[INFO] fetching crate pngenc 0.1.1...
[INFO] checking pngenc-0.1.1 against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] extracting crate pngenc 0.1.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate pngenc 0.1.1
[INFO] finished tweaking crates.io crate pngenc 0.1.1
[INFO] tweaked toml for crates.io crate pngenc 0.1.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pngenc 0.1.1 on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate pngenc 0.1.1 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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63b9f1603ff5d60c40dffe803cf42e45e7f7b0774a27097a8252839004033342
[INFO] running `Command { std: "docker" "start" "-a" "63b9f1603ff5d60c40dffe803cf42e45e7f7b0774a27097a8252839004033342", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63b9f1603ff5d60c40dffe803cf42e45e7f7b0774a27097a8252839004033342", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63b9f1603ff5d60c40dffe803cf42e45e7f7b0774a27097a8252839004033342", kill_on_drop: false }`
[INFO] [stdout] 63b9f1603ff5d60c40dffe803cf42e45e7f7b0774a27097a8252839004033342
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89b22ab19b794de0113c824db7dd5979cb8c3af966c9cf525d4c25c64f67ba9d
[INFO] running `Command { std: "docker" "start" "-a" "89b22ab19b794de0113c824db7dd5979cb8c3af966c9cf525d4c25c64f67ba9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]     Checking atools v0.1.1
[INFO] [stderr]     Checking array_chunks v1.0.0
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking pngenc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking png v0.17.13
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `Command { std: "docker" "inspect" "89b22ab19b794de0113c824db7dd5979cb8c3af966c9cf525d4c25c64f67ba9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89b22ab19b794de0113c824db7dd5979cb8c3af966c9cf525d4c25c64f67ba9d", kill_on_drop: false }`
[INFO] [stdout] 89b22ab19b794de0113c824db7dd5979cb8c3af966c9cf525d4c25c64f67ba9d
