[INFO] fetching crate kodama 0.2.3...
[INFO] testing kodama-0.2.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate kodama 0.2.3 into /workspace/builds/worker-109/source
[INFO] validating manifest of crates.io crate kodama 0.2.3 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-109/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a5ef9f8bcc26ec1a171152099571da57788b9c959fa3e80af70ed5929da8c75
[INFO] running `Command { std: "docker" "start" "-a" "2a5ef9f8bcc26ec1a171152099571da57788b9c959fa3e80af70ed5929da8c75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a5ef9f8bcc26ec1a171152099571da57788b9c959fa3e80af70ed5929da8c75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a5ef9f8bcc26ec1a171152099571da57788b9c959fa3e80af70ed5929da8c75", kill_on_drop: false }`
[INFO] [stdout] 2a5ef9f8bcc26ec1a171152099571da57788b9c959fa3e80af70ed5929da8c75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10ab1832d02307223f4b3dcaf4dbc032463935bea78ae3b36a06cd2137860412
[INFO] running `Command { std: "docker" "start" "-a" "10ab1832d02307223f4b3dcaf4dbc032463935bea78ae3b36a06cd2137860412", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling kodama v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.38s
[INFO] running `Command { std: "docker" "inspect" "10ab1832d02307223f4b3dcaf4dbc032463935bea78ae3b36a06cd2137860412", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10ab1832d02307223f4b3dcaf4dbc032463935bea78ae3b36a06cd2137860412", kill_on_drop: false }`
[INFO] [stdout] 10ab1832d02307223f4b3dcaf4dbc032463935bea78ae3b36a06cd2137860412
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d33529488b0599fe9918d7883df0f7d5d97f35ad1b4cc966125aa165cce0201
[INFO] running `Command { std: "docker" "start" "-a" "9d33529488b0599fe9918d7883df0f7d5d97f35ad1b4cc966125aa165cce0201", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[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 9.42s
[INFO] running `Command { std: "docker" "inspect" "9d33529488b0599fe9918d7883df0f7d5d97f35ad1b4cc966125aa165cce0201", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d33529488b0599fe9918d7883df0f7d5d97f35ad1b4cc966125aa165cce0201", kill_on_drop: false }`
[INFO] [stdout] 9d33529488b0599fe9918d7883df0f7d5d97f35ad1b4cc966125aa165cce0201
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 47387f04de73f877faa214cd2699cab31e01e2081e8f8444e7603d9caf18e09e
[INFO] running `Command { std: "docker" "start" "-a" "47387f04de73f877faa214cd2699cab31e01e2081e8f8444e7603d9caf18e09e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kodama-58a5f816259b9123)
[INFO] [stdout] 
[INFO] [stdout] running 36 tests
[INFO] [stdout] test active::tests::contains ... ok
[INFO] [stdout] test active::tests::iter_range ... ok
[INFO] [stdout] test active::tests::iter ... ok
[INFO] [stdout] test primitive::tests::argmin_simple ... ok
[INFO] [stdout] test primitive::tests::argmin_zero ... ok
[INFO] [stdout] test primitive::tests::argmin_smallest ... ok
[INFO] [stdout] test queue::tests::one ... ok
[INFO] [stdout] test queue::tests::empty ... ok
[INFO] [stdout] test queue::tests::simple ... ok
[INFO] [stdout] test queue::tests::two ... ok
[INFO] [stdout] test union::tests::relabel ... ok
[INFO] [stdout] test union::tests::find_with_unions_all_at_once ... ok
[INFO] [stdout] test union::tests::trivial_find ... ok
[INFO] [stdout] test union::tests::find_with_unions ... ok
[INFO] [stdout] test union::tests::union_is_idempotent ... ok
[INFO] [stdout] test queue::tests::prop_heapify_heap_invariant ... ok
[INFO] [stdout] test queue::tests::prop_heap_invariant ... ok
[INFO] [stdout] test generic::tests::prop_generic_centroid_primitive ... ok
[INFO] [stdout] test chain::tests::prop_nnchain_complete_primitive ... ok
[INFO] [stdout] test chain::tests::prop_nnchain_average_primitive ... ok
[INFO] [stdout] test generic::tests::prop_generic_median_primitive ... ok
[INFO] [stdout] test chain::tests::prop_nnchain_ward_primitive ... ok
[INFO] [stdout] test generic::tests::prop_generic_complete_nnchain ... ok
[INFO] [stdout] test generic::tests::prop_generic_single_nnchain ... ok
[INFO] [stdout] test generic::tests::prop_generic_complete_primitive ... ok
[INFO] [stdout] test chain::tests::prop_nnchain_weighted_primitive ... ok
[INFO] [stdout] test generic::tests::prop_generic_average_primitive ... ok
[INFO] [stdout] test generic::tests::prop_generic_ward_primitive ... ok
[INFO] [stdout] test generic::tests::prop_generic_ward_nnchain ... ok
[INFO] [stdout] test generic::tests::prop_generic_average_nnchain ... ok
[INFO] [stdout] test generic::tests::prop_generic_single_primitive ... ok
[INFO] [stdout] test chain::tests::prop_nnchain_single_primitive ... ok
[INFO] [stdout] test generic::tests::prop_generic_weighted_nnchain ... ok
[INFO] [stdout] test generic::tests::prop_generic_weighted_primitive ... ok
[INFO] [stdout] test spanning::tests::prop_mst_primitive ... ok
[INFO] [stderr]    Doc-tests kodama
[INFO] [stdout] test spanning::tests::prop_mst_generic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 36 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[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; finished in 0.77s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "47387f04de73f877faa214cd2699cab31e01e2081e8f8444e7603d9caf18e09e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47387f04de73f877faa214cd2699cab31e01e2081e8f8444e7603d9caf18e09e", kill_on_drop: false }`
[INFO] [stdout] 47387f04de73f877faa214cd2699cab31e01e2081e8f8444e7603d9caf18e09e