[INFO] updating cached repository https://github.com/glfmn/watermark [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] da8878290702e62d9772fc0e82a3db1805e1b990 [INFO] checking glfmn/watermark against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fglfmn%2Fwatermark" "/workspace/builds/worker-8/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/glfmn/watermark on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd [INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/glfmn/watermark [INFO] finished tweaking git repo https://github.com/glfmn/watermark [INFO] tweaked toml for git repo https://github.com/glfmn/watermark written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/glfmn/watermark already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 3c4343c87ec53ef4acd50efe125c7d33a2982b3d8ab616ab471358a745355e0a [INFO] running `"docker" "start" "-a" "3c4343c87ec53ef4acd50efe125c7d33a2982b3d8ab616ab471358a745355e0a"` [INFO] [stderr] Compiling proc-macro2 v0.4.23 [INFO] [stderr] Checking rand_isaac v0.1.0 [INFO] [stderr] Checking crossbeam-epoch v0.3.1 [INFO] [stderr] Checking num-integer v0.1.39 [INFO] [stderr] Compiling rand v0.6.0 [INFO] [stderr] Checking crossbeam-deque v0.2.0 [INFO] [stderr] Checking num-iter v0.1.37 [INFO] [stderr] Checking num-rational v0.2.1 [INFO] [stderr] Checking png v0.12.0 [INFO] [stderr] Checking rayon-core v1.4.1 [INFO] [stderr] Compiling quote v0.6.10 [INFO] [stderr] Checking rayon v1.0.3 [INFO] [stderr] Compiling syn v0.15.20 [INFO] [stderr] Checking jpeg-decoder v0.1.15 [INFO] [stderr] Compiling num-derive v0.2.3 [INFO] [stderr] Checking tiff v0.2.1 [INFO] [stderr] Checking image v0.20.1 [INFO] [stderr] Checking watermark v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `GenericImage` [INFO] [stderr] --> src/main.rs:7:31 [INFO] [stderr] | [INFO] [stderr] 7 | use image::{GenericImageView, GenericImage, ImageBuffer}; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `ImageBuffer` [INFO] [stderr] --> src/block.rs:1:45 [INFO] [stderr] | [INFO] [stderr] 1 | use image::{GenericImageView, GenericImage, ImageBuffer}; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the item `HashMap` is imported redundantly [INFO] [stderr] --> src/kmeans.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 4 | use std::collections::HashMap; [INFO] [stderr] | ------------------------- the item `HashMap` is already imported here [INFO] [stderr] ... [INFO] [stderr] 8 | use std::collections::HashMap; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `GenericImage` [INFO] [stderr] --> src/main.rs:7:31 [INFO] [stderr] | [INFO] [stderr] 7 | use image::{GenericImageView, GenericImage, ImageBuffer}; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `ImageBuffer` [INFO] [stderr] --> src/block.rs:1:45 [INFO] [stderr] | [INFO] [stderr] 1 | use image::{GenericImageView, GenericImage, ImageBuffer}; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the item `HashMap` is imported redundantly [INFO] [stderr] --> src/kmeans.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 4 | use std::collections::HashMap; [INFO] [stderr] | ------------------------- the item `HashMap` is already imported here [INFO] [stderr] ... [INFO] [stderr] 8 | use std::collections::HashMap; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `GenericImageView` [INFO] [stderr] --> src/main.rs:7:13 [INFO] [stderr] | [INFO] [stderr] 7 | use image::{GenericImageView, GenericImage, ImageBuffer}; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `rayon::prelude` [INFO] [stderr] --> src/block.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use rayon::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `row` [INFO] [stderr] --> src/main.rs:194:13 [INFO] [stderr] | [INFO] [stderr] 194 | let row = &permuted[start..end]; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_row` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `GenericImageView` [INFO] [stderr] --> src/main.rs:7:13 [INFO] [stderr] | [INFO] [stderr] 7 | use image::{GenericImageView, GenericImage, ImageBuffer}; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `rayon::prelude` [INFO] [stderr] --> src/block.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use rayon::prelude::*; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `row` [INFO] [stderr] --> src/main.rs:194:13 [INFO] [stderr] | [INFO] [stderr] 194 | let row = &permuted[start..end]; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_row` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:173:13 [INFO] [stderr] | [INFO] [stderr] 173 | let mut permuted_row = &mut permuted[start..end]; [INFO] [stderr] | ----^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:200:5 [INFO] [stderr] | [INFO] [stderr] 200 | write_image(output, mark_width, mark_height, &extracted); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:173:13 [INFO] [stderr] | [INFO] [stderr] 173 | let mut permuted_row = &mut permuted[start..end]; [INFO] [stderr] | ----^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:200:5 [INFO] [stderr] | [INFO] [stderr] 200 | write_image(output, mark_width, mark_height, &extracted); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 33.71s [INFO] running `"docker" "inspect" "3c4343c87ec53ef4acd50efe125c7d33a2982b3d8ab616ab471358a745355e0a"` [INFO] running `"docker" "rm" "-f" "3c4343c87ec53ef4acd50efe125c7d33a2982b3d8ab616ab471358a745355e0a"` [INFO] [stdout] 3c4343c87ec53ef4acd50efe125c7d33a2982b3d8ab616ab471358a745355e0a