[INFO] cloning repository https://github.com/sam-barr/png-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sam-barr/png-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsam-barr%2Fpng-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsam-barr%2Fpng-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a331adaeb9f24131171367f0d28d3ce68f2f7db9
[INFO] checking sam-barr/png-rs against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsam-barr%2Fpng-rs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sam-barr/png-rs on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sam-barr/png-rs
[INFO] finished tweaking git repo https://github.com/sam-barr/png-rs
[INFO] tweaked toml for git repo https://github.com/sam-barr/png-rs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/sam-barr/png-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded luminance-windowing v0.9.3
[INFO] [stderr]   Downloaded luminance-derive v0.6.3
[INFO] [stderr]   Downloaded luminance-glfw v0.15.0
[INFO] [stderr]   Downloaded luminance v0.43.2
[INFO] [stderr]   Downloaded luminance-gl v0.16.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 784332c028542dc7289c1b15013e33b197fddcccaee8f125c6b642ee9f0aa115
[INFO] running `Command { std: "docker" "start" "-a" "784332c028542dc7289c1b15013e33b197fddcccaee8f125c6b642ee9f0aa115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "784332c028542dc7289c1b15013e33b197fddcccaee8f125c6b642ee9f0aa115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "784332c028542dc7289c1b15013e33b197fddcccaee8f125c6b642ee9f0aa115", kill_on_drop: false }`
[INFO] [stdout] 784332c028542dc7289c1b15013e33b197fddcccaee8f125c6b642ee9f0aa115
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61c9ffd0c43c54c779ced73c0c4dfee5aeb8a8e82790052accec3c58d3c53cba
[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" "61c9ffd0c43c54c779ced73c0c4dfee5aeb8a8e82790052accec3c58d3c53cba", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling libc v0.2.90
[INFO] [stderr]    Compiling argh_shared v0.1.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling glfw-sys v3.3.2
[INFO] [stderr]     Checking bitflags v1.2.1
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]    Compiling gl v0.14.0
[INFO] [stderr]     Checking glfw v0.41.0
[INFO] [stderr]    Compiling luminance-derive v0.6.3
[INFO] [stderr]    Compiling argh_derive v0.1.4
[INFO] [stderr]     Checking luminance v0.43.2
[INFO] [stderr]     Checking argh v0.1.4
[INFO] [stderr]     Checking luminance-windowing v0.9.3
[INFO] [stderr]     Checking luminance-gl v0.16.1
[INFO] [stderr]     Checking luminance-glfw v0.15.0
[INFO] [stderr]     Checking png-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.46s
[INFO] running `Command { std: "docker" "inspect" "61c9ffd0c43c54c779ced73c0c4dfee5aeb8a8e82790052accec3c58d3c53cba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61c9ffd0c43c54c779ced73c0c4dfee5aeb8a8e82790052accec3c58d3c53cba", kill_on_drop: false }`
[INFO] [stdout] 61c9ffd0c43c54c779ced73c0c4dfee5aeb8a8e82790052accec3c58d3c53cba