[INFO] updating cached repository https://github.com/xurtis/imgdiff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5c46a9f29ec7f58db66d2a301831bc589a4a6484
[INFO] checking xurtis/imgdiff against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxurtis%2Fimgdiff" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xurtis/imgdiff on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xurtis/imgdiff
[INFO] finished tweaking git repo https://github.com/xurtis/imgdiff
[INFO] tweaked toml for git repo https://github.com/xurtis/imgdiff written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/xurtis/imgdiff already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 574ab6c6950a7bfd3d898512753cad4e30df604c557dab2743c2871dbe649ea1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "574ab6c6950a7bfd3d898512753cad4e30df604c557dab2743c2871dbe649ea1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "574ab6c6950a7bfd3d898512753cad4e30df604c557dab2743c2871dbe649ea1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "574ab6c6950a7bfd3d898512753cad4e30df604c557dab2743c2871dbe649ea1", kill_on_drop: false }`
[INFO] [stdout] 574ab6c6950a7bfd3d898512753cad4e30df604c557dab2743c2871dbe649ea1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 474b3fbd9566ac2d98538a14a61e418c26498162e86a6fc4f9f63e06affddccc
[INFO] running `Command { std: "docker" "start" "-a" "474b3fbd9566ac2d98538a14a61e418c26498162e86a6fc4f9f63e06affddccc", kill_on_drop: false }`
[INFO] [stderr]     Checking scoped_threadpool v0.1.8
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking num-rational v0.1.40
[INFO] [stderr]     Checking gif v0.9.2
[INFO] [stderr]     Checking deflate v0.7.17
[INFO] [stderr]     Checking inflate v0.3.3
[INFO] [stderr]     Checking rayon-core v1.3.0
[INFO] [stderr]     Checking rayon v0.8.2
[INFO] [stderr]     Checking rayon v0.9.0
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.13
[INFO] [stderr]     Checking image v0.18.0
[INFO] [stderr]     Checking imgdiff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.28s
[INFO] running `Command { std: "docker" "inspect" "474b3fbd9566ac2d98538a14a61e418c26498162e86a6fc4f9f63e06affddccc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "474b3fbd9566ac2d98538a14a61e418c26498162e86a6fc4f9f63e06affddccc", kill_on_drop: false }`
[INFO] [stdout] 474b3fbd9566ac2d98538a14a61e418c26498162e86a6fc4f9f63e06affddccc