[INFO] fetching crate pix-br 0.1.0...
[INFO] building pix-br-0.1.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate pix-br 0.1.0 into /workspace/builds/worker-4-tc1/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-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate pix-br 0.1.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded qrcode-generator v4.1.9
[INFO] [stderr]   Downloaded html-escape v0.2.13
[INFO] [stderr]   Downloaded md5 v0.7.0
[INFO] [stderr]   Downloaded qrcodegen v1.8.0
[INFO] [stderr]   Downloaded unidecode v0.3.0
[INFO] [stderr]   Downloaded image-base64-wasm v0.6.0
[INFO] [stderr]   Downloaded gif v0.11.4
[INFO] [stderr]   Downloaded utf8-width v0.1.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88b034c7c364c7eb8bff95dd1710c35cc01753c3d0bd3f0054ac52f8231e09db
[INFO] running `Command { std: "docker" "start" "-a" "88b034c7c364c7eb8bff95dd1710c35cc01753c3d0bd3f0054ac52f8231e09db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88b034c7c364c7eb8bff95dd1710c35cc01753c3d0bd3f0054ac52f8231e09db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88b034c7c364c7eb8bff95dd1710c35cc01753c3d0bd3f0054ac52f8231e09db", kill_on_drop: false }`
[INFO] [stdout] 88b034c7c364c7eb8bff95dd1710c35cc01753c3d0bd3f0054ac52f8231e09db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c005b5231ae157e9ba29e8a0e9b9209b131a72f6153a4e106317e1d3674fee53
[INFO] running `Command { std: "docker" "start" "-a" "c005b5231ae157e9ba29e8a0e9b9209b131a72f6153a4e106317e1d3674fee53", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling bytemuck v1.23.2
[INFO] [stderr]    Compiling weezl v0.1.10
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling ucd-util v0.1.10
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling fdeflate v0.3.7
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling utf8-width v0.1.7
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling html-escape v0.2.13
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[INFO] [stderr]    Compiling gif v0.11.4
[INFO] [stderr]    Compiling qrcodegen v1.8.0
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[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling flate2 v1.1.2
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling png v0.17.16
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[INFO] [stderr]    Compiling image v0.24.9
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
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[INFO] [stderr]    Compiling qrcode-generator v4.1.9
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling image-base64-wasm v0.6.0
[INFO] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.54s
[INFO] running `Command { std: "docker" "inspect" "c005b5231ae157e9ba29e8a0e9b9209b131a72f6153a4e106317e1d3674fee53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c005b5231ae157e9ba29e8a0e9b9209b131a72f6153a4e106317e1d3674fee53", kill_on_drop: false }`
[INFO] [stdout] c005b5231ae157e9ba29e8a0e9b9209b131a72f6153a4e106317e1d3674fee53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ca525c9b4d3a1481b2ed2582b428d46a03fe653461c9917f48b0c6841cec150
[INFO] running `Command { std: "docker" "start" "-a" "8ca525c9b4d3a1481b2ed2582b428d46a03fe653461c9917f48b0c6841cec150", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "8ca525c9b4d3a1481b2ed2582b428d46a03fe653461c9917f48b0c6841cec150", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ca525c9b4d3a1481b2ed2582b428d46a03fe653461c9917f48b0c6841cec150", kill_on_drop: false }`
[INFO] [stdout] 8ca525c9b4d3a1481b2ed2582b428d46a03fe653461c9917f48b0c6841cec150