]     |                 ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `frac32` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/fraction.rs:25:48
[INFO] [stdout]     |
[INFO] [stdout] 25  |         Fraction::new($num as u32, $den as u32);
[INFO] [stdout]     |                                                ^
[INFO] [stdout] ...
[INFO] [stdout] 132 |         assert_eq!(a + b, frac32!(6, 8));
[INFO] [stdout]     |                           ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `frac32` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/fraction.rs:25:48
[INFO] [stdout]     |
[INFO] [stdout] 25  |         Fraction::new($num as u32, $den as u32);
[INFO] [stdout]     |                                                ^
[INFO] [stdout] ...
[INFO] [stdout] 137 |         let a = frac32!(1, 2);
[INFO] [stdout]     |                 ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `frac32` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/fraction.rs:25:48
[INFO] [stdout]     |
[INFO] [stdout] 25  |         Fraction::new($num as u32, $den as u32);
[INFO] [stdout]     |                                                ^
[INFO] [stdout] ...
[INFO] [stdout] 138 |         let b = frac32!(1, 4);
[INFO] [stdout]     |                 ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `frac32` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/fraction.rs:25:48
[INFO] [stdout]     |
[INFO] [stdout] 25  |         Fraction::new($num as u32, $den as u32);
[INFO] [stdout]     |                                                ^
[INFO] [stdout] ...
[INFO] [stdout] 140 |         assert_eq!(a - b, frac32!(2, 8));
[INFO] [stdout]     |                           ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `frac32` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/fraction.rs:25:48
[INFO] [stdout]     |
[INFO] [stdout] 25  |         Fraction::new($num as u32, $den as u32);
[INFO] [stdout]     |                                                ^
[INFO] [stdout] ...
[INFO] [stdout] 145 |         let a = frac32!(1, 2);
[INFO] [stdout]     |                 ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `frac32` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/fraction.rs:25:48
[INFO] [stdout]     |
[INFO] [stdout] 25  |         Fraction::new($num as u32, $den as u32);
[INFO] [stdout]     |                                                ^
[INFO] [stdout] ...
[INFO] [stdout] 146 |         let b = frac32!(2, 5);
[INFO] [stdout]     |                 ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `frac32` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/fraction.rs:25:48
[INFO] [stdout]     |
[INFO] [stdout] 25  |         Fraction::new($num as u32, $den as u32);
[INFO] [stdout]     |                                                ^
[INFO] [stdout] ...
[INFO] [stdout] 148 |         assert_eq!(a * b, frac32!(2, 10));
[INFO] [stdout]     |                           -------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `frac32` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/fraction.rs:25:48
[INFO] [stdout]     |
[INFO] [stdout] 25  |         Fraction::new($num as u32, $den as u32);
[INFO] [stdout]     |                                                ^
[INFO] [stdout] ...
[INFO] [stdout] 153 |         let a = frac32!(1, 2);
[INFO] [stdout]     |                 ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `frac32` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/fraction.rs:25:48
[INFO] [stdout]     |
[INFO] [stdout] 25  |         Fraction::new($num as u32, $den as u32);
[INFO] [stdout]     |                                                ^
[INFO] [stdout] ...
[INFO] [stdout] 154 |         let b = frac32!(1, 4);
[INFO] [stdout]     |                 ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `frac32` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/fraction.rs:25:48
[INFO] [stdout]     |
[INFO] [stdout] 25  |         Fraction::new($num as u32, $den as u32);
[INFO] [stdout]     |                                                ^
[INFO] [stdout] ...
[INFO] [stdout] 156 |         assert_eq!(a / b, frac32!(4, 2));
[INFO] [stdout]     |                           ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `frac32` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/fraction.rs:25:48
[INFO] [stdout]     |
[INFO] [stdout] 25  |         Fraction::new($num as u32, $den as u32);
[INFO] [stdout]     |                                                ^
[INFO] [stdout] ...
[INFO] [stdout] 161 |         let a = frac32!(157684, 511974);
[INFO] [stdout]     |                 ----------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `frac32` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/fraction.rs:25:48
[INFO] [stdout]     |
[INFO] [stdout] 25  |         Fraction::new($num as u32, $den as u32);
[INFO] [stdout]     |                                                ^
[INFO] [stdout] ...
[INFO] [stdout] 162 |         assert_eq!(a.reduce(), frac32!(158, 513))
[INFO] [stdout]     |                                ----------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]     = note: to ignore the value produced by the macro, add a semicolon after the invocation of `frac32`
[INFO] [stdout]     = note: this warning originates in the macro `frac32` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::macros::*`
[INFO] [stdout]   --> src/lib.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub use crate::macros::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `swap_rows` found for struct `numb_rs::Dense` in the current scope
[INFO] [stdout]    --> benches/matrix_benchmark.rs:13:50
[INFO] [stdout]     |
[INFO] [stdout] 13  |     c.bench_function("row swap", |b| b.iter(|| x.swap_rows(0, 2)));
[INFO] [stdout]     |                                                  ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/workdir/src/matrix.rs:64:8
[INFO] [stdout]     |
[INFO] [stdout] 64  |     fn swap_rows(&mut self, a: usize, b: usize);
[INFO] [stdout]     |        --------- the method is available for `numb_rs::Dense<{integer}>` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: there is a method `swap_mn` with a similar name, but with different arguments
[INFO] [stdout]    --> /opt/rustwide/workdir/src/dense.rs:183:5
[INFO] [stdout]     |
[INFO] [stdout] 183 |     pub fn swap_mn(&mut self) {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: trait `RowOps` which provides `swap_rows` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use numb_rs::matrix::RowOps;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `numb_rs` (bench "matrix_benchmark") due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: fields `m` and `n` are never read
[INFO] [stdout]    --> src/dense.rs:563:5
[INFO] [stdout]     |
[INFO] [stdout] 561 | pub struct DenseTranspose<'a, T: Numeric + 'a> {
[INFO] [stdout]     |            -------------- fields in this struct
[INFO] [stdout] 562 |     inner: &'a Dense<T>,
[INFO] [stdout] 563 |     m: usize,
[INFO] [stdout]     |     ^
[INFO] [stdout] 564 |     n: usize,
[INFO] [stdout]     |     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DenseTranspose` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `m` and `n` are never read
[INFO] [stdout]    --> src/dense.rs:570:5
[INFO] [stdout]     |
[INFO] [stdout] 568 | pub struct DenseTransposeMut<'a, T: Numeric + 'a> {
[INFO] [stdout]     |            ----------------- fields in this struct
[INFO] [stdout] 569 |     inner: &'a mut Dense<T>,
[INFO] [stdout] 570 |     m: usize,
[INFO] [stdout]     |     ^
[INFO] [stdout] 571 |     n: usize,
[INFO] [stdout]     |     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DenseTransposeMut` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/utilities.rs:100:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |         &a.assert_approx_eq(&b, 0.00005);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 100 |         let _ = &a.assert_approx_eq(&b, 0.00005);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/utilities.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |         &a.assert_approx_eq(&b, 0.00005);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 109 |         let _ = &a.assert_approx_eq(&b, 0.00005);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1e2c5acca2941553c256cd408c3c221cf69aaa274b41ed9e888b94b3f4a7e0db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e2c5acca2941553c256cd408c3c221cf69aaa274b41ed9e888b94b3f4a7e0db", kill_on_drop: false }`
[INFO] [stdout] 1e2c5acca2941553c256cd408c3c221cf69aaa274b41ed9e888b94b3f4a7e0db
