[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] 1ff9cd6add8442e73b32bd111301d387582177af
[INFO] checking redwarp/optimize-png-hooks against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredwarp%2Foptimize-png-hooks" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/redwarp/optimize-png-hooks on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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-7-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crc v3.0.0
[INFO] [stderr]   Downloaded crc-catalog v2.1.0
[INFO] [stderr]   Downloaded cloudflare-zlib v0.2.9
[INFO] [stderr]   Downloaded libdeflater v0.10.0
[INFO] [stderr]   Downloaded rgb v0.8.33
[INFO] [stderr]   Downloaded stderrlog v0.5.3
[INFO] [stderr]   Downloaded zopfli v0.7.1
[INFO] [stderr]   Downloaded clap v3.2.21
[INFO] [stderr]   Downloaded cloudflare-zlib-sys v0.3.0
[INFO] [stderr]   Downloaded png v0.17.6
[INFO] [stderr]   Downloaded libdeflate-sys v0.10.0
[INFO] [stderr]   Downloaded oxipng v6.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77befd198ec9d60147682b7d8b0cc0f98b778015a788b49a71c4416e57482c06
[INFO] running `Command { std: "docker" "start" "-a" "77befd198ec9d60147682b7d8b0cc0f98b778015a788b49a71c4416e57482c06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77befd198ec9d60147682b7d8b0cc0f98b778015a788b49a71c4416e57482c06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77befd198ec9d60147682b7d8b0cc0f98b778015a788b49a71c4416e57482c06", kill_on_drop: false }`
[INFO] [stdout] 77befd198ec9d60147682b7d8b0cc0f98b778015a788b49a71c4416e57482c06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa54f4e1476ba54fd58bc238761e38e08eb66cd3378ba4ab9aaef2656beed620
[INFO] running `Command { std: "docker" "start" "-a" "fa54f4e1476ba54fd58bc238761e38e08eb66cd3378ba4ab9aaef2656beed620", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking once_cell v1.14.0
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking miniz_oxide v0.5.4
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]     Checking crc-catalog v2.1.0
[INFO] [stderr]     Checking bytemuck v1.12.1
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.10
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]    Compiling cloudflare-zlib-sys v0.3.0
[INFO] [stderr]    Compiling libdeflate-sys v0.10.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking png v0.17.6
[INFO] [stderr]     Checking crc v3.0.0
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking iter-read v0.3.1
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking zopfli v0.7.1
[INFO] [stderr]     Checking stderrlog v0.5.3
[INFO] [stderr]     Checking filetime v0.2.17
[INFO] [stderr]     Checking rgb v0.8.33
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking wild v2.1.0
[INFO] [stderr]     Checking image v0.24.3
[INFO] [stderr]     Checking libdeflater v0.10.0
[INFO] [stderr]     Checking cloudflare-zlib v0.2.9
[INFO] [stderr]     Checking clap v3.2.21
[INFO] [stderr]     Checking oxipng v6.0.1
[INFO] [stderr]     Checking optimize_png v1.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.29s
[INFO] running `Command { std: "docker" "inspect" "fa54f4e1476ba54fd58bc238761e38e08eb66cd3378ba4ab9aaef2656beed620", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa54f4e1476ba54fd58bc238761e38e08eb66cd3378ba4ab9aaef2656beed620", kill_on_drop: false }`
[INFO] [stdout] fa54f4e1476ba54fd58bc238761e38e08eb66cd3378ba4ab9aaef2656beed620
[INFO] checking redwarp/optimize-png-hooks against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fredwarp%2Foptimize-png-hooks" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/redwarp/optimize-png-hooks on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "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-7-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 454db322ca08fe91bbd5401a65906d92d6824fc19d2bb9f0c2d7f6befa2f4905
[INFO] running `Command { std: "docker" "start" "-a" "454db322ca08fe91bbd5401a65906d92d6824fc19d2bb9f0c2d7f6befa2f4905", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "454db322ca08fe91bbd5401a65906d92d6824fc19d2bb9f0c2d7f6befa2f4905", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "454db322ca08fe91bbd5401a65906d92d6824fc19d2bb9f0c2d7f6befa2f4905", kill_on_drop: false }`
[INFO] [stdout] 454db322ca08fe91bbd5401a65906d92d6824fc19d2bb9f0c2d7f6befa2f4905
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68c28f46e2ff66b5869879f1490e54ff7a8123004387ceb9e62e5e2c33d3d0e9
[INFO] running `Command { std: "docker" "start" "-a" "68c28f46e2ff66b5869879f1490e54ff7a8123004387ceb9e62e5e2c33d3d0e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]     Checking once_cell v1.14.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking miniz_oxide v0.5.4
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking crc-catalog v2.1.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.10
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking bytemuck v1.12.1
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]    Compiling cloudflare-zlib-sys v0.3.0
[INFO] [stderr]    Compiling libdeflate-sys v0.10.0
[INFO] [stderr]     Checking png v0.17.6
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking crc v3.0.0
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]     Checking iter-read v0.3.1
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking zopfli v0.7.1
[INFO] [stderr]     Checking stderrlog v0.5.3
[INFO] [stderr]     Checking rgb v0.8.33
[INFO] [stderr]     Checking filetime v0.2.17
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking wild v2.1.0
[INFO] [stderr]     Checking image v0.24.3
[INFO] [stderr]     Checking libdeflater v0.10.0
[INFO] [stderr]     Checking cloudflare-zlib v0.2.9
[INFO] [stderr]     Checking clap v3.2.21
[INFO] [stderr]     Checking oxipng v6.0.1
[INFO] [stderr]     Checking optimize_png v1.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.34s
[INFO] running `Command { std: "docker" "inspect" "68c28f46e2ff66b5869879f1490e54ff7a8123004387ceb9e62e5e2c33d3d0e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68c28f46e2ff66b5869879f1490e54ff7a8123004387ceb9e62e5e2c33d3d0e9", kill_on_drop: false }`
[INFO] [stdout] 68c28f46e2ff66b5869879f1490e54ff7a8123004387ceb9e62e5e2c33d3d0e9