[INFO] cloning repository https://github.com/thomas9911/imageoptimizer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thomas9911/imageoptimizer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomas9911%2Fimageoptimizer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomas9911%2Fimageoptimizer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ef3c5da695a7068c00abd36103a2f7e436901a31
[INFO] checking thomas9911/imageoptimizer against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomas9911%2Fimageoptimizer" "/workspace/builds/worker-42/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-42/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thomas9911/imageoptimizer on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thomas9911/imageoptimizer
[INFO] finished tweaking git repo https://github.com/thomas9911/imageoptimizer
[INFO] tweaked toml for git repo https://github.com/thomas9911/imageoptimizer written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] crate git repo https://github.com/thomas9911/imageoptimizer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `3.0.3+sys2.14.0` for dependency `imagequant` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de402614c774a3351775693a8346015ae6f3bce93fdee179a9ed25985f991b57
[INFO] running `Command { std: "docker" "start" "-a" "de402614c774a3351775693a8346015ae6f3bce93fdee179a9ed25985f991b57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de402614c774a3351775693a8346015ae6f3bce93fdee179a9ed25985f991b57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de402614c774a3351775693a8346015ae6f3bce93fdee179a9ed25985f991b57", kill_on_drop: false }`
[INFO] [stdout] de402614c774a3351775693a8346015ae6f3bce93fdee179a9ed25985f991b57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d5ff20598c945f177e03b7caea98238a0e9c02a813b68c5cffef989ed4d7ed7
[INFO] running `Command { std: "docker" "start" "-a" "0d5ff20598c945f177e03b7caea98238a0e9c02a813b68c5cffef989ed4d7ed7", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `3.0.3+sys2.14.0` for dependency `imagequant` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]     Checking bytemuck v1.5.1
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]    Compiling dunce v1.0.2
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking simplecss v0.1.0
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking arrayvec v0.7.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking deflate v0.9.1
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking rgb v0.8.27
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking fallible_collections v0.4.2
[INFO] [stderr]    Compiling jobserver v0.1.22
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]     Checking xmlparser v0.1.2
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]     Checking svgparser v0.6.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.4
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]     Checking png v0.17.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling imagequant-sys v3.0.6+sys2.15.0
[INFO] [stderr]    Compiling libwebp-sys v0.2.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking float-cmp v0.3.0
[INFO] [stderr]     Checking svgdom v0.10.5
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking imagequant v3.0.3+sys2.14.0
[INFO] [stderr]     Checking fern v0.5.9
[INFO] [stderr]     Checking svgcleaner v0.9.5
[INFO] [stderr]     Checking webp v0.2.0
[INFO] [stderr]    Compiling nasm-rs v0.2.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling mozjpeg-sys v1.0.0
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking mozjpeg v0.9.1
[INFO] [stderr]     Checking imgopt v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.42s
[INFO] running `Command { std: "docker" "inspect" "0d5ff20598c945f177e03b7caea98238a0e9c02a813b68c5cffef989ed4d7ed7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d5ff20598c945f177e03b7caea98238a0e9c02a813b68c5cffef989ed4d7ed7", kill_on_drop: false }`
[INFO] [stdout] 0d5ff20598c945f177e03b7caea98238a0e9c02a813b68c5cffef989ed4d7ed7