[INFO] fetching crate tagged-tree 0.4.0...
[INFO] testing tagged-tree-0.4.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate tagged-tree 0.4.0 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate tagged-tree 0.4.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tagged-tree 0.4.0
[INFO] finished tweaking crates.io crate tagged-tree 0.4.0
[INFO] tweaked toml for crates.io crate tagged-tree 0.4.0 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mockall_derive v0.10.2
[INFO] [stderr]   Downloaded mockall v0.10.2
[INFO] [stderr]   Downloaded duplicate v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea5dcd6b589bb0fc18edd8e523eaf0c05a7a8e38c010780c5730e9053431637e
[INFO] running `Command { std: "docker" "start" "-a" "ea5dcd6b589bb0fc18edd8e523eaf0c05a7a8e38c010780c5730e9053431637e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea5dcd6b589bb0fc18edd8e523eaf0c05a7a8e38c010780c5730e9053431637e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea5dcd6b589bb0fc18edd8e523eaf0c05a7a8e38c010780c5730e9053431637e", kill_on_drop: false }`
[INFO] [stdout] ea5dcd6b589bb0fc18edd8e523eaf0c05a7a8e38c010780c5730e9053431637e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c830f03f1831663c4b6f4af1858dec824653a634d2cb136bbaf2cca7fd05f46
[INFO] running `Command { std: "docker" "start" "-a" "5c830f03f1831663c4b6f4af1858dec824653a634d2cb136bbaf2cca7fd05f46", kill_on_drop: false }`
[INFO] [stderr]    Compiling tagged-tree v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "5c830f03f1831663c4b6f4af1858dec824653a634d2cb136bbaf2cca7fd05f46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c830f03f1831663c4b6f4af1858dec824653a634d2cb136bbaf2cca7fd05f46", kill_on_drop: false }`
[INFO] [stdout] 5c830f03f1831663c4b6f4af1858dec824653a634d2cb136bbaf2cca7fd05f46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7bddd9541c700e44606587d025a15cd1b529ef7b0c3913814c1fb056139cb3bf
[INFO] running `Command { std: "docker" "start" "-a" "7bddd9541c700e44606587d025a15cd1b529ef7b0c3913814c1fb056139cb3bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling predicates-core v1.0.3
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling termtree v0.2.4
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling downcast v0.10.0
[INFO] [stderr]    Compiling fragile v1.2.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling mockall_derive v0.10.2
[INFO] [stderr]    Compiling predicates-tree v1.0.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling duplicate v0.3.0
[INFO] [stderr]    Compiling float-cmp v0.8.0
[INFO] [stderr]    Compiling predicates v1.0.8
[INFO] [stderr]    Compiling mockall v0.10.2
[INFO] [stderr]    Compiling tagged-tree v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.00s
[INFO] running `Command { std: "docker" "inspect" "7bddd9541c700e44606587d025a15cd1b529ef7b0c3913814c1fb056139cb3bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bddd9541c700e44606587d025a15cd1b529ef7b0c3913814c1fb056139cb3bf", kill_on_drop: false }`
[INFO] [stdout] 7bddd9541c700e44606587d025a15cd1b529ef7b0c3913814c1fb056139cb3bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ca9ec6708f8a55e8d70871b7aab37fa63d9120c5d7ef5333ce31104cef2f4222
[INFO] running `Command { std: "docker" "start" "-a" "ca9ec6708f8a55e8d70871b7aab37fa63d9120c5d7ef5333ce31104cef2f4222", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tagged_tree-2616e58d454e9ddf)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test iterators::depth_first::tests::go_down_one_level_should_fail ... ok
[INFO] [stdout] test iterators::depth_first::tests::go_down_one_level_should_succeed ... ok
[INFO] [stdout] test iterators::depth_first::tests::go_up_one_level_should_fail ... ok
[INFO] [stdout] test iterators::depth_first::tests::go_up_one_level_should_succeed ... ok
[INFO] [stdout] test iterators::depth_first::tests_mut::go_down_one_level_should_succeed ... ok
[INFO] [stdout] test iterators::depth_first::tests_mut::go_down_one_level_should_fail ... ok
[INFO] [stdout] test iterators::depth_first::tests_mut::go_up_one_level_should_fail ... ok
[INFO] [stderr]      Running tests/basic.rs (/opt/rustwide/target/debug/deps/basic-61dda98a2dd6f062)
[INFO] [stdout] test iterators::depth_first::tests_mut::go_up_one_level_should_succeed ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test can_make_tree ... ok
[INFO] [stdout] test can_make_tree_with_children ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/breadth_first_traversal.rs (/opt/rustwide/target/debug/deps/breadth_first_traversal-4e0575bbf9494060)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test traverse_empty_tree ... ok
[INFO] [stdout] test traverse_empty_tree_mut ... ok
[INFO] [stdout] test traverse_tree_with_one_generation_mut ... ok
[INFO] [stdout] test traverse_tree_with_two_generations ... ok
[INFO] [stdout] test traverse_tree_with_two_generations_mut ... ok
[INFO] [stdout] test traverse_tree_with_one_generation ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/depth_first_traversal.rs (/opt/rustwide/target/debug/deps/depth_first_traversal-01c42bd67546c31b)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test traverse_empty_tree_mut ... ok
[INFO] [stdout] test traverse_empty_tree ... ok
[INFO] [stdout] test traverse_tree_with_one_generation_mut ... ok
[INFO] [stdout] test traverse_tree_with_two_generations ... ok
[INFO] [stdout] test traverse_tree_with_two_generations_mut ... ok
[INFO] [stdout] test traverse_tree_with_one_generation ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tagged-tree
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 387) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.40s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ca9ec6708f8a55e8d70871b7aab37fa63d9120c5d7ef5333ce31104cef2f4222", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca9ec6708f8a55e8d70871b7aab37fa63d9120c5d7ef5333ce31104cef2f4222", kill_on_drop: false }`
[INFO] [stdout] ca9ec6708f8a55e8d70871b7aab37fa63d9120c5d7ef5333ce31104cef2f4222