[INFO] fetching crate Project2 0.1.3...
[INFO] testing Project2-0.1.3 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate Project2 0.1.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate Project2 0.1.3 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate Project2 0.1.3
[INFO] finished tweaking crates.io crate Project2 0.1.3
[INFO] tweaked toml for crates.io crate Project2 0.1.3 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate Project2 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bstr v0.2.11
[INFO] [stderr]   Downloaded regex-syntax v0.6.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-09-08" "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] 8f6796e1c40dea8d389e5ebe30aad3107e2cb93a42de92d84a71b537a252b821
[INFO] running `Command { std: "docker" "start" "-a" "8f6796e1c40dea8d389e5ebe30aad3107e2cb93a42de92d84a71b537a252b821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f6796e1c40dea8d389e5ebe30aad3107e2cb93a42de92d84a71b537a252b821", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f6796e1c40dea8d389e5ebe30aad3107e2cb93a42de92d84a71b537a252b821", kill_on_drop: false }`
[INFO] [stdout] 8f6796e1c40dea8d389e5ebe30aad3107e2cb93a42de92d84a71b537a252b821
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3061e348378be03bba3596849ab53e3079829b16c91fbbd0725c7f257ec91ea
[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" "f3061e348378be03bba3596849ab53e3079829b16c91fbbd0725c7f257ec91ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling Project2 v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `Command { std: "docker" "inspect" "f3061e348378be03bba3596849ab53e3079829b16c91fbbd0725c7f257ec91ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3061e348378be03bba3596849ab53e3079829b16c91fbbd0725c7f257ec91ea", kill_on_drop: false }`
[INFO] [stdout] f3061e348378be03bba3596849ab53e3079829b16c91fbbd0725c7f257ec91ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-09-08" "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] 042868d9381106053506850dee107f9d3cc5f72e42cfc685ad725c571272000d
[INFO] running `Command { std: "docker" "start" "-a" "042868d9381106053506850dee107f9d3cc5f72e42cfc685ad725c571272000d", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling rayon-core v1.7.0
[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 num-traits v0.2.11
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling tinytemplate v1.0.3
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling criterion-plot v0.4.1
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling regex-automata v0.1.8
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling regex v1.3.4
[INFO] [stderr]    Compiling bstr v0.2.11
[INFO] [stderr]    Compiling plotters v0.2.12
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling criterion v0.3.1
[INFO] [stderr]    Compiling Project2 v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 27.33s
[INFO] running `Command { std: "docker" "inspect" "042868d9381106053506850dee107f9d3cc5f72e42cfc685ad725c571272000d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "042868d9381106053506850dee107f9d3cc5f72e42cfc685ad725c571272000d", kill_on_drop: false }`
[INFO] [stdout] 042868d9381106053506850dee107f9d3cc5f72e42cfc685ad725c571272000d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 613c1f2c57ecadd248c3ce1342787ac881cdc4b899ba50f34276a4c10875b38a
[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" "613c1f2c57ecadd248c3ce1342787ac881cdc4b899ba50f34276a4c10875b38a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/Project2-1af1cb0e506e0be1)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/Project2-b9daae1657fde4d2)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test avl_delete ... ok
[INFO] [stdout] test avl_rebalance ... ok
[INFO] [stdout] test test_rb_count_leafs ... ok
[INFO] [stdout] test test_rb_empty ... ok
[INFO] [stdout] test test_rb_delete ... ok
[INFO] [stdout] test test_rb_get_node ... ok
[INFO] [stdout] test test_rb_height ... ok
[INFO] [stdout] test simple_avl_insert ... ok
[INFO] [stdout] test test_rb_insert ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests Project2
[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" "613c1f2c57ecadd248c3ce1342787ac881cdc4b899ba50f34276a4c10875b38a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "613c1f2c57ecadd248c3ce1342787ac881cdc4b899ba50f34276a4c10875b38a", kill_on_drop: false }`
[INFO] [stdout] 613c1f2c57ecadd248c3ce1342787ac881cdc4b899ba50f34276a4c10875b38a