[INFO] fetching crate matrixnum 0.1.0... [INFO] testing matrixnum-0.1.0 against 1.60.0 for beta-1.61-1 [INFO] extracting crate matrixnum 0.1.0 into /workspace/builds/worker-3/source [INFO] validating manifest of crates.io crate matrixnum 0.1.0 on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate matrixnum 0.1.0 [INFO] finished tweaking crates.io crate matrixnum 0.1.0 [INFO] tweaked toml for crates.io crate matrixnum 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a20768aa680e6a89469ff56606124a94722393af91c9f3720dae2249403d5710 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "a20768aa680e6a89469ff56606124a94722393af91c9f3720dae2249403d5710", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a20768aa680e6a89469ff56606124a94722393af91c9f3720dae2249403d5710", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a20768aa680e6a89469ff56606124a94722393af91c9f3720dae2249403d5710", kill_on_drop: false }` [INFO] [stdout] a20768aa680e6a89469ff56606124a94722393af91c9f3720dae2249403d5710 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] b8fbc038749188f368bfb09fd6a83cfe0cb1fcbef3f3c6488805526932b5e9b7 [INFO] running `Command { std: "docker" "start" "-a" "b8fbc038749188f368bfb09fd6a83cfe0cb1fcbef3f3c6488805526932b5e9b7", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling assert_approx_eq v1.1.0 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling matrixnum v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #[macro_use] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/matrix_trait.rs:8:41 [INFO] [stdout] | [INFO] [stdout] 8 | fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> Self; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 8 - fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> Self; [INFO] [stdout] 8 + fn generate(m: usize, n: usize, f: &dyn Fn(usize, usize) -> f64) -> Self; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/matrix_trait.rs:15:23 [INFO] [stdout] | [INFO] [stdout] 15 | fn map(&self, f: &Fn(f64) -> f64) -> Self; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 15 - fn map(&self, f: &Fn(f64) -> f64) -> Self; [INFO] [stdout] 15 + fn map(&self, f: &dyn Fn(f64) -> f64) -> Self; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/basic.rs:23:41 [INFO] [stdout] | [INFO] [stdout] 23 | fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> BasicMatrix { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 23 - fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> BasicMatrix { [INFO] [stdout] 23 + fn generate(m: usize, n: usize, f: &dyn Fn(usize, usize) -> f64) -> BasicMatrix { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/basic.rs:104:23 [INFO] [stdout] | [INFO] [stdout] 104 | fn map(&self, f: &Fn(f64) -> f64) -> BasicMatrix { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 104 - fn map(&self, f: &Fn(f64) -> f64) -> BasicMatrix { [INFO] [stdout] 104 + fn map(&self, f: &dyn Fn(f64) -> f64) -> BasicMatrix { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.59s [INFO] running `Command { std: "docker" "inspect" "b8fbc038749188f368bfb09fd6a83cfe0cb1fcbef3f3c6488805526932b5e9b7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b8fbc038749188f368bfb09fd6a83cfe0cb1fcbef3f3c6488805526932b5e9b7", kill_on_drop: false }` [INFO] [stdout] b8fbc038749188f368bfb09fd6a83cfe0cb1fcbef3f3c6488805526932b5e9b7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 6331fa1568ba8e271e3e8de370c237cf4e792684d80e0c02a12aabaf265d433d [INFO] running `Command { std: "docker" "start" "-a" "6331fa1568ba8e271e3e8de370c237cf4e792684d80e0c02a12aabaf265d433d", kill_on_drop: false }` [INFO] [stderr] Compiling matrixnum v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #[macro_use] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/matrix_trait.rs:8:41 [INFO] [stdout] | [INFO] [stdout] 8 | fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> Self; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 8 - fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> Self; [INFO] [stdout] 8 + fn generate(m: usize, n: usize, f: &dyn Fn(usize, usize) -> f64) -> Self; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/matrix_trait.rs:15:23 [INFO] [stdout] | [INFO] [stdout] 15 | fn map(&self, f: &Fn(f64) -> f64) -> Self; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 15 - fn map(&self, f: &Fn(f64) -> f64) -> Self; [INFO] [stdout] 15 + fn map(&self, f: &dyn Fn(f64) -> f64) -> Self; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/basic.rs:23:41 [INFO] [stdout] | [INFO] [stdout] 23 | fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> BasicMatrix { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 23 - fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> BasicMatrix { [INFO] [stdout] 23 + fn generate(m: usize, n: usize, f: &dyn Fn(usize, usize) -> f64) -> BasicMatrix { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/basic.rs:104:23 [INFO] [stdout] | [INFO] [stdout] 104 | fn map(&self, f: &Fn(f64) -> f64) -> BasicMatrix { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 104 - fn map(&self, f: &Fn(f64) -> f64) -> BasicMatrix { [INFO] [stdout] 104 + fn map(&self, f: &dyn Fn(f64) -> f64) -> BasicMatrix { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/matrix_trait.rs:8:41 [INFO] [stdout] | [INFO] [stdout] 8 | fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> Self; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 8 - fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> Self; [INFO] [stdout] 8 + fn generate(m: usize, n: usize, f: &dyn Fn(usize, usize) -> f64) -> Self; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/matrix_trait.rs:15:23 [INFO] [stdout] | [INFO] [stdout] 15 | fn map(&self, f: &Fn(f64) -> f64) -> Self; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 15 - fn map(&self, f: &Fn(f64) -> f64) -> Self; [INFO] [stdout] 15 + fn map(&self, f: &dyn Fn(f64) -> f64) -> Self; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/basic.rs:23:41 [INFO] [stdout] | [INFO] [stdout] 23 | fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> BasicMatrix { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 23 - fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> BasicMatrix { [INFO] [stdout] 23 + fn generate(m: usize, n: usize, f: &dyn Fn(usize, usize) -> f64) -> BasicMatrix { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/basic.rs:104:23 [INFO] [stdout] | [INFO] [stdout] 104 | fn map(&self, f: &Fn(f64) -> f64) -> BasicMatrix { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 104 - fn map(&self, f: &Fn(f64) -> f64) -> BasicMatrix { [INFO] [stdout] 104 + fn map(&self, f: &dyn Fn(f64) -> f64) -> BasicMatrix { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.23s [INFO] running `Command { std: "docker" "inspect" "6331fa1568ba8e271e3e8de370c237cf4e792684d80e0c02a12aabaf265d433d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6331fa1568ba8e271e3e8de370c237cf4e792684d80e0c02a12aabaf265d433d", kill_on_drop: false }` [INFO] [stdout] 6331fa1568ba8e271e3e8de370c237cf4e792684d80e0c02a12aabaf265d433d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] d60f6194301dca07ffe59c54e264be2978b8aabec0b35cf9d0c2a4b70b2cb32c [INFO] running `Command { std: "docker" "start" "-a" "d60f6194301dca07ffe59c54e264be2978b8aabec0b35cf9d0c2a4b70b2cb32c", kill_on_drop: false }` [INFO] [stderr] warning: unused `#[macro_use]` import [INFO] [stderr] --> src/lib.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #[macro_use] [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/matrix_trait.rs:8:41 [INFO] [stderr] | [INFO] [stderr] 8 | fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> Self; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 8 - fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> Self; [INFO] [stderr] 8 + fn generate(m: usize, n: usize, f: &dyn Fn(usize, usize) -> f64) -> Self; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/matrix_trait.rs:15:23 [INFO] [stderr] | [INFO] [stderr] 15 | fn map(&self, f: &Fn(f64) -> f64) -> Self; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 15 - fn map(&self, f: &Fn(f64) -> f64) -> Self; [INFO] [stderr] 15 + fn map(&self, f: &dyn Fn(f64) -> f64) -> Self; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/basic.rs:23:41 [INFO] [stderr] | [INFO] [stderr] 23 | fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> BasicMatrix { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 23 - fn generate(m: usize, n: usize, f: &Fn(usize, usize) -> f64) -> BasicMatrix { [INFO] [stderr] 23 + fn generate(m: usize, n: usize, f: &dyn Fn(usize, usize) -> f64) -> BasicMatrix { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/basic.rs:104:23 [INFO] [stderr] | [INFO] [stderr] 104 | fn map(&self, f: &Fn(f64) -> f64) -> BasicMatrix { [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 104 - fn map(&self, f: &Fn(f64) -> f64) -> BasicMatrix { [INFO] [stderr] 104 + fn map(&self, f: &dyn Fn(f64) -> f64) -> BasicMatrix { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `matrixnum` (lib) generated 5 warnings [INFO] [stderr] warning: `matrixnum` (lib test) generated 4 warnings (4 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/matrixnum-594e9db951405700) [INFO] [stdout] running 9 tests [INFO] [stdout] test basic::tests::empty_matrix_test ... ok [INFO] [stdout] test basic::tests::random_mul_test1 ... ok [INFO] [stdout] test basic::tests::random_mul_test2 ... ok [INFO] [stdout] test basic::tests::transpose ... ok [INFO] [stdout] test basic::tests::random_matrix_get ... ok [INFO] [stdout] test basic::tests::random_mul_test4 ... ok [INFO] [stderr] Doc-tests matrixnum [INFO] [stdout] test basic::tests::random_mul_test3 ... ok [INFO] [stdout] test basic::tests::from_vec ... ok [INFO] [stdout] test basic::tests::random_matrix_test ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test src/basic.rs - basic::BasicMatrix::generate (line 14) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.49s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "d60f6194301dca07ffe59c54e264be2978b8aabec0b35cf9d0c2a4b70b2cb32c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d60f6194301dca07ffe59c54e264be2978b8aabec0b35cf9d0c2a4b70b2cb32c", kill_on_drop: false }` [INFO] [stdout] d60f6194301dca07ffe59c54e264be2978b8aabec0b35cf9d0c2a4b70b2cb32c