[INFO] fetching crate pack 0.4.0...
[INFO] testing pack-0.4.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate pack 0.4.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate pack 0.4.0 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 pack 0.4.0
[INFO] finished tweaking crates.io crate pack 0.4.0
[INFO] tweaked toml for crates.io crate pack 0.4.0 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] [stdout] 0fb9e88d8471da789df16e6619c9d82a0d0de43db4c29481b198a6fab67ea4d3
[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" "0fb9e88d8471da789df16e6619c9d82a0d0de43db4c29481b198a6fab67ea4d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fb9e88d8471da789df16e6619c9d82a0d0de43db4c29481b198a6fab67ea4d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fb9e88d8471da789df16e6619c9d82a0d0de43db4c29481b198a6fab67ea4d3", kill_on_drop: false }`
[INFO] [stdout] 0fb9e88d8471da789df16e6619c9d82a0d0de43db4c29481b198a6fab67ea4d3
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 44e4a83d5b99ddff2fa24321d5c0bbe89e0da6c1118a823a6430d452f96b3ae1
[INFO] running `Command { std: "docker" "start" "-a" "44e4a83d5b99ddff2fa24321d5c0bbe89e0da6c1118a823a6430d452f96b3ae1", kill_on_drop: false }`
[INFO] [stderr]    Compiling pack v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "44e4a83d5b99ddff2fa24321d5c0bbe89e0da6c1118a823a6430d452f96b3ae1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44e4a83d5b99ddff2fa24321d5c0bbe89e0da6c1118a823a6430d452f96b3ae1", kill_on_drop: false }`
[INFO] [stdout] 44e4a83d5b99ddff2fa24321d5c0bbe89e0da6c1118a823a6430d452f96b3ae1
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] db29d82d58e967f2c611318c6c14914dbf958e7d00aa49907d6c7166cdf18543
[INFO] running `Command { std: "docker" "start" "-a" "db29d82d58e967f2c611318c6c14914dbf958e7d00aa49907d6c7166cdf18543", kill_on_drop: false }`
[INFO] [stderr]    Compiling pack v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.21s
[INFO] running `Command { std: "docker" "inspect" "db29d82d58e967f2c611318c6c14914dbf958e7d00aa49907d6c7166cdf18543", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db29d82d58e967f2c611318c6c14914dbf958e7d00aa49907d6c7166cdf18543", kill_on_drop: false }`
[INFO] [stdout] db29d82d58e967f2c611318c6c14914dbf958e7d00aa49907d6c7166cdf18543
[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] [stdout] 037fc56046e71090cb33c4cc748d9647c9ff31731ddb7069ccc9690b7d4922a7
[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" "037fc56046e71090cb33c4cc748d9647c9ff31731ddb7069ccc9690b7d4922a7", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 16 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/pack-c980d879491ffe46
[INFO] [stdout] test puzzle::piece::position::tests::positions_are_equal_on_values ... ok
[INFO] [stderr]    Doc-tests pack
[INFO] [stdout] test puzzle::piece::entity::tests::piece_should_tranform ... ok
[INFO] [stdout] test puzzle::piece::template::tests::templates_should_return_less_than_24_pieces_for_symmetric_templates ... ok
[INFO] [stdout] test puzzle::piece::template::tests::templates_should_return_24_pieces_unsymmetric_templates ... ok
[INFO] [stdout] test puzzle::piece::template::tests::templates_are_equal_on_values ... ok
[INFO] [stdout] test puzzle::piece::entity::tests::piece_should_translate ... ok
[INFO] [stdout] test puzzle::pieces::tests::bag_should_iterate_over_collection ... ok
[INFO] [stdout] test puzzle::solver::tests::piece_should_fit_in_target ... ok
[INFO] [stdout] test puzzle::vector::tests::should_determine_vector_addition_of_tuple ... ok
[INFO] [stdout] test puzzle::solver::tests::solutions_should_display_nicely ... ok
[INFO] [stdout] test puzzle::vector::tests::should_determine_vector_addition_of_triple ... ok
[INFO] [stdout] test puzzle::solver::tests::solve_should_pack_pieces ... ok
[INFO] [stdout] test puzzle::vector::tests::should_determine_vector_difference_of_tuple ... ok
[INFO] [stdout] test puzzle::vector::tests::should_determine_vector_difference_of_triple ... ok
[INFO] [stdout] test util::target::tests::should_create_a_rectangle ... ok
[INFO] [stdout] test util::target::tests::should_create_a_brick ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 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" "037fc56046e71090cb33c4cc748d9647c9ff31731ddb7069ccc9690b7d4922a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "037fc56046e71090cb33c4cc748d9647c9ff31731ddb7069ccc9690b7d4922a7", kill_on_drop: false }`
[INFO] [stdout] 037fc56046e71090cb33c4cc748d9647c9ff31731ddb7069ccc9690b7d4922a7