[INFO] cloning repository https://github.com/redwarp/optimize-png-hooks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/redwarp/optimize-png-hooks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredwarp%2Foptimize-png-hooks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredwarp%2Foptimize-png-hooks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db9b262413e1ceba48b30874df828d85cffd937e
[INFO] testing redwarp/optimize-png-hooks against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredwarp%2Foptimize-png-hooks" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/redwarp/optimize-png-hooks on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/redwarp/optimize-png-hooks
[INFO] finished tweaking git repo https://github.com/redwarp/optimize-png-hooks
[INFO] tweaked toml for git repo https://github.com/redwarp/optimize-png-hooks written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/redwarp/optimize-png-hooks already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51ea0fbf0db8402f5c74cb9446fef774eaa69d73ea92625a78b3d2f4d65761d1
[INFO] running `Command { std: "docker" "start" "-a" "51ea0fbf0db8402f5c74cb9446fef774eaa69d73ea92625a78b3d2f4d65761d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51ea0fbf0db8402f5c74cb9446fef774eaa69d73ea92625a78b3d2f4d65761d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51ea0fbf0db8402f5c74cb9446fef774eaa69d73ea92625a78b3d2f4d65761d1", kill_on_drop: false }`
[INFO] [stdout] 51ea0fbf0db8402f5c74cb9446fef774eaa69d73ea92625a78b3d2f4d65761d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=warn" "-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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6f63360357ffd8c915a2227bda5a4c3e868d4cbc7a9b48afea1081108484f78
[INFO] running `Command { std: "docker" "start" "-a" "d6f63360357ffd8c915a2227bda5a4c3e868d4cbc7a9b48afea1081108484f78", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]    Compiling bytemuck v1.5.1
[INFO] [stderr]    Compiling typed-arena v1.7.0
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling wild v2.0.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling rgb v0.8.27
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling zopfli v0.4.0
[INFO] [stderr]    Compiling stderrlog v0.5.1
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling cloudflare-zlib-sys v0.3.0
[INFO] [stderr]    Compiling libdeflate-sys v0.7.1
[INFO] [stderr]    Compiling oxipng v4.0.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.3
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling libdeflater v0.7.1
[INFO] [stderr]    Compiling cloudflare-zlib v0.2.9
[INFO] [stderr]    Compiling optimize_png v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.59s
[INFO] running `Command { std: "docker" "inspect" "d6f63360357ffd8c915a2227bda5a4c3e868d4cbc7a9b48afea1081108484f78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6f63360357ffd8c915a2227bda5a4c3e868d4cbc7a9b48afea1081108484f78", kill_on_drop: false }`
[INFO] [stdout] d6f63360357ffd8c915a2227bda5a4c3e868d4cbc7a9b48afea1081108484f78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=warn" "-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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e105d430bd5fb5ca2c5d56490756601e9dc040985edbe4b3a2ded9e596431d47
[INFO] running `Command { std: "docker" "start" "-a" "e105d430bd5fb5ca2c5d56490756601e9dc040985edbe4b3a2ded9e596431d47", kill_on_drop: false }`
[INFO] [stderr]    Compiling optimize_png v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "e105d430bd5fb5ca2c5d56490756601e9dc040985edbe4b3a2ded9e596431d47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e105d430bd5fb5ca2c5d56490756601e9dc040985edbe4b3a2ded9e596431d47", kill_on_drop: false }`
[INFO] [stdout] e105d430bd5fb5ca2c5d56490756601e9dc040985edbe4b3a2ded9e596431d47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=warn" "-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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 34a94957a8987d85c9a49e0428dc343a2bc8395dbb7c4ece343c8a00be75cf95
[INFO] running `Command { std: "docker" "start" "-a" "34a94957a8987d85c9a49e0428dc343a2bc8395dbb7c4ece343c8a00be75cf95", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/optimize_png-b3b10335b55082fb)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "34a94957a8987d85c9a49e0428dc343a2bc8395dbb7c4ece343c8a00be75cf95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34a94957a8987d85c9a49e0428dc343a2bc8395dbb7c4ece343c8a00be75cf95", kill_on_drop: false }`
[INFO] [stdout] 34a94957a8987d85c9a49e0428dc343a2bc8395dbb7c4ece343c8a00be75cf95