[INFO] fetching crate dsar 0.2.0...
[INFO] testing dsar-0.2.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate dsar 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate dsar 0.2.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dsar 0.2.0
[INFO] finished tweaking crates.io crate dsar 0.2.0
[INFO] tweaked toml for crates.io crate dsar 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6fa5c056b11460ac59367297e25e69dda1abedd2b9bf9a2caf2ca89c2540e6a
[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" "b6fa5c056b11460ac59367297e25e69dda1abedd2b9bf9a2caf2ca89c2540e6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6fa5c056b11460ac59367297e25e69dda1abedd2b9bf9a2caf2ca89c2540e6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6fa5c056b11460ac59367297e25e69dda1abedd2b9bf9a2caf2ca89c2540e6a", kill_on_drop: false }`
[INFO] [stdout] b6fa5c056b11460ac59367297e25e69dda1abedd2b9bf9a2caf2ca89c2540e6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b7caf14b7c41f44170d5af5032c50998c59c3d9fdf8bef1fa59907c87327baf
[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" "1b7caf14b7c41f44170d5af5032c50998c59c3d9fdf8bef1fa59907c87327baf", kill_on_drop: false }`
[INFO] [stderr]    Compiling dsar v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "1b7caf14b7c41f44170d5af5032c50998c59c3d9fdf8bef1fa59907c87327baf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b7caf14b7c41f44170d5af5032c50998c59c3d9fdf8bef1fa59907c87327baf", kill_on_drop: false }`
[INFO] [stdout] 1b7caf14b7c41f44170d5af5032c50998c59c3d9fdf8bef1fa59907c87327baf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 978c916749a913e2054f0a9b356883c86ae2e2d542db2fd65b4487798a4bd8f7
[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" "978c916749a913e2054f0a9b356883c86ae2e2d542db2fd65b4487798a4bd8f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling dsar v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "978c916749a913e2054f0a9b356883c86ae2e2d542db2fd65b4487798a4bd8f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "978c916749a913e2054f0a9b356883c86ae2e2d542db2fd65b4487798a4bd8f7", kill_on_drop: false }`
[INFO] [stdout] 978c916749a913e2054f0a9b356883c86ae2e2d542db2fd65b4487798a4bd8f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0a1d2377b4368e08a1b7a0e968377b5ad3dc1683288db3b9fe090288c08f1b69
[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" "0a1d2377b4368e08a1b7a0e968377b5ad3dc1683288db3b9fe090288c08f1b69", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 5 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dsar-7714ba18c2695651
[INFO] [stdout] test tests::test_heap_sort ... ok
[INFO] [stderr]    Doc-tests dsar
[INFO] [stdout] test tests::test_insertion_sort ... ok
[INFO] [stdout] test tests::test_max_subarray_sum ... ok
[INFO] [stdout] test tests::test_priority_queue ... ok
[INFO] [stdout] test tests::test_merge_sort ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0a1d2377b4368e08a1b7a0e968377b5ad3dc1683288db3b9fe090288c08f1b69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a1d2377b4368e08a1b7a0e968377b5ad3dc1683288db3b9fe090288c08f1b69", kill_on_drop: false }`
[INFO] [stdout] 0a1d2377b4368e08a1b7a0e968377b5ad3dc1683288db3b9fe090288c08f1b69