[INFO] fetching crate pix-br 0.1.0...
[INFO] checking pix-br-0.1.0 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate pix-br 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate pix-br 0.1.0
[INFO] finished tweaking crates.io crate pix-br 0.1.0
[INFO] tweaked toml for crates.io crate pix-br 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pix-br 0.1.0 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 54 packages to latest compatible versions
[INFO] [stderr]       Adding qrcode-generator v4.1.9 (available: v5.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d9d23e7b8cb0256e6af5e11a7a655da6c289c2f8800ac67d2b01768b956e007
[INFO] running `Command { std: "docker" "start" "-a" "3d9d23e7b8cb0256e6af5e11a7a655da6c289c2f8800ac67d2b01768b956e007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d9d23e7b8cb0256e6af5e11a7a655da6c289c2f8800ac67d2b01768b956e007", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d9d23e7b8cb0256e6af5e11a7a655da6c289c2f8800ac67d2b01768b956e007", kill_on_drop: false }`
[INFO] [stdout] 3d9d23e7b8cb0256e6af5e11a7a655da6c289c2f8800ac67d2b01768b956e007
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 532f7ec43d446df1e143f18beddb8ae21a959160ebde91b33568be1df410e4f5
[INFO] running `Command { std: "docker" "start" "-a" "532f7ec43d446df1e143f18beddb8ae21a959160ebde91b33568be1df410e4f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking gif v0.11.4
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking unidecode v0.3.0
[INFO] [stderr]     Checking png v0.17.16
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.24.9
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking qrcode-generator v4.1.9
[INFO] [stderr]     Checking image-base64-wasm v0.6.0
[INFO] [stderr]     Checking pix-br v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `slice` is never used
[INFO] [stdout]   --> src/lib.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     trait StringUtils {
[INFO] [stdout]    |           ----------- method in this trait
[INFO] [stdout] 22 |         fn substring(&self, start: usize, len: usize) -> &str;
[INFO] [stdout] 23 |         fn slice(&self, range: impl RangeBounds<usize>) -> &str;
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `slice` is never used
[INFO] [stdout]   --> src/lib.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     trait StringUtils {
[INFO] [stdout]    |           ----------- method in this trait
[INFO] [stdout] 22 |         fn substring(&self, start: usize, len: usize) -> &str;
[INFO] [stdout] 23 |         fn slice(&self, range: impl RangeBounds<usize>) -> &str;
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.87s
[INFO] running `Command { std: "docker" "inspect" "532f7ec43d446df1e143f18beddb8ae21a959160ebde91b33568be1df410e4f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "532f7ec43d446df1e143f18beddb8ae21a959160ebde91b33568be1df410e4f5", kill_on_drop: false }`
[INFO] [stdout] 532f7ec43d446df1e143f18beddb8ae21a959160ebde91b33568be1df410e4f5