[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] 1f151952419a05da78d2ab44ee2ec9b7e583bbc9
[INFO] checking sam-barr/png-rs against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsam-barr%2Fpng-rs" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sam-barr/png-rs on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", 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-5/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" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "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] d295f2ab7ebb313cd3e929d2b1cf6eeb2a915a5fe8e0414204bb463ca1383678
[INFO] running `Command { std: "docker" "start" "-a" "d295f2ab7ebb313cd3e929d2b1cf6eeb2a915a5fe8e0414204bb463ca1383678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d295f2ab7ebb313cd3e929d2b1cf6eeb2a915a5fe8e0414204bb463ca1383678", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d295f2ab7ebb313cd3e929d2b1cf6eeb2a915a5fe8e0414204bb463ca1383678", kill_on_drop: false }`
[INFO] [stdout] d295f2ab7ebb313cd3e929d2b1cf6eeb2a915a5fe8e0414204bb463ca1383678
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] cb0f673b73a12bab203080d2f4209e4b857214a1b464f010083e434563912d9c
[INFO] running `Command { std: "docker" "start" "-a" "cb0f673b73a12bab203080d2f4209e4b857214a1b464f010083e434563912d9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling cc v1.0.59
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking luminance v0.41.0
[INFO] [stderr]    Compiling argh_shared v0.1.1
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]     Checking luminance-windowing v0.9.1
[INFO] [stderr]    Compiling glfw-sys v3.3.2
[INFO] [stderr]    Compiling gl v0.14.0
[INFO] [stderr]     Checking glfw v0.39.1
[INFO] [stderr]    Compiling argh_derive v0.1.1
[INFO] [stderr]    Compiling luminance-derive v0.6.1
[INFO] [stderr]     Checking argh v0.1.3
[INFO] [stderr]     Checking luminance-gl v0.14.1
[INFO] [stderr]     Checking luminance-glfw v0.13.1
[INFO] [stderr]     Checking png-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.64s
[INFO] running `Command { std: "docker" "inspect" "cb0f673b73a12bab203080d2f4209e4b857214a1b464f010083e434563912d9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb0f673b73a12bab203080d2f4209e4b857214a1b464f010083e434563912d9c", kill_on_drop: false }`
[INFO] [stdout] cb0f673b73a12bab203080d2f4209e4b857214a1b464f010083e434563912d9c