[INFO] fetching crate laska 0.0.0...
[INFO] testing laska-0.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate laska 0.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate laska 0.0.0 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 laska 0.0.0
[INFO] finished tweaking crates.io crate laska 0.0.0
[INFO] tweaked toml for crates.io crate laska 0.0.0 written to /workspace/builds/worker-6/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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] f26872db62e2a292f1e35e5dcfed32d9fa7b470b84967cee2186e4ce475d2ed2
[INFO] running `Command { std: "docker" "start" "-a" "f26872db62e2a292f1e35e5dcfed32d9fa7b470b84967cee2186e4ce475d2ed2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f26872db62e2a292f1e35e5dcfed32d9fa7b470b84967cee2186e4ce475d2ed2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f26872db62e2a292f1e35e5dcfed32d9fa7b470b84967cee2186e4ce475d2ed2", kill_on_drop: false }`
[INFO] [stdout] f26872db62e2a292f1e35e5dcfed32d9fa7b470b84967cee2186e4ce475d2ed2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] d6d03d232c0097314ba52ed59408dd1617b119577c1961f768fb7f5b5f76af0a
[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" "d6d03d232c0097314ba52ed59408dd1617b119577c1961f768fb7f5b5f76af0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling laska v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "d6d03d232c0097314ba52ed59408dd1617b119577c1961f768fb7f5b5f76af0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6d03d232c0097314ba52ed59408dd1617b119577c1961f768fb7f5b5f76af0a", kill_on_drop: false }`
[INFO] [stdout] d6d03d232c0097314ba52ed59408dd1617b119577c1961f768fb7f5b5f76af0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 6d719d0390e1824514978f210bda8f0a200ccbcdf8d7ec2d64e3ff4755376936
[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" "6d719d0390e1824514978f210bda8f0a200ccbcdf8d7ec2d64e3ff4755376936", kill_on_drop: false }`
[INFO] [stderr]    Compiling laska v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "6d719d0390e1824514978f210bda8f0a200ccbcdf8d7ec2d64e3ff4755376936", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d719d0390e1824514978f210bda8f0a200ccbcdf8d7ec2d64e3ff4755376936", kill_on_drop: false }`
[INFO] [stdout] 6d719d0390e1824514978f210bda8f0a200ccbcdf8d7ec2d64e3ff4755376936
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b01de86dac10e0421ad0bdb45f5c9a0fdc3aba9a3084c40af5edb7428c9240dd
[INFO] running `Command { std: "docker" "start" "-a" "b01de86dac10e0421ad0bdb45f5c9a0fdc3aba9a3084c40af5edb7428c9240dd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/laska-61898b5316a659db
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests laska
[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] [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" "b01de86dac10e0421ad0bdb45f5c9a0fdc3aba9a3084c40af5edb7428c9240dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b01de86dac10e0421ad0bdb45f5c9a0fdc3aba9a3084c40af5edb7428c9240dd", kill_on_drop: false }`
[INFO] [stdout] b01de86dac10e0421ad0bdb45f5c9a0fdc3aba9a3084c40af5edb7428c9240dd