[INFO] fetching crate zune-png 0.5.0-rc1...
[INFO] checking zune-png-0.5.0-rc1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate zune-png 0.5.0-rc1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate zune-png 0.5.0-rc1
[INFO] finished tweaking crates.io crate zune-png 0.5.0-rc1
[INFO] tweaked toml for crates.io crate zune-png 0.5.0-rc1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zune-png 0.5.0-rc1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 21 packages to latest compatible versions
[INFO] [stderr]       Adding nanorand v0.7.0 (available: v0.8.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 760faad566430a6875623cbd5fa8ab1c5a58d737a4e726c273cb7ef4402d9c7f
[INFO] running `Command { std: "docker" "start" "-a" "760faad566430a6875623cbd5fa8ab1c5a58d737a4e726c273cb7ef4402d9c7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "760faad566430a6875623cbd5fa8ab1c5a58d737a4e726c273cb7ef4402d9c7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "760faad566430a6875623cbd5fa8ab1c5a58d737a4e726c273cb7ef4402d9c7f", kill_on_drop: false }`
[INFO] [stdout] 760faad566430a6875623cbd5fa8ab1c5a58d737a4e726c273cb7ef4402d9c7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 580ccd77fd5c2f8f111b7403c85c63fe531fe329c791a64511093fe160bdfe70
[INFO] running `Command { std: "docker" "start" "-a" "580ccd77fd5c2f8f111b7403c85c63fe531fe329c791a64511093fe160bdfe70", kill_on_drop: false }`
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling pkg-config v0.3.32
[INFO] [stderr]     Checking simd-adler32 v0.3.7
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking adler2 v2.0.1
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking zune-core v0.5.0-rc2
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]     Checking crc32fast v1.4.2
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking zune-inflate v0.2.54
[INFO] [stderr]     Checking fdeflate v0.3.7
[INFO] [stderr]    Compiling cc v1.2.27
[INFO] [stderr]     Checking zune-png v0.5.0-rc1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking flate2 v1.1.2
[INFO] [stderr]     Checking png v0.17.16
[INFO] [stderr]    Compiling libz-sys v1.1.22
[INFO] [stderr]    Compiling spng-sys v0.1.0
[INFO] [stderr]     Checking spng v0.1.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.58s
[INFO] running `Command { std: "docker" "inspect" "580ccd77fd5c2f8f111b7403c85c63fe531fe329c791a64511093fe160bdfe70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "580ccd77fd5c2f8f111b7403c85c63fe531fe329c791a64511093fe160bdfe70", kill_on_drop: false }`
[INFO] [stdout] 580ccd77fd5c2f8f111b7403c85c63fe531fe329c791a64511093fe160bdfe70