[INFO] fetching crate kodama 0.2.3...
[INFO] testing kodama-0.2.3 against 1.49.0 for beta-1.50-1
[INFO] extracting crate kodama 0.2.3 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate kodama 0.2.3 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 kodama 0.2.3
[INFO] finished tweaking crates.io crate kodama 0.2.3
[INFO] tweaked toml for crates.io crate kodama 0.2.3 written to /workspace/builds/worker-8/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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] e5a9f1d3725d20455291b3659cb1b7c9827f010d8ec64322c1dbf6ebc88a6721
[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" "e5a9f1d3725d20455291b3659cb1b7c9827f010d8ec64322c1dbf6ebc88a6721", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5a9f1d3725d20455291b3659cb1b7c9827f010d8ec64322c1dbf6ebc88a6721", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5a9f1d3725d20455291b3659cb1b7c9827f010d8ec64322c1dbf6ebc88a6721", kill_on_drop: false }`
[INFO] [stdout] e5a9f1d3725d20455291b3659cb1b7c9827f010d8ec64322c1dbf6ebc88a6721
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 6abde5ad503df963dda560a2bd4c2b2a75409777d847a4ff7e4128f3628a719e
[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" "6abde5ad503df963dda560a2bd4c2b2a75409777d847a4ff7e4128f3628a719e", kill_on_drop: false }`
[INFO] [stderr]    Compiling kodama v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.75s
[INFO] running `Command { std: "docker" "inspect" "6abde5ad503df963dda560a2bd4c2b2a75409777d847a4ff7e4128f3628a719e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6abde5ad503df963dda560a2bd4c2b2a75409777d847a4ff7e4128f3628a719e", kill_on_drop: false }`
[INFO] [stdout] 6abde5ad503df963dda560a2bd4c2b2a75409777d847a4ff7e4128f3628a719e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 8f1e4996cf12d965088eeeb7420d866107ad908ddfce32d22c6c7b3b1106a680
[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" "8f1e4996cf12d965088eeeb7420d866107ad908ddfce32d22c6c7b3b1106a680", kill_on_drop: false }`
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling kodama v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.47s
[INFO] running `Command { std: "docker" "inspect" "8f1e4996cf12d965088eeeb7420d866107ad908ddfce32d22c6c7b3b1106a680", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f1e4996cf12d965088eeeb7420d866107ad908ddfce32d22c6c7b3b1106a680", kill_on_drop: false }`
[INFO] [stdout] 8f1e4996cf12d965088eeeb7420d866107ad908ddfce32d22c6c7b3b1106a680
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] a181776a85a2dd816b5f967e620aad50e04be0825db01f4ecd8a6a862a8c0cc3
[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" "a181776a85a2dd816b5f967e620aad50e04be0825db01f4ecd8a6a862a8c0cc3", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/kodama-dbda8f38178adf59
[INFO] [stdout] 
[INFO] [stdout] running 36 tests
[INFO] [stdout] test active::tests::contains ... ok
[INFO] [stdout] test active::tests::iter ... ok
[INFO] [stdout] test chain::tests::prop_nnchain_weighted_primitive ... ok
[INFO] [stdout] test active::tests::iter_range ... ok
[INFO] [stdout] test generic::tests::prop_generic_centroid_primitive ... ok
[INFO] [stdout] test primitive::tests::argmin_simple ... ok
[INFO] [stdout] test primitive::tests::argmin_smallest ... ok
[INFO] [stdout] test generic::tests::prop_generic_median_primitive ... ok
[INFO] [stdout] test generic::tests::prop_generic_ward_nnchain ... ok
[INFO] [stdout] test generic::tests::prop_generic_ward_primitive ... ok
[INFO] [stdout] test chain::tests::prop_nnchain_ward_primitive ... ok
[INFO] [stdout] test generic::tests::prop_generic_complete_primitive ... ok
[INFO] [stdout] test queue::tests::one ... ok
[INFO] [stdout] test chain::tests::prop_nnchain_single_primitive ... ok
[INFO] [stdout] test generic::tests::prop_generic_average_primitive ... ok
[INFO] [stdout] test chain::tests::prop_nnchain_average_primitive ... ok
[INFO] [stdout] test queue::tests::empty ... ok
[INFO] [stdout] test generic::tests::prop_generic_single_nnchain ... ok
[INFO] [stdout] test generic::tests::prop_generic_complete_nnchain ... ok
[INFO] [stdout] test generic::tests::prop_generic_single_primitive ... ok
[INFO] [stdout] test generic::tests::prop_generic_weighted_nnchain ... ok
[INFO] [stdout] test generic::tests::prop_generic_average_nnchain ... ok
[INFO] [stdout] test primitive::tests::argmin_zero ... ok
[INFO] [stdout] test union::tests::relabel ... ok
[INFO] [stdout] test union::tests::union_is_idempotent ... ok
[INFO] [stdout] test queue::tests::simple ... ok
[INFO] [stdout] test queue::tests::two ... ok
[INFO] [stdout] test union::tests::trivial_find ... ok
[INFO] [stdout] test union::tests::find_with_unions_all_at_once ... ok
[INFO] [stdout] test union::tests::find_with_unions ... ok
[INFO] [stdout] test chain::tests::prop_nnchain_complete_primitive ... ok
[INFO] [stdout] test generic::tests::prop_generic_weighted_primitive ... ok
[INFO] [stdout] test queue::tests::prop_heap_invariant ... ok
[INFO] [stdout] test queue::tests::prop_heapify_heap_invariant ... ok
[INFO] [stdout] test spanning::tests::prop_mst_generic ... ok
[INFO] [stderr]    Doc-tests kodama
[INFO] [stdout] test spanning::tests::prop_mst_primitive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 36 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 37) ... ok
[INFO] [stdout] test src/lib.rs - (line 81) ... ok
[INFO] [stdout] test src/lib.rs - (line 138) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a181776a85a2dd816b5f967e620aad50e04be0825db01f4ecd8a6a862a8c0cc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a181776a85a2dd816b5f967e620aad50e04be0825db01f4ecd8a6a862a8c0cc3", kill_on_drop: false }`
[INFO] [stdout] a181776a85a2dd816b5f967e620aad50e04be0825db01f4ecd8a6a862a8c0cc3