[INFO] cloning repository https://github.com/armadillojoe/PNGPuzzle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/armadillojoe/PNGPuzzle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farmadillojoe%2FPNGPuzzle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farmadillojoe%2FPNGPuzzle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6cd010b284bba87149932397c5ba14e141ac4268
[INFO] checking armadillojoe/PNGPuzzle against try#8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farmadillojoe%2FPNGPuzzle" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/armadillojoe/PNGPuzzle on toolchain 8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/armadillojoe/PNGPuzzle
[INFO] finished tweaking git repo https://github.com/armadillojoe/PNGPuzzle
[INFO] tweaked toml for git repo https://github.com/armadillojoe/PNGPuzzle written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/armadillojoe/PNGPuzzle already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crc v1.3.0
[INFO] [stderr]   Downloaded lazy_static v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b6dc7fcd18ec6627afb8f51ca41a959dfcd027ba2b0a8cd8d447b9d08b3ae3f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3b6dc7fcd18ec6627afb8f51ca41a959dfcd027ba2b0a8cd8d447b9d08b3ae3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b6dc7fcd18ec6627afb8f51ca41a959dfcd027ba2b0a8cd8d447b9d08b3ae3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b6dc7fcd18ec6627afb8f51ca41a959dfcd027ba2b0a8cd8d447b9d08b3ae3f", kill_on_drop: false }`
[INFO] [stdout] 3b6dc7fcd18ec6627afb8f51ca41a959dfcd027ba2b0a8cd8d447b9d08b3ae3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49433a3193fbbd32e579ae2549994cb2aaa11448aaa65e6986b923738ad4ef77
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "49433a3193fbbd32e579ae2549994cb2aaa11448aaa65e6986b923738ad4ef77", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v0.2.1
[INFO] [stderr]     Checking crc v1.3.0
[INFO] [stderr]     Checking pngpuzzle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "49433a3193fbbd32e579ae2549994cb2aaa11448aaa65e6986b923738ad4ef77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49433a3193fbbd32e579ae2549994cb2aaa11448aaa65e6986b923738ad4ef77", kill_on_drop: false }`
[INFO] [stdout] 49433a3193fbbd32e579ae2549994cb2aaa11448aaa65e6986b923738ad4ef77