[INFO] cloning repository https://github.com/danmugh/Images-Combiner [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/danmugh/Images-Combiner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanmugh%2FImages-Combiner", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanmugh%2FImages-Combiner'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 35785c7196b2f5fbb3aaf53d1b0c702285ec8d97 [INFO] checking danmugh/Images-Combiner against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanmugh%2FImages-Combiner" "/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/danmugh/Images-Combiner on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/danmugh/Images-Combiner [INFO] finished tweaking git repo https://github.com/danmugh/Images-Combiner [INFO] tweaked toml for git repo https://github.com/danmugh/Images-Combiner written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/danmugh/Images-Combiner 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded crossbeam-channel v0.5.2 [INFO] [stderr] Downloaded crossbeam-utils v0.8.6 [INFO] [stderr] Downloaded crossbeam-epoch v0.9.6 [INFO] [stderr] Downloaded libc v0.2.117 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b4910840ffbd2d0713170df14e1ef5dc8a47d6ec91d130066a3a0fd4bd864178 [INFO] running `Command { std: "docker" "start" "-a" "b4910840ffbd2d0713170df14e1ef5dc8a47d6ec91d130066a3a0fd4bd864178", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b4910840ffbd2d0713170df14e1ef5dc8a47d6ec91d130066a3a0fd4bd864178", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b4910840ffbd2d0713170df14e1ef5dc8a47d6ec91d130066a3a0fd4bd864178", kill_on_drop: false }` [INFO] [stdout] b4910840ffbd2d0713170df14e1ef5dc8a47d6ec91d130066a3a0fd4bd864178 [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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ae7a09bd525d2a6b78f0054a616d3dc03c6ffa1797b3a5f62c43b5b56e28abcf [INFO] running `Command { std: "docker" "start" "-a" "ae7a09bd525d2a6b78f0054a616d3dc03c6ffa1797b3a5f62c43b5b56e28abcf", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.6 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling crossbeam-epoch v0.9.6 [INFO] [stderr] Compiling libc v0.2.117 [INFO] [stderr] Compiling crc32fast v1.3.1 [INFO] [stderr] Checking bytemuck v1.7.3 [INFO] [stderr] Checking gif v0.11.3 [INFO] [stderr] Checking num-iter v0.1.42 [INFO] [stderr] Checking png v0.16.8 [INFO] [stderr] Checking crossbeam-channel v0.5.2 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking rayon-core v1.9.1 [INFO] [stderr] Checking rayon v1.5.1 [INFO] [stderr] Checking jpeg-decoder v0.1.22 [INFO] [stderr] Checking tiff v0.6.1 [INFO] [stderr] Checking image v0.23.14 [INFO] [stderr] Checking combiner v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `fs::File`, `io::BufReader` [INFO] [stdout] --> src/main.rs:5:11 [INFO] [stdout] | [INFO] [stdout] 5 | use std::{fs::File, io::BufReader}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::Error` [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::fmt::Error; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `fs::File`, `io::BufReader` [INFO] [stdout] --> src/main.rs:5:11 [INFO] [stdout] | [INFO] [stdout] 5 | use std::{fs::File, io::BufReader}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::Error` [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::fmt::Error; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:14:31 [INFO] [stdout] | [INFO] [stdout] 14 | UnableToReadImageFromPath(std::io::Error), [INFO] [stdout] | ------------------------- ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 14 | UnableToReadImageFromPath(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:14:31 [INFO] [stdout] | [INFO] [stdout] 14 | UnableToReadImageFromPath(std::io::Error), [INFO] [stdout] | ------------------------- ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 14 | UnableToReadImageFromPath(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:15:25 [INFO] [stdout] | [INFO] [stdout] 15 | UnableToFormatImage(String), [INFO] [stdout] | ------------------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 15 | UnableToFormatImage(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:15:25 [INFO] [stdout] | [INFO] [stdout] 15 | UnableToFormatImage(String), [INFO] [stdout] | ------------------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 15 | UnableToFormatImage(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:16:25 [INFO] [stdout] | [INFO] [stdout] 16 | UnableToDecodeImage(ImageError), [INFO] [stdout] | ------------------- ^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 16 | UnableToDecodeImage(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:16:25 [INFO] [stdout] | [INFO] [stdout] 16 | UnableToDecodeImage(ImageError), [INFO] [stdout] | ------------------- ^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 16 | UnableToDecodeImage(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:17:23 [INFO] [stdout] | [INFO] [stdout] 17 | UnableToSaveImage(ImageError) [INFO] [stdout] | ----------------- ^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 17 | UnableToSaveImage(()) [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:17:23 [INFO] [stdout] | [INFO] [stdout] 17 | UnableToSaveImage(ImageError) [INFO] [stdout] | ----------------- ^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 17 | UnableToSaveImage(()) [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.07s [INFO] running `Command { std: "docker" "inspect" "ae7a09bd525d2a6b78f0054a616d3dc03c6ffa1797b3a5f62c43b5b56e28abcf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ae7a09bd525d2a6b78f0054a616d3dc03c6ffa1797b3a5f62c43b5b56e28abcf", kill_on_drop: false }` [INFO] [stdout] ae7a09bd525d2a6b78f0054a616d3dc03c6ffa1797b3a5f62c43b5b56e28abcf