[INFO] fetching crate screenshot-rs 0.1.5...
[INFO] testing screenshot-rs-0.1.5 against 1.49.0 for beta-1.50-1
[INFO] extracting crate screenshot-rs 0.1.5 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate screenshot-rs 0.1.5 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate screenshot-rs 0.1.5
[INFO] finished tweaking crates.io crate screenshot-rs 0.1.5
[INFO] tweaked toml for crates.io crate screenshot-rs 0.1.5 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72e0c6de36fabc5ee51f6d26a0a42928d6bf4cea273ad050959d488a5b83bedd
[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" "72e0c6de36fabc5ee51f6d26a0a42928d6bf4cea273ad050959d488a5b83bedd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72e0c6de36fabc5ee51f6d26a0a42928d6bf4cea273ad050959d488a5b83bedd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72e0c6de36fabc5ee51f6d26a0a42928d6bf4cea273ad050959d488a5b83bedd", kill_on_drop: false }`
[INFO] [stdout] 72e0c6de36fabc5ee51f6d26a0a42928d6bf4cea273ad050959d488a5b83bedd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 797e9d5c5ebc67f6c08418cafb6ddc10c461fd42375989a52b6ce47aea3c4e75
[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" "797e9d5c5ebc67f6c08418cafb6ddc10c461fd42375989a52b6ce47aea3c4e75", kill_on_drop: false }`
[INFO] [stderr]    Compiling screenshot-rs v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "797e9d5c5ebc67f6c08418cafb6ddc10c461fd42375989a52b6ce47aea3c4e75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "797e9d5c5ebc67f6c08418cafb6ddc10c461fd42375989a52b6ce47aea3c4e75", kill_on_drop: false }`
[INFO] [stdout] 797e9d5c5ebc67f6c08418cafb6ddc10c461fd42375989a52b6ce47aea3c4e75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6e79a3164f5cf7e1a067b2214bcc6b4bcfd4b63eac0b05e921459e4ba6390ed
[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" "e6e79a3164f5cf7e1a067b2214bcc6b4bcfd4b63eac0b05e921459e4ba6390ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling screenshot-rs v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "e6e79a3164f5cf7e1a067b2214bcc6b4bcfd4b63eac0b05e921459e4ba6390ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6e79a3164f5cf7e1a067b2214bcc6b4bcfd4b63eac0b05e921459e4ba6390ed", kill_on_drop: false }`
[INFO] [stdout] e6e79a3164f5cf7e1a067b2214bcc6b4bcfd4b63eac0b05e921459e4ba6390ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 354cc411c8fe96c573938fd41bfd56513362e05ab4526675fffbb5c53101b9cd
[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" "354cc411c8fe96c573938fd41bfd56513362e05ab4526675fffbb5c53101b9cd", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/screenshot_rs-eb91f353fc5e9cab
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests screenshot-rs
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "354cc411c8fe96c573938fd41bfd56513362e05ab4526675fffbb5c53101b9cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "354cc411c8fe96c573938fd41bfd56513362e05ab4526675fffbb5c53101b9cd", kill_on_drop: false }`
[INFO] [stdout] 354cc411c8fe96c573938fd41bfd56513362e05ab4526675fffbb5c53101b9cd