[INFO] fetching crate matrixnum 0.1.0... [INFO] testing matrixnum-0.1.0 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041 [INFO] extracting crate matrixnum 0.1.0 into /workspace/builds/worker-11/source [INFO] validating manifest of crates.io crate matrixnum 0.1.0 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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-11/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e3838eb11121ff26f03999f88a341935cd2c100268b7994a39639325ac0fe694 [INFO] running `Command { std: "docker" "start" "-a" "e3838eb11121ff26f03999f88a341935cd2c100268b7994a39639325ac0fe694", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e3838eb11121ff26f03999f88a341935cd2c100268b7994a39639325ac0fe694", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e3838eb11121ff26f03999f88a341935cd2c100268b7994a39639325ac0fe694", kill_on_drop: false }` [INFO] [stdout] e3838eb11121ff26f03999f88a341935cd2c100268b7994a39639325ac0fe694 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ecb72ee1ddeb1b18f40ea3159dfdd4bfa9668accdaad0e6d1978c2eb731d542d [INFO] running `Command { std: "docker" "start" "-a" "ecb72ee1ddeb1b18f40ea3159dfdd4bfa9668accdaad0e6d1978c2eb731d542d", kill_on_drop: false }` [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] | ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize) -> f64` [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 issue #80165 [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] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [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 issue #80165 [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] | ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize) -> f64` [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 issue #80165 [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] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.87s [INFO] running `Command { std: "docker" "inspect" "ecb72ee1ddeb1b18f40ea3159dfdd4bfa9668accdaad0e6d1978c2eb731d542d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ecb72ee1ddeb1b18f40ea3159dfdd4bfa9668accdaad0e6d1978c2eb731d542d", kill_on_drop: false }` [INFO] [stdout] ecb72ee1ddeb1b18f40ea3159dfdd4bfa9668accdaad0e6d1978c2eb731d542d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 72f24110e94a46324470f66a59e9e38c79fd5d37dee4ffdfe45a99e0c8369620 [INFO] running `Command { std: "docker" "start" "-a" "72f24110e94a46324470f66a59e9e38c79fd5d37dee4ffdfe45a99e0c8369620", 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] | ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize) -> f64` [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 issue #80165 [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] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [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 issue #80165 [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] | ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize) -> f64` [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 issue #80165 [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] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [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 issue #80165 [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] | ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize) -> f64` [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 issue #80165 [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] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [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 issue #80165 [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] | ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize) -> f64` [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 issue #80165 [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] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [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 issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.83s [INFO] running `Command { std: "docker" "inspect" "72f24110e94a46324470f66a59e9e38c79fd5d37dee4ffdfe45a99e0c8369620", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "72f24110e94a46324470f66a59e9e38c79fd5d37dee4ffdfe45a99e0c8369620", kill_on_drop: false }` [INFO] [stdout] 72f24110e94a46324470f66a59e9e38c79fd5d37dee4ffdfe45a99e0c8369620 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] f1ca69dfa593902ab78b7431ab30d37d5814e1ddb1cc230a441706ce0092bf61 [INFO] running `Command { std: "docker" "start" "-a" "f1ca69dfa593902ab78b7431ab30d37d5814e1ddb1cc230a441706ce0092bf61", 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] | ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize) -> f64` [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 issue #80165 [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] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [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 issue #80165 [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] | ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize) -> f64` [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 issue #80165 [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] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [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 issue #80165 [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [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] | ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize) -> f64` [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 issue #80165 [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] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [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 issue #80165 [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] | ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, usize) -> f64` [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 issue #80165 [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] | ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64` [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 issue #80165 [INFO] [stderr] [INFO] [stderr] warning: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/matrixnum-4a4889804f7e2f38) [INFO] [stderr] Doc-tests matrixnum [INFO] [stdout] [INFO] [stdout] running 9 tests [INFO] [stdout] test basic::tests::empty_matrix_test ... ok [INFO] [stdout] test basic::tests::from_vec ... ok [INFO] [stdout] test basic::tests::random_mul_test2 ... ok [INFO] [stdout] test basic::tests::random_mul_test1 ... ok [INFO] [stdout] test basic::tests::random_mul_test4 ... ok [INFO] [stdout] test basic::tests::random_mul_test3 ... ok [INFO] [stdout] test basic::tests::transpose ... ok [INFO] [stdout] test basic::tests::random_matrix_test ... ok [INFO] [stdout] test basic::tests::random_matrix_get ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [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 0.33s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "f1ca69dfa593902ab78b7431ab30d37d5814e1ddb1cc230a441706ce0092bf61", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f1ca69dfa593902ab78b7431ab30d37d5814e1ddb1cc230a441706ce0092bf61", kill_on_drop: false }` [INFO] [stdout] f1ca69dfa593902ab78b7431ab30d37d5814e1ddb1cc230a441706ce0092bf61