[INFO] fetching crate pngquant 2.16.0-alpha.1...
[INFO] checking pngquant-2.16.0-alpha.1 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate pngquant 2.16.0-alpha.1 into /workspace/builds/worker-48/source
[INFO] validating manifest of crates.io crate pngquant 2.16.0-alpha.1 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pngquant 2.16.0-alpha.1
[INFO] finished tweaking crates.io crate pngquant 2.16.0-alpha.1
[INFO] tweaked toml for crates.io crate pngquant 2.16.0-alpha.1 written to /workspace/builds/worker-48/source/Cargo.toml
[INFO] crate crates.io crate pngquant 2.16.0-alpha.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded imagequant-sys v3.1.0+sys2.16.0
[INFO] [stderr]   Downloaded cocoa_image v1.0.4
[INFO] [stderr]   Downloaded libpng-sys v1.1.8
[INFO] [stderr]   Downloaded openmp-sys v1.2.0
[INFO] [stderr]   Downloaded lcms2-sys v3.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e65a70ca148dbf18cb3f3d991788876381708dc7a66e995b6a9efa90162e6e9b
[INFO] running `Command { std: "docker" "start" "-a" "e65a70ca148dbf18cb3f3d991788876381708dc7a66e995b6a9efa90162e6e9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e65a70ca148dbf18cb3f3d991788876381708dc7a66e995b6a9efa90162e6e9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e65a70ca148dbf18cb3f3d991788876381708dc7a66e995b6a9efa90162e6e9b", kill_on_drop: false }`
[INFO] [stdout] e65a70ca148dbf18cb3f3d991788876381708dc7a66e995b6a9efa90162e6e9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8aa594516eac63b066a3d2ec4936cf07a0eb57cde123eb14c83464207e6c050a
[INFO] running `Command { std: "docker" "start" "-a" "8aa594516eac63b066a3d2ec4936cf07a0eb57cde123eb14c83464207e6c050a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling dunce v1.0.2
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]     Checking wild v2.0.4
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking rgb v0.8.27
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling libpng-sys v1.1.8
[INFO] [stderr]    Compiling lcms2-sys v3.1.8
[INFO] [stderr]    Compiling imagequant-sys v3.1.0+sys2.16.0
[INFO] [stderr]    Compiling pngquant v2.16.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 27s
[INFO] running `Command { std: "docker" "inspect" "8aa594516eac63b066a3d2ec4936cf07a0eb57cde123eb14c83464207e6c050a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8aa594516eac63b066a3d2ec4936cf07a0eb57cde123eb14c83464207e6c050a", kill_on_drop: false }`
[INFO] [stdout] 8aa594516eac63b066a3d2ec4936cf07a0eb57cde123eb14c83464207e6c050a