[INFO] fetching crate kus 0.1.0...
[INFO] testing kus-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate kus 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate kus 0.1.0 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 kus 0.1.0
[INFO] finished tweaking crates.io crate kus 0.1.0
[INFO] tweaked toml for crates.io crate kus 0.1.0 written to /workspace/builds/worker-0/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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] b592dd08b9415525af13022f65b828ca928193c177f73f334afd42275b52dbea
[INFO] running `Command { std: "docker" "start" "-a" "b592dd08b9415525af13022f65b828ca928193c177f73f334afd42275b52dbea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b592dd08b9415525af13022f65b828ca928193c177f73f334afd42275b52dbea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b592dd08b9415525af13022f65b828ca928193c177f73f334afd42275b52dbea", kill_on_drop: false }`
[INFO] [stdout] b592dd08b9415525af13022f65b828ca928193c177f73f334afd42275b52dbea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 1062b0e8e1409850dcd40165b73a2ad2cb4b405766e7922c15e1b1f6c38b08e7
[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" "1062b0e8e1409850dcd40165b73a2ad2cb4b405766e7922c15e1b1f6c38b08e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling kus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "1062b0e8e1409850dcd40165b73a2ad2cb4b405766e7922c15e1b1f6c38b08e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1062b0e8e1409850dcd40165b73a2ad2cb4b405766e7922c15e1b1f6c38b08e7", kill_on_drop: false }`
[INFO] [stdout] 1062b0e8e1409850dcd40165b73a2ad2cb4b405766e7922c15e1b1f6c38b08e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 520c4b0fe7e6cf22d8110f67c5f8b675f86fc828bc9110ea96e7e966b6d5e376
[INFO] running `Command { std: "docker" "start" "-a" "520c4b0fe7e6cf22d8110f67c5f8b675f86fc828bc9110ea96e7e966b6d5e376", kill_on_drop: false }`
[INFO] [stderr]    Compiling kus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "520c4b0fe7e6cf22d8110f67c5f8b675f86fc828bc9110ea96e7e966b6d5e376", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "520c4b0fe7e6cf22d8110f67c5f8b675f86fc828bc9110ea96e7e966b6d5e376", kill_on_drop: false }`
[INFO] [stdout] 520c4b0fe7e6cf22d8110f67c5f8b675f86fc828bc9110ea96e7e966b6d5e376
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 4d53ccfd4b29e2c997e0e422158c8350d339f572ccedd1b9db74e01e3e7caf42
[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" "4d53ccfd4b29e2c997e0e422158c8350d339f572ccedd1b9db74e01e3e7caf42", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/kus-b45a0dd93f911e5c
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stderr]    Doc-tests kus
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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" "4d53ccfd4b29e2c997e0e422158c8350d339f572ccedd1b9db74e01e3e7caf42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d53ccfd4b29e2c997e0e422158c8350d339f572ccedd1b9db74e01e3e7caf42", kill_on_drop: false }`
[INFO] [stdout] 4d53ccfd4b29e2c997e0e422158c8350d339f572ccedd1b9db74e01e3e7caf42