[INFO] fetching crate tree-edit-distance 0.3.0...
[INFO] testing tree-edit-distance-0.3.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate tree-edit-distance 0.3.0 into /workspace/builds/worker-22/source
[INFO] validating manifest of crates.io crate tree-edit-distance 0.3.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tree-edit-distance 0.3.0
[INFO] finished tweaking crates.io crate tree-edit-distance 0.3.0
[INFO] tweaked toml for crates.io crate tree-edit-distance 0.3.0 written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded structmeta v0.1.4
[INFO] [stderr]   Downloaded structmeta-derive v0.1.4
[INFO] [stderr]   Downloaded json v0.12.4
[INFO] [stderr]   Downloaded derive_more v0.99.17
[INFO] [stderr]   Downloaded integer-sqrt v0.1.5
[INFO] [stderr]   Downloaded pathfinding v2.2.3
[INFO] [stderr]   Downloaded convert_case v0.4.0
[INFO] [stderr]   Downloaded assert_matches v1.5.0
[INFO] [stderr]   Downloaded test-strategy v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01a72761b57f790c7edff195e480e37a1ba8637e426106af6ab8183fc52e5342
[INFO] running `Command { std: "docker" "start" "-a" "01a72761b57f790c7edff195e480e37a1ba8637e426106af6ab8183fc52e5342", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01a72761b57f790c7edff195e480e37a1ba8637e426106af6ab8183fc52e5342", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01a72761b57f790c7edff195e480e37a1ba8637e426106af6ab8183fc52e5342", kill_on_drop: false }`
[INFO] [stdout] 01a72761b57f790c7edff195e480e37a1ba8637e426106af6ab8183fc52e5342
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e01bab471f44be747762d7b72ed2d1c4b6545922b852a077ad3792f7c0f3d31f
[INFO] running `Command { std: "docker" "start" "-a" "e01bab471f44be747762d7b72ed2d1c4b6545922b852a077ad3792f7c0f3d31f", kill_on_drop: false }`
[INFO] [stderr]    Compiling fixedbitset v0.4.1
[INFO] [stderr]    Compiling integer-sqrt v0.1.5
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling pathfinding v2.2.3
[INFO] [stderr]    Compiling tree-edit-distance v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.78s
[INFO] running `Command { std: "docker" "inspect" "e01bab471f44be747762d7b72ed2d1c4b6545922b852a077ad3792f7c0f3d31f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e01bab471f44be747762d7b72ed2d1c4b6545922b852a077ad3792f7c0f3d31f", kill_on_drop: false }`
[INFO] [stdout] e01bab471f44be747762d7b72ed2d1c4b6545922b852a077ad3792f7c0f3d31f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27d6ae47ce8adb2cbcec9155cc937b2a165740f1598a79952f396646a5a6ea50
[INFO] running `Command { std: "docker" "start" "-a" "27d6ae47ce8adb2cbcec9155cc937b2a165740f1598a79952f396646a5a6ea50", 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] [stderr]    Compiling assert_matches v1.5.0
[INFO] [stderr]    Compiling structmeta-derive v0.1.4
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling proptest v1.0.0
[INFO] [stderr]    Compiling structmeta v0.1.4
[INFO] [stderr]    Compiling test-strategy v0.1.2
[INFO] [stderr]    Compiling tree-edit-distance v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.80s
[INFO] running `Command { std: "docker" "inspect" "27d6ae47ce8adb2cbcec9155cc937b2a165740f1598a79952f396646a5a6ea50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27d6ae47ce8adb2cbcec9155cc937b2a165740f1598a79952f396646a5a6ea50", kill_on_drop: false }`
[INFO] [stdout] 27d6ae47ce8adb2cbcec9155cc937b2a165740f1598a79952f396646a5a6ea50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c8c0861dd84b511fca088c1fa051a46d9ae80683a22d4acdb7873df95bc98f61
[INFO] running `Command { std: "docker" "start" "-a" "c8c0861dd84b511fca088c1fa051a46d9ae80683a22d4acdb7873df95bc98f61", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tree_edit_distance-a440560404780386)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test cost::tests::cost_of_slice_equals_sum_of_costs ... ok
[INFO] [stdout] test memoize::tests::weight_is_preserved ... ok
[INFO] [stdout] test memoize::tests::kind_is_preserved ... ok
[INFO] [stdout] test tree::tests::count_equals_one_plus_sum_of_count_of_children ... ok
[INFO] [stdout] test tree::tests::cost_equals_weight_plus_sum_of_costs_of_children ... ok
[INFO] [stdout] test diff::tests::the_cost_between_identical_trees_is_zero ... ok
[INFO] [stdout] test memoize::tests::cost_is_memoized ... ok
[INFO] [stdout] test diff::tests::the_cost_is_at_most_equal_to_the_sum_of_costs ... ok
[INFO] [stdout] test diff::tests::the_number_of_edits_is_at_most_equal_to_the_total_number_of_nodes ... ok
[INFO] [stdout] test diff::tests::nodes_of_different_kinds_cannot_be_replaced ... ok
[INFO] [stdout] test diff::tests::the_cost_of_swapping_nodes_is_equal_to_the_sum_of_their_costs ... ok
[INFO] [stdout] test diff::tests::nodes_of_equal_kinds_can_be_replaced ... ok
[INFO] [stdout] test diff::tests::the_cost_of_replacing_nodes_does_not_depend_on_their_weights ... ok
[INFO] [stdout] test diff::tests::the_cost_is_always_minimized ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.72s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tree-edit-distance
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 13) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.76s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c8c0861dd84b511fca088c1fa051a46d9ae80683a22d4acdb7873df95bc98f61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8c0861dd84b511fca088c1fa051a46d9ae80683a22d4acdb7873df95bc98f61", kill_on_drop: false }`
[INFO] [stdout] c8c0861dd84b511fca088c1fa051a46d9ae80683a22d4acdb7873df95bc98f61