[INFO] cloning repository https://github.com/dannygale/rs-trees
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dannygale/rs-trees" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdannygale%2Frs-trees", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdannygale%2Frs-trees'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6b46aabb7e2ca6fe3acdeb2eb77ae10294025352
[INFO] testing dannygale/rs-trees against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdannygale%2Frs-trees" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dannygale/rs-trees 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 git repo https://github.com/dannygale/rs-trees
[INFO] finished tweaking git repo https://github.com/dannygale/rs-trees
[INFO] tweaked toml for git repo https://github.com/dannygale/rs-trees written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/dannygale/rs-trees already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded test-env-log v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 55c713ec1bc0d046294f1da24159dd8b83bd9890a30d3402c6cea230cdcfd4cd
[INFO] running `Command { std: "docker" "start" "-a" "55c713ec1bc0d046294f1da24159dd8b83bd9890a30d3402c6cea230cdcfd4cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55c713ec1bc0d046294f1da24159dd8b83bd9890a30d3402c6cea230cdcfd4cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55c713ec1bc0d046294f1da24159dd8b83bd9890a30d3402c6cea230cdcfd4cd", kill_on_drop: false }`
[INFO] [stdout] 55c713ec1bc0d046294f1da24159dd8b83bd9890a30d3402c6cea230cdcfd4cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 9e3be4254969da336a08aed564e7f91f2a7bcca08438748c05cc506f3b621516
[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" "9e3be4254969da336a08aed564e7f91f2a7bcca08438748c05cc506f3b621516", kill_on_drop: false }`
[INFO] [stderr]    Compiling avl-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `NodeIter`
[INFO] [stdout]  --> src/node.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::{NodeIter, BreadthIter};
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "9e3be4254969da336a08aed564e7f91f2a7bcca08438748c05cc506f3b621516", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e3be4254969da336a08aed564e7f91f2a7bcca08438748c05cc506f3b621516", kill_on_drop: false }`
[INFO] [stdout] 9e3be4254969da336a08aed564e7f91f2a7bcca08438748c05cc506f3b621516
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 93abd49be0d657d10f6ffac31c264c125d2ed045edfb87d0e060523544d51f78
[INFO] running `Command { std: "docker" "start" "-a" "93abd49be0d657d10f6ffac31c264c125d2ed045edfb87d0e060523544d51f78", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stdout] warning: unused import: `NodeIter`
[INFO] [stdout]  --> src/node.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::{NodeIter, BreadthIter};
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling pretty_env_logger v0.3.1
[INFO] [stderr]    Compiling quickcheck_macros v0.9.1
[INFO] [stderr]    Compiling test-env-log v0.2.2
[INFO] [stderr]    Compiling avl-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `NodeIter`
[INFO] [stdout]  --> src/node.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::{NodeIter, BreadthIter};
[INFO] [stdout]   |             ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `it`
[INFO] [stdout]    --> src/iter.rs:343:13
[INFO] [stdout]     |
[INFO] [stdout] 343 |         let it = NodeIter::with_root(&tree.root.unwrap());
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_it`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ans_vec`
[INFO] [stdout]    --> src/iter.rs:345:13
[INFO] [stdout]     |
[INFO] [stdout] 345 |         let ans_vec = vec![(4,0), (5,0), (2,0), (6,0), (7,0), (3,0), (1,0)];
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ans_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 27.62s
[INFO] running `Command { std: "docker" "inspect" "93abd49be0d657d10f6ffac31c264c125d2ed045edfb87d0e060523544d51f78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93abd49be0d657d10f6ffac31c264c125d2ed045edfb87d0e060523544d51f78", kill_on_drop: false }`
[INFO] [stdout] 93abd49be0d657d10f6ffac31c264c125d2ed045edfb87d0e060523544d51f78
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6f36b74382dadde51a91d5776c11c5cab5d4d43a569dab6553cff53ecaa1d37f
[INFO] running `Command { std: "docker" "start" "-a" "6f36b74382dadde51a91d5776c11c5cab5d4d43a569dab6553cff53ecaa1d37f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused import: `NodeIter`
[INFO] [stderr]  --> src/node.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::{NodeIter, BreadthIter};
[INFO] [stderr]   |             ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `avl-rs` (lib) generated 1 warning
[INFO] [stderr] warning: unused variable: `it`
[INFO] [stderr]    --> src/iter.rs:343:13
[INFO] [stderr]     |
[INFO] [stderr] 343 |         let it = NodeIter::with_root(&tree.root.unwrap());
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_it`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ans_vec`
[INFO] [stderr]    --> src/iter.rs:345:13
[INFO] [stderr]     |
[INFO] [stderr] 345 |         let ans_vec = vec![(4,0), (5,0), (2,0), (6,0), (7,0), (3,0), (1,0)];
[INFO] [stderr]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ans_vec`
[INFO] [stderr] 
[INFO] [stderr] warning: `avl-rs` (lib test) generated 3 warnings (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/avl_rs-a298840b7d0e5024)
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test iter::tests::test_breadthfirst::f ... ok
[INFO] [stdout] test iter::tests::qc_test_inorder::f ... ok
[INFO] [stdout] test iter::tests::test_preorder::f ... ok
[INFO] [stdout] test node::tests::test_balance_factor::f ... ok
[INFO] [stdout] test node::tests::test_rotate_right::f ... ok
[INFO] [stdout] test node::tests::qc_test_ordering_isize_isize::f ... ok
[INFO] [stdout] test node::tests::test_rotate_left_right::f ... ok
[INFO] [stdout] test node::tests::test_rotate_left::f ... ok
[INFO] [stdout] test node::tests::test_rotate_right_left::f ... ok
[INFO] [stdout] test iter::tests::test_inorder_reversed::f ... ok
[INFO] [stdout] test iter::tests::test_postorder::f ... ok
[INFO] [stdout] test node::tests::qc_test_ordering_isize_string::f ... ok
[INFO] [stdout] test tree::tests::qc_test_put_set_isize_isize ... ok
[INFO] [stdout] test node::tests::qc_test_del::f ... ok
[INFO] [stdout] test node::tests::test_pop_min::f ... ok
[INFO] [stdout] test node::tests::qc_test_get_isize_isize::f ... ok
[INFO] [stdout] test node::tests::qc_test_ordering_string_string::f ... ok
[INFO] [stdout] test node::tests::qc_test_put_isize_isize::f ... ok
[INFO] [stdout] test tree::tests::qc_test_put_set_isize_string ... ok
[INFO] [stdout] test node::tests::qc_test_get_isize_string::f ... ok
[INFO] [stdout] test node::tests::qc_test_put_isize_string::f ... ok
[INFO] [stdout] test tree::tests::qc_test_put_set_string_string ... ok
[INFO] [stdout] test node::tests::qc_test_get_string_string::f ... ok
[INFO] [stderr]    Doc-tests avl-rs
[INFO] [stdout] test node::tests::qc_test_put_string_string::f ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.25s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6f36b74382dadde51a91d5776c11c5cab5d4d43a569dab6553cff53ecaa1d37f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f36b74382dadde51a91d5776c11c5cab5d4d43a569dab6553cff53ecaa1d37f", kill_on_drop: false }`
[INFO] [stdout] 6f36b74382dadde51a91d5776c11c5cab5d4d43a569dab6553cff53ecaa1d37f