[INFO] cloning repository https://github.com/rjzak/miniMNIST-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rjzak/miniMNIST-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frjzak%2FminiMNIST-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frjzak%2FminiMNIST-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] add6ec0a54f9cef04f7201724a4b73a28987c0ed [INFO] checking rjzak/miniMNIST-rs against master#d2eadb7a94ef8c9deb5137695df33cd1fc5aee92 for pr-137268 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frjzak%2FminiMNIST-rs" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rjzak/miniMNIST-rs on toolchain d2eadb7a94ef8c9deb5137695df33cd1fc5aee92 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/rjzak/miniMNIST-rs [INFO] finished tweaking git repo https://github.com/rjzak/miniMNIST-rs [INFO] tweaked toml for git repo https://github.com/rjzak/miniMNIST-rs written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/rjzak/miniMNIST-rs 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" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cda54200dfbe2ec74f313dd1f7bdabb1061c13933a72eb3bc434db75b71874c2 [INFO] running `Command { std: "docker" "start" "-a" "cda54200dfbe2ec74f313dd1f7bdabb1061c13933a72eb3bc434db75b71874c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cda54200dfbe2ec74f313dd1f7bdabb1061c13933a72eb3bc434db75b71874c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cda54200dfbe2ec74f313dd1f7bdabb1061c13933a72eb3bc434db75b71874c2", kill_on_drop: false }` [INFO] [stdout] cda54200dfbe2ec74f313dd1f7bdabb1061c13933a72eb3bc434db75b71874c2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7ab9599a1b161674aa7cb614c54a7461e6b098cb788414f2d0841fd4e96202d6 [INFO] running `Command { std: "docker" "start" "-a" "7ab9599a1b161674aa7cb614c54a7461e6b098cb788414f2d0841fd4e96202d6", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Compiling unicode-ident v1.0.13 [INFO] [stderr] Compiling libc v0.2.159 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking getrandom v0.2.15 [INFO] [stderr] Compiling quote v1.0.37 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Compiling syn v2.0.77 [INFO] [stderr] Compiling zerocopy-derive v0.7.35 [INFO] [stderr] Checking zerocopy v0.7.35 [INFO] [stderr] Checking ppv-lite86 v0.2.20 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking minimnist-rs v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::cmp::max` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::cmp::max; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Rng` [INFO] [stdout] --> src/main.rs:3:20 [INFO] [stdout] | [INFO] [stdout] 3 | use rand::{random, Rng}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:211:9 [INFO] [stdout] | [INFO] [stdout] 211 | let mut data = InputData::load(TRAIN_IMG_PATH.as_ref(), TRAIN_LBL_PATH.as_ref()).expect("Failed to load mnist data"); [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: constant `IMAGE_SIZE` is never used [INFO] [stdout] --> src/main.rs:11:7 [INFO] [stdout] | [INFO] [stdout] 11 | const IMAGE_SIZE: u16 = 28; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `shuffle` is never used [INFO] [stdout] --> src/main.rs:180:12 [INFO] [stdout] | [INFO] [stdout] 157 | impl InputData { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 180 | pub fn shuffle(&mut self) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::cmp::max` [INFO] [stdout] --> src/main.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::cmp::max; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Rng` [INFO] [stdout] --> src/main.rs:3:20 [INFO] [stdout] | [INFO] [stdout] 3 | use rand::{random, Rng}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:211:9 [INFO] [stdout] | [INFO] [stdout] 211 | let mut data = InputData::load(TRAIN_IMG_PATH.as_ref(), TRAIN_LBL_PATH.as_ref()).expect("Failed to load mnist data"); [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: constant `IMAGE_SIZE` is never used [INFO] [stdout] --> src/main.rs:11:7 [INFO] [stdout] | [INFO] [stdout] 11 | const IMAGE_SIZE: u16 = 28; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `shuffle` is never used [INFO] [stdout] --> src/main.rs:180:12 [INFO] [stdout] | [INFO] [stdout] 157 | impl InputData { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 180 | pub fn shuffle(&mut self) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.78s [INFO] running `Command { std: "docker" "inspect" "7ab9599a1b161674aa7cb614c54a7461e6b098cb788414f2d0841fd4e96202d6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7ab9599a1b161674aa7cb614c54a7461e6b098cb788414f2d0841fd4e96202d6", kill_on_drop: false }` [INFO] [stdout] 7ab9599a1b161674aa7cb614c54a7461e6b098cb788414f2d0841fd4e96202d6