[INFO] cloning repository https://github.com/RoganMatrivski/Change-Based-Image-Transcoder [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RoganMatrivski/Change-Based-Image-Transcoder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRoganMatrivski%2FChange-Based-Image-Transcoder", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRoganMatrivski%2FChange-Based-Image-Transcoder'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4ba953de9a7b66c3d105df21a01d32a1bb9ae113 [INFO] checking RoganMatrivski/Change-Based-Image-Transcoder against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRoganMatrivski%2FChange-Based-Image-Transcoder" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/RoganMatrivski/Change-Based-Image-Transcoder [INFO] finished tweaking git repo https://github.com/RoganMatrivski/Change-Based-Image-Transcoder [INFO] tweaked toml for git repo https://github.com/RoganMatrivski/Change-Based-Image-Transcoder written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/RoganMatrivski/Change-Based-Image-Transcoder on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/RoganMatrivski/Change-Based-Image-Transcoder 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 51d7d73cc5f1248e2ab5ef9020276a6e960dd6e400ca2bcab9fc50e8ddfbb1f9 [INFO] running `Command { std: "docker" "start" "-a" "51d7d73cc5f1248e2ab5ef9020276a6e960dd6e400ca2bcab9fc50e8ddfbb1f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "51d7d73cc5f1248e2ab5ef9020276a6e960dd6e400ca2bcab9fc50e8ddfbb1f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "51d7d73cc5f1248e2ab5ef9020276a6e960dd6e400ca2bcab9fc50e8ddfbb1f9", kill_on_drop: false }` [INFO] [stdout] 51d7d73cc5f1248e2ab5ef9020276a6e960dd6e400ca2bcab9fc50e8ddfbb1f9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 100af73a84e8d46f8e579d10524831429dcd3bb4daa42adf1663593ff5aee9e5 [INFO] running `Command { std: "docker" "start" "-a" "100af73a84e8d46f8e579d10524831429dcd3bb4daa42adf1663593ff5aee9e5", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.121 [INFO] [stderr] Compiling proc-macro2 v1.0.36 [INFO] [stderr] Compiling crossbeam-utils v0.8.8 [INFO] [stderr] Compiling syn v1.0.91 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling crc32fast v1.3.2 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Checking adler32 v1.2.0 [INFO] [stderr] Compiling futures-core v0.3.21 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Compiling num-rational v0.4.0 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Checking spin v0.9.2 [INFO] [stderr] Checking weezl v0.1.5 [INFO] [stderr] Checking futures-sink v0.3.21 [INFO] [stderr] Checking deflate v1.0.0 [INFO] [stderr] Checking inflate v0.4.5 [INFO] [stderr] Checking miniz_oxide v0.5.1 [INFO] [stderr] Checking color_quant v1.1.0 [INFO] [stderr] Checking bit_field v0.10.1 [INFO] [stderr] Checking jpeg-decoder v0.1.22 [INFO] [stderr] Checking lebe v0.5.1 [INFO] [stderr] Checking half v1.8.2 [INFO] [stderr] Checking gif v0.11.3 [INFO] [stderr] Checking scoped_threadpool v0.1.9 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking bytemuck v1.9.1 [INFO] [stderr] Checking crossbeam-epoch v0.9.8 [INFO] [stderr] Checking crossbeam-channel v0.5.4 [INFO] [stderr] Checking png v0.17.5 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking getrandom v0.2.6 [INFO] [stderr] Compiling quote v1.0.17 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking threadpool v1.8.1 [INFO] [stderr] Checking nanorand v0.7.0 [INFO] [stderr] Checking flate2 v1.0.22 [INFO] [stderr] Checking rayon-core v1.9.1 [INFO] [stderr] Checking tiff v0.7.1 [INFO] [stderr] Checking jpeg-decoder v0.2.4 [INFO] [stderr] Compiling pin-project-internal v1.0.10 [INFO] [stderr] Checking pin-project v1.0.10 [INFO] [stderr] Checking flume v0.10.12 [INFO] [stderr] Checking exr v1.4.1 [INFO] [stderr] Checking image v0.24.1 [INFO] [stderr] Checking image_transcoder v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `vec` [INFO] [stdout] --> src/main.rs:1:37 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{env::args, fs, io::Write, vec}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `io::Reader as imageReader` [INFO] [stdout] --> src/main.rs:3:13 [INFO] [stdout] | [INFO] [stdout] 3 | use image::{io::Reader as imageReader, GenericImageView}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `image_transcoder` (bin "image_transcoder" test) due to 1 previous error; 3 warnings emitted [INFO] [stdout] warning: method `check_pixel` is never used [INFO] [stdout] --> src/struct.rs:53:12 [INFO] [stdout] | [INFO] [stdout] 26 | impl Img { [INFO] [stdout] | -------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 53 | pub fn check_pixel(&self, x: usize, y: usize, color: u8) -> bool { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused import: `vec` [INFO] [stdout] --> src/main.rs:1:37 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{env::args, fs, io::Write, vec}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `io::Reader as imageReader` [INFO] [stdout] --> src/main.rs:3:13 [INFO] [stdout] | [INFO] [stdout] 3 | use image::{io::Reader as imageReader, GenericImageView}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/struct.rs:28:32 [INFO] [stdout] | [INFO] [stdout] 28 | let len_usize: usize = (x * y).try_into().unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `check_pixel` is never used [INFO] [stdout] --> src/struct.rs:53:12 [INFO] [stdout] | [INFO] [stdout] 26 | impl Img { [INFO] [stdout] | -------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 53 | pub fn check_pixel(&self, x: usize, y: usize, color: u8) -> bool { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/struct.rs:28:32 [INFO] [stdout] | [INFO] [stdout] 28 | let len_usize: usize = (x * y).try_into().unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `image_transcoder` (bin "image_transcoder") due to 1 previous error; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "100af73a84e8d46f8e579d10524831429dcd3bb4daa42adf1663593ff5aee9e5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "100af73a84e8d46f8e579d10524831429dcd3bb4daa42adf1663593ff5aee9e5", kill_on_drop: false }` [INFO] [stdout] 100af73a84e8d46f8e579d10524831429dcd3bb4daa42adf1663593ff5aee9e5