[INFO] fetching crate libass 0.2.0...
[INFO] testing libass-0.2.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate libass 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate libass 0.2.0 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 libass 0.2.0
[INFO] finished tweaking crates.io crate libass 0.2.0
[INFO] tweaked toml for crates.io crate libass 0.2.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate libass 0.2.0 already has a lockfile, it will not be regenerated
[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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9dce49718d62e47c7955df4a60e52b24a3f32e7d694c1178d0785e2e559bf414
[INFO] running `Command { std: "docker" "start" "-a" "9dce49718d62e47c7955df4a60e52b24a3f32e7d694c1178d0785e2e559bf414", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9dce49718d62e47c7955df4a60e52b24a3f32e7d694c1178d0785e2e559bf414", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dce49718d62e47c7955df4a60e52b24a3f32e7d694c1178d0785e2e559bf414", kill_on_drop: false }`
[INFO] [stdout] 9dce49718d62e47c7955df4a60e52b24a3f32e7d694c1178d0785e2e559bf414
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9e9a5ad729cd4a027f2d1b85e2b28aa4ce52afbae7a1d1402cafc3beb7dad279
[INFO] running `Command { std: "docker" "start" "-a" "9e9a5ad729cd4a027f2d1b85e2b28aa4ce52afbae7a1d1402cafc3beb7dad279", kill_on_drop: false }`
[INFO] [stderr]    Compiling bindgen v0.50.1
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling libass-sys v0.1.2
[INFO] [stderr]    Compiling libass v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.33s
[INFO] running `Command { std: "docker" "inspect" "9e9a5ad729cd4a027f2d1b85e2b28aa4ce52afbae7a1d1402cafc3beb7dad279", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e9a5ad729cd4a027f2d1b85e2b28aa4ce52afbae7a1d1402cafc3beb7dad279", kill_on_drop: false }`
[INFO] [stdout] 9e9a5ad729cd4a027f2d1b85e2b28aa4ce52afbae7a1d1402cafc3beb7dad279
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] d48c7bf4e50d27a401059a1283c5f16f792953b0270c7d67f7c4b6961d4f41d8
[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" "d48c7bf4e50d27a401059a1283c5f16f792953b0270c7d67f7c4b6961d4f41d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libass v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.64s
[INFO] running `Command { std: "docker" "inspect" "d48c7bf4e50d27a401059a1283c5f16f792953b0270c7d67f7c4b6961d4f41d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d48c7bf4e50d27a401059a1283c5f16f792953b0270c7d67f7c4b6961d4f41d8", kill_on_drop: false }`
[INFO] [stdout] d48c7bf4e50d27a401059a1283c5f16f792953b0270c7d67f7c4b6961d4f41d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 9dd074222403e91ddd8fe3133fab7b00f3ee9223fea2ca3860826f40ff0617e4
[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" "9dd074222403e91ddd8fe3133fab7b00f3ee9223fea2ca3860826f40ff0617e4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/libass-16d0f517fa309c2e
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests libass
[INFO] [stdout] 
[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" "9dd074222403e91ddd8fe3133fab7b00f3ee9223fea2ca3860826f40ff0617e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9dd074222403e91ddd8fe3133fab7b00f3ee9223fea2ca3860826f40ff0617e4", kill_on_drop: false }`
[INFO] [stdout] 9dd074222403e91ddd8fe3133fab7b00f3ee9223fea2ca3860826f40ff0617e4