[INFO] crate rust_black_tree 0.1.5 is already in cache
[INFO] testing rust_black_tree-0.1.5 against 1.44.0 for beta-1.45-1
[INFO] extracting crate rust_black_tree 0.1.5 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rust_black_tree 0.1.5 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rust_black_tree 0.1.5
[INFO] finished tweaking crates.io crate rust_black_tree 0.1.5
[INFO] tweaked toml for crates.io crate rust_black_tree 0.1.5 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate rust_black_tree 0.1.5 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stdout] dd92e24432bb2a68d3e3e29e2192827d9e93b3a5d7f2214123fca0574b8bc34b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "dd92e24432bb2a68d3e3e29e2192827d9e93b3a5d7f2214123fca0574b8bc34b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling utf8parse v0.1.1
[INFO] [stderr]    Compiling nom v5.1.1
[INFO] [stderr]    Compiling lexical-core v0.6.7
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling isatty v0.1.9
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling rustyline v6.0.0
[INFO] [stderr]    Compiling rust_black_tree v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.07s
[INFO] running `"docker" "inspect" "dd92e24432bb2a68d3e3e29e2192827d9e93b3a5d7f2214123fca0574b8bc34b"`
[INFO] running `"docker" "rm" "-f" "dd92e24432bb2a68d3e3e29e2192827d9e93b3a5d7f2214123fca0574b8bc34b"`
[INFO] [stdout] dd92e24432bb2a68d3e3e29e2192827d9e93b3a5d7f2214123fca0574b8bc34b
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] f1d73b9fab59cce9d00da6f9f09bcb47f929cf67842fb16327ee31ce2b13cc72
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "f1d73b9fab59cce9d00da6f9f09bcb47f929cf67842fb16327ee31ce2b13cc72"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling regex-syntax v0.6.15
[INFO] [stderr]    Compiling oorandom v11.1.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling regex-automata v0.1.8
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling plotters v0.2.12
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling criterion-plot v0.4.1
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling regex v1.3.4
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling bstr v0.2.11
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling tinytemplate v1.0.3
[INFO] [stderr]    Compiling criterion v0.3.1
[INFO] [stderr]    Compiling rust_black_tree v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 52.35s
[INFO] running `"docker" "inspect" "f1d73b9fab59cce9d00da6f9f09bcb47f929cf67842fb16327ee31ce2b13cc72"`
[INFO] running `"docker" "rm" "-f" "f1d73b9fab59cce9d00da6f9f09bcb47f929cf67842fb16327ee31ce2b13cc72"`
[INFO] [stdout] f1d73b9fab59cce9d00da6f9f09bcb47f929cf67842fb16327ee31ce2b13cc72
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5d8cb89b85ede9620ca9f66b6ee40be07c04fea608f69e689fb0ca929e9119a2
[INFO] running `"docker" "start" "-a" "5d8cb89b85ede9620ca9f66b6ee40be07c04fea608f69e689fb0ca929e9119a2"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_black_trees-cd04b56c76a94e6b
[INFO] [stdout] 
[INFO] [stdout] running 33 tests
[INFO] [stdout] test avltree::tests::new ... ok
[INFO] [stdout] test avltree::tests::insert_few ... ok
[INFO] [stdout] test avltree::tests::insert_one ... ok
[INFO] [stdout] test avltree::tests::balance_factor_helpers ... ok
[INFO] [stdout] test node::tests::find_min ... ok
[INFO] [stdout] test node::tests::find_leaf_count ... ok
[INFO] [stdout] test avltree::tests::avl_del ... ok
[INFO] [stdout] test node::tests::get_child_test ... ok
[INFO] [stdout] test node::tests::get_sibling_test ... ok
[INFO] [stdout] test node::tests::get_height ... ok
[INFO] [stdout] test node::tests::print_tree_test ... ok
[INFO] [stdout] test node::tests::get_size ... ok
[INFO] [stdout] test node::tests::get_uncle_test ... ok
[INFO] [stdout] test rbtree::tests::is_empty ... ok
[INFO] [stdout] test rbtree::tests::test_delete_mem ... ok
[INFO] [stdout] test rbtree::tests::find_leaf_count ... ok
[INFO] [stdout] test rbtree::tests::test_height ... ok
[INFO] [stdout] test rbtree::tests::test_contains ... ok
[INFO] [stdout] test rbtree::tests::test_delete ... ok
[INFO] [stdout] test rbtree::tests::test_insert ... ok
[INFO] [stdout] test unbalancetree::tests::test_delete ... ok
[INFO] [stdout] test rbtree::tests::test_insert_2 ... ok
[INFO] [stdout] test unbalancetree::tests::test_contains ... ok
[INFO] [stdout] test rbtree::tests::test_tree_print ... ok
[INFO] [stdout] test unbalancetree::tests::test_tree_print ... ok
[INFO] [stdout] test unbalancetree::tests::test_delete_mem ... ok
[INFO] [stdout] test unbalancetree::tests::test_insert ... ok
[INFO] [stdout] test unbalancetree::tests::test_height ... ok
[INFO] [stdout] test prettynodeprinter::tests::test_easy ... ok
[INFO] [stdout] test prettynodeprinter::tests::test_3 ... ok
[INFO] [stdout] test prettynodeprinter::tests::test_avl ... ok
[INFO] [stdout] test prettynodeprinter::tests::test_4 ... ok
[INFO] [stdout] test prettynodeprinter::tests::test_2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 33 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/demo-4226125f97762875
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust_black_trees
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "5d8cb89b85ede9620ca9f66b6ee40be07c04fea608f69e689fb0ca929e9119a2"`
[INFO] running `"docker" "rm" "-f" "5d8cb89b85ede9620ca9f66b6ee40be07c04fea608f69e689fb0ca929e9119a2"`
[INFO] [stdout] 5d8cb89b85ede9620ca9f66b6ee40be07c04fea608f69e689fb0ca929e9119a2