[INFO] cloning repository https://github.com/frehrmann/rostig [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/frehrmann/rostig" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrehrmann%2Frostig", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrehrmann%2Frostig'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6433f381fefb6c606b9423bddf1868e6ff78d988 [INFO] checking frehrmann/rostig against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrehrmann%2Frostig" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/frehrmann/rostig on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/frehrmann/rostig [INFO] finished tweaking git repo https://github.com/frehrmann/rostig [INFO] tweaked toml for git repo https://github.com/frehrmann/rostig written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/frehrmann/rostig already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded itertools v0.7.11 [INFO] [stderr] Downloaded csv-core v0.1.5 [INFO] [stderr] Downloaded num-complex v0.2.1 [INFO] [stderr] Downloaded rawpointer v0.1.0 [INFO] [stderr] Downloaded ndarray v0.12.1 [INFO] [stderr] Downloaded libc v0.2.51 [INFO] [stderr] Downloaded matrixmultiply v0.1.15 [INFO] [stderr] Downloaded serde_derive v1.0.101 [INFO] [stderr] Downloaded syn v1.0.7 [INFO] [stderr] Downloaded csv v1.0.7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5ec31f5954b0ed1f1d6b51c8da9693c7c352d35235b6aaa207e7daf27a62b3bc [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" "5ec31f5954b0ed1f1d6b51c8da9693c7c352d35235b6aaa207e7daf27a62b3bc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5ec31f5954b0ed1f1d6b51c8da9693c7c352d35235b6aaa207e7daf27a62b3bc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5ec31f5954b0ed1f1d6b51c8da9693c7c352d35235b6aaa207e7daf27a62b3bc", kill_on_drop: false }` [INFO] [stdout] 5ec31f5954b0ed1f1d6b51c8da9693c7c352d35235b6aaa207e7daf27a62b3bc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 041044d74f358b58d5450c057b579e05a3ea8fc89fb534bbc181a55c7336b5c7 [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" "041044d74f358b58d5450c057b579e05a3ea8fc89fb534bbc181a55c7336b5c7", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Compiling libc v0.2.51 [INFO] [stderr] Compiling num-complex v0.2.1 [INFO] [stderr] Compiling matrixmultiply v0.1.15 [INFO] [stderr] Checking rawpointer v0.1.0 [INFO] [stderr] Compiling ndarray v0.12.1 [INFO] [stderr] Checking either v1.5.2 [INFO] [stderr] Checking itertools v0.7.11 [INFO] [stderr] Checking memchr v2.2.0 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking csv-core v0.1.5 [INFO] [stderr] Compiling syn v1.0.7 [INFO] [stderr] Compiling serde_derive v1.0.101 [INFO] [stderr] Checking serde v1.0.101 [INFO] [stderr] Checking toml v0.5.3 [INFO] [stderr] Checking csv v1.0.7 [INFO] [stderr] Checking rostig v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `arr1`, `arr2` [INFO] [stdout] --> src/adaline.rs:3:31 [INFO] [stdout] | [INFO] [stdout] 3 | use ndarray::{Array1, Array2, arr1, arr2}; [INFO] [stdout] | ^^^^ ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Array1`, `arr1`, `arr2` [INFO] [stdout] --> src/pre.rs:4:15 [INFO] [stdout] | [INFO] [stdout] 4 | use ndarray::{Array1, Array2, arr1, arr2}; [INFO] [stdout] | ^^^^^^ ^^^^ ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:41:51 [INFO] [stdout] | [INFO] [stdout] 41 | fn read_config(file: &Path) -> Result> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:49:52 [INFO] [stdout] | [INFO] [stdout] 49 | fn read_iris(file: &Path) -> Result, Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:92:75 [INFO] [stdout] | [INFO] [stdout] 92 | fn write(file: &Path, x: &Array2, y: &Array1) -> Result<(), Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Array1` [INFO] [stdout] --> src/pre.rs:4:15 [INFO] [stdout] | [INFO] [stdout] 4 | use ndarray::{Array1, Array2, arr1, arr2}; [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/main.rs:41:51 [INFO] [stdout] | [INFO] [stdout] 41 | fn read_config(file: &Path) -> Result> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:49:52 [INFO] [stdout] | [INFO] [stdout] 49 | fn read_iris(file: &Path) -> Result, Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:92:75 [INFO] [stdout] | [INFO] [stdout] 92 | fn write(file: &Path, x: &Array2, y: &Array1) -> Result<(), Box> { [INFO] [stdout] | ^^^^^ help: use `dyn`: `dyn Error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:136:60 [INFO] [stdout] | [INFO] [stdout] 136 | for (idx, c) in cost.iter().enumerate().filter(|&(idx, x)| idx % config.display.cost_every == 0 || idx > config.display.cost_detail) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:131:10 [INFO] [stdout] | [INFO] [stdout] 131 | let (mut NN, cost) = { [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `grad_num` [INFO] [stdout] --> src/adaline.rs:138:12 [INFO] [stdout] | [INFO] [stdout] 138 | pub fn grad_num(&mut self, inputs: &Array2, targets: &Array1) -> (Array1, f64) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `sepal_width` [INFO] [stdout] --> src/main.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | sepal_width: f64, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `petal_width` [INFO] [stdout] --> src/main.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | petal_width: f64, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/main.rs:136:60 [INFO] [stdout] | [INFO] [stdout] 136 | for (idx, c) in cost.iter().enumerate().filter(|&(idx, x)| idx % config.display.cost_every == 0 || idx > config.display.cost_detail) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:131:10 [INFO] [stdout] | [INFO] [stdout] 131 | let (mut NN, cost) = { [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:105:5 [INFO] [stdout] | [INFO] [stdout] 105 | writer.flush(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `NN` should have a snake case name [INFO] [stdout] --> src/main.rs:131:14 [INFO] [stdout] | [INFO] [stdout] 131 | let (mut NN, cost) = { [INFO] [stdout] | ^^ help: convert the identifier to snake case: `nn` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Npred` should have a snake case name [INFO] [stdout] --> src/main.rs:140:9 [INFO] [stdout] | [INFO] [stdout] 140 | let Npred = 21; [INFO] [stdout] | ^^^^^ help: convert the identifier to snake case: `npred` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `sepal_width` [INFO] [stdout] --> src/main.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | sepal_width: f64, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `petal_width` [INFO] [stdout] --> src/main.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | petal_width: f64, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:105:5 [INFO] [stdout] | [INFO] [stdout] 105 | writer.flush(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `NN` should have a snake case name [INFO] [stdout] --> src/main.rs:131:14 [INFO] [stdout] | [INFO] [stdout] 131 | let (mut NN, cost) = { [INFO] [stdout] | ^^ help: convert the identifier to snake case: `nn` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Npred` should have a snake case name [INFO] [stdout] --> src/main.rs:140:9 [INFO] [stdout] | [INFO] [stdout] 140 | let Npred = 21; [INFO] [stdout] | ^^^^^ help: convert the identifier to snake case: `npred` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 42.90s [INFO] running `Command { std: "docker" "inspect" "041044d74f358b58d5450c057b579e05a3ea8fc89fb534bbc181a55c7336b5c7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "041044d74f358b58d5450c057b579e05a3ea8fc89fb534bbc181a55c7336b5c7", kill_on_drop: false }` [INFO] [stdout] 041044d74f358b58d5450c057b579e05a3ea8fc89fb534bbc181a55c7336b5c7