[INFO] cloning repository https://github.com/Givlucas/rs-mnist [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Givlucas/rs-mnist" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGivlucas%2Frs-mnist", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGivlucas%2Frs-mnist'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8ba87956eb87284e1ed3a3f9ac38239ae612984e [INFO] building Givlucas/rs-mnist against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGivlucas%2Frs-mnist" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Givlucas/rs-mnist on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Givlucas/rs-mnist [INFO] finished tweaking git repo https://github.com/Givlucas/rs-mnist [INFO] tweaked toml for git repo https://github.com/Givlucas/rs-mnist written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Givlucas/rs-mnist 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 15bb2b7036ee7ae873c1b2bc634b4895e012e15764fcf6e1c127bef8184e25b9 [INFO] running `Command { std: "docker" "start" "-a" "15bb2b7036ee7ae873c1b2bc634b4895e012e15764fcf6e1c127bef8184e25b9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "15bb2b7036ee7ae873c1b2bc634b4895e012e15764fcf6e1c127bef8184e25b9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "15bb2b7036ee7ae873c1b2bc634b4895e012e15764fcf6e1c127bef8184e25b9", kill_on_drop: false }` [INFO] [stdout] 15bb2b7036ee7ae873c1b2bc634b4895e012e15764fcf6e1c127bef8184e25b9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d9c1af4cae077c8b2849197da92fd4bb8fb02cbbee4b800bb8be744a0e7e7490 [INFO] running `Command { std: "docker" "start" "-a" "d9c1af4cae077c8b2849197da92fd4bb8fb02cbbee4b800bb8be744a0e7e7490", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.141 [INFO] [stderr] Compiling libm v0.2.6 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling ppv-lite86 v0.2.17 [INFO] [stderr] Compiling rawpointer v0.2.1 [INFO] [stderr] Compiling matrixmultiply v0.3.2 [INFO] [stderr] Compiling getrandom v0.2.9 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling num-complex v0.4.3 [INFO] [stderr] Compiling ndarray v0.15.6 [INFO] [stderr] Compiling rand_distr v0.4.3 [INFO] [stderr] Compiling ndarray-rand v0.14.0 [INFO] [stderr] Compiling rs-mnist v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:51:13 [INFO] [stdout] | [INFO] [stdout] 51 | for i in 0..epochs { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `batch` [INFO] [stdout] --> src/main.rs:61:15 [INFO] [stdout] | [INFO] [stdout] 61 | fn update(batch: &[(Arr, Arr)], eta: u32) {} [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_batch` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `eta` [INFO] [stdout] --> src/main.rs:61:37 [INFO] [stdout] | [INFO] [stdout] 61 | fn update(batch: &[(Arr, Arr)], eta: u32) {} [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_eta` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:65:9 [INFO] [stdout] | [INFO] [stdout] 65 | let mut test = Network::new(vec![2, 3, 5]); [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: type alias `Arr` is never used [INFO] [stdout] --> src/main.rs:7:6 [INFO] [stdout] | [INFO] [stdout] 7 | type Arr = Array>; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `num_layers` and `size` are never read [INFO] [stdout] --> src/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct Network { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 10 | num_layers: u32, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 11 | size: Vec, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `SGD` and `update` are never used [INFO] [stdout] --> src/main.rs:50:8 [INFO] [stdout] | [INFO] [stdout] 16 | impl Network { [INFO] [stdout] | ------------ associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 50 | fn SGD(self, train_set: &mut Vec<(Arr, Arr)>, eta: u32, batch_size: usize, epochs: u32) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 61 | fn update(batch: &[(Arr, Arr)], eta: u32) {} [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `SGD` should have a snake case name [INFO] [stdout] --> src/main.rs:50:8 [INFO] [stdout] | [INFO] [stdout] 50 | fn SGD(self, train_set: &mut Vec<(Arr, Arr)>, eta: u32, batch_size: usize, epochs: u32) { [INFO] [stdout] | ^^^ help: convert the identifier to snake case: `sgd` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.84s [INFO] running `Command { std: "docker" "inspect" "d9c1af4cae077c8b2849197da92fd4bb8fb02cbbee4b800bb8be744a0e7e7490", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d9c1af4cae077c8b2849197da92fd4bb8fb02cbbee4b800bb8be744a0e7e7490", kill_on_drop: false }` [INFO] [stdout] d9c1af4cae077c8b2849197da92fd4bb8fb02cbbee4b800bb8be744a0e7e7490 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3812bf01aba068b4a1e2b2f367039f118acdc789d434686bdafe2b3486860005 [INFO] running `Command { std: "docker" "start" "-a" "3812bf01aba068b4a1e2b2f367039f118acdc789d434686bdafe2b3486860005", kill_on_drop: false }` [INFO] [stderr] Compiling rs-mnist v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/main.rs:51:13 [INFO] [stdout] | [INFO] [stdout] 51 | for i in 0..epochs { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `batch` [INFO] [stdout] --> src/main.rs:61:15 [INFO] [stdout] | [INFO] [stdout] 61 | fn update(batch: &[(Arr, Arr)], eta: u32) {} [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_batch` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `eta` [INFO] [stdout] --> src/main.rs:61:37 [INFO] [stdout] | [INFO] [stdout] 61 | fn update(batch: &[(Arr, Arr)], eta: u32) {} [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_eta` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:65:9 [INFO] [stdout] | [INFO] [stdout] 65 | let mut test = Network::new(vec![2, 3, 5]); [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: type alias `Arr` is never used [INFO] [stdout] --> src/main.rs:7:6 [INFO] [stdout] | [INFO] [stdout] 7 | type Arr = Array>; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `num_layers` and `size` are never read [INFO] [stdout] --> src/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct Network { [INFO] [stdout] | ------- fields in this struct [INFO] [stdout] 10 | num_layers: u32, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 11 | size: Vec, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `SGD` and `update` are never used [INFO] [stdout] --> src/main.rs:50:8 [INFO] [stdout] | [INFO] [stdout] 16 | impl Network { [INFO] [stdout] | ------------ associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 50 | fn SGD(self, train_set: &mut Vec<(Arr, Arr)>, eta: u32, batch_size: usize, epochs: u32) { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 61 | fn update(batch: &[(Arr, Arr)], eta: u32) {} [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `SGD` should have a snake case name [INFO] [stdout] --> src/main.rs:50:8 [INFO] [stdout] | [INFO] [stdout] 50 | fn SGD(self, train_set: &mut Vec<(Arr, Arr)>, eta: u32, batch_size: usize, epochs: u32) { [INFO] [stdout] | ^^^ help: convert the identifier to snake case: `sgd` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s [INFO] running `Command { std: "docker" "inspect" "3812bf01aba068b4a1e2b2f367039f118acdc789d434686bdafe2b3486860005", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3812bf01aba068b4a1e2b2f367039f118acdc789d434686bdafe2b3486860005", kill_on_drop: false }` [INFO] [stdout] 3812bf01aba068b4a1e2b2f367039f118acdc789d434686bdafe2b3486860005